Plan the Mapping of the NSX-V Topology to the NSX-T Topology

Review the NSX-V topology and decide how to map it to the NSX-T topology. During the migration, the "Define a Topology" step will prompt you for the mapping.

Specifically, determine how many NSX-T Edge clusters you need and how Edge Service Gateways (ESGs) and Distributed Logical Routers (DLRs) should map to gateways in NSX-T. The northbound ESGs without any L4-L7 services should be skipped. These are usually the ESGs peering with northbound routers and are in ECMP path. If you are using VPN on a northbound ESG, migrating to active-standby tier-0 is recommended. In other cases, migrating the ESGs/DLRs to tier-1 is recommended. An ESG and a DLR can be merged in one mapping entry in the mapping file.

An example of a mapping file that maps ESGs to a tier-0 gateway:

[
  {
    "name":"nsxv-to-nsxt-mapping",
    "v_edges_to_policy_gateways_mappings":[
      {
        "v_edges":[
          "edge-1",
          "edge-2"
         ],
         "policy_gateway_name": "tier0-gateway"
         "policy_gateway_path": "/infra/tier-0s/tier0-gateway"
      }
    ]
  }
]