Symptom

RP/0/RSP0/CPU0:ASR9001-D#sh run multicast-routing Wed Oct 9 02:18:00.176 EDT multicast-routing ! vrf D address-family ipv4 ssm disable ! ! RP/0/RSP0/CPU0:ASR9001-D#sh pim vrf D group-map Wed Oct 9 02:18:19.327 EDT IP PIM Group Mapping Table (* indicates group mappings being used) (+ indicates BSR group mappings active in MRIB) Group Range Proto Client Groups RP address Info 224.0.1.39/32* DM perm 0 0.0.0.0 224.0.1.40/32* DM perm 0 0.0.0.0 224.0.0.0/24* NO perm 0 0.0.0.0 232.0.0.0/8* SSM config 0 0.0.0.0 <<<<<<<<<<<<<<<<<<< HERE 224.0.0.0/4* SM static 0 0.0.0.0 RPF: Null,0.0.0.0

Conditions

Seen on 6.2.3, 6.1.2 and 5.2.4

Workaround

Toggle ssm disable command: RP/0/RSP0/CPU0:ASR9001-D#conf t Wed Oct 9 02:18:42.569 EDT RP/0/RSP0/CPU0:ASR9001-D(config)#multicast-routing RP/0/RSP0/CPU0:ASR9001-D(config-mcast)# vrf D RP/0/RSP0/CPU0:ASR9001-D(config-mcast-D)# address-family ipv4 RP/0/RSP0/CPU0:ASR9001-D(config-mcast-D-ipv4)# ssm disable RP/0/RSP0/CPU0:ASR9001-D(config-mcast-D-ipv4)#commit Wed Oct 9 02:19:06.408 EDT

Further Problem Description