tmnxPimSnpgGrpSrcUstrmRptOvdTmr
1.3.6.1.4.1.6527.3.1.2.53.1.3.1.13
The value of tmnxPimSnpgGrpSrcUstrmRptOvdTmr indicates the delay to
triggered Join(S,G,rpt) messages to prevent implosions of triggered
messages.
If tmnxPimSnpgGrpSrcUstrmRptOvdTmr has a non-zero value, it means
that the router was in 'notPruned' state and it saw a Prune(S,G,rpt)
message being sent to RPF'(S,G,rpt).
If the router sees a Join(S,G,rpt) override message being sent by
some other router on the LAN while the timer is still non-zero,
it simply cancels the override timer. If it does not see a
Join(S,G,rpt) message, then on expiry of the override timer, it
sends it's own Join(S,G,rpt) message to RPF'(S,G,rpt). A similar
scenario exists when RPF'(S,G,rpt) changes to become equal to
RPF'(*,G).