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Cisco Bug: CSCvv29987 - OFA detected 'OFA Infra DB' fib_mgr Text file busy- backwalk needed on L3IF child objects

Last Modified

Oct 28, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

7.2.12.BASE 7.3.1.BASE

Description (partial)

Scenario 1: Changing L3 interface to L2 and  back causes tracebacks and configuration failures.
Scenario 2: Creating new BD with existing BVI may cause l3if dependencies to no be cleared.

Re: Hitting CSCvu97671 again on 7212 08i image -OFA' detected the 'warning' condition 'OFA Infra DB': Text file busy

CSCvu97671 [Bug-Preview for CSCvu97671] added a pre-delete function to allow for the l3-ac-port SDK object to be deleted before the L3IF was moved to delayed delete, this allowed for the l2if l2-service port SDK object to be created.


In this case, the l3-ac-port deletion is failing due to SDK dependency still existing at the time of deletion. This fails the conversion from L3->L2. It looks similar to CSCvu97671 [Bug-Preview for CSCvu97671] , but it's different due to SDK dependency.


We need to identify what SDK dependency existed during the l3if pre-delete event when the l3-ac-port deletion was attempted.

In your scenario, can you run the following script prior to L3->L2 conversion:
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