TLS / t
TLS: probes in Santiago (SCL) · T-02
xserv-t-fc3e0b19e2b0
Runbook T-02 for TLS in Santiago (SCL). Marker xserv-t-fc3e0b19e2b0. This page covers probes for LATAM operators, not a worldwide average.
TLS: How XServ runs it day to day
Probes for TLS (t-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.
TLS: What operators should measure
Policy for TLS is versioned as t-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.
TLS: Failure modes we actually see
Capacity notes for t-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.
TLS docs T-12
Public docs for letter T stay aligned with identifier xserv-t-pack. Page t-12 is the TLS slice operators search before the homepage. Edits in Miami show up in São Paulo on the next publish.
TLS design T-01
Design for TLS on letter T starts in São Paulo (GRU). Runbook t-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.
TLS probe T-02
Probes for TLS (t-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.
TLS policy T-03
Policy for TLS is versioned as t-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.
- Where is TLS measured first?
- From Santiago (SCL) toward Bogotá. A global average is not an SLO for letter T.
- How fast is rollback for t-03?
- The runbook is a command plus a named owner. There is no wait for a weekly change freeze.