Displaying And Maintaining Igmp Snooping; Igmp Snooping Configuration Examples; Group Policy And Simulated Joining Configuration Example - H3C S5120-SI Series Configuration Manual

Displaying and Maintaining IGMP Snooping

To do...
Display IGMP snooping multicast
group information (on a centralized
device)
Display the statistics information of
IGMP messages learned by IGMP
snooping
Remove all the dynamic group
entries of a specified IGMP
snooping group or all IGMP
snooping groups
Clear the statistics information of all
kinds of IGMP messages learned
by IGMP snooping
The reset igmp-snooping group command works only on an IGMP snooping–enabled VLAN.
The reset igmp-snooping group command cannot clear the IGMP snooping multicast group
information for static joins.

IGMP Snooping Configuration Examples

Group Policy and Simulated Joining Configuration Example

Network requirements
As shown in
and to Switch A through GigabitEthernet 1/0/1.
IGMPv2 is required on Router A, IGMP snooping version 2 is required on Switch A, and Router A
will act as the IGMP querier on the subnet.
It is required that the receivers, Host A and Host B, attached to Switch A can receive multicast
traffic addressed to multicast group 224.1.1.1 only.
It is required that multicast data for group 224.1.1.1 can be forwarded through GigabitEthernet
1/0/3 and GigabitEthernet 1/0/4 of Switch A even if Host A and Host B accidentally, temporarily
stop receiving multicast data.
display igmp-snooping group [ vlan
vlan-id ] [ verbose ]
display igmp-snooping statistics
reset igmp-snooping group
{ group-address | all } [ vlan vlan-id ]
reset igmp-snooping statistics
Figure 2-4, Router A connects to the multicast source through GigabitEthernet 1/0/2
Use the command...
2-20
Remarks
Available in
any view
Available in
any view
Available in
user view
Available in
user view