- show interface brief
- show interface capabilities
- show interface debounce
- show interface ethernet
- show interface port-channel
- show interface mac-address
- show interface private-vlan mapping
- show interface status err-disabled
- show interface switchport
- show interface transceiver
- show interface vlan
- show ip igmp snooping
- show lacp
- show mac address-table aging-time
- show mac address-table count
- show mac address-table notification
- show mac address-table
- show monitor session
- show port-channel capacity
- show port-channel compatibility-parameters
- show port-channel database
- show port-channel load-balance
- show port-channel summary
- show port-channel traffic
- show port-channel usage
- show resource
- show running-config
- show running-config spanning-tree
- show running-config vlan
- show spanning-tree
- show spanning-tree active
- show spanning-tree bridge
- show spanning-tree brief
- show spanning-tree detail
- show spanning-tree interface
- show spanning-tree mst
- show spanning-tree root
- show spanning-tree summary
- show spanning-tree vlan
- show startup-config
- show tech-support port-channel
- show udld
- show vlan
- show vlan dot1Q tag native
- show vlan id
- show vlan private-vlan
- show vtp status
Ethernet Show Commands
This chapter describes the Cisco NX-OS Ethernet show commands available on Cisco Nexus 5000 Series switches.
show interface brief
To display a brief summary of the interface configuration information, use the show interface brief command.
show interface brief
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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#
Related Commands
|
|
|
|---|---|
interface ethernet |
Configures an Ethernet IEEE 802.3 interface. |
show interface capabilities
To display detailed information about the capabilities of an interface, use the show interface capabilities command.
show interface ethernet slot/port capabilities
Syntax Description
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. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
You can use the show interface capabilities command only for physical interfaces.
Examples
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#
Related Commands
|
|
|
|---|---|
interface ethernet |
Configures an Ethernet IEEE 802.3 interface. |
show interface debounce
To display the debounce time information for all interfaces, use the show interface debounce command.
show interface debounce
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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#
Related Commands
|
|
|
|---|---|
link debounce |
Enables the debounce timer on an interface. |
show interface ethernet
To display information about the interface configuration, use the show interface ethernet command.
show interface ethernet slot/port [counters | description | status]
Syntax Description
Command Default
Displays all information for the interface.
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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#
Related Commands
|
|
|
|---|---|
interface ethernet |
Configures an Ethernet IEEE 802.3 interface. |
show interface port-channel
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]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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#
Related Commands
|
|
|
|---|---|
interface port-channel |
Configures an EtherChannel interface. |
show interface mac-address
To display the information about the MAC address, use the show interface mac-address command.
show interface [type slot/port | portchannel-no] mac-address
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
If you do not specify an interface, the system displays all the MAC addresses.
Examples
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#
Related Commands
show interface private-vlan mapping
To display information about private VLAN mapping for primary VLAN interfaces, use the show interface private-vlan mapping command.
show interface private-vlan mapping
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
Before you can configure private VLANs, you must enable them by using the feature private-vlan command. The commands for configuring private VLANs are not visible until you enable private VLANs.
This command displays the mapping information between the primary and secondary VLANs that allows both VLANs to share the VLAN interface of the primary VLAN.
Examples
This example shows how to display information about primary and secondary private VLAN mapping:
switch# show interface private-vlan mapping
Related Commands
show interface status err-disabled
To display the error disabled state of interfaces, use the show interface status err-disabled command.
show interface status err-disabled
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.2(1)N1(1) |
This command was introduced. |
Examples
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#
Related Commands
|
|
|
|---|---|
errdisable detect cause |
Enables the errror disabled (err-disabled) detection. |
errdisable recovery cause |
Enables errror disabled recovery on an interface. |
show interface switchport
To display information about all the switch port interfaces, use the show interface switchport command.
show interface switchport
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display information for all 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#
Related Commands
|
|
|
|---|---|
switchport access vlan |
Sets the access VLAN when the interface is in access mode. |
show interface transceiver
To display the information about the transceivers connected to a specific interface, use the show interface transceiver command.
show interface ethernet slot/port transceiver [details]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
You can use the show interface transceiver command only for physical interfaces.
