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Cisco Bug: CSCur83427 - BGP flapping after change route-policy to send FULL routes

Last Modified

May 14, 2018

Products (25)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco CRS-1 Line Card Chassis (Dual)
  • Cisco CRS-X 8-Slot Single-Shelf System
  • Cisco CRS-1 Line Card Chassis (Multi)
  • Cisco CRS-X Multishelf System
  • Cisco CRS-3 Multishelf System
  • Cisco NCS 6008 - 8-Slot Chassis
  • Cisco CRS-1 16-Slot Line Card Chassis
  • Cisco IOS XR Software
  • Cisco ASR 9922 Router
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Known Affected Releases

5.2.3.ROUT 5.3.0.BASE

Description (partial)

BGP sessions are getting flapped when peer is sending the notification that illegal network data is received

RP/0/RSP0/CPU0:Nov 20 22:45:01.060 : bgp[1041]: %ROUTING-BGP-5-ADJCHANGE : neighbor Down - BGP Notification sent, illegal network (VRF: BPH71TT301) (AS: 65060) 
When NSR is enabled and data received by the TCP is large
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