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Cisco Bug: CSCuo11084 - VPLS BGP Inter AS Option B - Loss of Connectivity after ASBR SSO

Last Modified

Aug 14, 2017

Products (21)

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


Description (partial)

VPLS BGP Inter-AS Option B in redundant RP ASBR setup.  After ASBR SSO there will be loss of connectivity.  Label being used by L2VPN VPLS will not be able to retained.

VPLS BGP Inter-AS Option B
ASBR is in redundant RP setup.
ASBR is doing SSO.
After SSO, expect BGP and L2VPN VPLS no traffic loss, but it has.
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