Electronics and Telecommunications Research Institute

Korea Telecommunication Authority

Sun Hee Yang

Nam Hoon Park

Ji Young Kwak

Sae Hoon Kang

Byung Yun Lee

Yong Yoon Shin

Hyun Ju Oh

Ho Sun Yoon

Pyung Koo Park

Tae Sang Choi

Sang Sik Yoon

Young Hwa Kim

Ji Soo Shin

Hyeon Sik Yoon

Byung Joon Lee

Sae Hyong Park

Byung Do Ko

A system and method for virtualizing SDN-based network monitoring. The system for includes: an information collector, a monitoring component, an information converter, and a resource allocator, in which a user-defined virtual monitor is included so that integrated monitoring may be performed, and expandability may be guaranteed to dynamically respond to a user's, demands.

System and method for virtualizing software defined network (SDN)-based network monitoring

An apparatus and method for generating a Software Defined Network (SDN)-based virtual network. The apparatus includes a network information generator and a virtual network generator, in which an SDN-based virtual network desired by a user may be generated efficiently by allocating physical resources to reflect various user demands.

Apparatus and method for generating software defined network(SDN)-based virtual network according to user demand

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.

Server load balancing apparatus and method using MPLS session

A method for controlling an operation and management subsystem in a signalling message exchange No.1 system, the operation and management subsystem including a user interface subsystem, a target interface subsystem, an operation control subsystem, a signalling network operation system interworking subsystem, an operation and management subsystem management subsystem and a data management subsystem. The method includes the steps of when the operation and management subsystem being at an idle state receives a message from the target system, converting the message by the target interface subsystem into a format for a selected one of the subsystems of the operation and management subsystem on the basis of a module identifier value of the message and then executing a control associated with the message by the selected subsystem, while when the operation and management subsystem being at the idle state receives a message from an operation and management worksite, converting the message by the user interface subsystem into a format for a selected one of the subsystems of the operation and management subsystem on the basis of a module identifier value of the message and then executing a control associated with the message from the user interface subsystem in the selected subsystem.

Method for controlling operation and management subsystem in signalling

An apparatus for and a method of duplex operation and management for an SMX-1 system, capable of minimizing a failure of the system and ensuring the consistency of data between the contents of database and the data being currently operated by two operation management subsystem modules (OMMs) operated in a fashion that when a failure occurs in one of the OMMs, the other OMM executes the function to be executed by the one OMM. The OMMs are connected to the target system by a highway interface unit and connected to a remote signalling network operations system (SIGNOS) by an X.25 network using a modem, one of the OMMs being in service to execute a management of network resources and a management of states of signalling networks, while the other OMM being standby.

Apparatus for and method of duplex operation and management for

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Daejeon, South Korea

Sun Hee Yang