Patent ID: 8108480
Filing Date: 2012-01-31
Classification: H04N

Abstract:
1. A system comprising: a first admission scheduler including a processor and memory, coupled in parallel with at least one second admission scheduler configured to back up the first admission scheduler, configured to: schedule an initiation of requested video sessions at a plurality of parallel video servers to prevent synchrony at the plurality of parallel video servers, and periodically multicast an admission map to the at least one second admission scheduler, wherein the admission map comprises a schedule of the initiation of requested video sessions at the plurality of parallel video servers; wherein the first admission scheduler and the at least one second admission scheduler are configured to employ a heartbeat protocol to detect a failure in an other admission scheduler; and wherein the heartbeat protocol is operative to detect the failure in response to determining that a predetermined number of heartbeat packets of the heartbeat protocol have not been received from the admission scheduler having the failure.