This read-create enumerated value marks this path as Hot Standby, meaning it is kept continuously signaled and ready so that traffic can switch to it near-instantaneously if the primary path fails, rather than being computed and signaled only after a failure is detected. An administrator protecting a latency-sensitive tunnel that cannot tolerate the delay of on-demand path setup after a failure would set csMplsPathHotStandby to on(2) to keep the backup path always pre-established.