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To display the interfaces in the Cisco Discovery Protocol (CDP) database, use the show cdp all command.
show cdp all
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the interfaces in the CDP database:
switch# show cdp all mgmt0 is up CDP enabled on interface Refresh time is 60 seconds Hold time is 180 seconds Ethernet1/1 is down CDP enabled on interface Refresh time is 60 seconds Hold time is 180 seconds Ethernet1/2 is down CDP enabled on interface Refresh time is 60 seconds Hold time is 180 seconds Ethernet1/3 is down CDP enabled on interface Refresh time is 60 seconds Hold time is 180 seconds Ethernet1/4 is down CDP enabled on interface Refresh time is 60 seconds Hold time is 180 seconds Ethernet1/5 is down CDP enabled on interface Refresh time is 60 seconds Hold time is 180 seconds Ethernet1/6 is down CDP enabled on interface Refresh time is 60 seconds Hold time is 180 seconds <--Output truncated--> switch#
Command |
Description |
---|---|
cdp |
Enables CDP on the switch. |
To display the interfaces in the Cisco Discovery Protocol (CDP) database, use the show cdp entry command.
show cdp entry { all | name device-name }
all |
Displays all interfaces in the CDP database. |
name device-name |
Displays a specific CDP entry matching a name. The device name can be a maximum of 256 alphanumeric characters. |
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display all the entries in the CDP database:
switch# show cdp entry all ---------------------------------------- Device ID:savbu-qa-dist-120 System Name: Interface address(es): IPv4 Address: 192.168.0.82 Platform: cisco WS-C3750E-24TD, Capabilities: Switch IGMP Filtering Interface: mgmt0, Port ID (outgoing port): GigabitEthernet1/0/13 Holdtime: 179 sec Version: Cisco IOS Software, C3750E Software (C3750E-UNIVERSAL-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1) Copyright (c) 1986-2007 by Cisco Systems, Inc. Compiled Thu 19-Jul-07 16:17 by nachen Advertisement Version: 2 Native VLAN: 16 VTP Management Domain: Duplex: full Mgmt address(es): IPv4 Address: 192.168.0.82 ---------------------------------------- Device ID:swor96(SSI13110AAQ) System Name:swor96 Interface address(es): IPv4 Address: 192.168.0.1 Platform: N5K-C5010P-BF, Capabilities: Switch IGMP Filtering Supports-STP-Dispute Interface: Ethernet1/17, Port ID (outgoing port): Ethernet1/19 Holdtime: 167 sec Version: Cisco Nexus Operating System (NX-OS) Software, Version 5.0(3)N2(1) Advertisement Version: 2 Native VLAN: 1 Duplex: full Physical Location: snmplocation Mgmt address(es): IPv4 Address: 192.168.0.96 ---------------------------------------- Device ID:swor96(SSI13110AAQ) System Name:swor96 Interface address(es): IPv4 Address: 192.168.0.1 Platform: N5K-C5010P-BF, Capabilities: Switch IGMP Filtering Supports-STP-Dispute Interface: Ethernet1/18, Port ID (outgoing port): Ethernet1/20 Holdtime: 167 sec Version: Cisco Nexus Operating System (NX-OS) Software, Version 5.0(3)N2(1) Advertisement Version: 2 Native VLAN: 1 Duplex: full Physical Location: snmplocation Mgmt address(es): IPv4 Address: 192.168.0.96 ---------------------------------------- Device ID:swor95(SSI13110AAS) System Name:swor95 Interface address(es): IPv4 Address: 192.168.0.95 Platform: N5K-C5010P-BF, Capabilities: Switch IGMP Filtering Supports-STP-Dispute Interface: Ethernet1/29, Port ID (outgoing port): Ethernet1/19 Holdtime: 173 sec Version: Cisco Nexus Operating System (NX-OS) Software, Version 5.0(3)N2(1) Advertisement Version: 2 Native VLAN: 1 Duplex: full Physical Location: snmplocation Mgmt address(es): IPv4 Address: 192.168.0.95 switch#
This example shows how to display a specific entry from the CDP database:
switch# show cdp entry name swor95(SSI13110AAS) ---------------------------------------- Device ID:swor95(SSI13110AAS) System Name:swor95 Interface address(es): IPv4 Address: 192.168.0.95 Platform: N5K-C5010P-BF, Capabilities: Switch IGMP Filtering Supports-STP-Dispute Interface: Ethernet1/29, Port ID (outgoing port): Ethernet1/19 Holdtime: 173 sec Version: Cisco Nexus Operating System (NX-OS) Software, Version 5.0(3)N2(1) Advertisement Version: 2 Native VLAN: 1 Duplex: full Physical Location: snmplocation Mgmt address(es): IPv4 Address: 192.168.0.95 switch#
Command |
Description |
---|---|
cdp |
Enables CDP on the switch. |
To display the Cisco Discovery Protocol (CDP) global parameters, use the show cdp global command.
show cdp global
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the CDP global parameters:
switch# show cdp global Global CDP information: CDP enabled globally Refresh time is 60 seconds Hold time is 180 seconds CDPv2 advertisements is enabled DeviceID TLV in System-Name(Default) Format switch#
Command |
Description |
---|---|
cdp |
Enables CDP on the switch. |
To display the Cisco Discovery Protocol (CDP) parameters for an interface, use the show cdp interface command.
show cdp interface { ethernet slot / [ QSFP-module / ] port | mgmt mgmt-num }
ethernet slot / port |
Specifies an Ethernet interface. The slot number is from 1 to 255 and the port number is from 1 to 128. |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
mgmt mgmt-num |
Specifies a management interface. The management interface number is 0. |
None
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the CDP parameters for an Ethernet interface:
switch# show cdp interface ethernet 1/30 Ethernet1/30 is down CDP enabled on interface Refresh time is 60 seconds Hold time is 180 seconds switch#
This example shows how to display the CDP parameters for a management interface:
switch# show cdp interface mgmt 0 mgmt0 is up CDP enabled on interface Refresh time is 60 seconds Hold time is 180 seconds switch#
Command |
Description |
---|---|
cdp |
Enables CDP on the switch. |
To display the Cisco Discovery Protocol (CDP) neighbors, use the show cdp neighbors command.
show cdp neighbors [ interface { ethernet slot / [ QSFP-module / ] port | mgmt mgmt-num } ] [detail]
interface |
(Optional) Displays CDP neighbor information for an interface, Ethernet or management. |
ethernet slot / port |
(Optional) Displays CDP neighbor information for an Ethernet interface. The slot number is from 1 to 255 and the port number is from 1 to 128 |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
mgmt mgmt-num |
(Optional) Displays CDP neighbor information for a management interface. The management interface number is 0. |
detail |
(Optional) Displays the detailed information about CDP neighbors. |
None
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display all CDP neighbors:
switch# show cdp neighbors Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge S - Switch, H - Host, I - IGMP, r - Repeater, V - VoIP-Phone, D - Remotely-Managed-Device, s - Supports-STP-Dispute, M - Two-port Mac Relay Device ID Local Intrfce Hldtme Capability Platform Port ID savbu-qa-dist-120 mgmt0 177 S I WS-C3750E-24T Gig1/0/13 swor96(SSI13110AAQ) Eth1/17 165 S I s N5K-C5010P-BF Eth1/19 swor96(SSI13110AAQ) Eth1/18 165 S I s N5K-C5010P-BF Eth1/20 swor95(SSI13110AAS) Eth1/29 171 S I s N5K-C5010P-BF Eth1/19 switch#
This example shows how to display the CDP neighbors for a specific Ethernet interface:
switch# show cdp neighbors interface ethernet 1/29 Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge S - Switch, H - Host, I - IGMP, r - Repeater, V - VoIP-Phone, D - Remotely-Managed-Device, s - Supports-STP-Dispute, M - Two-port Mac Relay Device ID Local Intrfce Hldtme Capability Platform Port ID swor95(SSI13110AAS) Eth1/29 146 S I s N5K-C5010P-BF Eth1/19 switch#
This example shows how to display the detailed information of the CDP neighbors for a specific Ethernet interface:
switch# show cdp neighbors interface ethernet 1/29 detail ---------------------------------------- Device ID:swor95(SSI13110AAS) System Name:swor95 Interface address(es): IPv4 Address: 192.168.0.95 Platform: N5K-C5010P-BF, Capabilities: Switch IGMP Filtering Supports-STP-Disput e Interface: Ethernet1/29, Port ID (outgoing port): Ethernet1/19 Holdtime: 141 sec Version: Cisco Nexus Operating System (NX-OS) Software, Version 5.0(3)N2(1) Advertisement Version: 2 Native VLAN: 1 Duplex: full Physical Location: snmplocation Mgmt address(es): IPv4 Address: 192.168.0.95 switch#
This example shows how to display the CDP neighbors for the management interface:
switch# show cdp neighbors interface mgmt 0 Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge S - Switch, H - Host, I - IGMP, r - Repeater, V - VoIP-Phone, D - Remotely-Managed-Device, s - Supports-STP-Dispute, M - Two-port Mac Relay Device ID Local Intrfce Hldtme Capability Platform Port ID savbu-qa-dist-120 mgmt0 126 S I WS-C3750E-24T Gig1/0/13 switch#
This example shows how to display the detailed information of the CDP neighbors for the management interface:
switch# show cdp neighbors interface mgmt 0 detail ---------------------------------------- Device ID:savbu-qa-dist-120 System Name: Interface address(es): IPv4 Address: 192.168.0.82 Platform: cisco WS-C3750E-24TD, Capabilities: Switch IGMP Filtering Interface: mgmt0, Port ID (outgoing port): GigabitEthernet1/0/13 Holdtime: 179 sec Version: Cisco IOS Software, C3750E Software (C3750E-UNIVERSAL-M), Version 12.2(35)SE5, R ELEASE SOFTWARE (fc1) Copyright (c) 1986-2007 by Cisco Systems, Inc. Compiled Thu 19-Jul-07 16:17 by nachen Advertisement Version: 2 Native VLAN: 16 VTP Management Domain: Duplex: full Mgmt address(es): IPv4 Address: 192.168.0.82 switch#
This example shows how to display the detailed information of all CDP neighbors:
switch# show cdp neighbors detail ---------------------------------------- Device ID:savbu-qa-dist-120 System Name: Interface address(es): IPv4 Address: 192.168.0.82 Platform: cisco WS-C3750E-24TD, Capabilities: Switch IGMP Filtering Interface: mgmt0, Port ID (outgoing port): GigabitEthernet1/0/13 Holdtime: 128 sec Version: Cisco IOS Software, C3750E Software (C3750E-UNIVERSAL-M), Version 12.2(35)SE5, R ELEASE SOFTWARE (fc1) Copyright (c) 1986-2007 by Cisco Systems, Inc. Compiled Thu 19-Jul-07 16:17 by nachen Advertisement Version: 2 Native VLAN: 16 VTP Management Domain: Duplex: full Mgmt address(es): IPv4 Address: 192.168.0.82 ---------------------------------------- Device ID:swor96(SSI13110AAQ) System Name:swor96 Interface address(es): IPv4 Address: 192.168.0.1 Platform: N5K-C5010P-BF, Capabilities: Switch IGMP Filtering Supports-STP-Disput e Interface: Ethernet1/17, Port ID (outgoing port): Ethernet1/19 Holdtime: 175 sec Version: Cisco Nexus Operating System (NX-OS) Software, Version 5.0(3)N2(1) Advertisement Version: 2 Native VLAN: 1 Duplex: full Physical Location: snmplocation Mgmt address(es): IPv4 Address: 192.168.0.96 ---------------------------------------- Device ID:swor96(SSI13110AAQ) System Name:swor96 Interface address(es): IPv4 Address: 192.168.0.1 Platform: N5K-C5010P-BF, Capabilities: Switch IGMP Filtering Supports-STP-Disput e Interface: Ethernet1/18, Port ID (outgoing port): Ethernet1/20 Holdtime: 175 sec Version: Cisco Nexus Operating System (NX-OS) Software, Version 5.0(3)N2(1) Advertisement Version: 2 Native VLAN: 1 Duplex: full Physical Location: snmplocation Mgmt address(es): IPv4 Address: 192.168.0.96 ---------------------------------------- Device ID:swor95(SSI13110AAS) System Name:swor95 Interface address(es): IPv4 Address: 192.168.0.95 Platform: N5K-C5010P-BF, Capabilities: Switch IGMP Filtering Supports-STP-Disput e Interface: Ethernet1/29, Port ID (outgoing port): Ethernet1/19 Holdtime: 121 sec Version: Cisco Nexus Operating System (NX-OS) Software, Version 5.0(3)N2(1) Advertisement Version: 2 Native VLAN: 1 Duplex: full Physical Location: snmplocation Mgmt address(es): IPv4 Address: 192.168.0.95 switch#
Command |
Description |
---|---|
cdp |
Enables CDP on the switch. |
To display the Cisco Discovery Protocol (CDP) traffic statistics, use the show cdp traffic command.
