Microsoft Teams: Ephemeral Port Exhaustion & WebSocket Socket Starvation
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Public Syllabus OverviewNetworking & WebSockets · undefined
Microsoft Teams: Ephemeral Port Exhaustion & WebSocket Socket Starvation: During Monday morning enterprise peak, 18 million active Teams meetings caused reverse proxy load balancers to crash with `EADDRNOTAVAIL` and `Connection Reset by Peer`. Load balancers ran out of outbound TCP ephemeral SNAT ports.