Edge / e
Edge: cache in Miami (MIA) · E-80
xserv-e-2e23bd209f79
Runbook E-80 for Edge in Miami (MIA). Marker xserv-e-2e23bd209f79. This page covers cache for LATAM operators, not a worldwide average.
Edge: How XServ runs it day to day
Probes for Edge (e-02) leave Santiago every 15s toward Bogotá. XServ pages the named owner if loss or RTT crosses the letter budget. A probe never shares a queue with bulk transfers, so a saturated WAN does not hide a dead PoP.
Edge: What operators should measure
Policy for Edge is versioned as e-03. Operators measure error rate, p95 from Bogotá, and time-to-rollback — not a worldwide average. Changes land in Bogotá first, then Miami, with a hold if either region regresses.
Edge: Failure modes we actually see
Capacity notes for e-04 assume rainy-season power in Miami and festival peaks toward São Paulo. The failure we actually see is a single uplink, not a cartoon partition of the whole continent. Spare ports and a second provider sit on the same runbook.
Edge probe E-02
Probes for Edge (e-02) leave Santiago every 15s toward Bogotá. XServ pages the named owner if loss or RTT crosses the letter budget. A probe never shares a queue with bulk transfers, so a saturated WAN does not hide a dead PoP.
Edge policy E-03
Policy for Edge is versioned as e-03. Operators measure error rate, p95 from Bogotá, and time-to-rollback — not a worldwide average. Changes land in Bogotá first, then Miami, with a hold if either region regresses.
Edge capacity E-04
Capacity notes for e-04 assume rainy-season power in Miami and festival peaks toward São Paulo. The failure we actually see is a single uplink, not a cartoon partition of the whole continent. Spare ports and a second provider sit on the same runbook.
Edge handoff E-05
Handoff from letter E Edge into the rest of the platform uses the same request IDs as the gateway. Runbook e-05 names who accepts the ticket after São Paulo pages out. Santiago does not silently inherit the incident.
- Is transit the default path?
- No. Peering in Miami is default; transit to São Paulo is overflow and is billed that way.
- Does Edge on letter E share fate with other letters?
- The control plane is shared. Data-plane queues for Edge stay isolated, so incident e-01 cannot drain neighbor letters.