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Cisco Bug: CSCvt50045 - BGP keeps down and TCP SYN fail with NPU Exception L_RSV_ERROR_API_eg_ifacl_no_tcam_result

Last Modified

Sep 17, 2020

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

21.14.2

Description (partial)

Symptom:
It looks like during the MIO replacement process , one of the BGP peer went down and never came up.
MIO switchover caused the fault moved from one peer to another .

Tan-trace shows 
@@@@@@@ Exception: Error Code 1 = 4 (Discard)
@@@@@@@ Error Code 2 = 21 (eg_ifacl_no_tcam_result)


Problem was resolved after removing and adding back the ACL from the interface . 
This cdets is opened to find the RCA and fix .

Conditions:
It looks like during the MIO replacement process , one of the BGP peer went down and never came up.
MIO switchover caused the fault moved from one peer to another .

Tan-trace shows 
@@@@@@@ Exception: Error Code 1 = 4 (Discard)
@@@@@@@ Error Code 2 = 21 (eg_ifacl_no_tcam_result)


Problem was resolved after removing and adding back the ACL from the interface . 
This cdets is opened to find the RCA and fix .
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
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