NETWORK SCHEDULER AND NETWORK SCHEDULING METHOD FOR SELECTIVELY SUPPORTING NETWORK WORK CONSERVING MODE

摘要

A network scheduler and a method thereof for selectively supporting a work serving mode in order to improve the efficiency of a network resource and improve the performance of the whole system are provided to manage network bandwidth efficiently by supporting a work conserving mode. Parent buckets support a token(14) to last child buckets which is in hierarchy structure. The work conserving mode for using the bandwidth guaranteeing the allocated bandwidth is selectively supported according to NSU which is each network subject. NSUs are classified as a green state, a red state, a yellow state and a black state according to existence and nonexistence of the packet request processed with the token value.