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Cisco Bug: CSCuq49073 - LDP breaks after defaulting an interface

Last Modified

Nov 27, 2020

Products (2)

  • Cisco 2600 Series Multiservice Platforms
  • Cisco 2600 Series Multiservice Platforms

Known Affected Releases

15.3(3)S 15.3(3)S3 15.5(1)S

Description (partial)

LDP will not run on Interface with LDP IGP sync enabled after defaulting an interface with the command - "default int <int name>". Debugs will show up packets sent/received but mpls neighbor will NOT be forming.

'sho mpls ldp disc' would NOT show the interface name.

3600X-2(config-if)#do sho mpls ldp disc
Local LDP Identifier:
    Discovery Sources: ---<< nothing
    Targeted Hellos: -> (ldp): active/passive, xmit/recv
            LDP Id:

LDP IGP sync MUST to be enabled and the trigger should be defaulting an interface config
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