show cdp traffic interface { ethernet slot / [ QSFP-module / ] port | mgmt mgmt-num }
interface |
Displays CDP traffic statistics for an interface, Ethernet or management. |
ethernet slot / port |
Displays CDP traffic statistics for an Ethernet interface. The slot number is from 1 to 255 and the port number is from 1 to 128. |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
mgmt mgmt-num |
Displays CDP traffic statistics for a management interface. The management interface number is 0. |
None
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the CDP traffic statistics for an Ethernet interface:
switch# show cdp traffic interface ethernet 1/29 ---------------------------------------- Traffic statistics for Ethernet1/29 Input Statistics: Total Packets: 3203 Valid CDP Packets: 3203 CDP v1 Packets: 0 CDP v2 Packets: 3203 Invalid CDP Packets: 0 Unsupported Version: 0 Checksum Errors: 0 Malformed Packets: 0 Output Statistics: Total Packets: 3203 CDP v1 Packets: 0 CDP v2 Packets: 3203 Send Errors: 0 switch#
This example shows how to display CDP traffic statistics for a management interface:
switch# show cdp traffic interface mgmt 0 ---------------------------------------- Traffic statistics for mgmt0 Input Statistics: Total Packets: 3201 Valid CDP Packets: 3201 CDP v1 Packets: 0 CDP v2 Packets: 3201 Invalid CDP Packets: 0 Unsupported Version: 0 Checksum Errors: 0 Malformed Packets: 0 Output Statistics: Total Packets: 3201 CDP v1 Packets: 0 CDP v2 Packets: 3201 Send Errors: 0 switch#
Command |
Description |
---|---|
cdp |
Enables CDP on the switch. |
To display a brief summary of the interface configuration information, use the show interface brief command.
show interface brief
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the summary configuration information of the specified interface:
switch# show interface brief -------------------------------------------------------------------------------- Ethernet VLAN Type Mode Status Reason Speed Port Interface Ch # -------------------------------------------------------------------------------- Eth1/1 1 eth trunk up none 10G(D) 4000 Eth1/2 1 eth trunk up none 10G(D) 4000 Eth1/3 1 eth trunk up none 10G(D) 4000 Eth1/4 1 eth trunk up none 10G(D) 4000 Eth1/5 1 eth access down SFP not inserted 10G(D) -- Eth1/6 1 eth access down SFP not inserted 10G(D) -- Eth1/7 1 eth trunk up none 10G(D) 10 Eth1/8 1 eth trunk up none 10G(D) 10 Eth1/9 1 eth trunk up none 10G(D) 10 Eth1/10 1 eth trunk up none 10G(D) 10 Eth1/11 1 eth access down SFP not inserted 10G(D) -- Eth1/12 1 eth access down SFP not inserted 10G(D) -- Eth1/13 1 eth access down SFP not inserted 10G(D) -- Eth1/14 1 eth access down SFP not inserted 10G(D) -- Eth1/15 1 eth access down SFP not inserted 10G(D) -- Eth1/16 1 eth access down SFP not inserted 10G(D) -- Eth1/17 1 eth access down SFP not inserted 10G(D) -- Eth1/18 1 eth access down SFP not inserted 10G(D) -- Eth1/19 1 eth access down SFP not inserted 10G(D) -- Eth1/20 1 eth access down SFP not inserted 10G(D) -- Eth1/21 1 eth access down SFP not inserted 10G(D) -- Eth1/22 1 eth access down SFP not inserted 10G(D) -- Eth1/23 1 eth access down Link not connected 10G(D) -- Eth1/24 1 eth access down Link not connected 10G(D) -- Eth1/25 1 eth access down SFP not inserted 10G(D) -- Eth1/26 1 eth access down SFP not inserted 10G(D) -- Eth1/27 1 eth access down SFP not inserted 10G(D) -- Eth1/28 1 eth access down SFP not inserted 10G(D) -- Eth1/29 1 eth access down SFP not inserted 10G(D) -- Eth1/30 1 eth access down SFP not inserted 10G(D) -- Eth1/31 1 eth access down SFP not inserted 10G(D) -- Eth1/32 1 eth access down SFP not inserted 10G(D) -- Eth1/33 1 eth access down SFP not inserted 10G(D) -- Eth1/34 1 eth access down SFP not inserted 10G(D) -- Eth1/35 1 eth access down SFP not inserted 10G(D) -- Eth1/36 1 eth access down SFP not inserted 10G(D) -- Eth1/37 1 eth access down SFP not inserted 10G(D) -- Eth1/38 1 eth access down SFP not inserted 10G(D) -- Eth1/39 1 eth access down SFP not inserted 10G(D) -- Eth1/40 1 eth trunk up none 10G(D) -- Eth2/1 1 eth access down SFP not inserted 10G(D) -- Eth2/2 1 eth access up none 10G(D) -- Eth2/3 1 eth access down SFP not inserted 10G(D) -- Eth2/4 1 eth access up none 10G(D) -- Eth2/5 1 eth access up none 10G(D) -- Eth2/6 1 eth access down SFP not inserted 10G(D) -- -------------------------------------------------------------------------------- Port-channel VLAN Type Mode Status Reason Speed Protocol Interface -------------------------------------------------------------------------------- Po10 1 eth trunk up none a-10G(D) lacp Po4000 1 eth trunk up none a-10G(D) lacp -------------------------------------------------------------------------------- Port VRF Status IP Address Speed MTU -------------------------------------------------------------------------------- mgmt0 -- up 192.168.10.37 100 1500 ------------------------------------------------------------------------------- Interface Secondary VLAN(Type) Status Reason ------------------------------------------------------------------------------- Vlan1 -- down Administratively down switch#
This example shows how to display the summary configuration information of interfaces, including routed interfaces:
switch# show interface brief -------------------------------------------------------------------------------- Ethernet VLAN Type Mode Status Reason Speed Port Interface Ch # -------------------------------------------------------------------------------- Eth1/1 1 eth access down Link not connected 10G(D) -- Eth1/2 1 eth trunk up none 10G(D) -- Eth1/3 1 eth access down SFP not inserted 10G(D) -- Eth1/4 1 eth access down SFP not inserted 10G(D) -- Eth1/5 -- eth routed up none 10G(D) -- Eth1/5.2 -- eth routed down Configuration Incomplete 10G(D) -- Eth1/6 1 eth access up none 10G(D) -- Eth1/7 1 eth access up none 10G(D) -- Eth1/8 1 eth trunk up none 10G(D) 100 Eth1/9 1 eth access up none 10G(D) -- Eth1/10 1 eth access down Link not connected 10G(D) -- Eth1/11 1 eth access down SFP not inserted 10G(D) -- Eth1/12 1 eth access down SFP not inserted 10G(D) -- Eth1/13 1 eth access down SFP not inserted 10G(D) -- Eth1/14 1 eth access down SFP not inserted 10G(D) -- Eth1/15 1 eth access down SFP not inserted 10G(D) -- Eth1/16 1 eth access down SFP not inserted 10G(D) -- Eth1/17 1 eth access up none 10G(D) -- Eth1/18 1 eth access up none 10G(D) -- Eth1/19 1 eth fabric up none 10G(D) -- Eth1/20 1 eth access down Link not connected 10G(D) -- Eth1/21 1 eth access up none 10G(D) -- Eth1/22 1 eth access down Link not connected 10G(D) -- Eth1/23 1 eth access down SFP not inserted 10G(D) -- Eth1/24 1 eth access down SFP not inserted 10G(D) -- Eth1/25 1 eth access down Link not connected 10G(D) -- Eth1/26 1 eth access down SFP not inserted 10G(D) -- Eth1/27 1 eth access down SFP not inserted 10G(D) -- Eth1/28 1 eth access down SFP not inserted 10G(D) -- Eth1/29 1 eth access down Link not connected 10G(D) -- Eth1/30 1 eth access down SFP not inserted 10G(D) -- Eth1/31 1 eth access down SFP not inserted 10G(D) -- Eth1/32 1 eth access up none 10G(D) -- -------------------------------------------------------------------------------- Port-channel VLAN Type Mode Status Reason Speed Protocol Interface -------------------------------------------------------------------------------- Po100 1 eth trunk up none a-10G(D) none -------------------------------------------------------------------------------- Port VRF Status IP Address Speed MTU -------------------------------------------------------------------------------- mgmt0 -- up 172.29.231.33 1000 1500 ------------------------------------------------------------------------------- Interface Secondary VLAN(Type) Status Reason ------------------------------------------------------------------------------- Vlan1 -- up -- Vlan100 -- up -- -------------------------------------------------------------------------------- Ethernet VLAN Type Mode Status Reason Speed Port Interface Ch # -------------------------------------------------------------------------------- Eth100/1/1 1 eth access up none 10G(D) -- Eth100/1/2 1 eth access down Link not connected auto(D) -- Eth100/1/3 1 eth access up none 10G(D) -- Eth100/1/4 1 eth access down Link not connected auto(D) -- Eth100/1/5 1 eth access down Link not connected auto(D) -- Eth100/1/6 1 eth access down Link not connected auto(D) -- Eth100/1/7 1 eth access down Link not connected auto(D) -- Eth100/1/8 1 eth access down Link not connected auto(D) -- Eth100/1/9 1 eth access down Link not connected auto(D) -- Eth100/1/10 1 eth access up none 10G(D) -- Eth100/1/11 1 eth access down Link not connected auto(D) -- Eth100/1/12 1 eth access down Link not connected auto(D) -- Eth100/1/13 1 eth access down Link not connected auto(D) -- Eth100/1/14 1 eth access down Link not connected auto(D) -- Eth100/1/15 1 eth access up none 10G(D) -- Eth100/1/16 1 eth access down Link not connected auto(D) -- -------------------------------------------------------------------------------- Interface Status Description -------------------------------------------------------------------------------- Lo10 up -- switch#
Note the following in the above display:
This example shows how to display a brief summary of interfaces configured as FabricPath interfaces on a switch that runs Cisco Nexus 5500 Release 5.1(3)N1(1):
switch# show interface brief -------------------------------------------------------------------------------- Ethernet VLAN Type Mode Status Reason Speed Port Interface Ch# -------------------------------------------------------------------------------- Eth1/1 1 eth access down SFP not inserted 1000(D) -- Eth1/2 -- eth routed down SFP not inserted 1000(D) -- Eth1/3 1 eth access down SFP not inserted 10G(D) -- Eth1/4 1 eth access down SFP not inserted 10G(D) -- Eth1/5 1 eth f-path down SFP not inserted 10G(D) -- Eth1/6 1 eth access down Link not connected 10G(D) -- Eth1/7 1 eth fabric down Link not connected 10G(D) -- Eth1/8 1 eth access down SFP not inserted 10G(D) -- Eth1/9 1 eth access down SFP not inserted 10G(D) -- Eth1/10 1 eth access down SFP not inserted 10G(D) -- Eth1/11 1 eth access down SFP not inserted 10G(D) -- Eth1/12 1 eth access down SFP not inserted 10G(D) -- Eth1/13 1 eth access down SFP not inserted 10G(D) -- Eth1/14 1 eth access down SFP not inserted 10G(D) -- Eth1/15 1 eth pvlan up none 1000(D) -- Eth1/16 1 eth access down SFP not inserted 10G(D) -- Eth1/17 1 eth access down SFP not inserted 10G(D) -- switch#
In the above display, Ethernet 1/5 has the mode shown as “f-path” indicating that it has been configured as a FabricPath port.
Command |
Description |
---|---|
interface ethernet |
Configures an Ethernet IEEE 802.3 interface. |
To display detailed information about the capabilities of an interface, use the show interface capabilities command.
show interface ethernet slot / [ QSFP-module / ] port capabilities
ethernet slot / port |
Specifies an Ethernet interface slot number and port number. The slot number is from 1 to 255, and the port number is from 1 to 128. |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
None
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.2(1)N1(1) |
This command was introduced. |
You can use the show interface capabilities command only for physical interfaces.
If the interface and transceiver speed is mismatched, the SFP validation failed message is displayed when you enter the show interface ethernet slot/[QSFP-module/]port command. For example, if you insert a 1-Gigabit SFP transceiver into a port without configuring the speed 1000 command, you will get this error. By default, all ports are 10 Gigabits.