Examples
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#
Related Commands
|
|
|
|---|---|
interface ethernet |
Configures an Ethernet IEEE 802.3 interface. |
show interface capabilities |
Displays detailed information about the capabilities of an interface. |
show interface vlan
To display brief descriptive information about specified VLANs, use the show interface vlan command.
show interface vlan vlan-id [brief | private-vlan mapping]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
You must enable interface VLANs by using the feature interface-vlan or the svi enable command. The commands for configuring interface VLANs are not visible until you enable this feature.
This command displays descriptive information for the specified VLAN, including private VLANs.
The switch displays output for the show interface vlan vlan-id private-vlan mapping command only when you specify a primary private VLAN. If you specify a secondary private VLAN, the output is blank.
Examples
This example shows how to display information about the specified VLAN:
switch# show interface vlan 10
Vlan10 is up, line protocol is up
Hardware is EtherSVI, address is 0005.9b78.6e7c
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
switch#
This example shows how to display a brief description for the specified VLAN:
switch# show interface vlan 10 brief
-------------------------------------------------------------------------
Interface Secondary VLAN(Type) Status Reason
-------------------------------------------------------------------------
Vlan10 -- up --
switch#
This example shows how to display the private VLAN mapping information, if any, for the VLAN:
switch# show interface vlan 10 private-vlan mapping
When you specify a primary VLAN, the switch displays all secondary VLANs mapped to that primary VLAN.
Related Commands
show ip igmp snooping
To display the Internet Group Management Protocol (IGMP) snooping configuration of the switch, use the show ip igmp snooping command.
show ip igmp snooping [explicit-tracking vlan vlan-id | groups [detail | vlan vlan-id] | mrouter [vlan vlan-id] | querier [vlan vlan-id] | vlan vlan-id]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display the IGMP snooping configuration of the switch:
switch# show ip igmp snooping
Global IGMP Snooping Information:
IGMP Snooping enabled
IGMPv1/v2 Report Suppression enabled
IGMPv3 Report Suppression disabled
Link Local Groups Suppression enabled
IGMP Snooping information for vlan 1
IGMP snooping enabled
IGMP querier none
Switch-querier disabled
IGMPv3 Explicit tracking enabled
IGMPv2 Fast leave disabled
IGMPv1/v2 Report suppression enabled
IGMPv3 Report suppression disabled
Link Local Groups suppression enabled
Router port detection using PIM Hellos, IGMP Queries
Number of router-ports: 1
Number of groups: 0
VLAN vPC function enabled
Active ports:
Po19 Po400 Eth170/1/17 Eth171/1/7
Eth171/1/8 Eth198/1/11 Eth199/1/13
IGMP Snooping information for vlan 300
IGMP snooping enabled
IGMP querier none
Switch-querier disabled
IGMPv3 Explicit tracking enabled
--More--
switch#
Related Commands
|
|
|
|---|---|
Globally enables IGMP snooping. IGMP snooping must be globally enabled in order to be enabled on a VLAN. |
|
Enables IGMP snooping on the VLAN interface. |
show lacp
To display Link Aggregation Control Protocol (LACP) information, use the show lacp command.
show lacp {counters | interface ethernet slot/port | neighbor [interface port-channel number] | port-channel [interface port-channel number] | system-identifier}
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
Use the show lacp command to troubleshoot problems related to LACP in a network.
