H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – Multicast
H3C S7500E Series Ethernet Switches Chapter 2 IGMP Snooping Configuration
2-21
To do... Use the command... Remarks
Enter system view
system-view
—
Enter IGMP Snooping
view
igmp-snooping
—
Enable IGMP report
suppression
report-aggregation
Optional
Enabled by default
2.6.6 Configuring Maximum Multicast Groups that Can Be Joined on a Port
By configuring the maximum number of multicast groups that can be joined on a port,
you can limit the number of multicast programs on-demand available to users, thus to
regulate traffic on the port.
Follow these steps to configure the maximum number of multicast groups that can be
joined on a port or ports:
To do... Use the command... Remarks
Enter system view
system-view
—
Enter Ethernet
port view
interface interface-type
interface-number
Enter the
corresponding
view
Enter port
group view
port-group { manual
port-group-name |
aggregation agg-id }
Required
Use either
command.
Configure the maximum number
of multicast groups that can be
joined on the port(s)
igmp-snooping
group-limit limit [ vlan
vlan-list ]
Optional
512 by default.
 Note:
z When the number of multicast groups a port has joined reaches the maximum
number configured, the system deletes all the forwarding entries persistent to that
port from the IGMP Snooping forwarding table, and the hosts on this port need to
join the multicast groups again.
z If you have configured static or simulated joins on a port, however, when the number
of multicast groups on the port exceeds the configured threshold, the system
deletes all the forwarding entries persistent to that port from the IGMP Snooping
forwarding table and applies the static or simulated joins again, until the number of
multicast groups joined by the port comes back within the configured threshold.