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    • 1. 发明申请
    • Content based data packet routing using labels
    • 基于内容的数据包路由使用标签
    • US20060165053A1
    • 2006-07-27
    • US11040849
    • 2005-01-21
    • Sudeept BhatnagarSamrat GangulyRauf IzmailovYasuhiro Miyao
    • Sudeept BhatnagarSamrat GangulyRauf IzmailovYasuhiro Miyao
    • H04L12/28
    • H04L67/02H04L45/306H04L45/38H04L67/327
    • Disclosed is a content based router, system and method of operation. Upon receipt of a data packet at in ingress router, the ingress router matches the content of the data packet against stored user subscriptions. In one embodiment, the content is described using XML data and the user subscriptions are defined by XML queries. The router assigns a routing label to the data packet based on the matching, and transmits the data packet to a second network router. Intermediate routers along the packets path then use the assigned label in combination with stored routing tables in order to determine next hop routing. Upon receipt at an egress router, the content of the message is matched against user subscriptions for those users serviced by the egress router, and the egress router provides the data packet to those end users whose subscriptions match the content. The assigned routing labels may define routing paths or routing trees.
    • 公开了一种基于内容的路由器,系统和操作方法。 在入口路由器接收到数据包时,入口路由器将数据包的内容与存储的用户订阅相匹配。 在一个实施例中,使用XML数据描述内容,并且用户订阅由XML查询定义。 路由器根据匹配对数据包分配路由标签,并将数据包发送到第二个网络路由器。 沿着分组路径的中间路由器然后使用分配的标签与存储的路由表的组合,以便确定下一跳路由。 在出口路由器接收到消息的内容与由出口路由器服务的那些用户的用户订阅进行匹配,并且出口路由器向订阅与内容匹配的最终用户提供数据包。 分配的路由标签可以定义路由路径或路由树。
    • 2. 发明申请
    • Data network information distribution
    • 数据网络信息分发
    • US20070061282A1
    • 2007-03-15
    • US11226001
    • 2005-09-14
    • Samrat GangulySudeept BhatnagarRauf IzmailovYasuhiro Miyao
    • Samrat GangulySudeept BhatnagarRauf IzmailovYasuhiro Miyao
    • G06F17/30
    • H04L67/26H04L29/06027H04L65/4084H04L65/4092H04L67/1002H04L67/1014H04L67/1017H04L67/2842
    • Disclosed is a method and apparatus for delivering information of interests from content providers to clients via a data network. A network architecture includes two types of edge servers, referred to as forward proxy servers and reverse proxy servers. The forward proxy servers are assigned to serve particular clients with respect to particular information and the reverse proxy servers are assigned to serve particular forward proxy servers with respect to particular information. Each of the forward proxy servers stores information identifiers associated with information for which the forward proxy server is assigned to serve to at least one client. Each of the reverse proxy servers stores information identifiers and the associated forward proxy servers that the reverse proxy server is assigned to serve with respect to information associated with the information identifiers. Upon receipt of updated content, the reverse proxy servers send the updated content to those forward proxy servers that the reverse proxy server is assigned to serve with respect to the received updated content. The forward proxy servers then provide the updated content to the clients to which they are assigned, either by responding to a request from those clients or by pushing the information to those clients. Network load balancing is provided by a controller network node for controlling the assignments of clients to forward proxy servers and the assignments of forward proxy servers to reverse proxy servers.
    • 公开了一种通过数据网络将内容提供商的兴趣信息传递给客户端的方法和装置。 网络架构包括两种类型的边缘服务器,称为转发代理服务器和反向代理服务器。 分配前向代理服务器以针对特定信息为特定客户端服务,并且分配反向代理服务器以针对特定信息为特定的前向代理服务器服务。 每个前向代理服务器存储与分配了前向代理服务器的信息相关联的信息标识符,以向至少一个客户端提供服务。 每个逆向代理服务器存储信息标识符和相关联的转发代理服务器,反向代理服务器被分配用于与信息标识符相关联的信息。 在接收到更新的内容之后,反向代理服务器将更新的内容发送到相对于所接收的更新内容而被分配为反向代理服务器来服务的那些转发代理服务器。 然后,转发代理服务器通过响应来自这些客户端的请求或者将信息推送到这些客户端来向被分配给它们的客户端提供更新的内容。 网络负载平衡由控制器网络节点提供,用于控制客户端转发代理服务器的分配以及转发代理服务器到逆向代理服务器的分配。