Reference Guide

Martian address 0, Our own AS in AS-PATH 0
Invalid Nexthop 0, Invalid AS-PATH length 0
Wellknown community 0, Locally originated 0
Local host: 20.1.1.2, Local port: 179
Foreign host: 20.1.1.1, Foreign port: 58248
BFD commands
bfd
Enables BFD sessions with specified neighbors.
Syntax
bfd
Parameters None
Default Not configured
Command Mode
ROUTER-NEIGHBOR
ROUTER-TEMPLATE
Usage
Information
● Use the bfd command to configure BFD sessions with a specified neighbor or neighbors which
inherit a BGP template. Use the neighbor {ip-address | ipv6-address} command in
ROUTER-BGP mode to specify the neighbor. Use the template template-name command in
ROUTER-BGP mode to specify a BGP template. Use the no bfd command in ROUTER-NEIGHBOR
mode to disable BFD sessions with a neighbor.
● Use the bfd all-neighbors command to configure L3 protocol-specific BFD parameters for all
BFD sessions between discovered neighbors. The BFD parameters you configure override the global
session parameters configured with the bfd interval command.
Example
OS10(conf)# router bgp 1
OS10(config-router-bgp-1)# neighbor 10.1.1.1
OS10(config-router-neighbor)# bfd
OS10(config-router-neighbor)# no shutdown
OS10(config)# router bgp 300
OS10(config-router-bgp-300)# template ebgppg
OS10(config-router-template)# bfd
OS10(config-router-template)# exit
OS10(config-router-bgp-300)# neighbor 3.1.1.1
OS10(config-router-neighbor)# inherit template ebgppg
OS10(config-router-neighbor)# no shutdown
Supported
releases
10.4.1.0 or later
bfd all-neighbors
Configures the parameters used in all BFD sessions between neighbors discovered by an L3 protocol.
Syntax
bfd all-neighbors [milliseconds min_rx milliseconds multiplier number role
{active | passive}]
Parameters
● interval milliseconds — Enter the time interval for sending control packets to BFD peers,
from 100 to 1000. Dell EMC recommends using more than 100 milliseconds.
● min_rx milliseconds — Enter the maximum waiting time for receiving control packets from BFD
peers, from 100 to 1000. Dell EMC recommends using more than 100 milliseconds.
● multiplier number — Enter the maximum number of consecutive packets that must not be
received from a BFD peer before the session state changes to Down, from 3 to 50.
Layer 3 275