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Cisco Bug: CSCum29064 - Unable to sync dual-stack iWAG session to STANDBY

Last Modified

Feb 03, 2017

Products (25)

  • Cisco IOS
  • Cisco ASR 901-6CZ-FS-D Router
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco ASR 901S-4SG-F-D Router
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ASR 901S-2SG-F-D Router
  • Cisco ASR 901S-2SG-F-AH Router
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901-6CZ-FT-A Router
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Known Affected Releases

15.4(3)S

Description (partial) 

Symptom: Syncing dual-stack iWAG session to STANDBY does not occur.
Conditions: This symptom occurs when IPv4 and IPv6 FSOL is received from same client at ISG together (or very less time gap) for a dual-stack session. In this case, the session does not sync to STANDBY for the previous IPv6 FSOL and ISG gets a new IPv4 FSOL.
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