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    • 2. 发明授权
    • Method of advertising DNS server address and routing method thereby
    • 从而广告DNS服务器地址和路由方法
    • US07436860B2
    • 2008-10-14
    • US10808607
    • 2004-03-25
    • Hak-goo LeeYoung-keun KimSun-woo KimSang-hyun Shin
    • Hak-goo LeeYoung-keun KimSun-woo KimSang-hyun Shin
    • H04J3/02
    • H04L45/02H04L45/04
    • A method of advertising an address of a domain name service (DNS) server present, for example, on an IPv6 network by searching a location of the DNS server on a router network subnet using a dynamic routing protocol, storing link state information of the router indicating the DNS server existence in the router subnet, in a link state advertisement of the router, and delivering the link state advertisement to all routers within an autonomous system, to which the router belongs. When the router having the location of the DNS server is requested by another router to provide the DNS server address, the router replies to the requesting router, and the requesting router receiving the reply, advertises a router advertisement message containing the DNS server address to a subnet to which the requesting router belongs. Accordingly, a network can be set without manually setting DNS server addresses at hosts.
    • 通过使用动态路由协议在路由器网络子网上搜索DNS服务器的位置来存在例如在IPv6网络上呈现域名服务(DNS)服务器的地址的方法,存储路由器的链路状态信息 指示路由器子网中的DNS服务器存在于路由器的链路状态通告中,并将链路状态通告发送到路由器所属的自治系统内的所有路由器。 当具有DNS服务器的位置的路由器被另一个路由器请求提供DNS服务器地址时,路由器回复请求路由器,接收回复的请求路由器将包含DNS服务器地址的路由器通告消息通告给 请求路由器所属的子网。 因此,可以设置网络,而无需在主机手动设置DNS服务器地址。
    • 6. 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。
    • 9. 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。