API Guide

bfd enable
Enables BFD on all interfaces on the switch.
Syntax
bfd enable
Parameters None
Default BFD is disabled.
Command Mode CONFIGURATION
Usage
Information
Before you configure BFD for static routing or a routing protocol, enable BFD globally on each router in a
BFD session. To globally disable BFD on all interfaces, enter the no bfd enable command.
Example
OS10(config)# bfd enable
Supported
releases
10.4.1.0 or later
bfd interval
Configures parameters for all BFD sessions on the switch.
Syntax
bfd interval 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 number of consecutive packets that can be missed from a BFD
peer before the session state changes to Down, from 3 to 50.
● role {active | passive} — Enter active if the router initiates BFD sessions. Both BFD
peers can be active at the same time. Enter passive if the router does not initiate BFD sessions, and
only responds to a request from an active BFD to initialize a session.
Default
The time interval for sending control packets to BFD peers is 200 milliseconds.
The maximum waiting time for receiving control packets from BFD peers is 200 milliseconds.
The number of consecutive packets that must be received from a BFD peer is 3.
The BFD role is active.
Command Mode CONFIGURATION
Usage
Information
Use this command to configure global BFD session settings. To configure the BFD parameters used in
sessions established with neighbors discovered by an L3 protocol, use the bfd all-neighbors
command. The no version of this command deletes the configured global settings and returns to the
default values.
Example
OS10(config)# bfd interval 250 min_rx 300 multiplier 4 role passive
Supported
releases
10.4.1.0 or later
ip ospf bfd all-neighbors
Enables and configures the default BFD parameters for all OSPFv2 neighbors in this interface.
Syntax
ip ospf bfd all-neighbors [disable|[interval millisec min_rx min_rx
multiplier role {active | passive}]]
568 Layer 3