Multicast Vlan Registration; Layer 3 Multicast Features; Distance Vector Multicast Routing Protocol; Internet Group Management Protocol - Dell PowerEdge M420 Configuration Manual

Dell powerconnect m8024-k user's configuration guide

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Multicast VLAN Registration

MVR is not supported on the PowerConnect M6220.

The Multicast VLAN Registration (MVR) protocol, like IGMP Snooping,

allows a Layer 2 switch to listen to IGMP frames and forward the multicast

traffic only to the receivers that request it. Unlike IGMP Snooping, MVR

allows the switch to listen across different VLANs. MVR uses a dedicated

VLAN, which is called the multicast VLAN, to forward multicast traffic over

the Layer 2 network to the various VLANs that have multicast receivers as

For information about configuring L3 multicast features, see "Managing IPv4

and IPv6 Multicast" on page 1149.

Distance Vector Multicast Routing Protocol (DVMRP) exchanges probe

packets with all DVMRP-enabled routers, establishing two way neighboring

relationships and building a neighbor table. It exchanges report packets and

creates a unicast topology table, which is used to build the multicast routing

table. This multicast route table is then used to route the multicast packets.

The Internet Group Management Protocol (IGMP) is used by IPv4 systems

(hosts and routers) to report their IP multicast group memberships to any

neighboring multicast routers. PowerConnect M6220, M6348, M8024, and

M8024-k switches perform the "multicast router part" of the IGMP protocol,

which means it collects the membership information needed by the active

multicast router.

The IGMP Proxy feature allows the switch to act as a proxy for hosts by

sending IGMP host messages on behalf of the hosts that the switch

discovered through standard IGMP router interfaces.

Switch Features