Unable to Perform NVDS to VDS Migration Due to LLDP Profile Mismatch

Products

• VMware NSX

Issue/Introduction

Migration from NVDS to VDS fails because prechecks detect an LLDP profile mismatch among transport nodes.

{
    "precheck_id": "########-####-####-####-############",
    "precheck_status": "PENDING_TOPOLOGY",
    "precheck_issue": [
        {
            "component": "LLDP profile",
            "objid": "<dvSwitch Object>",
            "warning": "Found inconsistent profiles: [########-####-####-####-##########ab, ########-####-####-####-##########cd]. LLDP profile mismatch. SendEnabled mismatch. ",
            "recommendation": "Keep profiles consistent among transport nodes in the same NVDS",
            "_protection": "NOT_PROTECTED"
        }
    ]
}

Environment

VMware NSX

VMware NSX-T Data Center

Cause

The precheck error message received indicates that some ESXi hosts or Transport nodes are configured with NVDS but are using a different LLDP profile compared to other ESXi hosts or Transport nodes.

Resolution

To resolve this issue, follow these steps:

1. Verify LLDP Profile Consistency:

   • Ensure LLDP profiles are uniform across all transport nodes within the same NVDS.

   • Align LLDP settings across nodes by selecting either LLDP [Send Packet Disabled] or LLDP [Send Packet Enabled] to prevent mismatches.

   • If no explicit LLDP profile is assigned, the default profile will apply to both NIOC and LLDP settings.

2. Retrieve and Validate LLDP Profile Settings:

   • Execute the following API command on the ESXi transport node to check the current LLDP profile settings:

     GET https://<NSX Manager>/api/v1/transport-nodes/<ESXi transport node UUID>
     

   • Review configuration details to ensure alignment before proceeding with migration.

3. Run Migration Pre-Check:

   • Re-run the NVDS migration pre-check using the following CLI command:

     vds-migrate precheck
     

   • Follow Option 2 in the referenced documentation to validate migration readiness.

Reference: For further details, refer to the official documentation: Migrate Host Switch to vSphere Distributed Switch