vRtrPimNgGrpSrcUstrmRptOvrdeTmr 1.3.6.1.4.1.6527.3.1.2.50.1.9.1.20

The value of vRtrPimNgGrpSrcUstrmRptOvrdeTmr indicates the delay to triggered Join(S,G,rpt) messages to prevent implosions of triggered messages. If vRtrPimNgGrpSrcUstrmRptOvrdeTmr 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).