Connect Additional VMware Cloud Foundation Instances to Cross-Instance Tier-0 Gateway

You turn the standard tier-0 gateway into a cross-instance tier-0 gateway by connecting additional
VMware Cloud Foundation
instances to it. You configure uplink interfaces, BGP, and route redistribution for the additional instances.
  1. In a web browser, log in to Global Manager cluster at https://
    active_gm_vip_fqdn
    /.
  2. Add the additional instance as a location on the tier-0 gateway.
    1. On the NSX Manager main navigation bar, click 
      Networking
      .
    2. In the navigation pane, select
      Tier-0 Gateways
      .
    3. On the Tier-0 Gateway page, click the vertical eclipses for the
      cross-instance_tier0
      gateway and click
      Edit
      .
    4. Click
      Add Location
      and enter the required information.
      Setting
      Value
      Location
      Select the location name of the instance being added.
      Edge Cluster
      Select the Edge cluster name of the instance being added.
    5. Click
      Save
      .
  3. Set interfaces for the instance on the tier-0 gateway.
    1. Expand
      Interfaces
      and click
      Set
      .
    2. Click
      Add interface
      .
    3. Enter a name for the interface and select the instance location.
    4. Set the type to
      External
      and enter the IP address for the interface.
    5. Select the segment that the interface is connected to and the Edge node corresponding to the instance.
    6. Set the MTU to 9000.
    7. Repeat these steps to add three additional interfaces.
  4. Configure BGP neighbors.
    1. Expand BGP and under BGP Neighbors, click
      Set
      .
      You can enable BFD if the network supports it and is configured for BFD.
    1. Click
      Add BGP neighbor
    2. Enter the IP address for the neighbor and select the instance location.
    3. Enter the remote AS and source addresses for the neighbor.
    4. Click
      Timers & Password
      and set the
      Hold Down Time
      to 12 and
      Keep Alive Time
      to 4.
    5. Enter the BGP neighbor password, click
      Save
      , and then click
      Close
      .
    6. Repeat these steps to add another BGP neighbor.
  5. Configure Route Re-Distribution
    1. Expand Route Re-Distribution and next to the location you are adding, click
      Set
      .
    2. In the Set Route Re-distribution dialog box, click
      Add Route-Redistribution
      .
    3. Enter
      default
      as name and, under Route re-distribution, click
      Set
      .
    4. In the Set route redistribution dialog box, select all listed sources and click
      Apply
      .
    5. Click
      Add
      to finish editing the default route redistribution and click
      Apply
      .
    6. Click
      Save
  6. Click
    Close editing
    .