Interconnect / i
Interconnect: design in São Paulo (GRU) · I-13
xserv-i-b6a51e54036d
Runbook I-13 for Interconnect in São Paulo (GRU). Marker xserv-i-b6a51e54036d. This page covers design for LATAM operators, not a worldwide average.
Interconnect: Why it matters on this continent
Design for Interconnect on letter I starts in São Paulo (GRU). Runbook i-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.
Interconnect: How XServ runs it day to day
Probes for Interconnect (i-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.
Interconnect: What operators should measure
Policy for Interconnect is versioned as i-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.
Interconnect handoff I-05
Handoff from letter I Interconnect into the rest of the platform uses the same request IDs as the gateway. Runbook i-05 names who accepts the ticket after São Paulo pages out. Santiago does not silently inherit the incident.
Interconnect rollback I-06
Rollback for i-06 is a documented command, not a hope. Transit is billed as backup while Interconnect prefers peering in Santiago. If cost spikes, the runbook cuts overflow to Bogotá before touching customer prefixes.
Interconnect peering I-07
Peering for Interconnect (i-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.
Interconnect cache I-08
Cache rules for Interconnect on i-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.
- Does Interconnect on letter I share fate with other letters?
- The control plane is shared. Data-plane queues for Interconnect stay isolated, so incident i-01 cannot drain neighbor letters.
- Where is Interconnect measured first?
- From Santiago (SCL) toward Bogotá. A global average is not an SLO for letter I.