Abstract: The present invention relates to a method for providing Social Network Service (SNS) on the Internet and a system using the same. The present invention is characterized by creating a user tag list constructed with tags that are acquired by a user terminal; forming a social network between the user and other users, based on tags of the user tag list; and creating a diary based on the user tag list and social network associated with tags of the user tag list. While the present invention enables a user to create a diary about one's own life, the present invention provides a social network service (SNS) by utilizing tagging information in the created diary to form a new social network with people or specialists who have the same interests.

Abstract: A system and method for supporting network mobility based on identifier-locator separation, provides seamless session services to terminals inside the mobile network by enabling a variety of tunnel routers (home tunnel router, visit tunnel router, etc.) on network to store/manage mobile network mapping information for network mobility. The system for supporting network mobility based on identifier-locator separation includes: a mobile router configured to register mobile network identification information in a home tunnel router, and support communication with the home tunnel router, on behalf of mobile network nodes located in a home network; and a home tunnel router configured to support communication with a correspondent node by using tunnel router mapping information, and support communication with the mobile router by using mobile network mapping information.

Abstract: Disclosed herein is a constrained multipath routing method. In a Multi-Protocol Label Switching (MPLS) network, network conditions and traffic engineering requirements assigned to each link are set. The amount of assignments of each traffic requirement assigned to each link and a minimum value of each maximum link utilization ? are calculated. A traffic rate (Xijkl) in which the degree of resource utilization is minimized in the minimized maximum link utilization ? is calculated using the calculated amount of assignments of each traffic requirement and which is assigned to each link. Multiple paths corresponding to each traffic requirement and traffic division ratios of the multipath are calculated using the calculated traffic rate.

Abstract: Disclosed herein is a constrained multipath routing method. In a Multi-Protocol Label Switching (MPLS) network, network conditions and traffic engineering requirements assigned to each link are set. The amount of assignments of each traffic requirement assigned to each link and a minimum value of each maximum link utilization &agr; are calculated. A traffic rate (Xijkl) in which the degree of resource utilization is minimized in the minimized maximum link utilization &agr; is calculated using the calculated amount of assignments of each traffic requirement and which is assigned to each link. Multiple paths corresponding to each traffic requirement and traffic division ratios of the multipath are calculated using the calculated traffic rate.

Abstract: A method of allotting the signal links and routing the signal messages in the signalling transfer points of a common channel signalling system which are level type signalling transfer points for carrying out message transfer functions based on the common channel signalling No. 7 protocol of the ITTCC. Each signalling transfer point includes a signalling link selection value composed of a number of bits, signal data links, signal links, signal network functions, clusters and groups, connected in such a manner that a signalling transfer point includes a certain number of signal network functions, each signal network function including a certain number of signal links, each signal link being connected to one signal data link. The signalling transfer point includes a number of clusters of signal links (equal to the number of signal network functions) grouped in a plurality of clusters (equal to the number of signal links).