Description

With RPF-vector TLV PIM prune message might not be sent out of upstream interface when corresponding prune message received from last downstream interface (i.e. S,G state needs to be removed)

Please refer to PR1819741

Symptoms

The problem can be seen when following conditions are met:
  • Address in RPF-vector TLV is reachable via interface X (that is the upstream interface)
  • There is a route present towards the Source (could be a default route) via interface Y
  • Prune is received for the S,G from downstream (S,G needs to be removed)
PIM Join state for the S,G will remain on the upstream neighbor, since Prune was not sent.
This state should eventually times out and gets deleted.

Solution

This issue is fixed in the Junos Releases listed in  PR1819741

Modification History

2024-07-18 : Article Created