公开(公告)号：KR1020060070307A

公开(公告)日：2006-06-23

申请号：KR1020040108997

申请日：2004-12-20

Applicant: 한국전자통신연구원

Inventor： 제동국 ,  이규호 ,  최길영 ,  박재우

IPC: H04L12/24

CPC classification number: H04L65/1043 ,  H04L43/50 ,  H04L67/08

Abstract: 미디어 게이트웨이 성능 시험을 위한 호 패턴 생성 장치, 미디어 게이트웨이 성능 시험 장치 및 그 방법이 개시된다. 샘플 호 패턴을 조합하여 미디어 게이트웨이 성능 시험을 위한 호 패턴을 생성하고, 생성한 호 패턴에 따라 호 생성 및 해제 절차를 구성한 후, 구성한 절차에 따라 해당하는 MEGACO 프로토콜 메시지를 생성한다. 그리고, 가상의 미디어 게이트웨이 및 가상의 미디어 게이트웨이 컨트롤러를 포함하는 가상 망에서 MEGACO 프로토콜 메시지에 따라 시험 대상 미디어 게이트웨이에 호 설정 및 호 해제를 요구한다. 이로써, 실제 환경에 유사한 호 패턴을 이용하여 미디어 게이트웨이의 성능을 정확하게 측정할 수 있다.
호 패턴, MEGACO 프로토콜, 미디어 게이트웨이, 성능 시험

公开(公告)号：KR100525345B1

公开(公告)日：2005-11-02

申请号：KR1020020081821

申请日：2002-12-20

Applicant: 한국전자통신연구원

Inventor： 이재섭 ,  이규호 ,  류근호 ,  김태일

IPC: H04L12/833 ,  H04L12/851

Abstract: 본 발명은 인터넷에서 패킷 기반의 차등 서비스(DiffServ)를 제공하는 기술에 관한 것으로, 특히 차등 서비스망에서 클래스(class)를 갱신하는 장치 및 방법에 관한 것이다. 이러한 본 발명의 장치는 소정 알고리즘에 따라 타이머 테이블을 갱신하고 마커 패킷의 생성을 요구하는 메시지를 발생하는 타이머 타스크 모듈; 각종 테이블과 리스트를 관리하기 위한 차등 서비스 제어모듈; 이전노드로부터 인입된 패킷을 처리하기 위한 입력모듈; 상기 타이머 타스크 모듈로부터 메시지를 수신하면 마커 패킷을 생성하고, 소정의 절차에 따라 상기 테이블과 리스트를 참조하여 상기 입력모듈을 통해 입력된 패킷의 클래스을 갱신하는 마커생성 및 클래스 갱신모듈; 및 상기 마커생성 및 클래스 갱신모듈의 출력에 따라 입력 패킷을 스케쥴링하여 다음 노드로 전송하는 스케쥴러 모듈을 포함한다.
따라서 인터넷 상에서 본 발명에 따른 차등 서비스 클래스 갱신기를 이용할 경우 가입자와 서비스 제공자간 협약으로 체결된 플로우별 단대단 지연 및 손실 요구사항을 만족시킬 수 있으며, 현재 부하에 따른 동적인 차등 서비스 및 클래스 부하 분산을 가능하게 하는 장점을 제공한다.

公开(公告)号：KR100472952B1

公开(公告)日：2005-03-10

申请号：KR1020020066448

申请日：2002-10-30

Applicant: 한국전자통신연구원

Inventor： 박미룡 ,  석주명 ,  강현주 ,  최길영 ,  이규호 ,  이유경

IPC: H04L12/427

CPC classification number: H04L65/1006 ,  H04L29/06027 ,  H04L67/1002 ,  H04M7/006

Abstract: The present invention provides a Session Initiation Protocol (SIP)-based load balancing apparatus and method. The apparatus receives a message transmitted from a user at a position in front of a plurality of proxy servers each connected in parallel and decodes the received message. The apparatus selectively performs addition, renewal and deletion of user information according to an expiration field of a header and transmits the decoded message to a proxy server, if the decoded message is a REGISTER message, searches for a proxy server that will handle a destination address, increases a load of the proxy server and transmits the decoded message to the proxy server, if the decoded message is a INVITE message, and examines a proxy server of the destination address and transmits the decoded message to the proxy server, if the decoded message is a BYE message.

