Cisco Bug: CSCtb75413 - 7600 - Router stops generating IGMP Query messages for 4 minutes
Aug 18, 2017
- Cisco IOS
Known Affected Releases
Symptom: IGMP membership is lost for multiple groups on multiple interfaces. After a few minutes, membership is reestablished. Hosts are observing loss of multicast streams during the loss of membership. Conditions: This issue will be seen only when the SSM mapping is enabled and when the DNS lookup for the SSM source mapping fails due to the unavailability of the DNS server.
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