A multi-dimensional buffer management hierarchy

Details A multi-dimensional buffer management hierarchy A multi-dimensional buffer management hierarchy

H - Electricity

04

L

H04L 29/02 (2006.01) H04L 12/24 (2006.01)

Patent

CA 2358421

A congestion management system that controls access to any shared resource by incoming data transmission units. The access can be controlled based on the particular connection associated with a data transmission unit. Every shared resource, such as a pool of buffer memory, is represented by a partition. The congestion management system is comprised of a plurality of connection data structures and a plurality of partition data structures. Each connection data structure represents a particular connection and, similarly, each partition data structure represents a particular partition. Each incoming DTU is associated with a single connection but may be allowed access to more than one partition. Each partition is associated with a shared resource and access to each partition is governed by the state of a partition data structure. If a partition data structure indicates that a specific threshold has been met, then access to the shared resource by other DTUs is denied. Depending on the priority level enforced a DTU may be accepted or rejected based on the priority level of the DTU. It should be mentioned that the priority level enforced may change depending on the number of DTUs that are currently accessing the resource.

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