Examples
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#
Related Commands
|
|
|
|---|---|
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. |
show mac address-table aging-time
To display information about the time-out values for the MAC address table, use the show mac address-table aging-time command.
show mac address-table aging-time [vlan vlan-id]
Syntax Description
vlan vlan-id |
(Optional) Displays information for a specific VLAN. The VLAN ID range is from 1 to 4094. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
4.2(1)N1(1) |
The command syntax is changed to show mac address-table aging-time. |
Examples
This example shows how to display MAC address aging times:
switch# show mac address-table aging-time
Vlan Aging Time
----- ----------
2023 300
2022 300
2021 300
2020 300
2019 300
2018 300
2017 300
2016 300
2015 300
2014 300
2013 300
2012 300
2011 300
2010 300
2009 300
2008 300
2007 300
2006 300
2005 300
2004 300
2003 300
--More--
switch#
Related Commands
|
|
|
|---|---|
mac address-table aging-time |
Configures the aging time for entries in the MAC address table. |
show mac address-table |
Displays information about the MAC address table. |
show mac address-table count
To display the number of entries currently in the MAC address table, use the show mac address-table count command.
show mac address-table count [address EEEE.EEEE.EEEE] [dynamic | static] [interface {ethernet slot/port | port-channel number}] [vlan vlan-id]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
4.2(1)N1(1) |
The command syntax is changed to show mac address-table count. |
Examples
This example shows how to display the number of dynamic entries currently in the MAC address table:
switch# show mac address-table count dynamic
MAC Entries for all vlans:
Total MAC Addresses in Use: 7
switch#
Related Commands
|
|
|
|---|---|
show mac address-table |
Displays information about the MAC address table. |
show mac address-table notification
To display notifications about the MAC address table, use the show mac address-table notification command.
show mac address-table notification {mac-move | threshold}
Syntax Description
mac-move |
Displays notification messages about MAC addresses that were moved. |
threshold |
Displays notification messages sent when the MAC address table threshold was exceeded. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
4.2(1)N1(1) |
The command syntax is changed to show mac address-table notification. |
Examples
This example shows how to display MAC address move notifications:
switch# show mac address-table notification mac-move
MAC Move Notify : disabled
switch#
Related Commands
|
|
|
|---|---|
show mac address-table |
Displays information about the MAC address table. |
show mac address-table
To display the information about the MAC address table, use the show mac address-table command.
show mac address-table [address mac-address] [dynamic | multicast | static] [interface {ethernet slot/port | port-channel number}] [vlan vlan-id]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
4.2(1)N1(1) |
The command syntax is changed to show mac address-table. |
Usage Guidelines
The switch maintains static MAC address entries that are saved in its startup configuration across reboots and flushes the dynamic entries.
Examples
This example shows how to display information about the entries for the MAC address table:
switch# show mac address-table
Legend:
* - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC
age - seconds since last seen,+ - primary entry using vPC Peer-Link
VLAN MAC Address Type age Secure NTFY Ports
---------+-----------------+--------+---------+------+----+------------------
+ 100 0000.0001.0003 dynamic 0 F F Po1
+ 100 0000.0001.0004 dynamic 0 F F Po1
+ 100 0000.0001.0009 dynamic 0 F F Po1
+ 100 0000.0001.0010 dynamic 0 F F Po1
* 1 001d.7172.6c40 dynamic 300 F F Eth100/1/20
switch#
This example shows how to display information about the entries for the MAC address table for a specific MAC address:
switch# show mac address-table address 0018.bad8.3fbd
This example shows how to display information about the dynamic entries for the MAC address table:
switch# show mac address-table dynamic
Legend:
* - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC
age - seconds since last seen,+ - primary entry using vPC Peer-Link
VLAN MAC Address Type age Secure NTFY Ports
---------+-----------------+--------+---------+------+----+------------------
+ 100 0000.0001.0003 dynamic 0 F F Po1
+ 100 0000.0001.0004 dynamic 0 F F Po1
+ 100 0000.0001.0009 dynamic 0 F F Po1
+ 100 0000.0001.0010 dynamic 0 F F Po1
* 1 001d.7172.6c40 dynamic 300 F F Eth100/1/20
switch#
This example shows how to display information about the MAC address table for a specific interface:
switch# show mac address-table interface ethernet 1/3
This example shows how to display static entries in the MAC address table:
switch# show mac address-table static
This example shows how to display entries in the MAC address table for a specific VLAN:
switch# show mac address-table vlan 1
Legend:
* - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC
age - seconds since last seen,+ - primary entry using vPC Peer-Link
VLAN MAC Address Type age Secure NTFY Ports
---------+-----------------+--------+---------+------+----+------------------
* 1 001d.7172.6c40 dynamic 60 F F Eth100/1/20
switch#
Related Commands
show monitor session
To display information about the Switched Port Analyzer (SPAN) sessions, use the show monitor session command.
