Users Guide

Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.10.0 Introduced on the S4810.
8.2.1.0 Introduced on the E-Series.
7.6.1.0 Introduced on the C-Series.
7.5.1.0 Added support for VLAN and port-channel interfaces on the E-Series.
Related
Commands
• show bfd neighbors — display the BFD neighbor information on all interfaces or a specified interface.
bfd protocol-liveness
Enable the BFD protocol liveness feature.
Syntax
bfd protocol-liveness
Defaults Disabled
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.2(1.0) Introduced on the Z9500.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.10.0 Introduced on the S4810.
7.4.1.0 Introduced on the E-Series.
Usage Information Protocol Liveness is a feature that notifies the BFD Manager when a client protocol (for example, OSPF
and ISIS) is disabled. When a client is disabled, all BFD sessions for that protocol are torn down.
Neighbors on the remote system receive an Admin Down control packet and are placed in the Down
state. Peer routers might take corrective action by choosing alternative paths for the routes that originally
pointed to this router.
Bidirectional Forwarding Detection (BFD) 324