Concept Guide

• Passive — The passive system does not initiate a session. It only responds to a
request for session initialization from the active system.
The default is active.
Defaults See Parameters.
Command Modes
ROUTER OSPF
ROUTER OSPFv3
ROUTER BGP
ROUTER ISIS
Command History
This guide is platform-specic. 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.
9.11(2.1P1)
Introduced support for enabling BFD on non-default VRFs for OSPFv2 on all the
remaining Dell EMC Networking OS platforms.
Introduced support for enabling BFD on non-default VRFs for OSPFv3 on all the Dell
EMC Networking OS platforms.
9.10(0.2) Introduced support for enabling BFD on non-default VRFs for OSPFv2 on the S3048–
ON, S4048–ON, S4048T-ON, S6010–ON, Z9100–ON, and S6100–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.
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.
9.2(1.0) Introduced on the Z9500.
9.2.(0.0) Introduced BFD for VRRP and OSPFv3 on Z9000, S4810, and S4820T.
9.0.0.0 Introduced BFD for BGP on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.8.0 Introduced BFD for BGP on the S4810.
8.4.1.3 Introduced BFD for BGP on the E-Series.
Bidirectional Forwarding Detection (BFD) 277