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Cisco Bug: CSCvv01445 - Router Crashes when advertised-routes command executed for neighbours

Last Modified

Aug 25, 2020

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

ISR router crashes by executing show command for advertised routes to neighbour.

Execute below command on ISR router the router hangs for some time and then crashes.
MSEE-ISR4351-B#sh bgp vrf OOB neighbors advertised-routes
Even with out VRF also, same observation that the router crashes.
MSEE-ISR4351-A#show bgp neighbors advertised-routes

Steeps to reproduce:
BGP neighborship with or without VRF. (in this example neighbour is
Execute Show command (?show bgp vrf OOB neighbors advertised-routes or ?show bgp neighbors advertised-routes
Router will crash after few minutes of execution of show command.

other observations:
Valid BGP neighbor is required to reproduce.
Any random IP address is enough after advertised-routes.
No need to advertise any routes to reproduce this.
an reproduce With or without VRF.
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Bug Details Include

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