Igmp Snooping Configuration - 3Com 4200G 12-Port Configuration Manual

252 C 29: IGMP S
HAPTER
IGMP Snooping
Configuration
Enabling IGMP Snooping
C
NOOPING ONFIGURATION
The following sections describe the IGMP Snooping configuration tasks.
Enabling IGMP Snooping
■
Configuring Timers
■
Enabling IGMP Fast Leave Processing
■
Configuring IGMP Snooping Filtering ACL
■
Configuring to Limit Port Multicast Group Number
■
Configuring Multicast VLAN
■
Among them, enabling IGMP Snooping is required, while others are optional (you can
determine whether or not to perform these tasks according to your needs).
You can use the command here to enable IGMP Snooping so that it can establish and
maintain MAC multicast forwarding tables at layer 2.
Table 222 Enable IGMP Snooping
Operation
Enter system view
Enable IGMP Snooping
globally
Enter VLAN view
Enable IGMP Snooping
on the VLAN
CAUTION: Although both Layer 2 and Layer 3 multicast protocols can run on the
same switch simultaneously, they cannot run simultaneously on a VLAN and its
corresponding VLAN interface.
IGMP Snooping functions on a VLAN only when it is first enabled globally in system
view and then enabled in the VLAN view.
Command
system-view
igmp-snooping enable
vlan vlan-id
igmp-snooping enable
Description
—
Required
IGMP Snooping is
disabled globally.
—
Required
By default, IGMP
Snooping is disabled on
the VLAN.