show monitor session [session | all [brief] | range range [brief] | status]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display information about SPAN session 1:
switch# show monitor session 1
This example shows how to display a range of SPAN sessions:
switch# show monitor session range 1-4
Related Commands
|
|
|
|---|---|
monitor session |
Displays the contents of the startup configuration file. |
show port-channel capacity
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
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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#
Related Commands
show port-channel compatibility-parameters
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
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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#
Related Commands
show port-channel database
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]]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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#
Related Commands
show port-channel load-balance
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]]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
4.2(1)N1(1) |
The vlan keyword was added. |
Usage Guidelines
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:
•
The specified VLAN contains an unknown unicast destination MAC address.
•The specified VLAN contains a known or an unknown multicast destination MAC or destination IP address.
•The specified VLAN contains a broadcast MAC address.
•The EtherChannel has only one active member.
•The destination MAC address is unknown when the load distribution is configured on the source IP address (src-ip), source port (l4-src-port), or source MAC address (src-mac).
•If multichassis EtherChannel trunk (MCT) is enabled and the traffic flows from a virtual port channel (vPC) peer link, the output displays "Outgoing port id (vPC peer-link traffic)".
To get accurate results, you must do do the following:
•(For unicast frames) Provide the destination MAC address (dst-mac) and the VLAN for hardware hashing (vlan). When the destination MAC address is not provided, hardware hashing is assumed.
•(For multicast frames) For IP multicast, provide either the destination IP address (dst-ip) or destination MAC address (dst-mac) with the VLAN for hardware hashing (vlan). For non-ip multicast, provide the destination MAC address with the VLAN for hardware hashing.
•(For broadcast frames) Provide the destination MAC address (dst-mac) and the VLAN for hardware hashing (vlan).
Examples
This example shows how to display the port channel load balance 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#
Table 3-1 describes the fields shown in the display:
This example shows how to display the port channel load balance 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 balance 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 balance 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 balance 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#
Related Commands
|
|
|
|---|---|
port-channel load-balance ethernet |
Configures the load-balancing method among the interfaces in the channel-group bundle. |
show port-channel summary
To display summary information about EtherChannels, use the show port-channel summary command.
show port-channel summary
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
Global configuration mode
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
Before you use this command, you must configure an EtherChannel group using the interface port-channel command.
Examples
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#
Related Commands
show port-channel traffic
To display the traffic statistics for EtherChannels, use the show port-channel traffic command.
show port-channel traffic [interface port-channel number[.subinterface-number]]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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#
Related Commands
show port-channel usage
To display the range of used and unused EtherChannel numbers, use the show port-channel usage command.
show port-channel usage
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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#
Related Commands
show resource
To display the number of resources currently available in the system, use the show resource command.
show resource [resource]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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
switch#
Related Commands
|
|
|
|---|---|
show interface port-channel |
Displays information about EtherChannels. |
show running-config
To display the contents of the currently running configuration file, use the show running-config command.
show running-config [all]
Syntax Description
all |
(Optional) Displays the full operating information including default settings. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
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
Related Commands
|
|
|
|---|---|
show startup-config |
Displays the contents of the startup configuration file. |
show running-config spanning-tree
To display the running configuration for the Spanning Tree Protocol (STP), use the show running-config spanning-tree command.
show running-config spanning-tree [all]
Syntax Description
all |
(Optional) Displays current STP operating information including default settings. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display information on the running STP configuration:
switch# show running-config spanning-tree
This example shows how to display detailed information on the running STP configuration:
switch# show running-config spanning-tree all
Note Display output differs slightly depending on whether you are running Rapid Per VLAN Spanning Tree Plus (Rapid PVST+) or Multiple Spanning Tree (MST).
