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1. 发明授权

US06850982B1 Methods and apparatus for directing a flow of data between a client and multiple servers 有权
标题翻译：用于在客户机和多个服务器之间引导数据流的方法和装置
公开(公告)号：US06850982B1
公开(公告)日：2005-02-01
申请号：US09741495
申请日：2000-12-19
申请人： Kenneth P. Siegel
发明人： Kenneth P. Siegel
IPC分类号： G06F15/16 , H04L29/08
CPC分类号： H04L67/1002 , H04L67/1014 , H04L67/1023 , H04L67/1029 , H04L67/28 , H04L67/2838
摘要： The invention is directed to techniques for managing communication between a client and multiple servers over a network through an intermediary network device (e.g., content switch). In response to a request for content from a client, the network device selects a server to respond to the request. The network device includes a flow manager that manages the flow of data from the server through the network device to the client. In response to a second request, the network device may select a different server to respond to the request. In this case, the flow manager manages the flow of data from the new server through the network device transparently for the client, so that the client communicates only through the network device regardless of which server is providing the response to the requests.
摘要翻译：本发明涉及用于通过中间网络设备（例如，内容交换机）在网络上管理客户端与多个服务器之间的通信的技术。响应于来自客户端的内容的请求，网络设备选择服务器来响应该请求。网络设备包括流管理器，其管理从服务器通过网络设备到客户端的数据流。响应于第二请求，网络设备可以选择不同的服务器来响应该请求。在这种情况下，流程管理器可以透明地为客户端管理新服务器通过网络设备的数据流，从而客户端只通过网络设备进行通信，无论哪个服务器提供对请求的响应。

2. 发明授权

US07254639B1 Methods and apparatus for directing packets among a group of processors 有权
公开(公告)号：US07254639B1
公开(公告)日：2007-08-07
申请号：US10151132
申请日：2002-05-20
申请人： Kenneth P. Siegel , John J. Krawczyk
发明人： Kenneth P. Siegel , John J. Krawczyk
IPC分类号： G06F15/173
CPC分类号： H04L49/3009
摘要： The invention is directed to techniques for allocating packets received by the flow control processor located on the input/output (I/O) communications interface of the data communications device to a forwarding entity or session processor, chosen from a plurality of session processors, for further processing or routing. The session processors have the same ability to make decisions relating to the processing and routing of the packet as does the flow control processor and can have per second packet processing rates that are different from the flow control processor located on the I/O communications interface of the data communications device. To allocate the packets to the session processors for further processing, the flow control processor processes information located within the header component of the received packet. Based upon the results of this processing, the flow control processor selects a session processor from a plurality of session processors and transfers the packet to the selected session processor for further processing and routing of the packet. The flow control processor on the I/O communications interface, therefore, acts to load balance incoming packets among other session processors, thereby alleviating potential congestion on the port caused by the reception of multiple packets from multiple clients and reducing potential degradation of performance of the data communications device.To allocate the packets to the session processors for further processing, the flow control processor processes information located within the header component of the received packet. Based upon the results of this processing, the flow control processor selects a session processor from a plurality of session processors and transfers the packet to the selected session processor for further processing and routing of the packet. The flow control processor on the I/O communications interface, therefore, acts to load balance incoming packets among other session processors, thereby alleviating potential congestion on the port caused by the reception of multiple packets from multiple clients and reducing potential degradation of performance of the data communications device.

3. 发明授权

US06449647B1 Content-aware switching of network packets 有权
标题翻译：内容感知交换网络数据包
公开(公告)号：US06449647B1
公开(公告)日：2002-09-10
申请号：US09400635
申请日：1999-09-21
申请人： Steven Colby , John J. Krawczyk , Rai Krishnan Nair , Katherine Royce , Kenneth P. Siegel , Richard C. Stevens , Scott Wasson
发明人： Steven Colby , John J. Krawczyk , Rai Krishnan Nair , Katherine Royce , Kenneth P. Siegel , Richard C. Stevens , Scott Wasson
IPC分类号： G06F15173
CPC分类号： H04L67/1023 , H04L29/06 , H04L47/70 , H04L47/724 , H04L47/745 , H04L47/801 , H04L47/805 , H04L47/822 , H04L49/355 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1012 , H04L67/1014 , H04L67/1021 , H04L67/1027 , H04L67/1029 , H04L67/1031 , H04L67/16 , H04L67/18 , H04L69/329 , H04L2029/06054
摘要： A content-aware flow switch intercepts a client content request in an IP network, and transparently directs the content request to a best-fit server. The best-fit server is chosen based on the type of content requested, the quality of service requirements implied by the content request, the degree of load on available servers, network congestion information, and the proximity of the client to available servers. The flow switch detects client-server flows based on the arrival of TCP SYNs and/or HTTP GETs from the client. The flow switch implicitly deduces the quality of service requirements of a flow based on the content of the flow. The flow switch also provides the functionality of multiple physical web servers on a single web server in a way that is transparent to the client, through the use of virtual web hosts and flow pipes.
摘要翻译：内容感知流量交换机拦截IP网络中的客户端内容请求，并将内容请求透明地引导到最适合的服务器。基于所请求的内容类型，内容请求所暗示的服务质量要求，可用服务器上的负载程度，网络拥塞信息以及客户端与可用服务器的接近程度，选择最适合的服务器。流量交换机根据来自客户端的TCP SYN和/或HTTP GET的到达来检测客户端 - 服务器流。流量开关根据流量的内容隐含地推导出流量的服务质量要求。流量开关还通过使用虚拟Web主机和流量管道，以单一Web服务器上的多个物理Web服务器的功能，以客户端透明的方式提供。

