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2. 发明授权

US06680942B2 Directory services caching for network peer to peer service locator 失效
标题翻译：用于网络对等服务定位器的目录服务缓存
公开(公告)号：US06680942B2
公开(公告)日：2004-01-20
申请号：US09347512
申请日：1999-07-02
申请人： Andrew Mead , Arunkumar Thippeswamy , John Lautmann , Mark Denny , Scott Bales
发明人： Andrew Mead , Arunkumar Thippeswamy , John Lautmann , Mark Denny , Scott Bales
IPC分类号： H04L1256
CPC分类号： H04L61/1523 , H04L29/12018 , H04L45/00 , H04L61/10 , H04L61/1517
摘要： A new directory service is established for a peer router receiving a data packet from an end station on a local area network connected to a port of the peer router, the peer router hereinafter being referred to as the source router. The data packet is addressed to a destination address. The source router determines that the data packet is to be encapsulated as an encapsulated packet, and the encapsulated packet routed by a peer-to-peer protocol to a destination router. The destination router then transmits the packet onto a local area network to the destination address. The source router locates the proper peer destination router by use of a database. The database is maintained on a server, where the database has entries for destination address, and an entry for a particular destination address gives the address of a peer router capable of routing a packet to that particular destination address. The database is populated by peer routers updating the database with information concerning the destination address which the peer routers can reach. The database on the server is interrogated by the source router to learn the address of a destination peer router, and an encapsulated packet is then transmitted onto a connectionless network for transmission to the destination router. The peer-to-peer routing protocol may be DLSw protocol. The database may be maintained in accordance with the X.500 directory standard. The database may be interrogated using the lightweight data access protocol (LDAP).
摘要翻译：为对等体路由器建立新的目录服务，该对等体路由器从连接到对等路由器的端口的局域网上的终端站接收数据分组，该对等体路由器在下文中称为源路由器。数据包被寻址到目的地址。源路由器确定数据包将被封装为封装的数据包，并且封装的数据包通过对等协议路由到目标路由器。然后目的路由器将分组发送到局域网到目的地址。源路由器通过使用数据库定位正确的对等目的地路由器。数据库被维护在服务器上，其中数据库具有用于目的地地址的条目，并且用于特定目的地地址的条目给出能够将分组路由到该特定目的地地址的对等路由器的地址。数据库由对等路由器填充，通过对等路由器可以达到的目的地址信息更新数据库。源路由器询问服务器上的数据库，以学习目的地对等路由器的地址，然后将封装的数据包发送到无连接网络，以传输到目标路由器。对等路由协议可以是DLSw协议。可以根据X.500目录标准维护数据库。可以使用轻量级数据访问协议（LDAP）来询问数据库。

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