Abstract: A system and method for distributing guaranteed bandwidth among service groups in a network node are described. A position on a time scale of a buffer containing multiple data units is determined. A signal prompting selection of said buffer for release of at least one data unit of the data units is modified based on the position determined on the time scale.

Abstract: Self converging communication fair rate control systems and methods of the present invention facilitate fair utilization of node buffers and optimized utilization of available bandwidth. A self converging communication fair rate control method provides a fair rate that is utilized to determine a connection rate for communicating information from a plurality of virtual connection queues to a class of service buffer (COSB). The self converging communication fair rate control method includes establishing a self-convergence factor, determining a buffer flow ratio, and adjusting a fair rate value based upon the buffer flow ratio and the self-convergence factor. The buffer is divided into buffer fill regions designated by fair rate convergence-adaptation thresholds and are associated with self-convergence factors. The fair rate self-convergence factors dynamically decrease fair rate values that result in a buffer filling up and increase fair rate values that result in a buffer emptying out.

Abstract: A system and method for AAL5 enhanced encapsulation is disclosed. The method, comprises receiving an AAL5 CPCS-SDU at a router; encapsulating the AAL5 CPCS-SDU into an AAL5 enhanced packet at the router; generating an MPLS packet from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header; and routing the MPLS packet over an MPLS network.

Abstract: An information communication routing system and method for dynamically determining and utilizing available communication bandwidth is presented. Free excess bandwidth on a scheduled link is measured dynamically and free available bandwidth is dynamically distributed to a queue. In one embodiment, a bandwidth availability tracking value is utilized to measure free excess bandwidth on a scheduled link and the free excess bandwidth dynamically distributed or assigned to a queue. A first packet size (e.g., fixed packet size) is added to the bandwidth availability tracking value whenever a link is scheduled in a calendar scheduling slot. A second packet size (e.g., actual size of the packet departed) is subtracted from the bandwidth tracking value whenever information is departed from a queue. If the bandwidth tracking value exceeds a threshold value (e.g., is positive) it indicates there is excess available bandwidth and the excess available bandwidth is assigned to a queue.

Abstract: A system and method for efficient packetization of cells transmitted over a packet network are described. Multiple virtual connections are received, each virtual connection carrying multiple cells. One or more cells of the cells carried by each virtual connection are stored for a predetermined time period. A cell counter of the stored cells is modified to indicate a number of the stored cells. Finally, a packet containing the stored cells is formed, the packet to be transmitted to a destination node over a network.

Abstract: A first and a second switching node establish a tunnel to transport a packet through a multiprotocol label-switching (MPLS) network. The tunnel is associated with a unique tunnel key. One or more virtual ciruit (VC) labels are automatically generated using the tunnel key.

Abstract: A transmission system operable to store a plurality of transmission cells is disclosed. The transmission system comprises a first memory coupled to a plurality of signals and a first data bus. The transmission system also comprises a second memory coupled to the plurality of signals and a second data bus. The transmission system further comprises a controller coupled to the first memory device and the second memory device. The controller is operable to maintain a list comprising the available storage blocks in the first memory.