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Cisco Bug: CSCul73831 - OSPFv3 LSA update does not get retransmitted if nsr is enabled

Last Modified

May 11, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

4.3.1.ROUT 5.2.0.BASE

Description (partial)

OSPFv3 router may not have the latest version of an LSA in the database.
This may lead to various failures - routes missing in RIB, routes present in RIB while it should not be there, etc.

The problem only happen when NSR is enabled in OSPF configuration.
Problem happens when an LSA update does not get received properly  (due to CRC error, packet drop, min-arrival LSA interval being hit, etc), and has to be retransmitted.
The problem is only present in releases containing the fix CSCtx48538.
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