Peering / p
Peering: cache in Miami (MIA) · P-32
xserv-p-f6198710545c
Runbook P-32 for Peering in Miami (MIA). Marker xserv-p-f6198710545c. This page covers cache for LATAM operators, not a worldwide average.
Peering: How XServ runs it day to day
Probes for Peering (p-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.
Peering: What operators should measure
Policy for Peering is versioned as p-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.
Peering: Failure modes we actually see
Capacity notes for p-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.
Peering rollback P-06
Rollback for p-06 is a documented command, not a hope. Transit is billed as backup while Peering prefers peering in Santiago. If cost spikes, the runbook cuts overflow to Bogotá before touching customer prefixes.
Peering peering P-07
Peering for Peering (p-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.
Peering cache P-08
Cache rules for Peering on p-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.
Peering headers P-09
Headers for p-09 carry the letter, the region (GRU) and a request id. Peering 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 Peering on letter P share fate with other letters?
- The control plane is shared. Data-plane queues for Peering stay isolated, so incident p-01 cannot drain neighbor letters.