1138 Multicast Commandsmandatory. Discovering the local domain-name server is the intended useof multicast messages on remote networks when there is less than oneserver per network.• Applications used for datacasting: Since multimedia transmission hasbecome increasingly popular, multicast transmission use has increased.Multicast transmission may be used to efficiently accommodate this typeof communication. For instance, the audio and video signals are captured,compressed and transmitted to a group of receiving stations. Instead ofusing a set of point-to-point connections between the participating nodes,multicasting can be used for distribution of the multimedia data to thereceivers. The participating stations are free to join or leave an audio-castor a video-cast as needed. The variable membership maintenance ismanaged efficiently through multicasting.Commands in this ChapterThis chapter explains the following commands:clear ip mrouteUse this command to selectively clear IPv4 multicast entries from the cache.clear ip mroute ip pim dense-mode show ip multicast show ip mroute staticip mcast boundary ip pim dr-priority show ip multicast show ip pimip mroute ip pim hello-intervalshow ip pimboundaryshow ip pim bsr-routerip multicast-routing ip pim join-prune-intervalshow ip multicastinterfaceshow ip pim interfaceip multicast ttl-thresholdip pim rp-address show ip mroute show ip pim neighborip pim ip pim rp-candidate show ip mroutegroupshow ip pim rp haship pim bsr-border ip pim sparse-mode show ip mroutesourceshow ip pim rpmappingip pim bsr-candidateip pim ssm – –
