Preview Tool

Cisco Bug: CSCte95497 - PIM does not match the longest prefix for SSM range

Last Modified

Feb 02, 2017

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)

SSM static-mapping does not happen correctly in certain scenarios. Configured SSM ranges have the override flag enabled in pim, unless 'ssm allow-override' is also configured. When there are overlapping ranges, with the more-specific range for SM and less-specific range for SSM, PIM gives preference to the SSM range, due to the presence of the override flag. However, IGMP does not honor the override flag and always does a longest-prefix lookup to figure out the range for a group address.

This issue will be hit if we have two overlapping ranges, with the less-specific range having the override flag set and the more-specific range having the override flag reset.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.