Anycast / a
Anycast: policy in Bogotá (BOG) · A-15
xserv-a-8e7d6d3c064e
Runbook A-15 for Anycast in Bogotá (BOG). Marker xserv-a-8e7d6d3c064e. This page covers policy for LATAM operators, not a worldwide average.
Anycast: What operators should measure
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.
Anycast: Failure modes we actually see
Capacity notes for a-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.
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 handoff A-05
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 rollback A-06
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 peering A-07
Peering for Anycast (a-07) prefers the IX fabric that already carries last-mile ISPs in Bogotá. Session counts and prefix limits are on the same page as the Miami backup path.
Anycast cache A-08
Cache rules for Anycast on a-08 keep language-correct objects near Miami. São Paulo is a sibling cache, not an origin. TTLs are short enough that a bad asset does not live through a weekend.
- 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.