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25 Settings and Operation for IGMP Snooping and MLD Snooping
25.2 IGMP snooping operation
25.2.1 List of operation commands
The following table describes the operation commands for IGMP snooping.
Table 25-2 List of operation commands
Command name
show igmp-snooping
clear igmp-snooping
25.2.2 Checking IGMP snooping
The following describes the IGMP snooping contents to be checked when IGMP snooping
functionality is used.
(1) Checking the setting status of IGMP snooping
Execute the
IGMP snooping are correct.
Figure 25-1 Displayed status for IGMP snooping settings
> show igmp-snooping
Date 2008/11/14 15:56:12 UTC
VLAN counts: 3
VLAN 3253:
IP Address: 192.168.53.100/24
IGMP querying system: 192.168.53.100
Port (4): 0/13-16
Mrouter-port: 0/13-16
Group counts: 5
VLAN 3254:
IP Address: 192.168.54.100/24
IGMP querying system:
Port (4): 0/17-20
Mrouter-port: 0/17-20
Group counts: 5
VLAN 3255:
IP Address: 192.168.55.100/24
IGMP querying system:
Port (4): 0/21-24
Mrouter-port: 0/21-24
Group counts: 5
>
(2) During operation
Execute the following command to check the status of IGMP snooping during operation.
Use the
learned MAC addresses, IPv4 multicast addresses forwarded within a VLAN, and a
list of forwarding destination ports.
Figure 25-2 Results of executing the show igmp-snooping group command
> show igmp-snooping group
450
Description
Displays IGMP snooping information.
Clears all IGMP snooping information.
show igmp-snooping
show igmp-snooping group
operation command to check that the settings related to
Querier: enable
Querier: disable
Querier: disable
operation command to check the statuses of
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