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Cisco Bug: CSCvt42295 - "cef adjacency route override rib" OR fib_mgr process restart causes IPv6 traffic loss

Last Modified

Sep 02, 2020

Products (11)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco ASR 9910 Router
  • Cisco ASR 9922 Router
  • Cisco IOS XR Software
  • Cisco ASR 9010 Router
  • Cisco ASR 9904 Router
  • Cisco ASR 9006 Router
  • Cisco ASR 9901 Router
  • Cisco ASR 9001 Router
  • Cisco ASR 9912 Router
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Known Affected Releases


Description (partial)

Shared MPLS adjacency between IPv4 and IPv6 causes IPv6 traffic loss.

For example, ping IPv6 destination stops working

1 - Both IIPv4 and IPv6 over MPLS are configured

2 - either apply "cef adjacency route override rib" config CLI or process restart fib_mgr

Related Community Discussions

ASR9k VMs: disks and files
Dear all, I experienced a crash which affected one of the RSPs of our ASR9906. Following the crash, a crash file was created which is located within the disk space of the System Admin VM, in the folder cisco_support/. My question is: how do I take out this crash file (which I would like to send to Cisco)? From my network management station I'm not able to reach the disk space of the System Admin VM, I seem to reach only the XR VM disk space. I tried with SCP. Is there a way to transfer a file from ...
Latest activity: May 12, 2020
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