Show Commands
This chapter describes the Cisco NX-OS IGMP snooping show commands.
show forwarding distribution ip igmp snooping
To display information about Layer 2 IGMP snooping multicast Forwarding Information Base (FIB) distribution, use the show forwarding distribution ip igmp snooping command.
show forwarding distribution ip igmp snooping [ vlan vlan-id [ group group-addr [ source source-addr ]]]
Syntax Description
vlan vlan-id |
(Optional) Specifies a VLAN. The range is from 1 to 3967 and 4048 to 4093. |
group group-addr |
(Optional) Specifies a group address. |
source source-addr |
(Optional) Specifies a source address. |
Command Modes
Any command mode
Command History
|
|
5.0(3)N1(1) |
This command was introduced. |
Usage Guidelines
This command does not require a license.
Examples
This example shows how to display information about Layer 2 IGMP snooping multicast FIB distribution:
switch(
config)#
show forwarding distribution ip igmp snooping
Related Commands
|
|
test forwarding distribution perf |
Tests the forwarding distribution performance of the Forwarding Information Base (FIB). |
show ip igmp snooping
To display information about IGMP snooping, use the show ip igmp snooping command.
show ip igmp snooping [ vlan vlan-id ]
Syntax Description
vlan vlan-id |
(Optional) Specifies a VLAN. The range is from 1 to 3967 and 4048 to 4093. The default is all VLANs. |
Command Default
Displays all VLANs.
Command Modes
Any command mode
Command History
|
|
5.0(3)N1(1) |
This command was introduced. |
Usage Guidelines
This command does not require a license.
Examples
This example shows how to display information about IGMP snooping for a VLAN:
switch(
config)#
show ip igmp snooping vlan 20
IGMP Snooping information for vlan 20
Optimised Multicast Flood (OMF) 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
show ip igmp snooping event-history
To display information in the IGMP snooping event history buffers, use the show ip igmp snooping event-history command.
show ip igmp snooping event-history { vpc | igmp-snoop-internal | mfdm | mfdm-sum | vlan | vlan-events }
Syntax Description
vpc |
Displays the event history buffer of type virtual port channel (vPC). |
igmp-snoop- internal |
Displays the event history buffer of type IGMP snooping internal. |
mfdm |
Displays the event history buffer of type multicast FIB distribution (MFDM). |
mfdm-sum |
Displays the event history buffer of type MFDM sum. |
vlan |
Displays the event history buffer of type VLAN. |
vlan-events |
Displays the event history buffer of type VLAN events. |
Command Modes
Any command mode
Command History
|
|
5.0(3)N1(1) |
This command was introduced. |
Usage Guidelines
This command does not require a license.
Examples
This example shows how to display information in the IGMP snooping VLAN event history buffer:
switch(config)# show ip igmp snooping event-history vlan
vlan Events for IGMP snoopprocess
2008 Apr 12 06:30:47.790031 igmp [4588]: : IGMPv3 proxy report: no routers found
2008 Apr 12 06:30:47.790012 igmp [4588]: : IGMPv3 proxy report: no records to se
2008 Apr 12 06:30:47.789882 igmp [4588]: : IGMPv3 proxy report: no routers found
2008 Apr 12 06:30:47.789740 igmp [4588]: : IGMPv3 proxy report: no routers found
2008 Apr 12 06:30:47.789721 igmp [4588]: : IGMPv3 proxy report: no records to se
2008 Apr 12 06:30:47.789584 igmp [4588]: : IGMPv3 proxy report: no routers found
2008 Apr 12 06:13:17.022028 igmp [4588]: : Received a STP Topology change notifi
2008 Apr 12 06:13:17.022023 igmp [4588]: : Received a STP Topology change notifi
2008 Apr 12 06:13:15.022294 igmp [4588]: : Received a STP Topology change notifi
2008 Apr 12 06:13:15.022289 igmp [4588]: : Received a STP Topology change notifi
2008 Apr 12 06:13:14.662417 igmp [4588]: : Received a STP Topology change notifi
2008 Apr 12 06:13:14.662412 igmp [4588]: : Received a STP Topology change notifi
2008 Apr 12 06:13:12.642393 igmp [4588]: : Received a STP Topology change notifi
2008 Apr 12 06:13:12.642388 igmp [4588]: : Received a STP Topology change notifi
2008 Apr 12 06:13:11.946051 igmp [4588]: : Received a STP Topology change notifi
2008 Apr 12 06:13:11.946046 igmp [4588]: : Received a STP Topology change notifi
Related Commands
|
|
ip igmp snooping event-history |
Configures the size of the IGMP snooping event history buffers. |
clear ip igmp snooping event-history |
Clears information in the IGMP snooping event history buffers. |
show ip igmp snooping explicit-tracking
To display information about explicit tracking for IGMP snooping, use the show ip igmp snooping explicit-tracking command.
