RPR NODE DEVICE, FAIRNESS CONTROL METHOD, AND RPR COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To execute a fairness guarantee of communication traffic executed in an RPR (Resilient Packet Ring.IEEE802. 17) ring even in an inter-ring connection.;SOLUTION: Respective pieces of information of a transmission source address, a service class, a fairness bit and a ring transfer direction as well as transmission weight control information to be used for fairness control from RPR control information of an arrival packet are extracted, packets with a fairness bit being "0" are temporarily stored in an output queue in each different service class, packets with a fairness bit being "1" are weighted on the basis of the transmission weight control information and temporarily stored in an output queue in each different transmission source and ring transfer direction, and packet reading from the output queue in the each different class is performed more preferentially than packet reading from the output queue in the each different transmission source and ring transfer direction.;COPYRIGHT: (C)2009,JPO&INPIT