Related Commands
|
|
|
|---|---|
show spanning-tree |
Displays information about STP. |
show running-config vlan
To display the running configuration for a specified VLAN, use the show running-config vlan command.
show running-config vlan vlan-id
Syntax Description
vlan-id |
Number of VLAN or range of VLANs. Valid numbers are from 1 to 4096. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
This command provides information on the specified VLAN, including private VLANs.
The display varies with your configuration. If you have configured the VLAN name, shutdown status, or suspended status, these are also displayed.
Examples
This example shows how to display the running configuration for VLAN 5:
switch# show running-config vlan 5
Related Commands
|
|
|
|---|---|
show vlan |
Displays information about all the VLANs on the switch. |
show spanning-tree
To display information about the Spanning Tree Protocol (STP), use the show spanning-tree command.
show spanning-tree [blockedports | inconsistentports | pathcost method]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
The STP port type displays only when you have configured the port as either an STP edge port or an STP network port. If you have not configured the STP port type, no port type displays.
Table 3-2 describes the fields that are displayed in the output of show spanning-tree commands.
Note Display output differs slightly depending on whether you are running Rapid Per VLAN Spanning Tree Plus (Rapid PVST+) or Multiple Spanning Tree (MST).
Examples
This example shows how to display spanning tree information:
switch# show spanning-tree
VLAN0001
Spanning tree enabled protocol rstp
Root ID Priority 1
Address 000d.ecb0.fdbc
Cost 2
Port 4096 (port-channel1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 61441 (priority 61440 sys-id-ext 1)
Address 0005.9b78.6e7c
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Po1 Root FWD 1 128.4096 (vPC peer-link) Network P2p
Po3 Root FWD 1 128.4098 (vPC) P2p
Po123 Desg FWD 4 128.4218 Edge P2p
Eth1/11 Desg BKN*2 128.139 P2p *TYPE_Inc
Eth1/12 Desg BKN*2 128.140 P2p *TYPE_Inc
Eth1/15 Desg BKN*2 128.143 P2p *TYPE_Inc
Eth1/16 Desg BKN*2 128.144 P2p *TYPE_Inc
Eth1/33 Desg FWD 2 128.161 Edge P2p
Eth1/35 Desg FWD 2 128.163 Edge P2p
Eth1/36 Desg FWD 2 128.164 Edge P2p
Eth1/38 Desg FWD 2 128.166 Edge P2p
Eth100/1/1 Desg FWD 1 128.1025 (vPC) Edge P2p
Eth100/1/2 Desg FWD 1 128.1026 (vPC) Edge P2p
Eth100/1/3 Desg FWD 1 128.1027 (vPC) Edge P2p
Eth100/1/4 Desg FWD 1 128.1028 (vPC) Edge P2p
--More--
switch#
This example shows how to display the blocked ports in spanning tree:
switch(config)# show spanning-tree blockedports
Name Blocked Interfaces List
-------------------- ------------------------------------
VLAN0001 Eth1/11, Eth1/12, Eth1/15, Eth1/16
Number of blocked ports (segments) in the system : 4
switch#
This example shows how to determine if any ports are in any STP-inconsistent state:
switch# show spanning-tree inconsistentports
Name Interface Inconsistency
-------------------- ---------------------- ------------------
VLAN0001 Eth1/11 Port Type Inconsistent
VLAN0001 Eth1/12 Port Type Inconsistent
VLAN0001 Eth1/15 Port Type Inconsistent
VLAN0001 Eth1/16 Port Type Inconsistent
Number of inconsistent ports (segments) in the system : 4
switch#
This example shows how to display the path cost method:
switch(config)# show spanning-tree pathcost method Spanning tree default pathcost method used is short
switch#
Related Commands
show spanning-tree active
To display Spanning Tree Protocol (STP) information on STP-active interfaces only, use the show spanning-tree active command.
