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Cisco Bug: CSCvh57224 - FTAG disabled trigger Fault F0360 after decommission Spine node

Last Modified

Sep 14, 2019

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

2.2(3p)

Description (partial)

Symptom:
- A fault F0360 is raised for each Forwarding TAG ID disabled.
- Treepol object (fmcast.NodePEp) associated to decommissioned spine is still present in the MIT. 
- In the leaf switches, the FTAG ID's with root in the decomissioned spine are disabled. 

show isis internal mcast routes ftag
IS-IS process: isis_infra
  VRF : default   
FTAG Routes
====================================

System ftag order: NEW

Phantom Spine Capable: NO

 FTAG ID:   0  [Enabled] Cost:(   1/   7/   0)
 ----------------------------------
    Root port: Ethernet1/54.1
    OIF List:

 FTAG ID:   1  [Enabled] Cost:(   1/   1/   0)
 ----------------------------------
    Root port: Ethernet1/54.1
    OIF List:
      Ethernet1/53.4

 FTAG ID:   2  [Enabled] Cost:(   1/   2/   0)
 ----------------------------------
    Root port: Ethernet1/54.1
    OIF List:

 FTAG ID:   3  [Enabled] Cost:(   1/   3/   0)
 ----------------------------------
    Root port: Ethernet1/54.1
    OIF List:

 FTAG ID:   4  [Enabled] Cost:(   1/   4/   0)
 ----------------------------------
    Root port: Ethernet1/54.1
    OIF List:
      Ethernet1/53.4

 FTAG ID:   5  [Enabled] Cost:(   1/   5/   0)
 ----------------------------------
    Root port: Ethernet1/54.1
    OIF List:

 FTAG ID:   6  [Enabled] Cost:(   1/   6/   0)
 ----------------------------------
    Root port: Ethernet1/54.1
    OIF List:

 FTAG ID:   7  [Enabled] Cost:(   1/   1/   0)
 ----------------------------------
    Root port: Ethernet1/53.4
    OIF List:

 FTAG ID:   8  [Enabled] Cost:(   1/   2/   0)
 ----------------------------------
    Root port: Ethernet1/53.4
    OIF List:

 FTAG ID:   9  [Enabled] Cost:(   1/   3/   0)
 ----------------------------------
    Root port: Ethernet1/53.4
    OIF List:
      Ethernet1/54.1

 FTAG ID:  10  [Enabled] Cost:(   1/   4/   0)
 ----------------------------------
    Root port: Ethernet1/53.4
    OIF List:

 FTAG ID:  11  [Enabled] Cost:(   1/   5/   0)
 ----------------------------------
    Root port: Ethernet1/53.4
    OIF List:

 FTAG ID:  12  [Enabled] Cost:(   1/   6/   0)
 ----------------------------------
    Root port: Ethernet1/53.4
    OIF List:
  FTAG ID:  13 [Disabled]
  FTAG ID:  14 [Disabled]
  FTAG ID:  15 [Disabled]

- Deleting the stale Treepol object (fmcast.NodePEp) using Rest-API, does not remove the disable FTAG ID's from the leaves, hence the F0360 instances are not cleared.

Conditions:
Decommission active spine node from controller, and not add it back.
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