BFD (Bidirectional Forwarding Detection) is a protocol that can detect forwarding path failures.

BFD can back up sessions for BGP and static routes.

Note:

In NSX 4.0.0.1, only IPv4 is supported. Starting with NSX 4.0.1.1, both IPv4 and IPv6 are supported.

Caution: Note the following scenarios when there are connection failures involving BGP or BFD:
  • With only BGP configured, if all BGP neighbors go down, the service router's state will be down.
  • With only BFD configured, if all BFD neighbors go down, the service router's state will be down.
  • With BGP and BFD configured, if all BGP and BFD neighbors go down, the service router's state will be down.
  • With BGP and static routes configured, if all BGP neighbors go down, the service router's state will be down.
  • With only static routes configured, the service router's state will always be up unless the node is experiencing a failure or in a maintenance mode.

For more information about BGP, see Configure BGP in NSX+.

For more information about static routes, see Configure an NSX+ Static Route.

Procedure

  1. Open the instance page.

    Skip the following sub-steps if the instance page is open.

    1. Log in to the VMware Cloud Console at https://console.cloud.vmware.com.
      The VMware Cloud Services home page displays the services available to your organization.
    2. Under My Services, go to the NSX+ card and select Launch Service.
    3. Select Global and select the instance to manage.
  2. Select Networking > Tier-0 Gateways.
  3. From the View drop-down menu, select NSX+ Tier-0 Gateways.
  4. To edit a tier-0 gateway, click the menu icon (three dots) and select Edit.
  5. Click Routing and Set for Static Route BFD Peer.
  6. Click Add Static Route BFD Peer.
  7. Select a BFD profile. See Add an NSX+ BFD Profile.
  8. Enter the peer IP address and optionally the source addresses.
  9. Click Save.