Operation Manual – Multicast Protocol
H3C S5500-SI Series Ethernet Switches
Chapter 1 IGMP Snooping Configuration
1-19
To do...
Use the command...
Remarks
Enter
Ethernet
port view
interface interface-type interface-number
Enter
the
corre
spon
ding
view
Enter port
group
view
port-group
{
manual port-group-name
|
aggregation agg-id
}
Use either
command
Configure the
maximum number
of multicast groups
that can pass the
port(s)
igmp-snooping group-limit
limit
[
vlan
vlan-list
]
Optional
128 by default
Note:
z
When the number of multicast groups a port has joined reaches the maximum
number configured, the system deletes this port from all the related IGMP Snooping
forwarding entries, and hosts on this port need to join multicast groups again.
z
If you have configured a port to be a static member port or enabled the function of
simulating a member host on a port, the system deletes this port from all the related
IGMP Snooping forwarding entries and applies the new configurations, until the
number of multicast groups the port has joined reaches the maximum number
configured.
1.6.5 Configuring Multicast Group Replacement
For some special reasons, the number of multicast groups passing through a switch or
Ethernet port may exceed the number configured for the switch or the port. To address
this situation, you can enable the multicast group replacement function on the switch or
certain Ethernet ports. When the number of multicast groups an Ethernet port has
joined reaches the limit,
z
If the multicast group replacement is enabled, the newly joined multicast group
automatically replaces an existing multicast group with the lowest address.
z
If the multicast group replacement is not enabled, new IGMP reports will be
automatically discarded.
I. Configuring multicast group replacement globally
Follow these steps to configure multicast group replacement globally:
To do...
Use the command...
Remarks
Enter system view
system-view
—