show ip igmp snooping explicit-tracking [ vlan vlan-id ]
Syntax Description
vlan vlan-id |
(Optional) Specifies a VLAN. The range is from 1 to 3967 and 4048 to 4093. |
Command Modes
Any command mode
Command History
|
|
5.0(3)N1(1) |
This command was introduced. |
Usage Guidelines
When you use this command without the optional vlan argument, the system displays information for all VLANs.
This command does not require a license.
Examples
This example shows how to display information about explicit tracking for IGMP snooping for VLAN 33:
switch#
show ip igmp snooping explicit-tracking vlan 33
Related Commands
|
|
clear ip igmp snooping explicit-tracking vlan |
Clears the IGMP snooping explicit host tracking information for VLANs. |
ip igmp snooping explicit-tracking |
Enables tracking of IGMPv3 membership reports from individual hosts for each port on a VLAN. |
show ip igmp snooping groups
To display information about the group membership for IGMP snooping, use the show ip igmp snooping groups command.
show ip igmp snooping groups [{ source [ group ]} | { group [ source ]}] [ vlan vlan-id ] [ detail ]
Syntax Description
source |
(Optional) Source address for route. |
group |
(Optional) Group address for route. |
vlan vlan-id |
(Optional) Specifies a VLAN. The range is from 1 to 3967 and 4048 to 4093. |
detail |
(Optional) Displays detailed information for the group. |
Command Modes
Any command mode
Command History
|
|
5.0(3)N1(1) |
This command was introduced. |
Usage Guidelines
This command does not require a license.
Examples
This example shows how to display information about the group membership for IGMP snooping:
switch(
config)#
show ip igmp snooping groups
TType: S - Static, D - Dynamic, R - Router port
Vlan Group Address Ver Type Port list
show ip igmp snooping mrouter
To display the multicast routers detected by IGMP snooping, use the show ip igmp snooping mrouter command.
show ip igmp snooping mrouter [ vlan vlan-id ]
Syntax Description
vlan vlan-id |
(Optional) Specifies a VLAN. The range is from 1 to 3967 and 4048 to 4093. |
Command Modes
Any command mode
Command History
|
|
5.0(3)N1(1) |
This command was introduced. |
Usage Guidelines
This command does not require a license.
Examples
This example shows how to display the multicast routers detected by IGMP snooping:
switch(
config)#
show ip igmp snooping mrouter
Type: S - Static, D - Dynamic, V - vPC Peer Link
Type: S - Static, D - Dynamic, V - vPC Peer Link, I - Internal
Vlan Router-port Type Uptime Expires
20 Vlan20 I 04:16:16 never (down)
show ip igmp snooping querier
To display information about IGMP snooping queriers, use the show ip igmp snooping querier command.
show ip igmp snooping querier [ vlan vlan-id ]
Syntax Description
vlan vlan-id |
(Optional) Specifies a VLAN. The range is from 1 to 3967 and 4048 to 4093. |
Command Modes
Any command mode
Command History
|
|
5.0(3)N1(1) |
This command was introduced. |
Usage Guidelines
This command does not require a license.
Examples
This example shows how to display information about IGMP snooping queriers:
switch(
config)#
show ip igmp snooping querier
show ip igmp snooping statistics
To display information about IGMP snooping statistics, use the show ip igmp snooping statistics command.
show ip igmp snooping statistics [ vlan vlan-id | global ]
Syntax Description
vlan vlan-id |
(Optional) Specifies a VLAN. The range is from 1 to 3967 and 4048 to 4093. |
global |
(Optional) Specifies the global statistics. |
Command Modes
Any command mode
Command History
|
|
5.0(3)N1(1) |
This command was introduced. |
Usage Guidelines
When you use this command without any options, the system prints statistics for all VLANs.
This command does not require a license.
Examples
This example shows how to display information about IGMP snooping statistics for VLAN 1:
switch(
config)#
show ip igmp snooping statistics vlan 1