Please consider the following example:
Listener-------f1 SRX---f2---------------Rest of Multicast Network--SRC 22.214.171.124
DENSE MODE CASE:
Suppose SRC is generating packet every 2 msec for group 126.96.36.199
If we isse "clear pim join " on SRX, to flush multicast cache ( that can be seen as show multicast route), will it cause SRX to drop ( 188.8.131.52,184.108.40.206) packet?
Will same be true for SPARSE MODE as well?
Thanks and have a nice weekend!!
when there is no active group members, system would send prune msg upstream to its neighbor. clearing those joins shouldn't ideally affect. The command is not only "clear pim join" but its as follows:
> clear pim join ? Possible completions: <group> IP address and optional prefix length of group all Clear all PIM join/prune states bidirectional Clear only bidirectional PIM entries dense Clear only PIM dense-mode entries exact Clear only group that matches exactly inet Clear IPv4 join/prune state inet6 Clear IPv6 join/prune state instance Name of instance logical-system Name of logical system, or 'all' rp IP address and optional prefix length of rendezvous point sg Clear only S,G entries source IP address and optional prefix length of source sparse Clear only PIM sparse-mode entries (including SSM) star-g Clear only *,G entries
So clear the group that is inactive, not all to be safe.
Can be used for spare mode as well followed group address.