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Cisco Bug: CSCvs56255 - Crash on BGP NSAP address-family when adding CLNS next-hop route-map

Last Modified

Sep 30, 2020

Products (8)

  • Cisco IOS
  • Cisco 4221 Integrated Services Router
  • Cisco 4331 Integrated Services Router
  • Cisco 4321 Integrated Services Router
  • Cisco 4431 Integrated Services Router
  • Cisco 4351 Integrated Services Router
  • Cisco 4451-X Integrated Services Router
  • Cisco Cloud Services Router 1000V

Known Affected Releases


Description (partial)

Crash of IOSd due to BGP Router failure:

Exception to IOS Thread:
Frame pointer 0x7F5F729844E0, PC = 0x55AE787091B5

UNIX-EXT-SIGNAL: Segmentation fault(11), Process = BGP Router

Configure the route-map for CLNS next-hop immediately after BGP was configured and neighbors are coming up (example):

router bgp 1
 address-family nsap
   neighbor iBGP-peers route-map RMAP out

route-map RMAP permit 10
 set clns next-hop x.x.x.x.x
clns route x.x discard
clns route x.x.x.x.x discard
clns route x.x.x.x.x discard
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Related Community Discussions
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