How is a *,G multicast entry created, and how to clear it.
I am troubleshooting a multicast problem we are having and am using Microsoft's mcast.exe to generate a multicast stream. the group address I am using is 126.96.36.199. I have PIM sparse-mode configed on all L3 interfaces and am using Anycast-RP with MSDP between two RP's.
First questions is: If I just start up the mcast.exe on the sending PC, and don't have a receiving client - no one requesting to join the group - does a *.G entry for 188.8.131.52 get built at all?
This output shows a *,G entry for 184.108.40.206, but no clients are requesting the group at this point. The client that did join the group has been shut down for over 24 hours.
ACN-RT7604A-MDF#sh ip mroute 220.127.116.11
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report,
Z - Multicast Tunnel, z - MDT-data group sender,
Y - Joined MDT-data group, y - Sending to MDT-data group
V - RD & Vector, v - Vector
Outgoing interface flags: H - Hardware switched, A - Assert winner
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 18.104.22.168), 1d20h/00:03:14, RP 22.214.171.124, flags: S
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