Reference Guide

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 must not be received 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 the bfd interval 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. To remove the configured global settings and return to the default values,
enter the no version of the command.
Example
OS10(config)# bfd interval 250 min_rx 300 multiplier 4 role passive
Supported
releases
10.4.1.0 or later
show bfd neighbors
Displays information about BFD neighbors from all interfaces using the default VRF.
Syntax
show bfd neighbors [detail]
Parameters detail — (Optional) View detailed information about BFD neighbors.
Default Not configured
Command Mode EXEC
Usage
Information
Use the show bfd neighbors command to verify that a BFD session between neighbors is up using the
default VRF instance. Enter the details parameter to view the BFD session parameters.
Example
OS10# show bfd neighbors
* - Active session role
----------------------------------------------------------------------------
LocalAddr RemoteAddr Interface State Rx-int Tx-int Mult VRF Clients
----------------------------------------------------------------------------
* 150.150.1.2 150.150.1.1 vlan10 up 1000 1000 5 default bgp
OS10# show bfd neighbors detail
Session Discriminator: 1
Layer 3 277