Border Gateway Protocol (BGP) is an enormous protocol with a nearly endless list of features, knobs and capabilities. BGP’s mechanism for choosing the best path is complex but also well known. You should brush up on that algorithm if you’re out of practice. By Nicholas Russo.
The article covers following topics:
- Use the Multi Exit Discriminator (MED)
- Use AS-path prepending
- Use longest-match routing
- Reference configurations
This blog explores a lesser-known but powerful traffic engineering technique using BGP communities and the local-preference value. You should have basic familiarity with BGP and IP routing in general to realize the most value from this blog. Good read!
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