This read-only status shows the current operational state of a key synchronization session, such as connecting, connected, unreachable, failedAuth, or failed. Monitoring this value lets an administrator see at a glance whether encryption keys are actively being kept in sync with the remote peer, which matters because encrypted line traffic depends on both ends sharing current keys. For example, if keySyncSessionSessionStatus reports failedAuth instead of connected, it tells the admin the peer rejected the certificate or PSK credentials, not just that the network path is down.