This example shows how to display the interface capabilities for a specific interface:
switch# show interface ethernet 1/1 capabilities Ethernet1/1 Model: N5K-C5020P-BF-XL-SU Type (SFP capable): SFP-H10GB-CU1M Speed: 1000,10000 Duplex: full Trunk encap. type: 802.1Q Channel: yes Broadcast suppression: percentage(0-100) Flowcontrol: rx-(off/on),tx-(off/on) Rate mode: none QOS scheduling: rx-(6q1t),tx-(1p6q0t) CoS rewrite: no ToS rewrite: no SPAN: yes UDLD: yes Link Debounce: yes Link Debounce Time: yes MDIX: no Pvlan Trunk capable: yes TDR capable: no Port mode: Switched FEX Fabric: yes switch#
Command |
Description |
---|---|
interface ethernet |
Configures an Ethernet IEEE 802.3 interface. |
To display the debounce time information for all interfaces, use the show interface debounce command.
show interface debounce
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the debounce status of all interfaces:
switch# show interface debounce -------------------------------------------------------------------------------- Port Debounce time Value(ms) -------------------------------------------------------------------------------- Eth1/1 enable 100 Eth1/2 enable 100 Eth1/3 enable 100 Eth1/4 enable 100 Eth1/5 enable 100 Eth1/6 enable 100 Eth1/7 enable 100 Eth1/8 enable 100 Eth1/9 enable 100 Eth1/10 enable 100 Eth1/11 enable 100 Eth1/12 enable 100 Eth1/13 enable 100 Eth1/14 enable 100 Eth1/15 enable 100 Eth1/16 enable 100 Eth1/17 enable 100 Eth1/18 enable 100 Eth1/19 enable 100 Eth1/20 enable 100 Eth1/21 enable 100 Eth1/22 enable 100 Eth1/23 enable 100 Eth1/24 enable 100 Eth1/25 enable 100 Eth1/26 enable 100 Eth1/27 enable 100 Eth1/28 enable 100 Eth1/29 enable 100 Eth1/30 enable 100 Eth1/31 enable 100 Eth1/32 enable 100 --More-- switch#
Command |
Description |
---|---|
link debounce |
Enables the debounce timer on an interface. |
To display information about the interface configuration, use the show interface ethernet command.
show interface ethernet slot / [ QSFP-module / ] port [ . subintf-port-no ] [ brief | counters | description | status | switchport ]
slot / port |
Ethernet interface slot number and port number. The slot number is from 1 to 255, and the port number is from 1 to 128. |
||
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
||
. |
(Optional) Specifies the subinterface separator.
|
||
subintf-port-no |
(Optional) Port number for the subinterface. The range is from 1 to 48.
|
||
brief |
(Optional) Displays brief information about the interfaces. |
||
counters |
(Optional) Displays information about the counters configured on an interface. |
||
description |
(Optional) Displays the description of an interface configuration. |
||
status |
(Optional) Displays the operational state of the interface. |
||
switchport |
(Optional) Displays the switchport information of an interface. |
Displays all information for the interface.
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.2(1)N1(1) |
This command was introduced. |
If the interface and transceiver speed is mismatched, the SFP validation failed message is displayed when you enter the show interface ethernet slot/[QSFP-module/]port command. For example, if you insert a 1-Gigabit SFP transceiver into a port without configuring the speed 1000 command, you will get this error.
By default, all ports on a Cisco Nexus 5000 Series switch are 10 Gigabits.
This example shows how to display the detailed configuration of the specified interface:
switch# show interface ethernet 1/1 Ethernet1/1 is up Hardware: 1000/10000 Ethernet, address: 000d.ece7.df48 (bia 000d.ece7.df48) MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA Port mode is fex-fabric full-duplex, 10 Gb/s, media type is 1/10g Beacon is turned off Input flow-control is off, output flow-control is off Rate mode is dedicated Switchport monitor is off Last link flapped 09:03:57 Last clearing of "show interface" counters never 30 seconds input rate 2376 bits/sec, 0 packets/sec 30 seconds output rate 1584 bits/sec, 0 packets/sec Load-Interval #2: 5 minute (300 seconds) input rate 1.58 Kbps, 0 pps; output rate 792 bps, 0 pps RX 0 unicast packets 10440 multicast packets 0 broadcast packets 10440 input packets 11108120 bytes 0 jumbo packets 0 storm suppression packets 0 runts 0 giants 0 CRC 0 no buffer 0 input error 0 short frame 0 overrun 0 underrun 0 ignored 0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop 0 input with dribble 0 input discard 0 Rx pause TX 0 unicast packets 20241 multicast packets 105 broadcast packets 20346 output packets 7633280 bytes 0 jumbo packets 0 output errors 0 collision 0 deferred 0 late collision 0 lost carrier 0 no carrier 0 babble 0 Tx pause 1 interface resets switch#
This example shows how to display the counters configured on a specified interface:
switch# show interface ethernet 1/1 counters -------------------------------------------------------------------------------- Port InOctets InUcastPkts InMcastPkts InBcastPkts -------------------------------------------------------------------------------- Eth1/1 17193136 0 16159 0 -------------------------------------------------------------------------------- Port OutOctets OutUcastPkts OutMcastPkts OutBcastPkts -------------------------------------------------------------------------------- Eth1/1 11576758 0 28326 106 switch#
This example shows how to display the information for an interface configured for Adapter-FEX:
switch# show interface ethernet 1/2 Ethernet1/2 is up Hardware: 1000/10000 Ethernet, address: 000d.ecb0.fc49 (bia 000d.ecb0.fc49) MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA Port mode is vntag full-duplex, 1000 Mb/s, media type is 10G Beacon is turned off Input flow-control is off, output flow-control is on Rate mode is dedicated Switchport monitor is off EtherType is 0x8100 Last link flapped 00:00:13 Last clearing of "show interface" counters 1d05h 30 seconds input rate 0 bits/sec, 0 bytes/sec, 0 packets/sec 30 seconds output rate 1328 bits/sec, 166 bytes/sec, 0 packets/sec Load-Interval #2: 5 minute (300 seconds) input rate 0 bps, 0 pps; output rate 160 bps, 0 pps RX 32453811602 unicast packets 649076 multicast packets 0 broadcast packets 32454460682 input packets 2206903326245 bytes 0 jumbo packets 0 storm suppression packets 3 runts 0 giants 1 CRC 0 no buffer 4 input error 0 short frame 0 overrun 0 underrun 0 ignored 0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop 0 input with dribble 0 input discard 0 Rx pause TX 33695526841 unicast packets 36871810887 multicast packets 72059438 broadca st packets 70639397169 output packets 4803378946692 bytes 0 jumbo packets 3 output errors 0 collision 0 deferred 0 late collision 0 lost carrier 0 no carrier 0 babble 0 Tx pause 2 interface resets switch#
The above display shows the port mode configured as a virtual network tag (VNTag) port.
This example shows how to display the detailed configuration information of a specified subinterface:
switch# show interface ethernet 1/5.2 Ethernet1/5.2 is up Hardware: 1000/10000 Ethernet, address: 0005.73a6.1dbc (bia 0005.73a6.1d6c) Description: Eth 1/5.2 subinterfaces Internet Address is 192.0.0.3/24 MTU 1500 bytes, BW 1500 Kbit, DLY 2000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation 802.1Q Virtual LAN, Vlan ID 100 EtherType is 0x8100 switch#
This example shows how to display the brief configuration information of a specified subinterface:
switch# show interface ethernet 1/5.2 brief -------------------------------------------------------------------------------- Ethernet VLAN Type Mode Status Reason Speed Port Interface Ch # -------------------------------------------------------------------------------- Eth1/5.2 100 eth routed up none 10G(D) -- switch#
This example shows how to display the purpose of a specified subinterface:
switch# show interface ethernet 1/5.2 description ------------------------------------------------------------------------------- Port Type Speed Description ------------------------------------------------------------------------------- Eth1/5.2 eth 10G Eth 1/5.2 subinterfaces switch#
This example shows how to display the switchport information for a specific interface:
switch# show interface ethernet 1/2 switchport Name: Ethernet1/2 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: trunk Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-800 Pruning VLANs Enabled: 2-1001 Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled Monitor destination rate-limit: 1G switch#
In the above display, the Monitor destination rate-limit field displays the rate limit configured on a switchport interface on a Cisco Nexus 5010 Series switch.
Note | You can configure the monitor destination rate-limit only on a Cisco Nexus 5010 Series switch or Cisco Nexus 5020 Series switch. |
This example shows how to display the information about a specific Ethernet interface that is bound to a virtual Ethernet interface:
switch(config)# interface vethernet 10 switch(config-if)# bind interface ethernet 1/5 channel 10 switch(config-if)# inherit port-profile ppVEth switch(config-if)# untagged cos 3 switch(config-if)# exit switch(config)# exit switch# show interface ethernet 1/5 brief -------------------------------------------------------------------------------- Ethernet VLAN Type Mode Status Reason Speed Port Interface Ch # -------------------------------------------------------------------------------- Eth1/5 -- eth routed down SFP not inserted 10G(D) 10 switch#
The following table describes the significant fields in the above display.
Field |
Description |
---|---|
Ethernet Interface |
Ethernet interface information. |
VLAN |
VLANs associated with the Ethernet interface. |
Type |
Type of interface. |
Mode |
Mode configured for the interface: access, trunk, routed (applies to Layer 3 interfaces), and vlan. |
Status |
Indicates whether the interface hardware is currently active (up), is currently inactive (down), or has been taken down by an administrator (administratively down). |
Reason |
Indicates the reason the interface is inactive or administratively down. |
Speed |
Interface speed. |
Port Ch # |
EtherChannel associated with the interface. |
This example shows how to display the MAC address of a specified subinterface:
switch# show interface ethernet 1/5.2 mac-address -------------------------------------------------------------------------------- Interface Mac-Address Burn-in Mac-Address -------------------------------------------------------------------------------- Ethernet1/5.2 0005.73a6.1dbc 0005.73a6.1d6c switch#
Command |
Description |
---|---|
interface ethernet |
Configures an Ethernet IEEE 802.3 interface. |
interface ethernet (Layer 3) |
Configures a Layer 3 Ethernet IEEE 802.3 interface. |
switchport mode vntag |
Configures an Ethernet interface as a VNTag port. |
switchport monitor rate-limit |
Configures the rate limit for traffic on an interface. |
To display information about the loopback interface, use the show interface loopback command.
show interface loopback lo-number [ brief | description ]
lo-number |
Loopback interface number. The range is from 0 to 1023. |
brief |
(Optional) Displays a brief summary of the loopback interface information. |
description |
(Optional) Displays the description provided for the loopback interface. |
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N1(1) |
This command was introduced. |
This example shows how to display the configuration information for a specific loopback interface:
switch# show interface loopback 10 loopback10 is up Hardware: Loopback MTU 1500 bytes, BW 8000000 Kbit, DLY 5000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation LOOPBACK 0 packets input 0 bytes 0 multicast frames 0 compressed 0 input errors 0 frame 0 overrun 0 fifo 0 packets output 0 bytes 0 underruns 0 output errors 0 collisions 0 fifo switch#
The following table describes the significant fields shown in the display.
Field |
Description |
---|---|
Loopback is ... |
Indicates whether the interface hardware is currently active (whether carrier detect is present), is currently inactive (down), or has been taken down by an administrator (administratively down). |
Hardware |
Hardware is Loopback. |
MTU |
Maximum transmission unit (MTU) of the interface. |
BW |
Bandwidth (BW) of the interface in kilobits per second. |
DLY |
Delay (DLY) of the interface in microseconds. |
reliability |
Reliability of the interface as a fraction of 255 (255/255 is 100 percent reliability), calculated as an exponential average over 5 minutes. |
txload |
Load on the interface for transmitting packets as a fraction of 255 (255/255 is completely saturated), calculated as an exponential average over 5 minutes. |
rxload |
Load on the interface for receiving packets as a fraction of 255 (255/255 is completely saturated), calculated as an exponential average over 5 minutes. |
Encapsulation |
Encapsulation method assigned to interface. |
LOOPBACK |
Indicates whether loopback is set. |
packets input |
Total number of error-free packets received by the system. |
bytes |
Total number of bytes, including data and MAC encapsulation, in the error-free packets received by the system. |
multicast frames |
Total number of multicast frames enabled on the interface. |
compressed |
Total number of multicast frames compressed on the interface. |
input errors |
Sum of all errors that prevented the receipt of datagrams on the interface being examined. This may not balance with the sum of the enumerated output errors, because some datagrams may have more than one error and others may have errors that do not fall into any of the specifically tabulated categories. |
frame |
Number of packets received incorrectly having a CRC error and a noninteger number of octets. On a serial line, this is usually the result of noise or other transmission problems. |
overrun |
Number of times the serial receiver hardware was unable to hand received data to a hardware buffer because the input rate exceeded the receiver’s ability to handle the data. |
fifo |
Number of First In, First Out (FIFO) errors in the receive direction. |
packets output |
Total number of messages transmitted by the system. |
bytes |
Total number of bytes, including data and MAC encapsulation, transmitted by the system. |
underruns |
Number of times that the far-end transmitter has been running faster than the near-end router’s receiver can handle. This may never happen (be reported) on some interfaces. |
output errors |
Sum of all errors that prevented the final transmission of datagrams out of the interface being examined. Note that this may not balance with the sum of the enumerated output errors, as some datagrams may have more than one error, and others may have errors that do not fall into any of the specifically tabulated categories. |
collisions |
Loopback interface does not have collisions. |
fifo |
Number of First In, First Out (FIFO) errors in the transmit direction. |
This example shows how to display the brief information for a specific loopback interface:
switch# show interface loopback 10 brief -------------------------------------------------------------------------------- Interface Status Description -------------------------------------------------------------------------------- loopback10 up -- switch#
Command |
Description |
---|---|
interface loopback |
Configures a loopback interface. |
To display the information about the MAC address, use the show interface mac-address command.
show interface [ type slot / [ QSFP-module / ] port | portchannel-no ] mac-address
type |
(Optional) Interface for which MAC addresses should be displayed. T he type can be either Ethernet or EtherChannelor vethernet. |
slot / port |
Ethernet interface port number and slot number. The slot number is from 1 to 255, and the port number is from 1 to 128. |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
portchannel-no |
EtherChannel number. The EtherChannel number is from 1 to 4096. |
None
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.2(1)N1(1) |
This command was introduced. |
If you do not specify an interface, the system displays all the MAC addresses.
