Displaying And Maintaining Igmp Snooping - H3C S5100-SI Series Operation Manual

Operation Manual – Multicast
H3C S5100-SI/EI Series Ethernet Switches
Note:
One port can belong to only one multicast VLAN.
The port connected to a user terminal must be a hybrid port.
The multicast member ports must be in the same VLAN with the router port.
Otherwise, the multicast member port cannot receive multicast packets.
If a router port is in a multicast VLAN, the router port must be configured as a trunk
port or a hybrid port that allows tagged packets to pass for the multicast VLAN.
Otherwise, all the multicast member ports in this multicast VLAN cannot receive
multicast packets.
When the multicast VLAN is set up, all IGMP report messages are forwarded to the
router ports in the multicast VLAN. If no router ports exist in the multicast VLAN, all
IGMP report messages are flooded within the multicast VLAN.

2.3 Displaying and Maintaining IGMP Snooping

After the configuration above, you can execute the following display commands in any
view to verify the configuration by checking the displayed information.
You can execute the reset command in user view to clear the statistics information
about IGMP Snooping.
Table 2-21 Display and maintain IGMP Snooping
Display the current IGMP
Snooping configuration
Display IGMP Snooping
message statistics
Display the information
about IP and MAC
multicast groups in one or
all VLANs
Clear IGMP Snooping
statistics
Operation
display igmp-snooping
configuration
display igmp-snooping
statistics
display igmp-snooping
group [ vlan vlanid ]
reset igmp-snooping
statistics
Chapter 2 IGMP Snooping Configuration
Command
2-18
Remarks
You can execute the
display commands in any
view.
You can execute the
reset command in user
view.