公开(公告)号：KR100461349B1

公开(公告)日：2004-12-14

申请号：KR1020010070957

申请日：2001-11-15

Applicant: 한국전자통신연구원

Inventor： 석주명 ,  이종협 ,  이규호 ,  이형호

IPC: H04L12/24

Abstract: PURPOSE: A method of automatically recognizing network node shape management information by using an SNMP(Simple Network Management Protocol) is provided to automatically recognize the shape management information of a recognized network management target node by using the SNMP, and to connect the information with the target node, thereby easily performing a shape management function. CONSTITUTION: A network management system stores shape management information of a network management target node in a storage(S201). When the target node is recognized(S202), the system decides whether the target node supports an SNMP(S203). If so, the system inquires of the target node about system object ID management information(S204). The target node responses to the inquiry based on the SNMP, and the system receives the response(S205). The system decides whether the shape management information exists in the storage(S206). If so, the system includes the information in management information of the target node(S208). If a manager requests the shape management information to be updated(S209), the system updates the shape management information(S207).

Abstract translation: 目的：提供一种通过使用SNMP（简单网络管理协议）自动识别网络节点形状管理信息的方法，以通过使用SNMP自动识别所识别的网络管理目标节点的形状管理信息，并且将该信息与 目标节点，从而容易地执行形状管理功能。 组成：网络管理系统将网络管理目标节点的形状管理信息存储在存储器中（S201）。 当目标节点被识别时（S202），系统判定目标节点是否支持SNMP（S203）。 如果是，则系统向目标节点询问系统对象ID管理信息（S204）。 目标节点响应基于SNMP的查询，并且系统接收该响应（S205）。 系统判定形状管理信息是否存在于存储器中（S206）。 如果是，则系统将该信息包括在目标节点的管理信息中（S208）。 如果管理者请求更新形状管理信息（S209），则系统更新形状管理信息（S207）。

公开(公告)号：KR100445913B1

公开(公告)日：2004-08-25

申请号：KR1020020029306

申请日：2002-05-27

Applicant: 한국전자통신연구원

Inventor： 김현철 ,  이규호 ,  이형호

IPC: G06F12/08

Abstract: PURPOSE: A fast page mode DRAM accelerator using a buffer cache is provided to maximize performance of an embedded system using the fast page mode DRAM by reducing a speed difference between a processor memory controller of a fast synchronous mode and a fast page mode DRAM offering a fast page mode burst cycle. CONSTITUTION: A processor interface controller(402) receives a memory control signal and the memory cycle address information from a processor. An address comparing part(405) generates a confirmation signal if the processor starts an operation filling an internal cache by receiving the memory cycle address information from the processor interface controller. The buffer cache(408) temporarily stores the data of the fast page mode DRAM. A buffer cache controller(406) updates the buffer cache by executing a burst cycle according to the confirmation signal from the address comparing part. A fast page mode DRAM address controller(404) transfers the memory cycle address needed from a read or write cycle of the fast page mode DRAM to the fast page mode DRAM.

Abstract translation: 目的：提供使用缓冲区高速缓存的快速页面模式DRAM加速器，以通过降低快速同步模式的处理器存储器控制器与提供a快速页面模式DRAM之间的速度差异来使使用快速页面模式DRAM的嵌入式系统的性能最大化 快速页面模式突发循环。 构成：处理器接口控制器（402）从处理器接收存储器控制信号和存储器周期地址信息。 如果处理器通过从处理器接口控制器接收存储器周期地址信息来开始填充内部高速缓存的操作，则地址比较部分（405）产生确认信号。 缓冲区高速缓存（408）临时存储快速页面模式DRAM的数据。 缓冲区高速缓存控制器（406）根据来自地址比较部分的确认信号执行突发周期来更新缓冲区高速缓存。 快速页面模式DRAM地址控制器（404）将从快速页面模式DRAM的读取或写入周期所需的存储器周期地址传送到快速页面模式DRAM。

公开(公告)号：KR100438899B1

公开(公告)日：2004-07-02

申请号：KR1020020031586

申请日：2002-06-05

Applicant: 한국전자통신연구원

Inventor： 박재우 ,  최길영 ,  이규호 ,  이형호

IPC: H04L12/66

Abstract: PURPOSE: A router building a VoIP gateway therein is provided to build the VoIP gateway therein without another gateway, and to add a line card when a gateway function is necessary without another network interface, thereby easily expanding a system at a low price. CONSTITUTION: At least more than one line card(302) is connected to another communication networks, and performs a line interface function and a forwarding function of a network for inputting/outputting packets. A switch fabric(306) switches the packets exchanged between the line cards(302). A gateway(206) is connected to a PSTN, and relays call control signals and voice signals between the PSTN and the line cards(302). A main processor(305) controls the gateway(206) and the line cards(302). The gateway(206) is connected to the PSTN and a digital data communication network, and relays the signals between the PSTN and the digital data communication network without passing through the switch fabric(306).

