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Srv6 powered backbone networks#

OCP Global Summit 2026 digest Program Core pick 12–15 October 2026

Abstract Recording

Jasmeet Bagga (Facebook), Andrey Golovanov (Meta)

Play the recording: Srv6 powered backbone networks

  • Why: Meta WAN/backbone architecture is squarely in the PM's DC/WAN-interconnect core interest, and this is an unusually internals-heavy talk: SRv6 for traffic engineering, shallow-buffer switches for long-haul, and real SAI/FBOSS experience.
  • What: RBB (Regional Backbone), a newly designed inter-region connectivity network running in parallel to Meta's express backbone (EBB), motivated by the cost of replicating latency-sensitive core services into every region as region count grows (from abstract only).
  • How: Traffic-engineered SRv6 over shallow-buffer switches for long-haul backbone links — a counterintuitive choice the talk explains — with SRv6 SAI support and deployment experience on FBOSS OCP switches.
  • Where applicable: Meta-specific WAN, but the design pattern (parallel TE'd backbone with SRv6, shallow buffers for long-haul) and the SAI/SRv6 standardization feedback are broadly relevant to multi-region operators.