Layer 3 Routing Commands 1415DVMRP CommandsDell EMC Networking N3000/N3100/N4000 Series SwitchesDistance Vector Multicast Routing Protocol (DVMRP) is a dense modemulticast protocol and is most appropriate for use in networks wherebandwidth is relatively plentiful and there is at least one multicast groupmember in each subnet. DVMRP assumes that all hosts are part of amulticast group until it is informed of multicast group changes. When thedense-mode multicast router is informed of a group membership change, themulticast delivery tree is pruned. DVMRP uses a distributed routingalgorithm to build per-source-group multicast trees. It is also called Broadcastand Prune Multicasting protocol. It dynamically generates per-source-groupmulticast trees using Reverse Path Multicasting. Trees are calculated andupdated dynamically to track membership of individual groups.Commands in this SectionThis section explains the following commands:ip dvmrpUse the ip dvmrp command to set the administrative mode of DVMRP in therouter to active. Enabling DVMRP concurrently enables IGMP/MLD. Usingthe no form of the command sets the administrative mode to inactive anddisables IGMP/MLD.Syntaxip dvmrpno ip dvmrpip dvmrp show ip dvmrp neighborip dvmrp metric show ip dvmrp nexthopshow ip dvmrp show ip dvmrp pruneshow ip dvmrp interface show ip dvmrp route