Abstract translation: 目的：提供一种在其中建立VoIP网关的路由器，用于在没有另一个网关的情况下在其中建立VoIP网关，并且当需要网关功能而不需要另一个网络接口时添加线路卡，由此容易地以低廉的价格扩展系统。 组成：至少一个以上的线路卡（302）连接到另一个通信网络，并且执行用于输入/输出分组的网络的线路接口功能和转发功能。 交换结构（306）交换线卡（302）之间交换的分组。 网关（206）连接到PSTN，并且在PSTN和线卡（302）之间中继呼叫控制信号和语音信号。 主处理器（305）控制网关（206）和线路卡（302）。 网关（206）连接到PSTN和数字数据通信网络，并且在PSTN和数字数据通信网络之间中继信号而不经过交换结构（306）。

公开(公告)号：KR1020040055196A

公开(公告)日：2004-06-26

申请号：KR1020020081821

申请日：2002-12-20

Applicant: 한국전자통신연구원

Inventor： 이재섭 ,  이규호 ,  류근호 ,  김태일

IPC: H04L12/833 ,  H04L12/851

Abstract: PURPOSE: An apparatus and a method for updating a flow class in differential service network are provided to prevent burst congestion due to a specific class and balance load. CONSTITUTION: An inputted packet is processed(401). It is determined whether a delay calculation request message is received from a timer task module, and if the message arrives, a marker is generated(403), delay is calculated(404), the delay sum is inserted and a corresponding table is updated(405). If there is no delay calculation request, a kind of the packet is discriminated(406). If the packet is a marker packet, it is determined whether it is an edge node(408). If it is edge node and a 'D' bit is '1', a class is updated(410). IF the 'D' bit is '0', the delay sum is inserted and the table is updated(412), and then, the marker packet is returned(413).

Abstract translation: 目的：提供一种用于更新差分业务网络中流类的设备和方法，以防止由于特定类和平衡负载引起的突发拥塞。 构成：处理输入的数据包（401）。 确定是否从定时器任务模块接收延迟计算请求消息，并且如果消息到达，则生成标记（403），计算延迟（404），插入延迟和并更新对应的表（ 405）。 如果没有延迟计算请求，则区分一种分组（406）。 如果分组是标记分组，则确定它是否是边缘节点（408）。 如果是边缘节点，并且'D'位为'1'，则更新类（410）。 如果“D”位为“0”，则插入延迟和并更新表（412），然后返回标记数据包（413）。

公开(公告)号：KR1020040050603A

公开(公告)日：2004-06-16

申请号：KR1020020078462

申请日：2002-12-10

Applicant: 한국전자통신연구원

Inventor： 최길영 ,  박재우 ,  이규호 ,  박미룡 ,  석주명 ,  강현주

IPC: H04L12/66

CPC classification number: H04L65/1006 ,  H04L29/06 ,  H04L29/06027 ,  H04L45/00 ,  H04L45/30 ,  H04L45/302 ,  H04L45/3065 ,  H04L65/80 ,  H04M7/006

Abstract: PURPOSE: A method for supplying DiffServ(Differentiated Service)-based VoIP QoS information through a router is provided to add VoIP flow and QoS information to a flow table for performing a packet forwarding process, and to transmit the added information to an intermediate router, thereby supplying QoS information on a VoIP packet by sharing session information. CONSTITUTION: An SIP(Session Initiation Protocol) server(620) and a router(631) have TCP connections to an active QoS control server(610) by using a TCP port(S601,S602,S605). The router(631) informs the QoS control server(610) of router configuration information(S603,S606). The SIP server(620) informs the QoS control server(610) of the configuration information. When the router configuration information and the configuration information of the SIP server(620) are changed, the router(631) and the SIP server(620) transmit a changed configuration information message to the QoS control server(610) again(S607,S608,S609). The QoS control server(610) updates the configuration information.

