Command Manual (For Soliton) – Multicast
H3C S3100 Series Ethernet Switches
Chapter 1 IGMP Snooping Configuration
Commands
1-9
Note:
z
To prevent bursting traffic in the network or performance deterioration of the device
caused by excessive multicast groups, you can set the maximum number of
multicast groups that the switch should process.
z
When the number of multicast groups exceeds the configured limit, the switch
removes its multicast forwarding entries starting from the oldest one. In this case,
the multicast packets for the removed multicast group(s) will be flooded in the VLAN
as unknown multicast packets. As a result, non-member ports can receive multicast
packets within a period of time.
Examples
# Configure to allow Ethernet 1/0/1 in VLAN 2 to join a maximum of 200 multicast
groups.
<Sysname>system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] igmp-snooping group-limit 200 vlan 2
1.1.8 igmp-snooping group-policy
Syntax
igmp-snooping group-policy
acl-number
[
vlan
vlan-list
]
undo igmp-snooping group-policy
[
vlan
vlan-list
]
View
System view, Ethernet port view
Parameters
acl-number
: Basic ACL number, in the range of 2000 to 2999.
vlan
vlan-list
: Specifies a VLAN list. With the
vlan-list
argument, you can provide one or
more individual VLAN IDs (in the form of
vlan-id
) and/or one or more VLAN ID ranges
(in the form of
vlan-id1 to
vlan-id2
, where
vlan-id2
must be greater than
vlan-id1
). The
effective range for a VLAN ID is 1 to 4094 and the total number of individual VLANs plus
VLAN ranges cannot exceed 10.
Description
Use the
igmp-snooping group-policy
command to configure a multicast group filter.
Use the
undo
igmp-snooping group-policy
command to remove the configured
multicast group filter.