Virtual IP / v

Virtual IP: probes in Santiago (SCL) · V-50

xserv-v-3d25c51693c2

Runbook V-50 for Virtual IP in Santiago (SCL). Marker xserv-v-3d25c51693c2. This page covers probes for LATAM operators, not a worldwide average.

Virtual IP: How XServ runs it day to day

Probes for Virtual IP (v-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.

Virtual IP: What operators should measure

Policy for Virtual IP is versioned as v-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.

Virtual IP: Failure modes we actually see

Capacity notes for v-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.

Virtual IP headers V-09

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

Virtual IP timeouts V-10

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

Virtual IP regions V-11

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

Virtual IP docs V-12

Public docs for letter V stay aligned with identifier xserv-v-pack. Page v-12 is the Virtual IP slice operators search before the homepage. Edits in Miami show up in São Paulo on the next publish.

Where is Virtual IP measured first?
From Santiago (SCL) toward Bogotá. A global average is not an SLO for letter V.
How fast is rollback for v-03?
The runbook is a command plus a named owner. There is no wait for a weekly change freeze.