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公开(公告)号：US09723093B2
公开(公告)日：2017-08-01
申请号：US14225261
申请日：2014-03-25
CPC分类号： H04L67/28 , H04L63/08 , H04L67/1002 , H04L67/1006 , H04L67/1025 , H04L67/1034 , H04L67/42
摘要： Disclosed is a system for servers to redirect client requests to other servers in order to distribute client traffic among the servers. A client is assigned to a server although the client may be unaware of that assignment. When the client accesses a server, a server possibly identified to the client by a name service, the server checks the client's assignment. If the client is not assigned to this server, then in some scenarios this server redirects the client to its assigned server. The client responds by sending its request to the assigned server. In other scenarios, the first server accessed by the client proxies the client's traffic to the assigned server. A database is kept of client-to-server assignments. If the present load distribution is less than ideal (e.g., clients are assigned to an unavailable server), then the assignment database is updated to reflect how the load should be distributed.
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公开(公告)号：US09432239B2
公开(公告)日：2016-08-30
申请号：US13847280
申请日：2013-03-19
CPC分类号： H04L29/06197 , H04L29/06027 , H04L29/12009 , H04L29/12207 , H04L29/12594 , H04L61/20 , H04L61/3085 , H04L65/1006
摘要： A system and method for uniquely identifying an SIP device extends the SIP communications protocol with an end point identifier, carried for example in the header of an SIP transmission. The end point identifier is useful for routing, registration, subscription, and authentication. The end point (device) of a given user epid can be uniquely identified by creating a key from an epid and a user's address-of-record (URI). This in turn enables improved connection management and security association management when the connections/IP addresses are transient, such as when HTTPS tunneling is used.
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