Patent ID: 6134236
Filing Date: 2000-10-17
Classification: H04L

Abstract:
A data format for use in a data communication system constructed by connecting a plurality of networks, to which node terminals are connected respectively, via relay units so as to execute data exchange between the networks,the data format being constructed bysetting routes of communication data in an address area provided in communication data as transmission object by use of root addresses, which are constructed by arranging addresses of relay units existing at branch points in the communication routes in passing order,dividing the address area into a majority code describing area, in which majority codes formed by coding at least types of the relay units in a discriminable manner are described, and a type code describing area, in which type codes formed by coding either the relay units of a same type or node terminals as connection objects in a discriminable manner are described, andsetting bit lengths of the majority code describing area and the type code describing area to appropriate values respectively while taking in account that communication routes are set by use of the root addresses.