Abstract: Techniques are provided to allow a jitter buffer to automatically reach a quiescent number of packets in the jitter buffer, based on current network conditions. Generally, no explicit jitter buffer delay is assumed, and a current packet is repeat played if no new packets are available in the jitter buffer. If there are too many packets in the jitter buffer, a newly received packet is discarded. When a packet is replayed, the delay associated with a jitter buffer is effectively increased. This is not an explicit jitter buffer delay, but, instead, there is an implicit delay associated with the jitter buffer. When a packet is discarded, the delay associated with a jitter buffer is effectively decreased. Again, this is an implicit jitter buffer delay. By repeat playing packets and discarding packets when the jitter buffer is full, an appropriate level of packets may be determined and maintained in the jitter buffer.

Abstract: Techniques are provided to allow a jitter buffer to automatically reach a quiescent number of packets in the jitter buffer, based on current network conditions. Generally, no explicit jitter buffer delay is assumed, and a current packet is repeat played if no new packets are available in the jitter buffer. If there are too many packets in the jitter buffer, a newly received packet is discarded. When a packet is replayed, the delay associated with a jitter buffer is effectively increased. This is not an explicit jitter buffer delay, but, instead, there is an implicit delay associated with the jitter buffer. When a packet is discarded, the delay associated with a jitter buffer is effectively decreased. Again, this is an implicit jitter buffer delay. By repeat playing packets and discarding packets when the jitter buffer is full, an appropriate level of packets may be determined and maintained in the jitter buffer.

Abstract: The distribution of replica caches of information is dynamically optimized among the regions of a network, based upon the changing usage patterns. Initially, a single server in a first region stores the primary copy of information. A router in the first region receives service request messages from the plurality of users throughout network, directed to the server storing the primary copy. To determine if it is justified to deploy a replica cache, the router transmits a monitor request message to other routers in other regions of the network, requesting them to monitor all service requests in their respective regions, being directed to the primary copy in the first server. The first router then computes an optimum assignment of a replica copy of the information, for storage in at least one newly assigned server in the network.