Babel (protocol)

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Babel logo black.svg
Developer(s) Juliusz Chroboczek
Operating system GNU/Linux, BSD, Mac OS X
Type Routing Protocol
License MIT License

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 it uses a variant of Expected Transmission Count (ETX) link cost estimation rather than a simple hop-count metric. It employs several techniques to ensure the absence of routing pathologies, such as routing loops.

Babel operates on IPv4 and IPv6 networks. It has been reported to be a robust protocol and to have fast convergence properties.[1][2]

Two implementations of Babel are freely available: the standalone sample implementation, and a version that is integrated into the Quagga routing suite.[3][4] The version integrated into Quagga allows for authentication.[5]


  1. ^ M. Abolhasan, B. Hagelstein, J. C.-P. Wang (2009). Real-world performance of current proactive multi-hop mesh protocols. 
  2. ^ David Murray, Michael Dixon and Terry Koziniec (2010). An Experimental Comparison of Routing Protocols in Multi Hop Ad Hoc Networks. 
  3. ^ Gmane - ANNOUNCE: babeld for quagga. (2011-12-25). Retrieved on 2014-05-30.
  4. ^ Gmane - quagga users 12686 a preview of Babel new routing protocol is available. (2012-01-22). Retrieved on 2014-05-30.
  5. ^ D. Ovsienko, « Babel HMAC Cryptographic Authentication »

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