show spanning-tree active [brief | detail]
Syntax Description
brief |
(Optional) Displays a brief summary of STP interface information. |
detail |
(Optional) Displays a detailed summary of STP interface information. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display STP information on the STP-active interfaces:
switch# show spanning-tree active
Related Commands
show spanning-tree bridge
To display the status and configuration of the local Spanning Tree Protocol (STP) bridge, use the show spanning-tree bridge command.
show spanning-tree bridge [address | brief | detail | forward-time | hello-time | id | max-age | priority [system-id] | protocol]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display STP information for the bridge:
switch# show spanning-tree bridge
Related Commands
show spanning-tree brief
To display a brief summary of the Spanning Tree Protocol (STP) status and configuration on the switch, use the show spanning-tree brief command.
show spanning-tree brief [active]
Syntax Description
active |
(Optional) Displays information about STP active interfaces only. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display a brief summary of STP information:
switch(config)# show spanning-tree brief
VLAN0001
Spanning tree enabled protocol rstp
Root ID Priority 32769
Address 000d.ecb0.fc7c
Cost 1
Port 4495 (port-channel400)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 000d.ece7.df7c
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Po19 Desg FWD 1 128.4114 Edge P2p
Po400 Root FWD 1 128.4495 (vPC peer-link) Network P2p
Eth170/1/17 Desg FWD 2 128.3857 Edge P2p
Eth171/1/7 Desg FWD 1 128.3975 (vPC) Edge P2p
Eth171/1/8 Desg FWD 1 128.3976 (vPC) Edge P2p
Eth198/1/11 Desg FWD 1 128.1291 (vPC) Edge P2p
Eth199/1/13 Desg FWD 2 128.1677 Edge P2p
VLAN0300
Spanning tree enabled protocol rstp
Root ID Priority 4396
--More--
switch#
Related Commands
show spanning-tree detail
To display detailed information on the Spanning Tree Protocol (STP) status and configuration on the switch, use the show spanning-tree detail command.
show spanning-tree detail [active]
Syntax Description
active |
(Optional) Displays information about STP active interfaces only. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display detailed information on the STP configuration:
switch(config)# show spanning-tree detail
Related Commands
show spanning-tree interface
To display information on the Spanning Tree Protocol (STP) interface status and configuration of specified interfaces, use the show spanning-tree interface command.
show spanning-tree interface {ethernet slot/port | port-channel number} [active [brief | detail] | brief [active] | cost | detail [active] | edge | inconsistency | priority | rootcost | state]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
The STP port type displays only when you have configured the port as either an STP edge port or an STP network port. If you have not configured the STP port type, no port type displays.
If you specify an interface that is not running STP, the switch returns an error message.
When you are running Multiple Spanning Tree (MST), this command displays the Per VLAN Spanning Tree (PVST) simulation setting.
Note If you are running Multiple Spanning Tree (MST), use the show spanning-tree mst command to show more detail on the specified interfaces.
Examples
This example shows how to display STP information on a specified interface:
switch(config)# show spanning-tree interface ethernet 1/3
This example shows how to display detailed STP information on a specified interface:
switch(config)# show spanning-tree interface ethernet 1/3 detail
Related Commands
show spanning-tree mst
To display information on Multiple Spanning Tree (MST) status and configuration, use the show spanning-tree mst command.
