01
Design inputs
Identify the applications that must survive an outage, their minimum capacity and recovery objectives. Map shared ducts, bridges, landing stations, power, buildings, upstream networks and management systems. Separate physical diversity from protocol-level protection.
02
Delivery scope
Compare alternate paths and media using documented evidence. Define traffic priorities when the backup is smaller than the primary. Check addressing, VPN continuity, routing policy and dependencies on remote authentication or cloud control during a degraded state.
03
Acceptance & operations
Run failure and recovery tests with representative traffic. Validate loss detection, failover, return to primary and incident escalation. Record exceptions and repeat the review when a route changes. Satellite or wireless availability, licensing and capacity are assessed for the specific site and provider.
