Symptom
An IGMPv3 leave causes multicast route OIL to be deleted even when there is an existing receiver subscribed to the group. Multicast traffic interrupted until the existing receivers send a report in response to a general query.
ACI_LEAF# show ip mroute 232.128.4.4 vrf ACI-TENANT:VRF
IP Multicast Routing Table for VRF "ACI-TENANT:VRF"
(10.148.4.114/32, 232.128.4.4/32), uptime: 00:14:59, ip pim
Incoming interface: Tunnel30, RPF nbr: 10.15.80.65
Outgoing interface list: (count: 0) >>>>>>>>>> GONE
Conditions
The IGMPv3 leave is part of a report that also includes join and leaves for other groups.
