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Cisco Bug: CSCsz60993 - ospf default gateway dropped during DRP Failover

Last Modified

May 14, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

3.6.3.ROUT 3.8.1.ROUT

Description (partial)

On a Cisco router running IOX XR, and configured for OSPF NSR, some self-generated LSA may flap shortly after (D)RP failover is performed.
The LSAs that could be affected include:
- default LSA, if the default origination is enabled
- type 5 LSAs from redistributed prefixes
- type 5 LSAs created from 7>5 translation at the NSSA ABR
- type 3 LSAs created by "summary-prefix"
Problem may happen if the fix for CSCsk70626 is present in the image.
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