Symptom

When PIM is enabled for a Layer 3 bridge domain and then disabled followed by IGMP snooping learning an mrouter port, COOP is not updated that the leaf switch is an mrouter for the bridge domain.

Conditions

-Configure a layer 3 bridge domain. -Enable PIM and then disable PIM. -If a PIM hello or IGMP query message is received on a leaf switch, IGMP snooping programs an mrouter port, but COOP is not updated.

Workaround

Disable and then reenable IGMP snooping for the bridge domain.

Further Problem Description