API Guide

● 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.
● role {active | passive} — Enter active if the router initiates BFD sessions. Both BFD
peers can be active simultaneously. 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 CONFIG
Usage
Information
● Use this command to enable or disable BFD for all the configured IPv6 static routes for the specified
VRF. If you do not specify a VRF name, the command is applicable for the default VRF.
The no version of this command disables BFD on an IPv6 static route.
Example
OS10(config)# ipv6 route bfd interval 250 min_rx 250 multiplier 4 role
active
Supported
releases
10.4.2E or later
show bfd neighbors
Displays information about BFD neighbors from all interfaces using the default VRF.
Syntax
show bfd neighbors [detail | interface]
Parameters
● detail — (Optional) View detailed information about BFD neighbors.
● active — (Optional) View information about the active BFD neighbors whose state is up.
● interface interface-type — (Optional) Enter one of the following interface types:
○ ethernet node/slot/port[:subport] — Displays Ethernet interface information.
○ port-channel id-number — Display port channel interface IDs, from 1 to 128.
○ vlan vlan-id — Displays the VLAN interface number, from 1 to 4093.
Default Not configured
Command Mode EXEC
Usage
Information
Use this command to verify that a BFD session between neighbors is up using the default VRF instance. Use the detail parameter to
view the BFD session parameters.
Example
OS10# show bfd neighbors
* - Active session role
------------------------------------------------------------------------------------------------
LocalAddr RemoteAddr Interface State RxInt TxInt Mult VRF Clients
------------------------------------------------------------------------------------------------
* 100.100.1.1 100.100.1.2 ethernet1/1/26:1 up 200 200 3 red ospfv2
* 100.100.3.1 100.100.3.2 ethernet1/1/26:3 up 200 200 3 default ospfv2
* 200.1.1.2 200.1.1.1 vlan102 up 200 200 3 black bgp
* 200.1.5.2 200.1.5.1 vlan105 up 200 200 3 default ospfv2
* 200.1.11.2 200.1.11.1 vlan111 up 200 200 3 green rtmv4
* 200.1.12.2 200.1.12.1 vlan112 up 200 200 3 default rtmv4
* 201.1.1.2 201.1.1.1 vlan101 up 200 200 3 green ospfv2
* 201.1.1.2 201.1.1.1 vlan301 down 1000 1000 3 default bgp
* 201.1.2.2 201.1.2.1 vlan302 down 1000 1000 3 default bgp
* 201.1.3.2 201.1.3.1 vlan303 down 1000 1000 3 default bgp
* 201.1.4.2 201.1.4.1 vlan304 down 1000 1000 3 default bgp
Layer 3 571