This example shows how to display the information on MAC addresses for the entire switch:
switch# show interface mac-address ---------------------------------------------------------------------------- Interface Mac-Address Burn-in Mac-Address ---------------------------------------------------------------------------- Ethernet1/1 0005.9b78.6e7c 0005.9b78.6e48 Ethernet1/2 0005.9b78.6e7c 0005.9b78.6e49 Ethernet1/3 0005.9b78.6e7c 0005.9b78.6e4a Ethernet1/4 0005.9b78.6e7c 0005.9b78.6e4b Ethernet1/5 0005.9b78.6e7c 0005.9b78.6e4c Ethernet1/6 0005.9b78.6e7c 0005.9b78.6e4d Ethernet1/7 0005.9b78.6e7c 0005.9b78.6e4e Ethernet1/8 0005.9b78.6e7c 0005.9b78.6e4f Ethernet1/9 0005.9b78.6e7c 0005.9b78.6e50 Ethernet1/10 0005.9b78.6e7c 0005.9b78.6e51 Ethernet1/11 0005.9b78.6e7c 0005.9b78.6e52 Ethernet1/12 0005.9b78.6e7c 0005.9b78.6e53 Ethernet1/13 0005.9b78.6e7c 0005.9b78.6e54 Ethernet1/14 0005.9b78.6e7c 0005.9b78.6e55 Ethernet1/15 0005.9b78.6e7c 0005.9b78.6e56 Ethernet1/16 0005.9b78.6e7c 0005.9b78.6e57 Ethernet1/17 0005.9b78.6e7c 0005.9b78.6e58 Ethernet1/18 0005.9b78.6e7c 0005.9b78.6e59 Ethernet1/19 0005.9b78.6e7c 0005.9b78.6e5a Ethernet1/20 0005.9b78.6e7c 0005.9b78.6e5b Ethernet1/21 0005.9b78.6e7c 0005.9b78.6e5c Ethernet1/22 0005.9b78.6e7c 0005.9b78.6e5d --More-- switch#
This example shows how to display the MAC address information for a specific port channel:
switch# show interface port-channel 5 mac-address ------------------------------------------------------------------------ Interface Mac-Address Burn-in Mac-Address ------------------------------------------------------------------------ port-channel5 0005.9b78.6e7c 0005.9b78.6e7c switch#
Command |
Description |
---|---|
mac address-table static |
Adds static entries to the MAC address table or configures a static MAC address with IGMP snooping disabled for that address. |
show mac address-table |
Displays information on the MAC address table. |
To display the configuration information for a management interface, use the show interface mgmt command.
show interface mgmt intf-num [ brief | capabilities | counters [ detailed [all] | errors [snmp] ] | description | status ]
intf-num |
Management interface number. The value is 0. |
brief |
(Optional) Displays a summary of the configuration information for the management interface. |
capabilities |
(Optional) Displays the interface capabilities information. |
counters |
(Optional) Displays information about the management interface counters. |
detailed |
(Optional) Displays detailed information of only the nonzero interface counters. |
all |
(Optional) Displays all nonzero interface counters. |
errors |
(Optional) Displays the interface error counters, such as receive or transmit error counters. |
snmp |
(Optional) Displays the Simple Network Management Protocol (SNMP) MIB values for the nonzero interface counters. |
description |
(Optional) Displays the interface description. |
status |
(Optional) Displays the interface line status. |
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the configuration information of the management interface:
switch# show interface mgmt 0 mgmt0 is up Hardware: GigabitEthernet, address: 0005.9b74.a6c1 (bia 0005.9b74.a6c1) Internet Address is 10.193.51.174/21 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA full-duplex, 1000 Mb/s EtherType is 0x0000 1 minute input rate 11336 bits/sec, 9 packets/sec 1 minute output rate 2248 bits/sec, 3 packets/sec Rx 22722587 input packets 7487592 unicast packets 7082728 multicast packets 8152267 broadcast packets 3375124199 bytes Tx 7618171 output packets 7283211 unicast packets 334751 multicast packets 209 broadcast packets 1056259251 bytes switch#
This example shows how to display the summary configuration information of the management interface:
switch# show interface mgmt 0 brief
Command |
Description |
---|---|
interface mgmt |
Configures a management interface. |
To display the information about an EtherChannel interface configuration, use the show interface port-channel command.
show interface port-channel number [ . subinterface-number ] [ brief | counters | description | status ]
number |
EtherChannel number. The range is from 1 to 4096. |
. subinterface-number |
(Optional) Port-channel subinterface configuration. Use the EtherChannel number followed by a dot (.) indicator and the subinterface number. The format is: portchannel-number.subinterface-number |
counters |
(Optional) Displays information about the counters configured on the EtherChannel interface. |
description |
(Optional) Displays the description of the EtherChannel interface configuration. |
status |
(Optional) Displays the operational state of the EtherChannel interface. |
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the configuration information of a specified EtherChannel interface:
switch# show interface port-channel 21 port-channel21 is up Hardware: Port-Channel, address: 000d.ece7.df72 (bia 000d.ece7.df72) MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA Port mode is trunk full-duplex, 10 Gb/s Beacon is turned off Input flow-control is on, output flow-control is on Switchport monitor is off Members in this channel: Eth2/3 Last clearing of "show interface" counters never 30 seconds input rate 0 bits/sec, 0 packets/sec 30 seconds output rate 352 bits/sec, 0 packets/sec Load-Interval #2: 5 minute (300 seconds) input rate 0 bps, 0 pps; output rate 368 bps, 0 pps RX 0 unicast packets 0 multicast packets 0 broadcast packets 0 input packets 0 bytes 0 jumbo packets 0 storm suppression packets 0 runts 0 giants 0 CRC 0 no buffer 0 input error 0 short frame 0 overrun 0 underrun 0 ignored 0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop 0 input with dribble 0 input discard 0 Rx pause TX 0 unicast packets 15813 multicast packets 9 broadcast packets 15822 output packets 1615917 bytes 0 jumbo packets 0 output errors 0 collision 0 deferred 0 late collision 0 lost carrier 0 no carrier 0 babble 0 Tx pause 1 interface resets switch#
Command |
Description |
---|---|
interface port-channel |
Configures an EtherChannel interface. |
To display the error disabled state of interfaces, use the show interface status err-disabled command.
show interface status err-disabled
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the error disabled state of interfaces:
switch# show interface status err-disabled ----------------------------------------------------------------------- Port Name Status Reason ----------------------------------------------------------------------- Eth114/1/27 -- down BPDUGuard errDisable Eth114/1/28 -- down BPDUGuard errDisable Eth114/1/29 -- down BPDUGuard errDisable Eth114/1/30 -- down BPDUGuard errDisable Eth114/1/31 -- down BPDUGuard errDisable Eth114/1/32 -- down BPDUGuard errDisable Eth114/1/33 -- down BPDUGuard errDisable Eth114/1/34 -- down BPDUGuard errDisable Eth114/1/35 -- down BPDUGuard errDisable Eth114/1/36 -- down BPDUGuard errDisable Eth114/1/39 -- down BPDUGuard errDisable Eth114/1/40 -- down BPDUGuard errDisable Eth114/1/41 -- down BPDUGuard errDisable Eth114/1/42 -- down BPDUGuard errDisable Eth114/1/43 -- down BPDUGuard errDisable Eth114/1/44 -- down BPDUGuard errDisable Eth114/1/45 -- down BPDUGuard errDisable Eth114/1/46 -- down BPDUGuard errDisable Eth114/1/47 -- down BPDUGuard errDisable --More-- switch#
Command |
Description |
---|---|
errdisable detect cause |
Enables the error disabled (err-disabled) detection. |
errdisable recovery cause |
Enables error disabled recovery on an interface. |
To display information about all the switch port interfaces, use the show interface switchport command.
show interface switchport
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
You can configure the rate limit on the following Cisco Nexus 5000 Series switches using the switchport monitor rate-limit 1G command:
This command does not require a license.
This example shows how to display information for all Ethernet and virtual Ethernet interfaces:
switch# show interface switchport Name: Ethernet1/1 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: fex-fabric Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1-3967,4048-4093 Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled Name: Ethernet1/2 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: fex-fabric Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1-3967,4048-4093 Administrative private-vlan primary host-association: none --More-- switch#
This example shows how to display information for all Ethernet and virtual Ethernet interfaces on a switch that runs Cisco NX-OS Release 5.0(3)N1(1):
switch# show interface switchport Name: Ethernet1/1 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: fex-fabric Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-795,900,1002-1005 Pruning VLANs Enabled: 2-1001 Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled Name: Ethernet1/2 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: vntag Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-795 Pruning VLANs Enabled: 2-1001 Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled Name: Ethernet1/3 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: trunk Access Mode VLAN: 700 (VLAN0700) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-795 <--snip--> : : Name: port-channel4000 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: access Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-795,900,1002-1005 Pruning VLANs Enabled: 2-1001 Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled Name: Vethernet2 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: access Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-795,900,1002-1005 Pruning VLANs Enabled: 2-1001 Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled Name: Vethernet10 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: access Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-795,900,1002-1005 Pruning VLANs Enabled: 2-1001 Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled Name: Ethernet101/1/1 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: access Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-795,900,1002-1005 Pruning VLANs Enabled: 2-1001 Administrative private-vlan primary host-association: none <--Output truncated--> switch#
This example shows how to display the rate limit status for Ethernet interface 1/2:
switch# show interface switchport BEND-2(config-if)# show interface switchport Name: Ethernet1/1 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: fex-fabric Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-800,900 Pruning VLANs Enabled: 2-1001 Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled Name: Ethernet1/2 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: trunk Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,300-800 Pruning VLANs Enabled: 2-1001 Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled Monitor destination rate-limit: 1G Name: Ethernet1/3 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: trunk Access Mode VLAN: 700 (VLAN0700) Trunking Native Mode VLAN: 1 (default) <--Output truncated--> switch #
In the above display, the significant field for Ethernet interface 1/2 is highlighted.
This example shows how to display the voice VLAN information for an Ethernet interface on a switch that runs Cisco NX-OS Release 5.0(3)N2(1):
switch# show interface ethernet 1/28 switchport Name: Ethernet1/28 Switchport: Enabled Switchport Monitor: Not enabled Operational Mode: access Access Mode VLAN: 3000 (VLAN3000) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: 1,200,300-302,500,2001-2248,3000-3001,4049,4090 Pruning VLANs Enabled: 2-1001 Voice VLAN: 3 Extended Trust State : not trusted [COS = 0] Administrative private-vlan primary host-association: none Administrative private-vlan secondary host-association: none Administrative private-vlan primary mapping: none Administrative private-vlan secondary mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Unknown unicast blocked: disabled Unknown multicast blocked: disabled switch#
Command |
Description |
---|---|
switchport access vlan |
Sets the access VLAN when the interface is in access mode. |
switchport monitor rate-limit |
Configures the rate limit for traffic on an interface. |
To display information about all the switch port Flex Links interfaces, use the show interface switchport backup command.
show interface switchport backup [detail]
detail |
(Optional) Displays detailed information for backup interfaces. |
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display information for all Flex Links:
switch# show interface switchport backup Switch Backup Interface Pairs: Active Interface Backup Interface State ------------------------------------------------------------------------ Ethernet1/2 Ethernet1/1 Active Down/Backup Down Ethernet1/20 Ethernet1/21 Active Down/Backup Down port-channel300 port-channel301 Active Up/Backup Down port-channel500 port-channel501 Active Down/Backup Down port-channel502 port-channel503 Active Down/Backup Down port-channel504 Ethernet2/1 Active Down/Backup Down switch#
This example shows how to display the detailed information for all Flex Links:
switch# show interface switchport backup detail Switch Backup Interface Pairs: Active Interface Backup Interface State ------------------------------------------------------------------------ Ethernet1/2 Ethernet1/1 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 1000000 Kbit (Ethernet1/2), 10000000 Kbit (Ethernet1/1) Ethernet1/20 Ethernet1/21 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 10000000 Kbit (Ethernet1/20), 10000000 Kbit (Ethernet1/21) port-channel300 port-channel301 Active Up/Backup Down Preemption Mode : forced Preemption Delay : 35 seconds (default) Multicast Fast Convergence : On Bandwidth : 20000000 Kbit (port-channel300), 10000000 Kbit (port-channel 301) port-channel500 port-channel501 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : On Bandwidth : 100000 Kbit (port-channel500), 100000 Kbit (port-channel501) port-channel502 port-channel503 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 100000 Kbit (port-channel502), 100000 Kbit (port-channel503) port-channel504 Ethernet2/1 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 100000 Kbit (port-channel504), 0 Kbit (Ethernet2/1) switch#
The following table describes the significant fields displayed in the output.
