We're using kubemci for web socket connections so the default timeout of 30s is way too low.

Our Service has a beta.cloud.google.com/backend-config annotation referencing a BackendConfig that specifies timeoutSec: 3000000.

kubemci appears to ignore the annotation, and instead resets the configured timeout to 30s every time we run it. This causes our customers connections to drop every 30 seconds.