2021-01-12 21:13:59 +01:00

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.. include:: /_include/need_improvement.txt
.. _routing-bfd:
###
BFD
###
:abbr:`BFD (Bidirectional Forwarding Detection)` is described and extended by
the following RFCs: :rfc:`5880`, :rfc:`5881` and :rfc:`5883`.
Configure BFD
=============
.. cfgcmd:: set protocols bfd peer <address>
Set BFD peer IPv4 address or IPv6 address
.. cfgcmd:: set protocols bfd peer <address> echo-mode
Enables the echo transmission mode
.. cfgcmd:: set protocols bfd peer <address> multihop
Allow this BFD peer to not be directly connected
.. cfgcmd:: set protocols bfd peer <address> source
[address <address> | interface <interface>]
Bind listener to specifid interface/address, mandatory for IPv6
.. cfgcmd:: set protocols bfd peer <address> interval echo-interval <10-60000>
The minimal echo receive transmission interval that this system is
capable of handling
.. cfgcmd:: set protocols bfd peer <address> interval multiplier <2-255>
Remote transmission interval will be multiplied by this value
.. cfgcmd:: set protocols bfd peer <address> interval
[receive | transmit] <10-60000>
Interval in milliseconds
.. cfgcmd:: set protocols bfd peer <address> shutdown
Disable a BFD peer
Enable BFD in BGP
-----------------
.. cfgcmd:: set protocols bgp <asn> neighbor <address> bfd
Enable BFD on a single BGP neighbor
.. cfgcmd:: set protocols bgp <asn> peer-group <group> bfd
Enable BFD on a BGP peer group
Enable BFD in OSPF
------------------
.. cfgcmd:: set interfaces ethernet <interface> ip ospf bfd
Enable BFD for OSPF on a interface
.. cfgcmd:: set interfaces ethernet <interface> ipv6 ospfv3 bfd
Enable BFD for OSPFv3 on a interface
Enable BFD in ISIS
------------------
.. cfgcmd:: set protocols isis <name> interface <interface> bfd
Enable BFD for ISIS on a interface
Operational Commands
====================
.. opcmd:: show protocols bfd peer
Show all BFD peers
.. code-block:: none
BFD Peers:
peer 198.51.100.33 vrf default interface eth4.100
ID: 4182341893
Remote ID: 12678929647
Status: up
Uptime: 1 month(s), 16 hour(s), 29 minute(s), 38 second(s)
Diagnostics: ok
Remote diagnostics: ok
Local timers:
Receive interval: 300ms
Transmission interval: 300ms
Echo transmission interval: 50ms
Remote timers:
Receive interval: 300ms
Transmission interval: 300ms
Echo transmission interval: 0ms
peer 198.51.100.55 vrf default interface eth4.101
ID: 4618932327
Remote ID: 3312345688
Status: up
Uptime: 20 hour(s), 16 minute(s), 19 second(s)
Diagnostics: ok
Remote diagnostics: ok
Local timers:
Receive interval: 300ms
Transmission interval: 300ms
Echo transmission interval: 50ms
Remote timers:
Receive interval: 300ms
Transmission interval: 300ms
Echo transmission interval: 0ms