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Cisco Bug: CSCvv80116 - N9k - lacp vpc-convergence + switchport trunk allowed vlan none - Interface Error Disable

Last Modified

Oct 08, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

9.3(5) 9.3(5.64)

Description (partial)

Symptom:
Following error messages could be observed with N9k/3k switches:
%ETHPORT-5-IF_SEQ_ERROR: Error ("invalid argument to function call") communicating with MTS_SAP_PIXM_LOCAL for opcode MTS_OPC_PIXM_SET_MULT_CBL_VLAN_PORT_STATE (RID_PORT: Ethernet1/10)
%ETHPORT-5-IF_DOWN_ERROR_DISABLED: Interface Ethernet1/10 is down (Error disabled. Reason:invalid argument to function call)

Interface is marked as error disabled due to internal error:
# show int eth1/10
Ethernet1/10 is down (Internal-Fail errDisable)

# show int eth1/10 brief 

--------------------------------------------------------------------------------
Ethernet        VLAN    Type Mode   Status  Reason                 Speed     Port
Interface                                                                    Ch #
--------------------------------------------------------------------------------
Eth1/10         1       eth  trunk  down    Internal-Fail errDisabl  auto(D) 5

Conditions:
NX-OS release 9.3(5), VPC setup with following commands under port-channel interface:
switchport trunk allowed vlan none
lacp vpc-convergence
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