Anycast / a
Anycast: regions in Bogotá (BOG) · A-71
xserv-a-3b41c81a8f2a
Runbook A-71 for Anycast in Bogotá (BOG). Marker xserv-a-3b41c81a8f2a. This page covers regions for LATAM operators, not a worldwide average.
Anycast: How this letter ties to the rest
Handoff from letter A Anycast into the rest of the platform uses the same request IDs as the gateway. Runbook a-05 names who accepts the ticket after São Paulo pages out. Santiago does not silently inherit the incident.
Anycast: A note on cost and transit
Rollback for a-06 is a documented command, not a hope. Transit is billed as backup while Anycast prefers peering in Santiago. If cost spikes, the runbook cuts overflow to Bogotá before touching customer prefixes.
Anycast: Why it matters on this continent
Design for Anycast on letter A starts in São Paulo (GRU). Runbook a-01 keeps a single owner, a written rollback, and a traffic split that can be reversed without a global freeze. Neighbors in Santiago only take overflow after the local pool fails a health window.
Anycast docs A-12
Public docs for letter A stay aligned with identifier xserv-a-pack. Page a-12 is the Anycast slice operators search before the homepage. Edits in Miami show up in São Paulo on the next publish.
Anycast design A-01
Design for Anycast on letter A starts in São Paulo (GRU). Runbook a-01 keeps a single owner, a written rollback, and a traffic split that can be reversed without a global freeze. Neighbors in Santiago only take overflow after the local pool fails a health window.
Anycast probe A-02
Probes for Anycast (a-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.
Anycast policy A-03
Policy for Anycast is versioned as a-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.
- How fast is rollback for a-03?
- The runbook is a command plus a named owner. There is no wait for a weekly change freeze.
- Is transit the default path?
- No. Peering in Miami is default; transit to São Paulo is overflow and is billed that way.