Field |
Description |
---|---|
Active Interface |
Layer 2 interface being configured. |
Backup Interface |
Layer 2 interface to act as a backup link to the interface being configured. |
State |
Flex Links status. |
Preemption Mode |
Preemption scheme for a backup interface pair. |
Preemption Delay |
Preemption delay configured for a backup interface pair. |
Multicast Fast Convergence |
Fast convergence configured on the backup interface. |
Bandwidth |
Bandwidth configured on the backup interface. |
Command |
Description |
---|---|
switchport backup interface |
Configures Flex Links. |
show running-config backup |
Displays the running configuration information for backup interfaces. |
show running-config flexlink |
Displays the running configuration information for Flex Links. |
To display the information about the transceivers connected to a specific interface, use the show interface transceiver command.
show interface ethernet slot / [ QSFP-module / ] port transceiver [details]
ethernet slot / port |
Displays information about an Ethernet interface slot number and port number. The slot number is from 1 to 255, and the port number is from 1 to 128. |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
details |
(Optional) Displays detailed information about the transceivers on an interface. |
transceiver |
Displays information about interfaces connected to transceiver modules. |
details |
(Optional) Displays detailed information about the transceivers on an interface. |
calibrations |
(Optional) Displays calibration information about the transceivers on an interface. |
sprom |
(Optional) Displays sprom information about the transceivers on an interface. |
None
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.2(1)N1(1) |
This command was introduced. |
You can use the show interface transceiver command only for physical interfaces.
This example shows how to display the transceivers connected to a specified Ethernet interface:
switch# show interface ethernet 1/1 transceiver Ethernet1/1 transceiver is present type is SFP-H10GB-CU1M name is CISCO-MOLEX part number is 74752-9044 revision is 07 serial number is MOC14081360 nominal bitrate is 10300 MBit/sec Link length supported for copper is 1 m cisco id is -- cisco extended id number is 4 switch#
The following example shows how to display calibration information of transceivers connected to a specified ethernet interface:
switch# show interface ethernet 1/1 transceiver calibrations Ethernet1/1 transceiver is present type is 10Gbase-SR name is CISCO-SUMITOMO part number is SPP5100SR-C1 revision is A serial number is SPC142704M6 nominal bitrate is 10300 MBit/sec Link length supported for 50/125um OM2 fiber is 82 m Link length supported for 62.5/125um fiber is 26 m Link length supported for 50/125um OM3 fiber is 300 m cisco id is -- cisco extended id number is 4 SFP Internal Calibrations Information ---------------------------------------------------------------------- Slope Offset Rx4/Rx3/Rx2/Rx1/Rx0 ---------------------------------------------------------------------- Temperature 256 0 Voltage 256 0 Current 256 0 Tx Power 256 0 Rx Power 0.0000/0.0000/0.0000/1.0000/0.0000 ----------------------------------------------------------------------
The following example shows how to display detailed information of transceivers connected to a specified ethernet interface:
switch# show interface ethernet 1/1 transceiver details Ethernet1/1 transceiver is present type is 10Gbase-SR name is CISCO-SUMITOMO part number is SPP5100SR-C1 revision is A serial number is SPC142704M6 nominal bitrate is 10300 MBit/sec Link length supported for 50/125um OM2 fiber is 82 m Link length supported for 62.5/125um fiber is 26 m Link length supported for 50/125um OM3 fiber is 300 m cisco id is -- cisco extended id number is 4 SFP Detail Diagnostics Information (internal calibration) ---------------------------------------------------------------------------- Current Alarms Warnings Measurement High Low High Low ---------------------------------------------------------------------------- Temperature 49.54 C 75.00 C -5.00 C 70.00 C 0.00 C Voltage 3.21 V 3.63 V 2.97 V 3.46 V 3.13 V Current 6.46 mA 10.50 mA 2.00 mA 9.00 mA 2.50 mA Tx Power -2.22 dBm 1.69 dBm -11.30 dBm -1.30 dBm -7.30 dBm Rx Power -2.19 dBm 1.99 dBm -13.97 dBm -1.00 dBm -9.91 dBm ---------------------------------------------------------------------------- Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning
The show interface transceiver details command output:
When the small form-factor pluggable (SFP) port is shut down and the laser is turned off, the value of the Current field in the output will be close to zero and the Tx power value will be at a minimum (close to -40 dBm).
When the SFP port is shutdown and the laser is not turned off, the Current and Tx power values will stay at operational levels. The Rx power value will depend on the behavior of the remote side of the link and the interface status—it can either stay at an operational level, or at a minimum (close to -40 dBm), or N/A.
Note | The output for the show interface transceiver command will vary based on the transceiver type, name, part number, revision, and link length of the device. |
Command |
Description |
---|---|
interface ethernet |
Configures an Ethernet IEEE 802.3 interface. |
show interface capabilities |
Displays detailed information about the capabilities of an interface. |
To display Link Aggregation Control Protocol (LACP) information, use the show lacp command.
show lacp { counters | interface ethernet slot / [ QSFP-module / ] port | neighbor [ interface port-channel number ] | port-channel [ interface port-channel number ] | system-identifier }
counters |
Displays information about the LACP traffic statistics. |
interface ethernet slot / port |
Displays LACP information for a specific Ethernet interface. The slot number is from 1 to 255, and the port number is from 1 to 128. |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
neighbor |
Displays information about the LACP neighbor. |
port-channel |
Displays information about all EtherChannels. |
interface port-channel number |
(Optional) Displays information about a specific EtherChannel. The EtherChannel number is from 1 to 4096. |
system-identifier |
Displays the LACP system identification. It is a combination of the port priority and the MAC address of the device. |
None
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.2(1)N1(1) |
This command was introduced. |
Use the show lacp command to troubleshoot problems related to LACP in a network.
This example shows how to display the LACP system identification:
switch# show lacp system-identifier 32768,0-5-9b-78-6e-7c switch#
This example shows how to display the LACP information for a specific interface:
switch# show lacp interface ethernet 1/1 Interface Ethernet1/1 is up Channel group is 1 port channel is Po1 PDUs sent: 1684 PDUs rcvd: 1651 Markers sent: 0 Markers rcvd: 0 Marker response sent: 0 Marker response rcvd: 0 Unknown packets rcvd: 0 Illegal packets rcvd: 0 Lag Id: [ [(8000, 0-5-9b-78-6e-7c, 0, 8000, 101), (8000, 0-d-ec-c9-c8-3c, 0, 800 0, 101)] ] Operational as aggregated link since Wed Apr 21 00:37:27 2010 Local Port: Eth1/1 MAC Address= 0-5-9b-78-6e-7c System Identifier=0x8000,0-5-9b-78-6e-7c Port Identifier=0x8000,0x101 Operational key=0 LACP_Activity=active LACP_Timeout=Long Timeout (30s) Synchronization=IN_SYNC Collecting=true Distributing=true Partner information refresh timeout=Long Timeout (90s) Actor Admin State=(Ac-1:To-1:Ag-1:Sy-0:Co-0:Di-0:De-0:Ex-0) Actor Oper State=(Ac-1:To-0:Ag-1:Sy-1:Co-1:Di-1:De-0:Ex-0) Neighbor: 1/1 MAC Address= 0-d-ec-c9-c8-3c System Identifier=0x8000,0-d-ec-c9-c8-3c Port Identifier=0x8000,0x101 Operational key=0 LACP_Activity=active LACP_Timeout=Long Timeout (30s) Synchronization=IN_SYNC Collecting=true Distributing=true Partner Admin State=(Ac-0:To-1:Ag-0:Sy-0:Co-0:Di-0:De-0:Ex-0) Partner Oper State=(Ac-1:To-0:Ag-1:Sy-1:Co-1:Di-1:De-0:Ex-0) switch#
Command |
Description |
---|---|
clear lacp counters |
Clears LACP counters. |
lacp port-priority |
Sets the priority for the physical interfaces for the LACP. |
lacp system-priority |
Sets the system priority of the switch for the LACP. |
To display the total number of EtherChannel interfaces and the number of free or used EtherChannel interfaces, use the show port-channel capacity command.
show port-channel capacity
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the EtherChannel capacity:
switch# show port-channel capacity Port-channel resources 768 total 29 used 739 free 3% used switch#
Command |
Description |
---|---|
port-channel load-balance ethernet |
Configures the load-balancing algorithm for EtherChannels. |
show tech-support port-channel |
Displays Cisco Technical Support information about EtherChannels. |
To display the parameters that must be the same among the member ports in order to join an EtherChannel interface, use the show port-channel compatibility-parameters command.
show port-channel compatibility-parameters
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the EtherChannel interface parameters:
switch# show port-channel compatibility-parameters * port mode Members must have the same port mode configured. * port mode Members must have the same port mode configured, either E,F or AUTO. If they are configured in AUTO port mode, they have to negotiate E or F mode when they come up. If a member negotiates a different mode, it will be suspended. * speed Members must have the same speed configured. If they are configured in AUTO speed, they have to negotiate the same speed when they come up. If a member negotiates a different speed, it will be suspended. * MTU Members have to have the same MTU configured. This only applies to ethernet port-channel. * shut lan Members have to have the same shut lan configured. This only applies to ethernet port-channel. * MEDIUM Members have to have the same medium type configured. This only applies to ethernet port-channel. * Span mode Members must have the same span mode. * load interval Member must have same load interval configured. --More-- <---output truncated---> switch#
Command |
Description |
---|---|
port-channel load-balance ethernet |
Configures the load-balancing algorithm for EtherChannels. |
show tech-support port-channel |
Displays Cisco Technical Support information about EtherChannels. |
To display the aggregation state for one or more EtherChannel interfaces, use the show port-channel database command.
show port-channel database [ interface port-channel number [ . subinterface-number ] ]
interface |
(Optional) Displays information for an EtherChannel interface. |
port-channel number |
(Optional) Displays aggregation information for a specific EtherChannel interface. The number range is from 1 to 4096. |
.subinterface-number |
(Optional) Subinterface number. Use the EtherChannel number followed by a dot (.) indicator and the subinterface number. The format is portchannel-number.subinterface-number. |
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the aggregation state of all EtherChannel interfaces:
switch# show port-channel database port-channel19 Last membership update is successful 4 ports in total, 4 ports up First operational port is Ethernet199/1/24 Age of the port-channel is 0d:09h:11m:30s Time since last bundle is 0d:09h:12m:20s Last bundled member is Ports: Ethernet199/1/24 [active ] [up] * Ethernet199/1/28 [active ] [up] Ethernet199/1/30 [active ] [up] Ethernet199/1/31 [active ] [up] port-channel21 Last membership update is successful 1 ports in total, 1 ports up First operational port is Ethernet2/3 Age of the port-channel is 0d:09h:11m:30s Time since last bundle is 0d:09h:12m:20s Last bundled member is Ports: Ethernet2/3 [on] [up] * port-channel50 Last membership update is successful --More-- <---output truncated---> switch#
This example shows how to display the aggregation state for a specific EtherChannel interface:
switch# show port-channel database interface port-channel 21 port-channel21 Last membership update is successful 1 ports in total, 1 ports up First operational port is Ethernet2/3 Age of the port-channel is 0d:09h:13m:14s Time since last bundle is 0d:09h:14m:04s Last bundled member is Ports: Ethernet2/3 [on] [up] * switch#
Command |
Description |
---|---|
port-channel load-balance ethernet |
Configures the load-balancing algorithm for EtherChannels. |
show tech-support port-channel |
Displays Cisco Technical Support information about EtherChannels. |
To display information about EtherChannel load balancing, use the show port-channel load-balance command.
show port-channel load-balance [ forwarding-path interface port-channel number { . | vlan vlan_ID } [ dst-ip ipv4-addr ] [ dst-ipv6 ipv6-addr ] [ dst-mac dst-mac-addr ] [ l4-dst-port dst-port ] [ l4-src-port src-port ] [ src-ip ipv4-addr ] [ src-ipv6 ipv6-addr ] [ src-mac src-mac-addr ] ]
forwarding-path interface port-channel |
(Optional) Identifies the port in the EtherChannel interface that forwards the packet. |
number |
EtherChannel number for the load-balancing forwarding path that you want to display. The range is from 1 to 4096. |
. |
(Optional) Subinterface number separator. Use the EtherChannel number followed by a dot (.) indicator and the subinterface number. The format is portchannel-number .subinterface-number . |
vlan |
(Optional) Identifies the VLAN for hardware hashing. |
vlan_ID |
VLAN ID. The range is from 1 to 3967 and 4048 to 4093. |
dst-ip |
(Optional) Displays the load distribution on the destination IP address. |
ipv4-addr |
IPv4 address to specify a source or destination IP address. The format is A .B .C .D . |
dst-ipv6 |
(Optional) Displays the load distribution on the destination IPv6 address. |
ipv6-addr |
IPv6 address to specify a source or destination IP address. The format is A :B ::C :D . |
dst-mac |
(Optional) Displays the load distribution on the destination MAC address. |
dst-mac-addr |
Destination MAC address. The format is AAAA :BBBB :CCCC . |
l4-dst-port |
(Optional) Displays the load distribution on the destination port. |
dst-port |
Destination port number. The range is from 0 to 65535. |
l4-src-port |
(Optional) Displays the load distribution on the source port. |
src-port |
Source port number. The range is from 0 to 65535. |
src-ip |
(Optional) Displays the load distribution on the source IP address. |
src-ipv6 |
(Optional) Displays the load distribution on the source IPv6 address. |
src-mac |
(Optional) Displays the load distribution on the source MAC address. |
src-mac-addr |
source MAC address. The format is AA :BB :CC :DD :EE :FF . |
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
You must use the vlan keyword to determine the use of hardware hashing.
