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Cisco Bug: CSCur41443 - Query is also sent to successor.

Last Modified

Feb 13, 2018

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases

7.2(0)ZD(0.6)

Description (partial)

Symptom:
After a router received a query from successor, the router also sends a query to successor.

Conditions:
When a new neighborship comes up, router sends startup UPDATE message for all the passive routes and sets a flag dndb_being_sent for all of them but this flag is not cleared.
 
If router receives a query message immediately after above step then it sees dndn_being_flag set and supresses split horizon.
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