Patent ID: 7437478
Filing Date: 2008-10-14
Classification: H04L

Abstract:
1. A priority control device coupled to clients and a server through a TCP/IP communication network, for performing communication via a plurality of communication protocols at a protocol layer 4, comprising: a unit for receiving request messages at the protocol layer 4 sent from the clients; a unit for storing priority control rules that define a priority protocol type including a protocol used for the request message and an allowable delay time allowed for transmission of the request message to the server; a unit for prioritizing the request message by analyzing the request message via referring to the priority control rules so that the protocol included in the request message matches with that of the priority control rule, and so that the allowable delay time is taken into consideration for prioritizing; and a processing unit for transmitting the request messages to the server in an order of priorities of the request messages according to determination by the prioritizing unit and receiving from the server response messages for the request messages and then transmitting the response messages to the clients.