Configure BFD on a Tier-0 Logical Router in Manager Mode

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

Note: In this release, BFD over Virtual Tunnel Interface (VTI) ports is not 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.

Prerequisites

Verify that Manager mode is selected in the NSX Manager user interface. See NSX Manager. If you do not see the Policy and Manager mode buttons, see Configure the User Interface Settings.

Procedure

1. With admin privileges, log in to NSX Manager.
2. Select Networking > Tier-0 Logical Routers.
3. Select the tier-0 logical router.
4. Click the Routing tab and select BFD from the drop-down menu.
5. Click Edit to configure BFD.
6. Click the Status toggle to enable BFD.
   You can optionally change the global BFD properties Receive interval, Transmit interval, and Declare dead interval.
7. (Optional) Click Add under BFD Peers for Static Route Next Hops to add a BFD peer.
   Specify the peer IP address and set the admin status to Enabled. Optionally, you can override the global BFD properties Receive interval, Transmit interval, and Declare dead interval.