Abstract translation: 目的：提供一种通过路由器提供基于DiffServ（差分服务）的VoIP QoS信息的方法，用于将流量表和QoS信息添加到流表，用于执行分组转发过程，并将添加的信息发送到中间路由器， 从而通过共享会话信息来提供关于VoIP分组的QoS信息。 构成：通过使用TCP端口（S601，S602，S605），SIP（会话发起协议）服务器（620）和路由器（631）具有到主动QoS控制服务器（610）的TCP连接。 路由器（631）向QoS控制服务器（610）通知路由器配置信息（S603，S606）。 SIP服务器（620）通知QoS控制服务器（610）配置信息。 当路由器配置信息和SIP服务器（620）的配置信息改变时，路由器（631）和SIP服务器（620）再次向QoS控制服务器（610）发送改变的配置信息消息（S607，S608 ，S609）。 QoS控制服务器（610）更新配置信息。

公开(公告)号：KR1020040042702A

公开(公告)日：2004-05-20

申请号：KR1020020071288

申请日：2002-11-15

Applicant: 한국전자통신연구원

Inventor： 이소연 ,  최길영 ,  이규호

IPC: H04L12/24

CPC classification number: H04L41/0622 ,  H04L41/046 ,  H04L41/064 ,  H04L41/147

Abstract: PURPOSE: A network management method using availability is provided to compare an availability prediction value calculated through a reliability analysis before operating a network management system with an availability measurement value calculated during network operation and set a suitable maintenance time again. CONSTITUTION: A network manager calculates an MTBF(Mean Time Between Failures) according to each network management agent, and calculates a prediction availability value using the MTBF(S301). If fault is generated in a specific network management agent before a maintenance time set by the prediction availability value elapses(S303,S304), the network manager receives the notification of the fault generation and calculates an MTBF measurement value of the specific network management agent(S305). The network manager recovers the fault of the specific network management agent(S306). The network manager calculates an MTTR(Mean Time To Repair) measurement value until the recovery of the fault is completed(S307), and calculates a measurement availability value of the specific network management agent(S308). The network manager compares the prediction availability value with the measurement availability value, and sets a less value as a maintenance time again(S309,S310,S314).

Abstract translation: 目的：提供使用可用性的网络管理方法，将网络管理系统运行前的可靠性分析计算出的可用性预测值与网络运行时计算的可用性测量值进行比较，并再次设置合适的维护时间。 规定：网络管理员根据每个网络管理代理计算MTBF（平均故障间隔时间），并使用MTBF计算预测可用性值（S301）。 如果在通过预测可用性值设定的维护时间之前在特定网络管理代理中产生故障（S303，S304），则网络管理器接收故障生成的通知并计算特定网络管理代理的MTBF测量值 S305）。 网络管理员恢复特定网络管理代理的故障（S306）。 网络管理器计算MTTR（平均修复时间）测量值，直到故障恢复完成（S307），并计算特定网络管理代理的测量可用性值（S308）。 网络管理器将预测可用性值与测量可用性值进行比较，并再次设置较小的值作为维护时间（S309，S310，S314）。

公开(公告)号：KR1020030091371A

公开(公告)日：2003-12-03

申请号：KR1020020029306

申请日：2002-05-27

Applicant: 한국전자통신연구원

Inventor： 김현철 ,  이규호 ,  이형호

IPC: G06F12/08

Abstract: PURPOSE: A fast page mode DRAM accelerator using a buffer cache is provided to maximize performance of an embedded system using the fast page mode DRAM by reducing a speed difference between a processor memory controller of a fast synchronous mode and a fast page mode DRAM offering a fast page mode burst cycle. CONSTITUTION: A processor interface controller(402) receives a memory control signal and the memory cycle address information from a processor. An address comparing part(405) generates a confirmation signal if the processor starts an operation filling an internal cache by receiving the memory cycle address information from the processor interface controller. The buffer cache(408) temporarily stores the data of the fast page mode DRAM. A buffer cache controller(406) updates the buffer cache by executing a burst cycle according to the confirmation signal from the address comparing part. A fast page mode DRAM address controller(404) transfers the memory cycle address needed from a read or write cycle of the fast page mode DRAM to the fast page mode DRAM.

Abstract translation: 目的：提供使用缓冲高速缓存的快速页面模式DRAM加速器，以通过降低快速同步模式的处理器存储器控制器与快速页面模式DRAM之间的速度差来最大化使用快速页面模式DRAM的嵌入式系统的性能， 快速页面模式突发周期。 构成：处理器接口控制器（402）从处理器接收存储器控制信号和存储器循环地址信息。 如果处理器通过从处理器接口控制器接收存储器周期地址信息来开始填充内部高速缓存的操作，则地址比较部分（405）产生确认信号。 缓冲器高速缓存（408）临时存储快速页模式DRAM的数据。 缓冲器高速缓存控制器（406）通过根据来自地址比较部分的确认信号执行突发周期来更新缓冲器高速缓存。 快速页面模式DRAM地址控制器（404）将从快速页面模式DRAM的读取或写入周期所需的存储器周期地址传送到快速页面模式DRAM。