Patent ID: 7957383
Filing Date: 2011-06-07
Classification: H04L,H04W

Abstract:
1. A method of sharing a network identifier for a plurality of mobile routers in a mobile network, comprising: a step in which at least two mobile routers initially set a first network identifier unique to an internal link that the at least two mobile routers connect to; a step of transmitting a first message for advertising the first network identifier initially set; a step of selecting the network identifier from either one of the first network identifier initially set or the advertised network identifier, as a second network identifier of the internal link that the at least two mobile routers connect to, when one mobile router of the at least two mobile routers receives a second message advertising the second network identifier different from the first network identifier initially set, as the new network identifier of the internal link; and a step in which the one mobile router, if the selected network identifier is identical to the first network identifier initially set, continues advertising the first network identifier in the mobile network and additionally registers the first network identifier in a home agent, and if the selected network identifier is not identical to the first network identifier, stops transmitting the first message advertising the first network identifier initially set and registers the second network identifier in the home agent as the new network identifier of the internal link, wherein each message with which the one mobile router advertises the first or second network identifier to the internal link includes a respective elapsed time that indicates a time since the first or second network identifier was registered in the home agent, and wherein a respective mobile router of the plurality of routers that has received the first or second message selects one of the first or second network identifier according to a comparison of the respective elapsed times in the step of selecting the network identifier.