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Cisco Bug: CSCvv89399 - Flogi rejected with reason as Nested NPV connectivity is not supported

Last Modified

Oct 24, 2020

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

4.0(4i)B

Description (partial)

Symptom:
Server FLOGI is being dropped in FI with following or similar errors:

`show npv internal errors`

    [118] S(0,vfc864) Nested NPV Validation failed(Nested NPV connectivity is not supported) for FLOGI with fWWN: 20:b0:00:25:b5:00:00:11, nWWN: 20:00:00:25:b5:00:00:12, sWWN from nWWN: 20:00:00:25:b5:00:00:11, sWWN from fWWN: 20:00:00:25:b5:00:00:11 on server interface: vfc864

Conditions:
FI is in NPV mode, and this is only for certain combination of PWWN/NWWN confirming to following formula:
(PWWN & !(FF)) is same as (NWWN - 1)

Example: PWWN: 20:00:00:25:b5:00:00:06 and NWWN: 20:00:00:25:b5:00:00:01

Here, (PWWN & !(FF)) will be 20:00:00:25:b5:00:00:00 
and (NWWN - 1) will be 20:00:00:25:b5:00:00:00 as well
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