Imagine you have a ring of routers, all of which are routing multicast with PIM Sparse mode, pretend there's a single Rendevouz Point (RP) "Router A" for any multicast on 184.108.40.206/24. If a stream with the address 220.127.116.11 is then injected into this ring, what is the expected behavior?
If there is no RP for the second multicast group, the new multicast stream will not be routed because the routers have no place to send the stream.
Based on the RP configuration in your previous question:
ip pim autorp listener ip pim send-rp-announce Loopback0 scope 12 group-list 1 ip pim send-rp-discovery scope 12 ! access-list 1 permit 18.104.22.168 0.0.0.255 !
this RP will not be an RP for your new stream.
Your new stream will need an RP and an RP mapping agent for that stream. It doesn't need to be the same RP as for the first stream. You could change the ACL on the RP to specifically announce the RP for the new stream:
access-list 1 permit 22.214.171.124 0.0.0.255 access-list 1 permit 126.96.36.199 0.0.0.0
or you could expand the existing range on the ACL from a
/24 to include the new stream:
access-list 1 permit 188.8.131.52 0.255.255.255
or you can manually set the RP address on each router:
access-list 1 permit 184.108.40.206 0.0.0.0 ip pim rp-address <rp ip address> 1