Enabling Igmp Snooping; Configuring The Version Of Igmp Snooping - H3C S5100-SI Operation Manual

Enabling IGMP Snooping

Table 2-3 Enable IGMP Snooping
Operation
Enter system view
Enable IGMP Snooping
globally
Enter VLAN view
Enable IGMP Snooping on the
VLAN
Before enabling IGMP Snooping in a VLAN, be sure to enable IGMP Snooping globally in system
view; otherwise the IGMP Snooping settings will not take effect.
If IGMP Snooping and VLAN VPN are enabled on a VLAN at the same time, IGMP queries are
likely to fail to pass the VLAN. You can solve this problem by configuring VLAN tags for queries.
For details, see

Configuring the Version of IGMP Snooping

By configuring an IGMP snooping version, you actually configure the version of IGMP messages that
IGMP snooping can process.
IGMP snooping version 2 can process IGMPv1 and IGMPv2 messages, but not IGMPv3 messages,
which will be flooded in the VLAN.
IGMP snooping version 3 can process IGMPv1, IGMPv2 and IGMPv3 messages.
Table 2-4 Configure the version of IGMP Snooping
Operation
Enter system view
Enter VLAN view
Configure the version of IGMP
Snooping
system-view
igmp-snooping enable
vlan vlan-id
igmp-snooping enable
0 Configuring a VLAN Tag for Query
system-view
vlan vlan-id
igmp-snooping version
version-number
Command
Messages.
Command
2-5
Remarks
—
Required
By default, IGMP Snooping is
disabled globally.
—
Required
By default, IGMP Snooping is
disabled on all the VLANs.
Remarks
—
—
Optional
The default IGMP Snooping
version is version 2.