Running Border Gateway Protocol in large-scale data centers
May 13, 2021Alexey Andreyev, Hyojeong Kim, Nanda Kishore Salem, Jingyi Yang, Petr Lapukhov, James Hongyi Zeng
Summary
This post details the scalable design, software implementation, and operations of Facebook's data center routing design based on Border Gateway Protocol (BGP). It introduces a uniform AS numbering scheme, hierarchical route summarization, and policy configurations for reliable communication. It also describes an in-house BGP agent with a multi-phase deployment pipeline for testing and incremental deployment, including unit testing, emulation, and canary testing.
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