Alcatel-Lucent 6850-48 Network Guide

Configuring BFD

BFD Defaults

OmniSwitch AOS Release 6 Network Configuration Guide

page 30-3

The following table shows the default settings of the configurable BFD parameters.

BFD global status for the switch

Disabled 

Global transmit time interval for BFD 
control packets

100 milliseconds

Global receive time interval for BFD 
control packets.

100 milliseconds

Global operational mode and echo 
status 

Asynchronous mode with the 
echo function enabled

Global BFD echo packet time interval

100 milliseconds

Global Layer 2 hold-down (conver-
gence) timer value.

500 milliseconds

Administrative status of a BFD inter-
face

Disabled 

Transmit time interval for a BFD 
interface.

100 milliseconds

Receive time interval for the BFD 
interface.

100 milliseconds

BFD interface dead interval multi-
plier.

3

Echo time interval for the BFD inter-
face

100 milliseconds

Operational mode and echo status for 
the BFD interface.

Asynchronous mode with 

the echo function enabled.

Layer 2 hold-down (convergence) 
timer value for the BFD interface

500 milliseconds

BFD status for the OSPF protocol 

Disabled

BFD status for an OSPF interface 

Disabled

BFD session status with all neighbors 
of the corresponding interface which 
are greater than or equal to “2-way” 
state

Enabled 

BFD status for the BGP protocol

Disabled

BFD status for BGP neighbors 

Disabled

BFD status for VRRP protocol

Disabled

BFD status for a VRRP tracking pol-
icy. 

Enabled 

BFD status for a static route.

Disabled