Table of Contents
Chapter 24
Configuring IGMP Snooping and MVR
Displaying IGMP Snooping Information
You can display IGMP snooping information for dynamically learned and statically configured router
ports and VLAN interfaces. You can also display MAC address multicast entries for a VLAN configured
for IGMP snooping.
To display IGMP snooping information, use one or more of the privileged EXEC commands in
Table
Table 24-4
Commands for Displaying IGMP Snooping Information
Command
show ip igmp snooping [vlan vlan-id]
show ip igmp snooping groups [count
|dynamic [count] | user [count]]
show ip igmp snooping groups vlan
vlan-id
[ip_address | count | dynamic [count] |
user[count]]
show ip igmp snooping mrouter [vlan
vlan-id]
show ip igmp snooping querier [vlan
vlan-id]
show ip igmp snooping querier [vlan
vlan-id] detail
For more information about the keywords and options in these commands, see the command reference
for this release.
OL-13270-06
24-4.
Purpose
Display the snooping configuration information for all VLANs on the switch or
for a specified VLAN.
(Optional) Enter vlan vlan-id to display information for a single VLAN. The
VLAN ID range is 1 to 1001 and 1006 to 4094.
Display multicast table information for the switch or about a specific parameter:
count—Display the total number of entries for the specified command
•
options instead of the actual entries.
dynamic—Display entries learned through IGMP snooping.
•
user—Display only the user-configured multicast entries.
•
Display multicast table information for a multicast VLAN or about a specific
parameter for the VLAN:
vlan-id—The VLAN ID range is 1 to 1001 and 1006 to 4094.
•
•
count—Display the total number of entries for the specified command
options instead of the actual entries.
dynamic—Display entries learned through IGMP snooping.
•
•
ip_address—Display characteristics of the multicast group with the specified
group IP address.
user—Display only the user-configured multicast entries.
•
Display information on dynamically learned and manually configured multicast
router interfaces.
Note
When you enable IGMP snooping, the switch automatically learns the
interface to which a multicast router is connected. These are dynamically
learned interfaces.
(Optional) Enter vlan vlan-id to display information for a single VLAN.
Display information about the IP address and receiving port for the most-recently
received IGMP query messages in the VLAN.
(Optional) Enter vlan vlan-id to display information for a single VLAN.
Display information about the IP address and receiving port of the most-recently
received IGMP query message in the VLAN and the configuration and
operational state of the IGMP snooping querier in the VLAN.
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
Displaying IGMP Snooping Information
24-17
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