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BGP Route Selection: a Failure of Intent-Based Networking

BGP Route Selection: a Failure of Intent-Based Networking

January 16, 2018

Via: ipSpace

It’s interesting how the same pundits who loudly complain about the complexities of BGP (and how it will be dead any time soon and replaced by an SDN miracle) also praise the beauties of intent-based networking… without realizing that the hated BGP route selection process represents one of the first failures of intent-based approach to networking.

Let’s start with some definitions. There are two ways to get a job done by someone else:

  • You tell them how to do the job (algorithmic or imperative approach)
  • You tell them what should be done but not how to do it (declarative approach). Marketers love to call this intent-based approach.

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