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Cisco Bug: CSCtb75413 - 7600 - Router stops generating IGMP Query messages for 4 minutes

Last Modified

Aug 18, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

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.

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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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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