show spanning-tree mst [instance-id [detail | interface {ethernet slot/port | port-channel number} [detail]]
show spanning-tree mst [configuration [digest]]
show spanning-tree mst [detail | interface {ethernet slot/port | port-channel number} [detail]]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
If the switch is not running in STP Multiple Spanning Tree (MST) mode when you enter this command, it returns the following message:
ERROR: Switch is not in mst mode
Examples
This example shows how to display STP information about Multiple Spanning Tree (MST) instance information for the VLAN ports that are currently active:
switch# show spanning-tree mst
This example shows how to display STP information about a specific Multiple Spanning Tree (MST) instance:
switch)# show spanning-tree mst 0
This example shows how to display detailed STP information about the Multiple Spanning Tree (MST) protocol:
switch)# show spanning-tree mst detail
This example shows how to display STP information about specified Multiple Spanning Tree (MST) interfaces:
switch)# show spanning-tree mst interface ethernet 8/2
This example shows how to display information about the Multiple Spanning Tree (MST) configuration:
switch)# show spanning-tree mst configuration
This example shows how to display the MD5 digest included in the current Multiple Spanning Tree (MST) configuration:
switch)# show spanning-tree mst configuration digest
See Table 3-2 for descriptions of the fields that are displayed in the output of the show spanning-tree commands.
Related Commands
show spanning-tree root
To display the status and configuration of the Spanning Tree Protocol (STP) root bridge, use the show spanning-tree root command.
show spanning-tree root [address | brief | cost | detail | forward-time | hello-time | id | max-age | port | priority [system-id]]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display information for the root bridge:
switch(config)# show spanning-tree root
Related Commands
show spanning-tree summary
To display summary Spanning Tree Protocol (STP) information on the switch, use the show spanning-tree summary command.
show spanning-tree summary [totals]
Syntax Description
totals |
(Optional) Displays totals only of STP information. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
The display output for this command differs when you are running Rapid Per VLAN Spanning Tree Plus (Rapid PVST+) or Multiple Spanning Tree (MST).
Examples
This example shows how to display a summary of STP information on the switch:
switch(config)# show spanning-tree summary
Related Commands
show spanning-tree vlan
To display Spanning Tree Protocol (STP) information for specified VLANs, use the show spanning-tree vlan command.
show spanning-tree vlan {vlan-id} [active [brief | detail]]
show spanning-tree vlan {vlan-id} [blockedports]
show spanning-tree vlan {vlan-id} [bridge [address] | brief | detail | forward-time | hello-time | id | max-age | priority [system-id] | protocol]
show spanning-tree vlan {vlan-id} [brief [active]]
show spanning-tree vlan {vlan-id} [detail [active]]
show spanning-tree vlan {vlan-id} [inconsistentports]
show spanning-tree vlan {vlan-id} [interface {ethernet slot/port | port-channel number} [active [brief | detail]] | brief [active] | cost | detail [active] | edge | inconsistency | priority | rootcost | state]]
show spanning-tree vlan {vlan-id} [root [address | brief | cost | detail | forward-time | hello-time | id | max-age | port | priority [system-id]]
show spanning-tree vlan {vlan-id} [summary]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display STP information on VLAN 1:
switch# show spanning-tree vlan 1
Related Commands
show startup-config
To display the contents of the currently running configuration file, use the show startup-config command.
show startup-config
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display information from the startup configuration file:
switch# show startup-config
Related Commands
|
|
|
|---|---|
show running-config |
Displays the contents of the currently running configuration file. |
show tech-support port-channel
To display troubleshooting information about EtherChannel interfaces, use the show tech-support port-channel command.
show tech-support port-channel
Syntax Description
This command has no arguments and keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
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.
Examples
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#
Related Commands
show udld
To display the Unidirectional Link Detection (UDLD) information for a switch, use the show udld command.
show udld [ethernet slot/port | global | neighbors]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(1a)N1(1) |
This command was introduced. |
Examples
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#
Related Commands
|
|
|
|---|---|
udld (configuration mode) |
Configures the UDLD protocol on the switch. |
udld (Ethernet) |
Configures the UDLD protocol on an Ethernet interface. |
show vlan
To display VLAN information, use the show vlan command.
show vlan [brief | name {name} | summary]
Syntax Description
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
This command displays information for all VLANs, including private VLANs, on the switch.
Each access port can belong to only one VLAN. Trunk ports can be on multiple VLANs.
Note Although a port can be associated with a VLAN as an access VLAN, a native VLAN, or one of the trunk allowed ports, only access VLANs are shown under Ports in the display.
