Interconnect / i

Interconnect: cache in Miami (MIA) · I-44

xserv-i-f8f31760ecfd

Runbook I-44 for Interconnect in Miami (MIA). Marker xserv-i-f8f31760ecfd. This page covers cache for LATAM operators, not a worldwide average.

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: Failure modes we actually see

Capacity notes for i-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.

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.

Interconnect headers I-09

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

Is transit the default path?
No. Peering in Miami is default; transit to São Paulo is overflow and is billed that way.
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.