When you do not use hardware hashing, the output displays all parameters used to determine the outgoing port ID. Missing parameters are shown as zero values in the output.
If you do not use hardware hashing, the outgoing port ID is determined by using control-plane selection. Hardware hashing is not used in the following scenarios:
To get accurate results, you must do the following:
This example shows how to display the port channel load-balancing information:
switch# show port-channel load-balance Port Channel Load-Balancing Configuration: System: source-dest-ip Port Channel Load-Balancing Addresses Used Per-Protocol: Non-IP: source-dest-mac IP: source-dest-ip source-dest-mac switch#
The following describes the fields shown in the display.
Field |
Description |
---|---|
System |
The load-balancing method configured on the switch. |
Non-IP |
The field that will be used to calculate the hash value for non-IP traffic. |
IP |
The fields used for IPv4 and IPv6 traffic. |
This example shows how to display the port channel load-balancing information when hardware hashing is not used:
switch# show port-channel load-balance forwarding-path interface port-channel 5 vlan 3 dst-ip 192.168.2.37 Missing params will be substituted by 0's. Load-balance Algorithm on FEX: source-dest-ip crc8_hash: Not Used Outgoing port id: Ethernet133/1/3 Param(s) used to calculate load-balance (Unknown unicast, multicast and broadcas t packets): dst-mac: 0000.0000.0000 vlan id: 3 switch#
This example shows how to display the port channel load-balancing information when hardware hashing is not used to determine the outgoing port ID:
switch# show port-channel load-balance forwarding-path interface port-channel 10 vlan 1 dst-ip 192.168.2.25 src-ip 192.168.2.10 dst-mac ffff.ffff.ffff src-mac aa:bb:cc:dd:ee:ff l4-src-port 0 l4-dst-port 1 Missing params will be substituted by 0's. Load-balance Algorithm on switch: source-dest-port crc8_hash: Not Used Outgoing port id: Ethernet1/1 Param(s) used to calculate load-balance (Unknown unicast, multicast and broadcast packets): dst-mac: ffff.ffff.ffff vlan id: 1 switch#
This example shows how to display the port channel load-balancing information when MCT is enabled and traffic flows from a vPC peer link:
switch# show port-channel load-balance forwarding-path interface port-channel 10 vlan 1 dst-ip 192.168.2.25 src-ip 192.168.2.10 dst-mac ffff.ffff.ffff src-mac aa:bb:cc:dd:ee:ff l4-src-port 0 l4-dst-port 1 Missing params will be substituted by 0's. Load-balance Algorithm on switch: source-dest-port crc8_hash: Not Used Outgoing port id (non vPC peer-link traffic): ethernet1/2 crc8_hash: Not Used Outgoing port id (vPC peer-link traffic): Ethernet1/1 Param(s) used to calculate load-balance (Unknown unicast, multicast and broadcast packets): dst-mac: ffff.ffff.ffff vlan id: 1 switch#
This example shows how to display the port channel load-balancing information when hardware hashing is used to determine the outgoing port ID:
switch# show port-channel load-balance forwarding-path interface port-channel 10 vlan 1 dst-ip 192.168.2.25 src-ip 192.168.2.10 src-mac aa:bb:cc:dd:ee:ff l4-src-port 0 l4-dst-port 1 Missing params will be substituted by 0's. Load-balance Algorithm on switch: source-dest-port crc8_hash: 204 Outgoing port id: Ethernet1/1 Param(s) used to calculate load-balance: dst-port: 1 src-port: 0 dst-ip: 192.168.2.25 src-ip: 192.168.2.10 dst-mac: 0000.0000.0000 src-mac: aabb.ccdd.eeff switch#
Command |
Description |
---|---|
port-channel load-balance ethernet |
Configures the load-balancing method among the interfaces in the channel-group bundle. |
To display summary information about EtherChannels, use the show port-channel summary command.
show port-channel summary
This command has no arguments or keywords.
None
Global configuration mode
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
Before you use this command, you must configure an EtherChannel group using the interface port-channel command.
This example shows how to display summary information about EtherChannels:
switch# show port-channel summary Flags: D - Down P - Up in port-channel (members) I - Individual H - Hot-standby (LACP only) s - Suspended r - Module-removed S - Switched R - Routed U - Up (port-channel) -------------------------------------------------------------------------------- Group Port- Type Protocol Member Ports Channel -------------------------------------------------------------------------------- 1 Po1(SU) Eth LACP Eth1/1(P) Eth1/2(P) Eth1/3(P) Eth1/4(P) Eth1/21(P) Eth1/22(P) Eth1/23(P) Eth1/24(P) Eth1/25(P) Eth1/26(P) Eth1/27(P) Eth1/28(P) Eth1/29(P) Eth1/30(P) Eth1/31(P) Eth1/32(P) 3 Po3(SU) Eth NONE Eth1/9(P) Eth1/10(P) Eth1/13(P) Eth1/14(P) Eth1/40(P) 5 Po5(SU) Eth NONE Eth3/5(P) Eth3/6(P) 6 Po6(SU) Eth NONE Eth1/5(P) Eth1/6(P) Eth1/7(P) Eth1/8(P) 12 Po12(SU) Eth NONE Eth3/3(P) Eth3/4(P) 15 Po15(SD) Eth NONE -- 20 Po20(SU) Eth NONE Eth1/17(P) Eth1/18(P) Eth1/19(D) Eth1/20(P) 24 Po24(SU) Eth LACP Eth105/1/27(P) Eth105/1/28(P) Eth105/1/29 (P) Eth105/1/30(P) Eth105/1/31(P) Eth105/1/32 (P) 25 Po25(SU) Eth LACP Eth105/1/23(P) Eth105/1/24(P) Eth105/1/25 (P) Eth105/1/26(P) 33 Po33(SD) Eth NONE -- 41 Po41(SD) Eth NONE -- 44 Po44(SD) Eth NONE -- 48 Po48(SD) Eth NONE -- 100 Po100(SD) Eth NONE -- 101 Po101(SD) Eth NONE -- 102 Po102(SU) Eth LACP Eth102/1/2(P) 103 Po103(SU) Eth LACP Eth102/1/3(P) 104 Po104(SU) Eth LACP Eth102/1/4(P) 105 Po105(SU) Eth LACP Eth102/1/5(P) 106 Po106(SU) Eth LACP Eth102/1/6(P) 107 Po107(SU) Eth LACP Eth102/1/7(P) 108 Po108(SU) Eth LACP Eth102/1/8(P) 109 Po109(SU) Eth LACP Eth102/1/9(P) 110 Po110(SU) Eth LACP Eth102/1/10(P) 111 Po111(SU) Eth LACP Eth102/1/11(P) <---output truncated---> switch#
Command |
Description |
---|---|
channel-group (Ethernet) |
Assigns and configures a physical interface to an EtherChannel. |
interface port-channel |
Creates an EtherChannel interface and enters interface configuration mode. |
To display the traffic statistics for EtherChannels, use the show port-channel traffic command.
show port-channel traffic [ interface port-channel number [ . subinterface-number ] ]
interface |
(Optional) Displays traffic statistics for a specified interface. |
port-channel number |
(Optional) Displays information for a specified EtherChannel. The range is from 1 to 4096. |
.subinterface-number |
(Optional) Subinterface number. Use the EtherChannel number followed by a dot (.) indicator and the subinterface number. The format is portchannel-number.subinterface-number. |
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the traffic statistics for all EtherChannels:
switch# show port-channel traffic ChanId Port Rx-Ucst Tx-Ucst Rx-Mcst Tx-Mcst Rx-Bcst Tx-Bcst ------ --------- ------- ------- ------- ------- ------- ------- 10 Eth1/7 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 10 Eth1/8 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 10 Eth1/9 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 10 Eth1/10 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% ------ --------- ------- ------- ------- ------- ------- ------- 4000 Eth1/1 0.0% 0.0% 99.64% 99.81% 0.0% 0.0% 4000 Eth1/2 0.0% 0.0% 0.06% 0.06% 0.0% 0.0% 4000 Eth1/3 0.0% 0.0% 0.23% 0.06% 0.0% 0.0% 4000 Eth1/4 0.0% 0.0% 0.06% 0.06% 0.0% 0.0% switch#
This example shows how to display the traffic statistics for a specific EtherChannel:
switch# show port-channel traffic interface port-channel 10 ChanId Port Rx-Ucst Tx-Ucst Rx-Mcst Tx-Mcst Rx-Bcst Tx-Bcst ------ --------- ------- ------- ------- ------- ------- ------- 10 Eth1/7 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 10 Eth1/8 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 10 Eth1/9 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 10 Eth1/10 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% switch#
Command |
Description |
---|---|
port-channel load-balance ethernet |
Configures the load-balancing algorithm for EtherChannels. |
show tech-support port-channel |
Displays Cisco Technical Support information about EtherChannels. |
To display the range of used and unused EtherChannel numbers, use the show port-channel usage command.
show port-channel usage
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the EtherChannel usage information:
switch# show port-channel usage Total 29 port-channel numbers used ============================================ Used : 19 , 21 , 50 , 100 , 150 , 170 - 171 , 198 - 199 , 256 301 , 400 - 401 , 1032 - 1033 , 1111 , 1504 , 1511 , 1514 , 1516 - 1520 1532 , 1548 , 1723 , 1905 , 1912 Unused: 1 - 18 , 20 , 22 - 49 , 51 - 99 , 101 - 149 , 151 - 169 172 - 197 , 200 - 255 , 257 - 300 , 302 - 399 , 402 - 1031 1034 - 1110 , 1112 - 1503 , 1505 - 1510 , 1512 - 1513 , 1515 , 1521 - 1531 1533 - 1547 , 1549 - 1722 , 1724 - 1904 , 1906 - 1911 , 1913 - 4096 (some numbers may be in use by SAN port channels) switch#
Command |
Description |
---|---|
port-channel load-balance ethernet |
Configures the load-balancing algorithm for EtherChannels. |
show tech-support port-channel |
Displays Cisco Technical Support information about EtherChannels. |
To display the port security configuration on an interface, use the show port-security command.
show port-security [ address [ interface { ethernet slot / [ QSFP-module / ] port | port-channel channel-num } ] | interface { ethernet slot / [ QSFP-module / ] port | port-channel channel-num } | state ]
address |
(Optional) Displays the secure MAC address of a port. |
interface |
(Optional) Displays the secure address for an interface. |
ethernet slot / port |
(Optional) Displays the secure address for an Ethernet interface. The slot number is from 1 to 255 and the port number is from 1 to 128. |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
port-channel channel-num |
(Optional) Displays the secure address for an EtherChannel interface. The channel number is from 1 to 4096. |
state |
(Optional) Displays whether a port is secure. |
None
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.1(3)N1(1) |
This command was introduced. |
This command does not require a license.
