https://community.extremenetworks.com/t5/extremeswitching-exos-switch/identifying-mcast-streams-on-the-network/m-p/87447#M20849 "show mcast cache" will display the groups and the senders of those groups. Tue, 17 Sep 2019 19:51:35 GMT BradP 2019-09-17T19:51:35Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/identifying-mcast-streams-on-the-network/m-p/87446#M20848 I have a large network where traditionally we have used a single RP with 224.0.0.0/4 .<BR /> Traditionally we have allowed any client to add an Mcast stream and this has always used the configured RP point with the catch all rule.<BR /> <BR /> We have notes a massive increase in systems using mcast , as a management and operational tool , that don't need the mcast RP and if they do ( AV for example ) flood the uplinks to the cores.<BR /> <BR /> I would like a simple command , or group of commands that I could run on our cores , that would display , the source and the mcast IP address , so that we can start managing the mcast streams and modify teh RP " catch all " to more specific addesses , and or configure specific RP's for specific streams Tue, 17 Sep 2019 17:24:15 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/identifying-mcast-streams-on-the-network/m-p/87446#M20848 Rod_Robertson 2019-09-17T17:24:15Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/identifying-mcast-streams-on-the-network/m-p/87447#M20849 "show mcast cache" will display the groups and the senders of those groups. Tue, 17 Sep 2019 19:51:35 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/identifying-mcast-streams-on-the-network/m-p/87447#M20849 BradP 2019-09-17T19:51:35Z