Patent ID: 8005054
Filing Date: 2011-08-23
Classification: H04L

Abstract:
1. A communication system comprising: a plurality of communication terminals, and based on a message originated from a first communication terminal to a third communication terminal via a second communication terminal, each communication terminal included in the plurality of communication terminals creates routes to the first communication terminal by using the second and third communication terminals to communicate between the first and third communication terminals via the created route, wherein the second communication terminal has state notification means for detecting a possible disconnection state in terms of a disconnection symptom for communication on the route as an upstream side for the message and notifying the possible disconnection state to the first communication terminal, wherein a number of notifications of the possible disconnection state transmitted to the first communication terminal is limited to a specified ratio of one notification to a predetermined number of data packets transmitted between the first and third communication terminals, and the first communication terminal has message origination means for generating the message using a creation condition according to a route other than the route matching the possible disconnection state notified from the second communication terminal and originating the message.