H3C Technologies H3C S3100 Series Switches - Manual (Page 247)

Operation Manual – Multicast
H3C S3100-52P Ethernet Switch Chapter 2 IGMP Snooping Configuration
2-10
Operation Command Description
Limit the number of
multicast groups on a port
igmp
-snooping
group
-limit limit [ vlan
vlan
-list
[ overflow-replace ] ]
Required
The number of multicast
groups on a port is not
limited by default.
2.2.6 Configuring IGMP Querier
In an IGMP-enabled multicast network, a query multicast router or Layer 3 multicast
switch is specifically responsible for sending IGMP query packets.
However, the Layer 2 multicast switch does not support the IGMP feature. Therefore,
the Layer 2 multicast switch cannot implement the querier feature and cannot send
general group query packets. By configuring IGMP Snooping queriers, you can enable
the Layer 2 multicast switch to send general group query packets actively at data link
layer, and thereby establish and maintain the multicast forwarding entries.
Additionally, you can enable the Layer 2 switch to send the source addresses,
maximum query response time, and query interval of general group query packets,
Table 2-10
Configure IGMP Snooping querier
Operation Command Description
Enter system view
system-view
—
Enable the IGMP
Snooping feature in
system view
igmp-snooping enable
Required
The IGMP Snooping
feature is disabled by
default.
Enter VLAN view
vlan vlan-id
—
Enable the IGMP
Snooping feature in VLAN
view
igmp-snooping enable
Required
By default, the IGMP
Snooping feature is
disabled.
Configure the IGMP
Snooping querier feature
igmp-snooping querier
Required
The IGMP Snooping
querier feature is disabled
by default.
Configure the interval of
sending general query
packets
igmp-snooping
query-interval seconds
Optional
By default, the interval of
sending general query
packets is 60 seconds.