How to check if multicast is enabled cisco. If you use sparse mode additional config is needed but .

How to check if multicast is enabled cisco. Multicast has a concept of Reverse Path Forwarding (RPF) check. May 20, 2021 · #global-address-family ipv4 multicast I get the following message Cannot enter Address-family ipv4 multicast mode because topology (default ipv4 multicast base) multi-topology mode is not enabled. Verifying IP multicast operation in a bidirectional PIM (bidir-PIM) network or a PIM-SM network with a finite or infinite SPT threshold is outside the scope of this module. If you use sparse mode additional config is needed but Nov 27, 2019 · If the switch also supports IGMP snooping, and it's enabled, multicast is only replicated to egress ports where a host has indicated it wants the multicast stream. IGMP Snooping should be enabled on all the switches were MC receivers will be connected. Mar 6, 2019 · Matt To setup multicasting across vlans involves only a few steps 1) enable multicast routing ie. Cisco Multicast Troubleshooting commands show ip pim interface show ip mroute show ip igmp Debug bcast * enable Debug ip igmp show ip igmp groups Aug 15, 2018 · IGMP snooping was developed to limit multicast traffic to only the requesting host or hosts. Sep 19, 2025 · A L2 switch only sends multicast streams from a source device on ports where it sees an IGMP Membership Report (Join) or a Membership Query for the appropriate VLAN. After you hit start on the server and client you will see data flowing. int vlan 20 ip pim dense-mode Note that you can use either sparse mode or dense mode. f5w7bu jrpq ihegl nypj4c 9lt gd81z7 5oc aypm lkv bmac