If you shut down a VLAN using the state suspend or the state active command, these values appear in the Status field:
•suspended—VLAN is suspended.
•active—VLAN is active.
If you shut down a VLAN using the shutdown command, these values appear in the Status field:
•act/lshut—VLAN status is active but shut down locally.
•sus/lshut—VLAN status is suspended but shut down locally.
If a VLAN is shut down internally, these values appear in the Status field:
•act/ishut—VLAN status is active but shut down internally.
•sus/ishut—VLAN status is suspended but shut down internally.
If a VLAN is shut down locally and internally, the value that is displayed in the Status field is act/ishut or sus/ishut. If a VLAN is shut down locally only, the value that is displayed in the Status field is act/lshut or sus/lshut.
Examples
This example shows how to display information for all VLANs on the switch:
switch# show vlan
This example shows how to display the VLAN name, status, and associated ports only:
switch# show vlan brief
This example shows how to display the VLAN information for a specific VLAN by name:
switch# show vlan name test
This example shows how to display information about the number of VLANs configured on the switch:
switch# show vlan summary
Related Commands
|
|
|
|---|---|
show interface switchport |
Displays information about the ports, including those in private VLANs. |
show vlan private-vlan |
Displays private VLAN information. |
show vlan dot1Q tag native
To display the status of tagging on the native VLANs, use the show vlan dot1Q tag native command.
show vlan dot1Q tag native
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display the status of 802.1Q tagging on the native VLANs:
switch# show vlan dot1Q tag native
vlan dot1q native tag is enabled
switch#
Related Commands
|
|
|
|---|---|
vlan dot1q tag nativet |
Enables dot1q (IEEE 802.1Q) tagging for all native VLANs on all trunked ports on the switch. |
show vlan id
To display information and statistics for an individual VLAN or a range of VLANs, use the show vlan id command.
show vlan id {vlan-id}
Syntax Description
vlan-id |
VLAN or range of VLANs that you want to display. |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Usage Guidelines
Use this command to display information and statistics on an individual VLAN or a range of VLANs, including private VLANs.
Note You can also display information about individual VLANs using the show vlan name command.
Examples
This example shows how to display information for the individual VLAN 5:
switch# show vlan id 5
Related Commands
|
|
|
|---|---|
show vlan |
Displays information about VLANs on the switch. |
show vlan private-vlan
To display private VLAN information, use the show vlan private-vlan command.
show vlan [id {vlan-id}] private-vlan [type]
Syntax Description
id vlan-id |
(Optional) Displays private VLAN information for the specified VLAN. |
type |
(Optional) Displays the private VLAN type (primary, isolated, or community). |
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.0(0)N1(1a) |
This command was introduced. |
Examples
This example shows how to display information on all private VLANs on the switch:
switch(config)# show vlan private-vlan
This example shows how to display information for a specific private VLAN:
switch(config)# show vlan id 42 private-vlan
This example shows how to display information on the types of all private VLANs on the switch:
switch(config)# show vlan private-vlan type
This example shows how to display information on the type for the specified private VLAN:
switch(config)# show vlan id 42 private-vlan type
Related Commands
show vtp status
To display the VLAN Trunking Protocol (VTP) domain status information, use the show vtp status command.
show vtp status
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
EXEC mode
Command History
|
|
|
|---|---|
4.2(1)N1(1) |
This command was introduced. |
Usage Guidelines
Before you use this command, you must enable VTP on the switch by using the feature vtp command.
Examples
This example shows how to display the VTP domain status:
switch# show vtp status
VTP Version : 1
Configuration Revision : 0
Maximum VLANs supported locally : 1005
VTP Operating Mode : Transparent
VTP Domain Name :
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
switch#
Related Commands
|
|
|
|---|---|
feature vtp |
Enables VTP on the switch. |
vtp domain |
Configures the VTP domain. |
vtp mode |
Configures the VTP device mode. |
vtp version |
Configures the VTP version. |
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