PACKET SCHEDULING METHOD AND APPARATUS CONSIDERING VIRTUAL PORT

摘要

A scheduling apparatus calculates a packet start time with respect to an input packet and a scheduler including a plurality of slots selects a slot corresponding to the packet start time. Furthermore, the apparatus performs a scheduling by considering the number of packets stored in a selected slot and the number of packets corresponded to a virtual port--The virtual port is an output port of a switch device connected to the outside without a scheduling function--corresponding to the inputted packet after determining whether to save the packet in the selected slot. [Reference numerals] (1) Packet switch system; (10) Switch unit; (100) Scheduling apparatus; (20,AA,BB) Input unit; (30,CC,DD) Output unit; (EE) Compact switch; (FF) Output port; (GG) Virtual port