This example shows how to display the port security configuration on an interface:
switch# show port-security Total Secured Mac Addresses in System (excluding one mac per port) : 0 Max Addresses limit in System (excluding one mac per port) : 8192 ---------------------------------------------------------------------------- Secure Port MaxSecureAddr CurrentAddr SecurityViolation Security Action (Count) (Count) (Count) ---------------------------------------------------------------------------- Ethernet1/5 10 0 0 Shutdown ============================================================================ switch#
Command |
Description |
---|---|
clear port-security dynamic |
Clears the dynamically secured addresses on a port. |
show running-config port-security |
Displays the port security configuration information. |
switchport port-security |
Configures the switchport parameters to establish port security. |
To display the power status for the specified Power over Ethernet (PoE) port or for all PoE ports on the switch, use the show power inline command.
show power inline [ consumption | ethernet slot /port | fex | police | priority ]
consumption |
(Optional) Displays the per-port power consumption. |
ethernet slot /port |
(Optional) Displays the per-port usage on an Ethernet IEEE 802.3z interface. The slot number is from 1 to 255 and the port number is from 1 to 128. |
fex |
(Optional) Displays the per-port usage on a particular Fabric Extender (FEX). |
police |
(Optional) Displays the per-port policing. |
priority |
(Optional) Displays the per-port priority. |
All PoE parameters
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the PoE port parameters:
switch# show power inline
This example shows how to display the per-port power consumption:
switch# show power inline consumption
This example shows how to display the per-port priority:
switch# show power inline port priority
This example shows how to display the per-port power consumed on an interface:
switch# show power inline ethernet 1/1
Command |
Description |
---|---|
power inline |
Enables PoE ports on a switch. |
power inline consumption |
Configures the power consumption by a PoE port. |
power inline consumption default |
Configures the power to be consumed globally by all PoE ports. |
power inline police action |
Configures the PoE port action to be taken when power allocation is exceeded. |
power inline port priority |
Configures the PoE port priority. |
show running-config poe |
Displays the running configuration information about PoE ports. |
To display the number of resources currently available in the system, use the show resource command.
show resource [resource]
resource |
Resource name, which can be one of the following: |
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the resources available in the system:
switch# show resource Resource Min Max Used Unused Avail ----------- ----- ----- ------ -------- ------- vlan 16 4094 509 0 3 monitor-session 0 2 0 0 2 vrf 2 1000 2 0 998 port-channel 0 768 2 0 766 u4route-mem 32 32 1 31 31 u6route-mem 16 16 1 15 15 m4route-mem 58 58 0 58 58 m6route-mem 8 8 0 8 8 bundle-map 0 16 2 0 14
Command |
Description |
---|---|
show interface port-channel |
Displays information about EtherChannels. |
To display the contents of the currently running configuration file, use the show running-config command.
show running-config [all]
all |
(Optional) Displays the full operating information including default settings. |
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display information on the running configuration:
switch# show running-config
This example shows how to display detailed information on the running configuration:
switch# show running-config all
Command |
Description |
---|---|
show startup-config |
Displays the contents of the startup configuration file. |
To display the running configuration for backup interfaces, use the show running-config backup command.
show running-config backup [all]
all |
(Optional) Displays backup interface information including default settings. |
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the running configuration for backup interfaces:
switch# show running-config backup !Command: show running-config backup !Time: Sun Jan 4 06:27:36 2009 version 5.0(3)N2(1) feature flexlink logging level Flexlink 5 interface port-channel300 switchport backup interface port-channel301 preemption mode forced switchport backup interface port-channel301 multicast fast-convergence interface port-channel500 switchport backup interface port-channel501 preemption delay 36 switchport backup interface port-channel501 multicast fast-convergence interface port-channel502 switchport backup interface port-channel503 interface port-channel504 switchport backup interface Ethernet2/1 interface Ethernet1/2 switchport backup interface Ethernet1/1 interface Ethernet1/20 switchport backup interface Ethernet1/21 interface Ethernet2/2 switchport backup interface port-channel507 preemption mode forced switch#
This example shows how to display the detailed running configuration for backup interfaces:
switch# show running-config backup all !Command: show running-config backup all !Time: Sun Jan 4 06:28:04 2009 version 5.0(3)N2(1) feature flexlink logging level Flexlink 5 interface port-channel300 switchport backup interface port-channel301 preemption mode forced switchport backup interface port-channel301 preemption delay 35 switchport backup interface port-channel301 multicast fast-convergence interface port-channel500 switchport backup interface port-channel501 preemption mode off switchport backup interface port-channel501 preemption delay 36 switchport backup interface port-channel501 multicast fast-convergence interface port-channel502 switchport backup interface port-channel503 preemption mode off switchport backup interface port-channel503 preemption delay 35 interface port-channel504 switchport backup interface Ethernet2/1 preemption mode off switchport backup interface Ethernet2/1 preemption delay 35 interface Ethernet1/2 switchport backup interface Ethernet1/1 preemption mode off switchport backup interface Ethernet1/1 preemption delay 35 interface Ethernet1/20 switchport backup interface Ethernet1/21 preemption mode off switchport backup interface Ethernet1/21 preemption delay 35 interface Ethernet2/2 switchport backup interface port-channel507 preemption mode forced switchport backup interface port-channel507 preemption delay 35 switch#
Command |
Description |
---|---|
show running-config flexlink |
Displays the Flex Links running configuration. |
show startup-config backup |
Displays the startup configuration for backup interfaces. |
show startup-config flexlink |
Displays the startup configuration for Flex Links. |
show tech-support backup |
Displays troubleshooting information for backup interfaces. |
show tech-support flexlink |
Displays troubleshooting information for Flex Links. |
To display the running configuration for a specific port channel, use the show running-config interface command.
show running-config interface [ ethernet slot / [ QSFP-module / ] port | fc slot / [ QSFP-module / ] port | loopback number | mgmt 0 | port-channel channel-number [membership] | vethernet veth-id | vlan vlan-id ] [ all | expand-port-profile ]
ethernet slot /port |
(Optional) Displays the Ethernet interface slot number and port number. The slot number is from 1 to 255 and the port number is from 1 to 128. |
fc slot /port |
(Optional) Displays the configuration information of the Fibre Channel interface. The slot number is from 1 to 2 and the port number is from 1 to 48. |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
loopback number |
(Optional) Displays the number of the loopback interface. The range of values is from 1 to 4096. |
mgmt 0 |
(Optional) Displays the configuration information of the management interface. |
port-channel channel-number |
(Optional) Displays the number of the port-channel group. The range of values is from 0 to 1023. |
membership |
Displays the membership of the specified port channel. |
tunnel number |
Displays the number of the tunnel interface. The range of values is from 0 to 65535. |
vethernet veth-id |
(Optional) Displays the configuration information of the virtual Ethernet interface. The range is from 1 to 1048575. |
vlan vlan-id |
(Optional) Displays the configuration information of the VLAN. The range of values is from 1 to 4096. |
all |
(Optional) Displays configured and default information . |
expand-port-profile |
(Optional) Displays the configuration information of port profiles. |
None
Any command mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display the running configuration for port channel 10:
switch(config)# show running-config interface port-channel 10 version 5.0(1) interface port-channel10 switchport switchport mode trunk switch(config)#
This example shows how to display the running configuration for a virtual Ethernet interface:
switch# show running-config interface vethernet 10 !Command: show running-config interface Vethernet10 !Time: Fri Jan 2 01:40:37 2009 version 5.1(3)N1(1) interface Vethernet10 inherit port-profile ppVEth untagged cos 3 switchport access vlan 101 bind interface Ethernet1/5 channel 10 switch#
This example shows how to display the running configuration for VLAN 5 that has been configured as an SVI to be used for in-band management:
switch# show running-config interface vlan 5 !Command: show running-config interface Vlan5 !Time: Mon Apr 4 07:46:35 2005 version 5.1(3)N1(1) interface Vlan5 management switch#
Command |
Description |
---|---|
show startup-config |
Displays the running configuration on the device. |
To display the running configuration for Power over Ethernet (PoE) ports, use the show running-config poe command.
show running-config poe [all]
all |
(Optional) Displays detailed information about PoE ports, including default settings. |
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the running configuration for PoE ports:
switch# show running-config poe
Command |
Description |
---|---|
show startup-config poe |
Displays the startup configuration information about PoE ports. |
show tech-support poe |
Displays troubleshooting information about PoE ports. |
To display the contents of the currently running configuration file, use the show startup-config command.
show startup-config
This command has no arguments or keywords.
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display information from the startup configuration file:
switch# show startup-config
Command |
Description |
---|---|
show running-config |
Displays the contents of the currently running configuration file. |
To display the startup configuration for backup interfaces, use the show startup-config backup command.
show startup-config backup [all]
all |
(Optional) Displays backup interface information including default settings. |
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the startup configuration for backup interfaces:
switch# show startup-config backup !Command: show startup-config backup !Time: Sun Jan 4 06:28:43 2009 !Startup config saved at: Thu Jan 1 03:40:28 2009 version 5.0(3)N2(1) feature flexlink logging level Flexlink 5 interface port-channel300 switchport backup interface port-channel301 preemption mode forced interface port-channel500 switchport backup interface port-channel501 preemption delay 36 switchport backup interface port-channel501 multicast fast-convergence interface port-channel502 switchport backup interface port-channel503 interface port-channel504 switchport backup interface Ethernet2/1 interface Ethernet1/2 switchport backup interface Ethernet1/1 interface Ethernet1/20 switchport backup interface Ethernet1/21 interface Ethernet2/2 switchport backup interface port-channel507 preemption mode forced switch#
This example shows how to display the detailed startup configuration for backup interfaces:
switch# show startup-config backup all !Command: show startup-config backup all !Time: Sun Jan 4 06:29:17 2009 !Startup config saved at: Thu Jan 1 03:40:28 2009 version 5.0(3)N2(1) feature flexlink logging level Flexlink 5 interface port-channel300 switchport backup interface port-channel301 preemption mode forced switchport backup interface port-channel301 preemption delay 35 interface port-channel500 switchport backup interface port-channel501 preemption mode off switchport backup interface port-channel501 preemption delay 36 switchport backup interface port-channel501 multicast fast-convergence interface port-channel502 switchport backup interface port-channel503 preemption mode off switchport backup interface port-channel503 preemption delay 35 interface port-channel504 switchport backup interface Ethernet2/1 preemption mode off switchport backup interface Ethernet2/1 preemption delay 35 interface Ethernet1/2 switchport backup interface Ethernet1/1 preemption mode off switchport backup interface Ethernet1/1 preemption delay 35 interface Ethernet1/20 switchport backup interface Ethernet1/21 preemption mode off switchport backup interface Ethernet1/21 preemption delay 35 interface Ethernet2/2 switchport backup interface port-channel507 preemption mode forced switchport backup interface port-channel507 preemption delay 35 switch#
Command |
Description |
---|---|
copy running-config startup-config |
Copies the running configuration information to the startup configuration file. |
show running-config backup |
Displays the running configuration information for backup interfaces. |
show running-config flexlink |
Displays Flex Links running configuration information. |
show tech-support backup |
Displays troubleshooting information for backup interfaces. |
show tech-support flexlink |
Displays troubleshooting information for Flex Links. |
To display troubleshooting information about backup interfaces or Flex Links, use the show tech-support command.
