Electronics and Telecommunications Research Institute

Hyeon Sik Yoon

Hea Sook Park

Bong Tae Kim

Pyung Koo Park

Ho Sun Yoon

Boo Geum Jung

Sun Hee Yang

Kwang Suk Song

Provided herein is a network access method and apparatus for supporting mobility of user equipment, the method including receiving information on a private IP (Internet Protocol) address for address conversion from a home network management server; receiving an LISP (Locator/ID Separation Protocol) data frame that includes a private IP address of the user equipment accessed to a current home network; converting the private IP address into a converted private IP address based on the information on a private IP address for address conversion; and transmitting data that has its basis on the LISP data frame to the home network apparatus based on the conversed private IP address, wherein the home network apparatus is an apparatus that the user equipment intends to access and that is accessed to the access home network.

Method and apparatus for supporting mobility of user equipment

Disclosed is an Internet protocol television (IPTV) data collection apparatus including: a transmission path setting unit acquiring a transmission path of an IPTV provider and setting a communication path with respect to a terminal of the transmission path; a message transmitting and receiving unit transmitting a multicast message to at least one terminal belonging to the transmission path and receiving a response message including information related to the IPTV provider and corresponding to the transmitted multicast message; and a data storing unit storing the information related to the IPTV provider, and a method thereof.

IPTV data collection apparatus and method based on multi-cast

Provides is a method for processing a multicast packet received in a system for simultaneously providing virtual interface-based layer-2 multicast switching and layer-3 multicast routing. When a destination MAC address of a received Ethernet frame is a multicast MAC address, a VLAN-based layer-2 multicast switching function is performed. When a destination IP address of a received Ethernet frame is a multicast IP address, a virtual interface-based layer-3 multicast routing function is simultaneously performed within the same system.

System and method for simultaneously offering layer-2 multicast switching and layer-3 multicast routing

The present invention provides a server load balancing apparatus using MPLS session labels. The server load balancing apparatus includes a packet analyzing unit, a load balancing processing unit, a session label switching unit, a session managing unit, and a session label managing unit. The packet analyzing unit inspects whether a session label has been attached to a received packet, analyzes header information of the received packet to learn session information, and attaches a session label to a header of the received packet. The load balancing processing unit assigns a server to a session of the received packet without the session label attached. The session label switching unit hardware-switches the received packet with the session label attached using only the session label information. The session managing unit manages and maintains relevant information and states of sessions. The session label managing unit manages the session label.

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Daejeon, South Korea

Hyeon Sik Yoon