IGMP settings

The Internet Group Management Protocol (IGMP) snooping feature allows interconnects or VLAN interfaces to analyze the IGMP IP multicast membership activities and configure hardware layer 2 switching behavior of multicast traffic to optimize network resource usage. Currently, IGMP v1, v2 (RFC 2236), and IGMPv3 are supported.

You can enable IGMP snooping on:

  • All the interconnects.

  • The specific VLAN tagged network.

  • A range of VLAN tagged networks associated with the logical interconnect.

IGMP idle timeout interval

IGMP idle timeout interval is the Group Membership Interval value, as specified by the IGMP v2 specification (RFC 2236).

For optimum network resource usage, set the timeout interval to match your network multicast router settings.

Data type:

Numeric; unit of measure is seconds.

Valid range: 1-3600 seconds.

Default value:

260

Required:

Yes, if IGMP snooping is enabled.

IGMP Multicast VLAN

IGMP Multicast VLAN (MVLAN) provides an efficient distribution of multicast streams on layer 2 networks. MVLAN reduces the amount of bandwidth required for forwarding multicast traffic between the interconnect and upstream routers. The Multicast VLANs option is disabled by default on the interconnects.

You can add MVLANs from either the Logical Interconnects or Logical Interconnect Groups screen.