Babel (protocol)

Babel
Developer(s) Juliusz Chroboczek
Operating system Linux, BSD, Mac OS X
Type Routing protocol
License MIT License
Website http://www.pps.univ-paris-diderot.fr/~jch/software/babel/

The Babel routing protocol is a distance-vector routing protocol for Internet Protocol packet-switched networks that is designed to be robust and efficient on both wireless mesh networks and wired networks.

Babel is based on the ideas in Destination-Sequenced Distance Vector routing (DSDV), Ad hoc On-Demand Distance Vector Routing (AODV), and Cisco's Enhanced Interior Gateway Routing Protocol (EIGRP), but uses different techniques for loop avoidance. Babel has provisions for using multiple dynamically computed metrics; by default, it uses hop-count on wired networks and a variant of ETX on wireless links, but can be configured to take radio diversity into account [1] or to automatically compute a link's latency and include it in the metric.[2]

Babel operates on IPv4 and IPv6 networks. It has been reported to be a robust protocol and to have fast convergence properties.[3][4]

Four implementations of Babel are freely available: the standalone "reference" implementation, a version that used to be[5] integrated into the Quagga routing suite,[6][7] a minimal reimplemantation in Python[8] and one that is an extension to the BIRD routing platform.[9] The version that was integrated into Quagga allowed for authentication,[10] while the reference version has support for Source-specific routing.[11]

In October 2015, Babel was chosen as the mandatory-to-implement protocol by the IETF Homenet working group, albeit on an Experimental basis.[12]

References

  1. ↑ https://tools.ietf.org/html/draft-chroboczek-babel-diversity-routing-01
  2. ↑ Baptiste Jonglez and Juliusz Chroboczek. A delay-based routing metric. http://arxiv.org/abs/1403.3488
  3. ↑ M. Abolhasan; B. Hagelstein; J. C.-P. Wang (2009). "Real-world performance of current proactive multi-hop mesh protocols".
  4. ↑ David Murray, Michael Dixon & Terry Koziniec (2010). "An Experimental Comparison of Routing Protocols in Multi Hop Ad Hoc Networks" (PDF).
  5. ↑ babeld: Remove babeld from Quagga
  6. ↑ Gmane - ANNOUNCE: babeld for quagga. Mid.gmane.org (2011-12-25). Retrieved on 2014-05-30.
  7. ↑ Gmane - quagga users 12686 a preview of Babel new routing protocol is available. Mid.gmane.org (2012-01-22). Retrieved on 2014-05-30.
  8. ↑ http://www.ietf.org/mail-archive/web/homenet/current/msg05122.html
  9. ↑ http://mid.gmane.org/1439935563-18321-1-git-send-email-toke@toke.dk
  10. ↑ D. Ovsienko, " Babel HMAC Cryptographic Authentication "
  11. ↑ Matthieu Boutier; Juliusz Chroboczek (2015). Source-Specific Routing. Proc. IFIP Networking. arXiv:1403.0445Freely accessible.
  12. ↑ http://mid.gmane.org/562F5B00.9010802@bellis.me.uk

External links

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