Where is Anycast measured first?

From Santiago (SCL) toward Bogotá. A global average is not an SLO for letter A.

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.

Anycast: timeouts in Santiago (SCL) · A-22

Runbook A-22 for Anycast in Santiago (SCL). Marker xserv-a-2b4f575f633d. This page covers timeouts for LATAM operators, not a worldwide average.

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: 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 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.

Anycast headers A-09

Headers for a-09 carry the letter, the region (GRU) and a request id. Anycast debugging in São Paulo should not require a packet capture in Santiago first.

Anycast timeouts A-10

Timeouts on a-10 are tighter than the WAN RTT to Bogotá. Anycast in Santiago fails fast and retries once; a third try needs a human because it is no longer a blip.

Anycast regions A-11

Region names on a-11 match DNS and tickets: Bogotá / BOG, with Miami as the documented pair. Anycast dashboards never say “LATAM” as if it were one RTT.