Two custom static routes in the same VPC both cover 10.20.0.0/16; route A has priority 1000 and route B has priority 100. Which route will Google Cloud use to forward traffic for that destination?

Google Cloud networking prioritizes routes based on the lowest numerical priority value. Therefore, Route B, with a priority of 100, will be preferred over Route A, which has a priority of 1000, for traffic destined to 10.20.0.0/16. Higher numbers do not represent stronger preference in Google Cloud routing. Traffic is not load balanced between static routes covering the same destination; only the highest-priority route is used. Cloud Router manages dynamic routing protocols like BGP and does not override custom static routes unless there's a more specific or higher-priority dynamic route, which isn't the case here.