Important Points To Remember; Configure Bfd - Dell S4820T Configuration Manual

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receives a Down status notification from the remote system, the session state on the local system

changes to Init.

Figure 14. Session State Changes

Important Points to Remember

On the S4820T platform, Dell Networking OS supports 128 sessions per stack unit at 200 minimum

transmit and receive intervals with a multiplier of 3, and 64 sessions at 100 minimum transmit and

receive intervals with a multiplier of 4.

Enable BFD on both ends of a link.

Demand mode, authentication, and the Echo function are not supported.

BFD is not supported on multi-hop and virtual links.

Protocol Liveness is supported for routing protocols only.

Dell Networking OS supports only OSPF, OSPFv3, IS-IS, and BGP protocols as BFD clients.

This section contains the following procedures.

Configuring BFD for Physical Ports

Configure BFD for Static Routes

Configure BFD for OSPF

Bidirectional Forwarding Detection (BFD)