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BGP swiss army knife

Project description

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ExaBGP allows engineers to control their network from commodity servers. Think of it as Software Defined Networking using BGP.

It can be used to announce ipv4, ipv6, vpn or flow routes (for DDOS protection) from its configuration file(s). ExaBGP can also transform BGP messages into friendly plain text or JSON which can be easily manipulate by scripts and report peer announcements.

It supports IPv4, IPv6, mpls, vpls, bgp-ls, flowspec and more.



ExaBGP requires a recent python 3 version (3.7 or later recommended). It includes/vendors its dependencies.

Using pip

  1. Use pip to install the packages:
pip install -U exabgp
exabgp --help

Without installation

curl -L | tar zx
./exabgp-4.2.13/sbin/exabgp --help


Version explained:
  • major : codebase increase on incompatible changes
  • minor : increase on risk of code breakage during a major release
  • bug : increase on bug or incremental changes
Version 4.2.13
  • Fix: issue when there is no route to the peer and the connection looked like it established with the API reported by: iddq
  • Fix: healthcheck was not ending if/when exabgp did reported by: mzealey
  • Fix: issue with poller reported by: emilstahl97
Version 4.2.12
  • Fix: issue with flow fragment (issue #1027)
Version 4.2.11
  • Feature: new release code allowing the creation of zipapp

Version 4.2.10: * Fix: cache invalidation on clear command patch by: Boris Murashov

Version 4.2.9
  • Fix: healthcheck –sudo, –debug and –no-ack are not exclusive reported by: sincerywaing
Version 4.2.8:
  • Fix: restore python -m exabgp
Version 4.2.7:
  • Feature: logging parsing in debug mode will now print the JSON of updates
  • Fix: issue during restart
  • Fix: add ipv6 mpls to add-path patch by: adrian62
  • Fix: aggregator parsing when no space are used around () reported by: thomas955
  • Fix: high CPU load to do sleeptime in second and not ms reported by: Gary Buhrmaster
  • Change: BGP-LS TE-RIDs are now reported as a list (as Arista reports more than one) patch: tomjshine
  • reported: the RIB code so withdraw message before any announce are sent
    this does change the RIB behaviour sending withdrawal when it was not previously
  • Fix: bad parsing in some case when capability next-hop was used reported: alexejli
Version 4.2.6:
  • Fix: prevent the deletion of IP addresses not added by the healthchecker
Version 4.2.5:
  • Fix: Fix loopback detection without label issue patch by: Ruben Herold
Version 4.2.4:
  • Change: display next-hop in flow redirect (fixes a bug with route generation too) reported by: Cathal Mooney
Version 4.2.3:
  • Fix: issue with sending data toward API reported by: jkldgoefgkljefogeg
  • Fix: bug in spin prevention (true vs True)
  • Fix: peer and local ID for show neighbor commands
Version 4.2.2:
  • Fix: issue with new respawn feature breaking the API
Version 4.2.1:
  • Feature: use vendored ip_address module for healthcheck
  • Feature: respawn option under the process (disable re-starting the api program on failure)
  • Feature: support for single announcement for the healthcheck
Version 4.2.0:
  • Feature: Support additional sub-type of BGP-Prefix-SID for SRv6-VPN patch by: Hiroki SHIROKURA
  • Fix: issue with pypi release (can not pip install) reported by: Thomas Faivre
  • Fix: on ‘restart’ config could improperly interference with current config which leads to inconsystent state and crash patch by: Alexander Petrovsky
  • Feature: “rate-limit” (per neighbor) limit the number of BGP message(s) handled per second
  • Feature: support draft-ietf-idr-flowspec-redirect-02 (previously only simpson was supported) patch by: Eli Lindsey
  • Feature: BGP LS IPv6 parsing support patch by: Tinus Flagstad
  • Feature: healthcheck handle loopback for non-Linux machines
  • Fix: use local IP for router-id when the peer is auto-deteted (and not the remote IP)
  • Fix: potential python3/python2 bytes vs string issues when generating updates
  • Fix: label is mandatory when using RD, force it, and perform better checks on the configuration
  • Fix: sending route-refresh message via the API was broken reported by: Konrad Zemek
  • Fix: make sure exabgpcli does not hang when exabgp.api.ack is set to False patch by: basyron
  • Fix: not correctly recording AFI for next-hop self use
  • Fix: removal of ip address by healthcheck patch by: wavezhang
  • Fix: healthcheck on ^C during time.sleep, exit gracefully
  • Fix: healthcheck do not fail if the IP address exist when we are trying to add it
  • Fix: healthcheck correctly remove the IP address on going down if it was added
  • Fix: bug when parsing passive keyword alone (was false not true)
  • Fix: was not always terminating with error code 0 when all was good patch by: badrabubker
  • CHANGE: large change to the configuration code (should not have any effect but the devil is in the details)
  • CHANGE: using next-hop self could lead to route generated with a IPv6 next-hop in the IPv4 next-hop This COULD have been accepted by peers. This version does prevent such generation.
  • CHANGE: resolve symlink when reading the file and not when parsing the configuration reported by: juise (with alternative patch - thank you)
  • CHANGE: the reactor was changed from using select to poll (removing the 1024 limit on connections)
  • CHANGE: rewrote, moving release code into another file
Version 4.1.5:
  • Deleted: could not install via pip install
Version 4.1.4:
  • Deleted: could not install via pip install
Version 4.1.3:
  • Deleted: could not install via pip install
Version 4.1.2
  • Feature: exabgpcli autocomplete
  • Fix: exabgpcli was not correctly removing data on the pipe in case of issues
Version 4.1.1
  • CHANGE: some message are now printed using the log routes option and not parser anymore
  • Fix: bug with functional testing code when using python3 patch by: Cooper Lees
  • Fix: bug with ExaBGP cli not working reported by: jlixfeld (thank you to Cooper Lees for providing time and a test env. to reproduce)
Version 4.1.0
  • CHANGE: when redifining a single parameter option using inheritence the value will be replaced
  • CHANGE: FlowSpec TRUE and FALSE value have been updated to use the latest RFC and are therefore inverted from previous versions
  • CHANGE: an invalid netmask for a network will now cause ExaBGP to fail the parsing of the route (it can stop ExaBGP from starting with bad routes)
  • Feature: support for extended next-hop (RFC 5549)
  • Feature: implemented API for “clear adj-rib out” and “flush adj-rib out”
  • Fix: regression pointed in #873 patch: Malcolm Dodds
  • Fix: do not crash when trying to be helpful in presenting notification message reported by: Adam Jacob Muller
  • Fix: issue while handling ranged neighbors patch: Wenxin Wang
  • Fix: accumulating families when using multiple peers patch: Martin Topholm (reviewed)
  • Fix: could not reload configuration reported by: gbock
  • Feature: better RFC5575bis support, better treat as withdraw patch: Christoph Loibl
  • Fix: Fix issue when using peer ASN discovery patch: Zac Medico
  • Fix: MD5 encoding reported by: Adam Jacob Muller (with an initial idea for a patch)
  • Fix: ignore unknown BGP-LS SID reported by: MosesN
  • Fix: badly deciding when to send or not AddPath from parsing the Capability reported by: ivan-balan

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