Developers Guide

Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000–ON.
9.0.2.0 Introduced on the S6000.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.8.0 Introduced on the S4810.
8.4.1.3 Introduced on the E-Series.
Usage
Information
When you enable a BFD session with a specified BGP neighbor or peer group using the bfd neighbor
command, the default BFD session parameters are used (interval: 200 milliseconds, min_rx: 200
milliseconds, multiplier: 3 packets, and role: active) if you have not specified parameters with the bfd
neighbor command.
When you explicitly enable a BGP neighbor for a BFD session with the bfd neighbor command:
● The neighbor does not inherit the global BFD enable values configured with the bfd neighbor
command or configured for the peer group to which the neighbor belongs.
● The neighbor only inherits the global timer values configured with the bfd neighbor command:
interval, min_rx, and multiplier.
Related
Commands
● neighbor bfd disable — disable a BFD session explicitly with a BGP neighbor or a BGP peer group.
neighbor bfd disable
Explicitly disable a BFD session with a BGP neighbor or a BGP peer group.
Syntax
neighbor {ip-address | ipv6-address | peer-group-name} bfd disable
Parameters
ip-address Enter the IP address of the BGP neighbor that you want to explicitly disable for
BFD sessions in dotted decimal format (A.B.C.D).
peer-group-name Enter the name of the peer group that you want to explicitly disable for BFD
sessions.
Defaults None
Command Modes ROUTER BGP
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
EMC Networking OS Command Line Reference Guide.
Version Description
9.13(0.0) Introduced support for enabling BFD on non-default VRFs for IPv4 BGP, default,
and non-default VRFs for IPv6 BGP on the S3100 series, S3048–ON, S4048–ON,
S4048T-ON, S5000, S6000, S6000–ON, S6010–ON, S6100–ON, C9010, Z9500,
and Z9100–ON.
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100-ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
Bidirectional Forwarding Detection (BFD) 317