Patent ID: 7009941
Filing Date: 2006-03-07
Classification: H04L

Abstract:
1. A node-search method in a network, comprising the steps of: a host of a first domain, acquiring a packet which includes routing information of a network configured with a plurality of domains including the first domain connected to at least one interworking unit; the host, sending a broadcast packet, for requesting a response from a node which provides a specific service, to at least any one of said plurality of domains other than the first domain which is listed in said acquired routing information; and receiving a response packet for said broadcast packet and detecting the node which sent the response packet, wherein a plurality of interworking units exist in the network, wherein at least one of said plurality of interworking units is a bridge, a brouter, or a router, and first sending the broadcast packet to at least one of said plurality of domains with the fewest hop counts.