Cisco 3750G - Catalyst Integrated Wireless LAN Controller, Руководство по настройке

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24-17
Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
Chapter 24 Configuring IGMP Snooping and MVR
Displaying IGMP Snooping Information
To display IGMP snooping information, use one or more of the privileged EXEC commands in
Table 24-4 .
For more information about the keywords and options in these commands, see the command reference
for this release.
Table 24-4 Commands for Displaying IGMP Snooping Information
Command Purpose
show ip igmp snooping [ vlan vlan-id ] 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.
show ip igmp snooping groups [ count |dynamic
[ count ] | user [ count ]]
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.
show ip igmp snooping groups vlan vlan-id
[ ip_address | count | dynamic [ count ] |
user [ count ]]
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.
show ip igmp snooping mrouter [ vlan vlan-id ] 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.
show ip igmp snooping querier [ vlan vlan-id ] 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.
show ip igmp snooping querier [ vlan vlan-id ]
detail
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.