H3C Technologies H3C S7500E Series Switches - Manual (Page 58)

2-26
To do... Use the command... Remarks
Configure 802.1p precedence
for IGMP messages in the VLAN
igmp-snooping dot1p-priority
priority-number
Required
The default 802.1p precedence
for IGMP messages is 0.
Displaying and Maintaining IGMP Snooping
To do... Use the command... Remarks
Display IGMP snooping multicast
group information (on a distributed
device)
display igmp-snooping group [ vlan
vlan-id ] [ slot slot-number ] [ verbose ]
Available in
any view
Display information about IGMP
snooping multicast groups (on a
distributed IRF device)
display igmp-snooping group [ vlan
vlan-id ] [ chassis chassis-number slot
slot-number ] [ verbose ]
Available in
any view
Display the statistics information of
IGMP messages learned by IGMP
snooping
display igmp-snooping statistics
Available in
any view
Remove all the dynamic group
entries of a specified IGMP snooping
group or all IGMP snooping groups
reset igmp-snooping group
{ group-address | all } [ vlan vlan-id ]
Available in
user view
Clear the statistics information of all
kinds of IGMP messages learned by
IGMP snooping
reset igmp-snooping statistics
Available in
user view
z The reset igmp-snooping group command works only on an IGMP snooping–enabled
VLAN, but not on a VLAN with IGMP enabled on its VLAN interface.
z 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
z As shown in Figure 2-4 , Router A connects to the multicast source through GigabitEthernet
2/0/2 and to Switch A through GigabitEthernet 2/0/1.