DNS / d
DNS: handoff in São Paulo (GRU) · D-05
xserv-d-a31b2bcc3dfd
Runbook D-05 for DNS in São Paulo (GRU). Marker xserv-d-a31b2bcc3dfd. This page covers handoff for LATAM operators, not a worldwide average.
DNS: How this letter ties to the rest
Handoff from letter D DNS into the rest of the platform uses the same request IDs as the gateway. Runbook d-05 names who accepts the ticket after São Paulo pages out. Santiago does not silently inherit the incident.
DNS: A note on cost and transit
Rollback for d-06 is a documented command, not a hope. Transit is billed as backup while DNS prefers peering in Santiago. If cost spikes, the runbook cuts overflow to Bogotá before touching customer prefixes.
DNS: Why it matters on this continent
Design for DNS on letter D starts in São Paulo (GRU). Runbook d-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.
DNS capacity D-04
Capacity notes for d-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.
DNS handoff D-05
Handoff from letter D DNS into the rest of the platform uses the same request IDs as the gateway. Runbook d-05 names who accepts the ticket after São Paulo pages out. Santiago does not silently inherit the incident.
DNS rollback D-06
Rollback for d-06 is a documented command, not a hope. Transit is billed as backup while DNS prefers peering in Santiago. If cost spikes, the runbook cuts overflow to Bogotá before touching customer prefixes.
DNS peering D-07
Peering for DNS (d-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 DNS on letter D share fate with other letters?
- The control plane is shared. Data-plane queues for DNS stay isolated, so incident d-01 cannot drain neighbor letters.
- Where is DNS measured first?
- From Santiago (SCL) toward Bogotá. A global average is not an SLO for letter D.