AI Impact on the Backbone
summary
Meta's backbone connects 25+ data centers and 85 PoPs over millions of miles of fiber and reports 30–50% traffic increase from AI since 2022 as GPU demand doubles year‑over‑year. Traffic rises due to data freshness, heavy data replication, and cross‑region inference; volumes hit exabyte scale. Controls include workload placement, scheduled bulk transfers, QoS classes, bigger buffers, caching to cut cross‑region reads, and improved observability; those changes reduce projected backbone growth and keep capacity provisioning manageable.
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