Enabling Igmp Snooping; Configuring The Version Of Igmp Snooping - H3C S3100-52P Operation Manual

Operation Manual – Multicast
H3C S3100-52P Ethernet Switch
Configuring Multicast VLAN

3.2.1 Enabling IGMP Snooping

Follow these steps to enable IGMP Snooping:
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 or its corresponding
VLAN interface.
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
Messages.

3.2.2 Configuring the Version of IGMP Snooping

With the development of multicast technologies, IGMPv3 has found increasingly wide
application. In IGMPv3, a host can not only join a specific multicast group but also
explicitly specify to receive or reject the information from a specific multicast source.
Working with PIM-SSM, IGMPv3 enables hosts to join specific multicast sources and
groups directly, greatly simplifying multicast routing protocols and optimizing the
network topology.
Follow these steps to configure the version of IGMP Snooping:
To do... Use the command...
system-view
igmp-snooping enable
vlan vlan-id
igmp-snooping enable
Chapter 3 IGMP Snooping Configuration
Task
Configuring a VLAN Tag for Query
3-6
Remarks
Optional
Remarks
—
Required
By default, IGMP Snooping
is disabled globally.
—
Required
By default, IGMP Snooping
is disabled on all the VLANs.