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    • 2. 发明授权
    • Method for path MTU discovery on IP network and apparatus thereof
    • IP网络路径MTU发现方法及其设备
    • US07451227B2
    • 2008-11-11
    • US10401731
    • 2003-03-31
    • Hak-goo LeeYoung-keun KimSun-woo KimYong-jun Lim
    • Hak-goo LeeYoung-keun KimSun-woo KimYong-jun Lim
    • G06F15/16
    • H04L69/16H04L69/166H04L69/167
    • A method for more efficiently operating a network, and more particularly, for discovery of a path maximum transmission unit (PMTU) between nodes on an IP network, is provided. The method includes (a) comparing the size of a received packet with a maximum transmission unit (MTU) of a next link; and (b) if the size of the received packet is greater than the MTU of the next link, generating an error message, transmitting the generated error message to a source node, generating a test message of the size of the MTU of the next link, and transmitting the generated test message to a destination node. According to the PMTU discovery method, a PMTU can be determined in a shorter time, and it is possible to minimize the use of network resources.
    • 提供了一种用于更有效地操作网络的方法,更具体地,用于发现IP网络上的节点之间的路径最大传输单元(PMTU)。 该方法包括:(a)将接收到的分组的大小与下一个链路的最大传输单元(MTU)进行比较; 和(b)如果所接收的分组的大小大于下一个链路的MTU,则生成错误消息,将生成的错误消息发送到源节点,生成下一个链路的MTU大小的测试消息 ,并将生成的测试消息发送到目的地节点。 根据PMTU发现方法,可以在更短的时间内确定PMTU,并且可以最小化网络资源的使用。
    • 4. 发明申请
    • Method, apparatus, and medium for servicing clients in remote areas
    • 用于在偏远地区为客户提供服务的方法,设备和介质
    • US20050267779A1
    • 2005-12-01
    • US11139604
    • 2005-05-31
    • Hak-goo LeeMin-Jae Lee
    • Hak-goo LeeMin-Jae Lee
    • G06F15/16H04L12/16H04L29/06H04L29/08G06F17/60
    • H04L67/125G06Q30/0601H04L63/08H04L67/36
    • A remote control apparatus, method, and medium for enabling a server to control a plurality of clients located in remote areas is provided. The method includes: switching an environment of a server by loading display information stored in one of a plurality of backup buffers in a display processing module of the server; and transmitting the display information to one of the plurality of clients if there is a request for the display information issued by the one of the plurality of clients. Accordingly, it is possible to enable the plurality of clients to be simultaneously served by the server, regardless of which types of remote control protocols and which types of OSs the plurality of clients use, by repeatedly performing interrupt service routines for backing up display information of the plurality of clients to the respective backup buffers or loading the display information of the plurality of clients into the server.
    • 提供了一种用于使服务器能够控制位于偏远区域中的多个客户端的远程控制装置,方法和介质。 该方法包括:通过将存储在多个备份缓冲器之一中的显示信息加载到服务器的显示处理模块中来切换服务器的环境; 以及如果存在由所述多个客户端中的一个客户端发出的显示信息的请求,则将所述显示信息发送到所述多个客户端中的一个。 因此,通过重复执行用于备份显示信息的显示信息的中断服务程序,可以使多个客户端能够由服务器同时服务,而不管多个客户端使用哪种类型的远程控制协议和哪些类型的OS 多个客户端到相应的备份缓冲器或将多个客户端的显示信息加载到服务器中。
    • 6. 发明授权
    • Handover method in WLAN and mobile node device performing handover in WLAN
    • WLAN和移动节点设备中的切换方法在WLAN中执行切换
    • US07599330B2
    • 2009-10-06
    • US10771508
    • 2004-02-05
    • Jae-hwang LeePyung-soo KimHak-goo Lee
    • Jae-hwang LeePyung-soo KimHak-goo Lee
    • H04W4/00H04W36/00
    • H04W36/12H04W36/18H04W60/04
    • A handover method in a wireless local area network (WLAN) environment, a mobile node device that carries out a handover in a WLAN environment, and a beacon signal structure are provided. The handover method involves receiving a beacon signal containing access router identification information; and carrying out a handover based on the access router identification information contained in the beacon signal. The mobile node device includes a beacon signal reception unit for receiving a beacon signal containing access router identified information, a determination unit for comparing access router identification information from the beacon signal with that of a previous access router and a handover performing unit for carrying out a handover based on a result of the determination from the determination unit. The beacon signal structure, which is used for carrying out a handover in a WLAN environment, includes a reserved field into which access router identification information is inserted.
    • 提供了无线局域网(WLAN)环境中的切换方法,在WLAN环境中执行切换的移动节点设备和信标信号结构。 切换方法包括:接收包含接入路由器识别信息的信标信号; 并且基于包含在信标信号中的接入路由器标识信息进行切换。 移动节点设备包括:信标信号接收单元,用于接收包含接入路由器识别信息的信标信号;确定单元,用于将来自信标信号的接入路由器标识信息与先前接入路由器的接入路由器标识信息进行比较;以及切换执行单元, 基于来自确定单元的确定的结果进行切换。 用于在WLAN环境中执行切换的信标信号结构包括其中插入有访问路由器标识信息的保留字段。
    • 10. 发明授权
    • Home agent management apparatus and method
    • 家庭代理管理设备和方法
    • US07626957B2
    • 2009-12-01
    • US10751436
    • 2004-01-06
    • Hak-goo LeeYoung-keun KimSun-woo KimSang-hyun Shin
    • Hak-goo LeeYoung-keun KimSun-woo KimSang-hyun Shin
    • H04Q7/00
    • H04W8/12H04L69/167H04W80/04H04W88/14
    • A home agent management apparatus and method for routing a packet using a home network equipment as a home agent in a mobile Inter Protocol version 6 (IPv6) are provided. The home agent management apparatus includes a packet analyzer, which receives a packet and analyzes the packet; a database, which stores information indicating whether a home agent of a home network operates normally according to the result of the analysis; and a home agent function executor, which performs a home agent function in place of the home agent when the home agent does not operate normally. Accordingly, a load concentrated on a home agent of an Internet Service Provider (ISP) can be split.
    • 提供了一种在移动互联协议版本6(IPv6)中使用家庭网络设备作为归属代理路由分组的归属代理管理装置和方法。 归属代理管理装置包括分组分析器,其接收分组并分析分组; 数据库,其存储指示家庭网络的归属代理是否根据分析结果正常工作的信息; 以及归属代理功能执行器,当归属代理不正常地操作时,其执行归属代理功能代替归属代理。 因此,集中在因特网服务提供商(ISP)的归属代理上的负载可以被拆分。