Keys / k
Keys: design in São Paulo (GRU) · K-01
xserv-k-16443ba36e87
Runbook K-01 for Keys in São Paulo (GRU). Marker xserv-k-16443ba36e87. This page covers design for LATAM operators, not a worldwide average.
Keys: Why it matters on this continent
Design for Keys on letter K starts in São Paulo (GRU). Runbook k-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.
Keys: How XServ runs it day to day
Probes for Keys (k-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.
Keys: What operators should measure
Policy for Keys is versioned as k-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.
Keys capacity K-04
Capacity notes for k-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.
Keys handoff K-05
Handoff from letter K Keys into the rest of the platform uses the same request IDs as the gateway. Runbook k-05 names who accepts the ticket after São Paulo pages out. Santiago does not silently inherit the incident.
Keys rollback K-06
Rollback for k-06 is a documented command, not a hope. Transit is billed as backup while Keys prefers peering in Santiago. If cost spikes, the runbook cuts overflow to Bogotá before touching customer prefixes.
Keys peering K-07
Peering for Keys (k-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.
- Does Keys on letter K share fate with other letters?
- The control plane is shared. Data-plane queues for Keys stay isolated, so incident k-01 cannot drain neighbor letters.
- Where is Keys measured first?
- From Santiago (SCL) toward Bogotá. A global average is not an SLO for letter K.