3com WXR100 3CRWXR10095A User Manual
18
C
ONFIGURING
AND
M
ANAGING
IGMP S
NOOPING
Internet Group Management Protocol (IGMP) snooping controls multicast
traffic on a WX switch by forwarding packets for a multicast group only
on the ports that are connected to members of the group. A multicast
group is a set of IP hosts that receive traffic addressed to a specific Class D
IP address, the group address.
traffic on a WX switch by forwarding packets for a multicast group only
on the ports that are connected to members of the group. A multicast
group is a set of IP hosts that receive traffic addressed to a specific Class D
IP address, the group address.
Overview
The WX switch listens for multicast packets and maintains a table of
multicast groups, as well as their sources and receivers, based on the
traffic. IGMP snooping is enabled by default.
multicast groups, as well as their sources and receivers, based on the
traffic. IGMP snooping is enabled by default.
You can configure IGMP snooping parameters and enable or disable the
feature on an individual VLAN basis.
feature on an individual VLAN basis.
The current software version supports IGMP versions 1 and 2.
Disabling or
Reenabling IGMP
Snooping
Reenabling IGMP
Snooping
IGMP snooping is enabled by default. To disable or reenable the feature,
use the following command:
use the following command:
set igmp {enable | disable} [vlan vlan-id]
If you do not specify a VLAN ID, the change is applied to all VLANs on the
WX switch.
WX switch.