show tech-support { backup | flexlink }
backup |
Displays troubleshooting information about backup interfaces. |
flexlink |
Displays troubleshooting information about Flex Links. |
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the troubleshooting information about backup interfaces:
switch# show tech-support backup `show interface switchport backup detail` Switch Backup Interface Pairs: Active Interface Backup Interface State ------------------------------------------------------------------------ Ethernet1/2 Ethernet1/1 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 1000000 Kbit (Ethernet1/2), 10000000 Kbit (Ethernet1/1) Ethernet1/20 Ethernet1/21 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 10000000 Kbit (Ethernet1/20), 10000000 Kbit (Ethernet1/21) port-channel300 port-channel301 Active Up/Backup Down Preemption Mode : forced Preemption Delay : 35 seconds (default) Multicast Fast Convergence : On Bandwidth : 20000000 Kbit (port-channel300), 10000000 Kbit (port-channel 301) port-channel500 port-channel501 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : On Bandwidth : 100000 Kbit (port-channel500), 100000 Kbit (port-channel501) port-channel502 port-channel503 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 100000 Kbit (port-channel502), 100000 Kbit (port-channel503) port-channel504 Ethernet2/1 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 100000 Kbit (port-channel504), 0 Kbit (Ethernet2/1) `show platform backup internal trace` FLEXLINK Trace Dump in FIFO order ================================ Trace Buffer Size: 5 MB; Num of times buffer wrapped 0; Max Rec-Size 156; Rec_id for next Msg 6219 =========================================================================== ::0::[Thu Jan 1 00:01:21 2009 594649 usecs] flexlink_db_initialize: timer libra ry initialization successful ::1::[Thu Jan 1 00:01:21 2009 594702 usecs] flexlink_db_initialize: starting VD C 1 ::2::[Thu Jan 1 00:01:21 2009 594752 usecs] flexlink_initialize: flexlink_db_in itialize done ::3::[Thu Jan 1 00:01:21 2009 594946 usecs] flexlink_mts_queue_initialize: mts bind for flexlink_q_mts(7) successful ::4::[Thu Jan 1 00:01:21 2009 595015 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_SDWRAP_DEBUG_DUMP(1530) with flexlink_q_mts ::5::[Thu Jan 1 00:01:21 2009 595064 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_SYSLOG_FACILITY_OPR(185) with flexlink_q_mts ::6::[Thu Jan 1 00:01:21 2009 595113 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_SYSMGR_CFG_ACTION(1360) with flexlink_q_mts ::7::[Thu Jan 1 00:01:21 2009 595161 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_SYSMGR_CFG_SAVED(1361) with flexlink_q_mts ::8::[Thu Jan 1 00:01:21 2009 595209 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_VSH_CMD_TLV(7679) with flexlink_q_mts ::9::[Thu Jan 1 00:01:21 2009 595257 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_VSH_CMD_TLV_SYNC(7682) with flexlink_q_mts ::10::[Thu Jan 1 00:01:21 2009 595304 usecs] flexlink_mts_queue_initialize: reg istered MTS_OPC_FM_SRV_ENABLE_FEATURE(8925) with flexlink_q_mts ::11::[Thu Jan 1 00:01:21 2009 595351 usecs] flexlink_mts_queue_initialize: reg istered MTS_OPC_FM_SRV_DISABLE_FEATURE(8926) with flexlink_q_mts ::12::[Thu Jan 1 00:01:21 2009 595400 usecs] flexlink_mts_queue_initialize: reg istered MTS_OPC_IM_IF_CREATED(62467) with flexlink_q_mts ::13::[Thu Jan 1 00:01:21 2009 595448 usecs] flexlink_mts_queue_initialize: reg istered MTS_OPC_IM_IF_REMOVED(62468) with flexlink_q_mts ::14::[Thu Jan 1 00:01:21 2009 595495 usecs] flexlink_mts_queue_initialize: reg <--Output truncated--> switch#
This example shows how to display the troubleshooting information for Flex Links:
switch# show tech-support flexlink `show interface switchport backup detail` Switch Backup Interface Pairs: Active Interface Backup Interface State ------------------------------------------------------------------------ Ethernet1/2 Ethernet1/1 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 1000000 Kbit (Ethernet1/2), 10000000 Kbit (Ethernet1/1) Ethernet1/20 Ethernet1/21 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 10000000 Kbit (Ethernet1/20), 10000000 Kbit (Ethernet1/21) port-channel300 port-channel301 Active Up/Backup Down Preemption Mode : forced Preemption Delay : 35 seconds (default) Multicast Fast Convergence : On Bandwidth : 20000000 Kbit (port-channel300), 10000000 Kbit (port-channel 301) port-channel500 port-channel501 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : On Bandwidth : 100000 Kbit (port-channel500), 100000 Kbit (port-channel501) port-channel502 port-channel503 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 100000 Kbit (port-channel502), 100000 Kbit (port-channel503) port-channel504 Ethernet2/1 Active Down/Backup Down Preemption Mode : off Multicast Fast Convergence : Off Bandwidth : 100000 Kbit (port-channel504), 0 Kbit (Ethernet2/1) `show platform backup internal trace` FLEXLINK Trace Dump in FIFO order ================================ Trace Buffer Size: 5 MB; Num of times buffer wrapped 0; Max Rec-Size 156; Rec_id for next Msg 6225 =========================================================================== ::0::[Thu Jan 1 00:01:21 2009 594649 usecs] flexlink_db_initialize: timer libra ry initialization successful ::1::[Thu Jan 1 00:01:21 2009 594702 usecs] flexlink_db_initialize: starting VD C 1 ::2::[Thu Jan 1 00:01:21 2009 594752 usecs] flexlink_initialize: flexlink_db_in itialize done ::3::[Thu Jan 1 00:01:21 2009 594946 usecs] flexlink_mts_queue_initialize: mts bind for flexlink_q_mts(7) successful ::4::[Thu Jan 1 00:01:21 2009 595015 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_SDWRAP_DEBUG_DUMP(1530) with flexlink_q_mts ::5::[Thu Jan 1 00:01:21 2009 595064 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_SYSLOG_FACILITY_OPR(185) with flexlink_q_mts ::6::[Thu Jan 1 00:01:21 2009 595113 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_SYSMGR_CFG_ACTION(1360) with flexlink_q_mts ::7::[Thu Jan 1 00:01:21 2009 595161 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_SYSMGR_CFG_SAVED(1361) with flexlink_q_mts ::8::[Thu Jan 1 00:01:21 2009 595209 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_VSH_CMD_TLV(7679) with flexlink_q_mts ::9::[Thu Jan 1 00:01:21 2009 595257 usecs] flexlink_mts_queue_initialize: regi stered MTS_OPC_VSH_CMD_TLV_SYNC(7682) with flexlink_q_mts ::10::[Thu Jan 1 00:01:21 2009 595304 usecs] flexlink_mts_queue_initialize: reg istered MTS_OPC_FM_SRV_ENABLE_FEATURE(8925) with flexlink_q_mts ::11::[Thu Jan 1 00:01:21 2009 595351 usecs] flexlink_mts_queue_initialize: reg istered MTS_OPC_FM_SRV_DISABLE_FEATURE(8926) with flexlink_q_mts ::12::[Thu Jan 1 00:01:21 2009 595400 usecs] flexlink_mts_queue_initialize: reg istered MTS_OPC_IM_IF_CREATED(62467) with flexlink_q_mts <--Output truncated--> switch#
Command |
Description |
---|---|
show running-config backup |
Displays the running configuration information for backup interfaces. |
show running-config flexlink |
Displays Flex Links running configuration information. |
To display the troubleshooting information for Power over Ethernet (PoE) ports, use the show tech-support poe command.
show tech-support poe
This command has no keywords or arguments.
None
EXEC mode
Release |
Modification |
---|---|
5.0(3)N2(1) |
This command was introduced. |
This example shows how to display the troubleshooting information for PoE ports:
switch# show tech-support poe
Command |
Description |
---|---|
power inline |
Enables PoE ports on the switch. |
show running-config poe |
Displays the running configuration information about PoE ports. |
To display troubleshooting information about EtherChannel interfaces, use the show tech-support port-channel command.
show tech-support port-channel
This command has no keywords or arguments.
None
EXEC mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
The output from the show tech-support port-channel command is very long. To better manage this output, you can redirect the output to a file.
This example shows how to display Cisco technical support information for EtherChannel interfaces:
switch# show tech-support port-channel `show port-channel internal event-history all` Low Priority Pending queue: len(0), max len(2) [Thu Jul 8 04:05:04 2010] High Priority Pending queue: len(0), max len(32) [Thu Jul 8 04:05:04 2010] PCM Control Block info: pcm_max_channels : 4096 pcm_max_channel_in_use : 1912 pc count : 29 hif-pc count : 20 Max PC Cnt : 768 ==================================================== PORT CHANNELS: port-channel19 channel : 19 bundle : 65535 ifindex : 0x16000012 admin mode : active oper mode : active fop ifindex : 0x1fc605c0 nports : 4 active : 4 pre cfg : 0 ltl: : 0 lif: : 0 iod: : 43 global id : 1 flag : 0 --More-- <---output truncated---> switch#
Command |
Description |
---|---|
port-channel load-balance ethernet |
Configures the load-balancing method among the interfaces in the channel-group bundle. |
show port-channel load-channel |
Displays information on EtherChannel load balancing. |
To display the Unidirectional Link Detection (UDLD) information for a switch, use the show udld command.
show udld [ ethernet slot / [ QSFP-module / ] port | global | neighbors ]
ethernet slot /port |
Displays UDLD information for an Ethernet IEEE 802.3z interface. The slot number is from 1 to 255, and the port number is from 1 to 128. |
QSFP-module |
(Optional) The QSFP+ port on the Generic Expansion Module (GEM). The port numbers are from 1 to 4. |
global |
Displays the UDLD global status and configuration information on all interfaces. |
neighbors |
Displays information about UDLD neighbor interfaces. |
None
EXEC mode
Release |
Modification |
---|---|
6.0(2)N1(2) |
Support for the QSFP+ GEM. |
5.2(1)N1(1) |
This command was introduced. |
This example shows how to display UDLD information for all interfaces:
switch# show udld Interface Ethernet1/1 -------------------------------- Port enable administrative configuration setting: device-default Port enable operational state: enabled Current bidirectional state: bidirectional Current operational state: advertisement - Single neighbor detected Message interval: 15 Timeout interval: 5 Entry 1 ---------------- Expiration time: 41 Cache Device index: 1 Current neighbor state: bidirectional Device ID: FLC12280095 Port ID: Ethernet1/1 Neighbor echo 1 devices: SSI130205RT Neighbor echo 1 port: Ethernet1/1 Message interval: 15 Timeout interval: 5 CDP Device name: N5Kswitch-2(FLC12280095) Interface Ethernet1/2 -------------------------------- Port enable administrative configuration setting: device-default Port enable operational state: enabled Current bidirectional state: bidirectional Current operational state: advertisement - Single neighbor detected Message interval: 15 Timeout interval: 5 Entry 1 ---------------- --More-- switch#
This example shows how to display the UDLD information for a specified interface:
switch# show udld ethernet 1/1 Interface Ethernet1/1 -------------------------------- Port enable administrative configuration setting: device-default Port enable operational state: enabled Current bidirectional state: bidirectional Current operational state: advertisement - Single neighbor detected Message interval: 15 Timeout interval: 5 Entry 1 ---------------- Expiration time: 41 Cache Device index: 1 Current neighbor state: bidirectional Device ID: FLC12280095 Port ID: Ethernet1/1 Neighbor echo 1 devices: SSI130205RT Neighbor echo 1 port: Ethernet1/1 Message interval: 15 Timeout interval: 5 CDP Device name: N5Kswitch-2(FLC12280095) switch#
This example shows how to display the UDLD global status and configuration on all interfaces:
switch# show udld global UDLD global configuration mode: enabled UDLD global message interval: 15 switch#
This example shows how to display the UDLD neighbor interfaces:
switch# show udld neighbors Port Device Name Device ID Port ID Neighbor State -------------------------------------------------------------------------- Ethernet1/1 FLC12280095 1 Ethernet1/1 bidirectional Ethernet1/2 FLC12280095 1 Ethernet1/2 bidirectional Ethernet1/3 FLC12280095 1 Ethernet1/3 bidirectional Ethernet1/4 FLC12280095 1 Ethernet1/4 bidirectional Ethernet1/7 JAF1346000H 1 Ethernet1/7 bidirectional Ethernet1/8 JAF1346000H 1 Ethernet1/8 bidirectional Ethernet1/9 JAF1346000C 1 Ethernet1/9 bidirectional Ethernet1/10 JAF1346000C 1 Ethernet1/10 bidirectional switch#
Command |
Description |
---|---|
udld (configuration mode) |
Configures the UDLD protocol on the switch. |
udld (Ethernet) |
Configures the UDLD protocol on an Ethernet interface. |
To display brief information about the virtual port channels (vPCs), use the show vpc brief command.
show vpc brief [ vpc number ]
vpc number |
(Optional) Displays the brief information for the specified vPC. The range is from 1 to 4096. |
None
Any command mode
Release |
Modification |
---|---|
5.2(1)N1(1) |
This command was introduced. |
The show vpc brief command displays the vPC domain ID, the peer-link status, the keepalive message status, whether the configuration consistency is successful, and whether the peer-link formed or failed to form.
This command is not available if you have not enabled the vPC feature. See the feature vpc command for information on enabling vPCs.
You can display the track object, if you have configured a tracked object for running vPCs on a single module under the vpc-domain configuration mode.
This command does not require a license.
This example shows how to display brief information about the vPCs:
switch(config)# show vpc brief Legend: (*) - local vpc is down, forwarding via vPC peer-link vPC domain id : 10 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status: success vPC role : primary Number of vPC configured : 1 vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po10 up 1-100 vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- -------------------------- ------------ 20 Po20 up success success 1-100
This example also shows how to display brief information about the vPCs. In this example, the port channel failed the consistency check, and the device displays the reason for the failure:
switch(config)# show vpc brief Legend: (*) - local vpc is down, forwarding via vPC peer-link vPC domain id : 10 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status: failed Configuration consistency reason: vPC type-1 configuration incompatible - STP interface port type inconsistent vPC role : secondary Number of vPC configured : 1 vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po10 up 1-100 vPC status ---------------------------------------------------------------------- id Port Status Consistency Reason Active vlans -- ---- ------ ----------- -------------------------- ------------ 20 Po20 up failed vPC type-1 configuration - incompatible - STP interface port type inconsistent
This example shows how to display information about the tracked objects in the vPCs:
switch(config)# show vpc brief Legend: (*) - local vpc is down, forwarding via vPC peer-link vPC domain id : 1 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status: success vPC role : secondary Number of vPC configured : 3 Track object : 12 vPC Peer-link status --------------------------------------------------------------------- id Port Status Active vlans -- ---- ------ -------------------------------------------------- 1 Po10 up 1-100
Command |
Description |
---|---|
feature vpc |
Enables vPCs on the device. |
show port channel summary |
Displays information about port channels. |