4. 发明授权

US6006264A Method and system for directing a flow between a client and a server 失效
标题翻译：用于在客户端和服务器之间引导流的方法和系统
公开(公告)号：US6006264A
公开(公告)日：1999-12-21
申请号：US50524
申请日：1998-03-30
申请人： Steven Colby , John J. Krawczyk , Raj Krishnan Nair , Katherine Royce , Kenneth P. Siegel , Richard C. Stevens , Scott Wasson
发明人： Steven Colby , John J. Krawczyk , Raj Krishnan Nair , Katherine Royce , Kenneth P. Siegel , Richard C. Stevens , Scott Wasson
IPC分类号： H04L12/56 , H04L29/06 , H04L29/08 , G06F13/00
CPC分类号： H04L12/5695 , H04L29/06 , H04L47/724 , H04L47/745 , H04L47/801 , H04L47/805 , H04L47/822 , H04L49/355 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1012 , H04L67/1014 , H04L67/1021 , H04L67/1023 , H04L67/1031 , H04L67/16 , H04L67/18 , H04L2029/06054 , H04L67/1027 , H04L67/1029 , H04L69/329
摘要： A content-aware flow switch intercepts a client content request in an IP network, and transparently directs the content request to a best-fit server. The best-fit server is chosen based on the type of content requested, the quality of service requirements implied by the content request, the degree of load on available servers, network congestion information, and the proximity of the client to available servers. The flow switch detects client-server flows based on the arrival of TCP SYNs and/or HTTP GETs from the client. The flow switch implicitly deduces the quality of service requirements of a flow based on the content of the flow. The flow switch also provides the functionality of multiple physical web servers on a single web server in a way that is transparent to the client, through the use of virtual web hosts and flow pipes.
摘要翻译：内容感知流量交换机拦截IP网络中的客户端内容请求，并将内容请求透明地引导到最适合的服务器。基于所请求的内容类型，内容请求所暗示的服务质量要求，可用服务器上的负载程度，网络拥塞信息以及客户端与可用服务器的接近程度，选择最适合的服务器。流量交换机根据来自客户端的TCP SYN和/或HTTP GET的到达来检测客户端 - 服务器流。流量开关根据流量的内容隐含地推导出流量的服务质量要求。流量开关还通过使用虚拟Web主机和流量管道，以单一Web服务器上的多个物理Web服务器的功能，以客户端透明的方式提供。

5. 发明授权

US5073852A Network protocol translator including method and apparatus for reducing interprocess communication and data exchange overhead 失效
标题翻译：网络协议转换器包括减少进程间通信和数据交换开销的方法和装置
公开(公告)号：US5073852A
公开(公告)日：1991-12-17
申请号：US285761
申请日：1988-12-16
申请人： Kenneth P. Siegel , J. Bradford Parker , John Wroclawski
发明人： Kenneth P. Siegel , J. Bradford Parker , John Wroclawski
IPC分类号： H04L29/06
CPC分类号： H04L69/08
摘要： An method for interprocess communication and data exchange within a computer's software operating system executing on a computer network protocol translator having a central processing unit and associated memory, which includes encapsulating the message or data to be exchanged within certain header and footer information which defines the context of the transmission. Certain program routines are executed in conjunction with this context information which enable the software processes within the operating system to exchange data and to acknowledge the receipt of messages without having to generate and transmit return messages or pre-empt the operating system's execution sequence.
摘要翻译：一种用于在具有中央处理单元和相关联的存储器的计算机网络协议转换器上执行的计算机的软件操作系统内的进程间通信和数据交换的方法，该方法包括在定义上下文的特定报头和页脚信息中封装要交换的消息或数据的传输。某些程序例程与这种上下文信息一起执行，这使得操作系统内的软件过程能够交换数据并确认消息的接收，而不必生成和发送返回消息或者优先考虑操作系统的执行顺序。

6. 发明授权

US07257634B2 Method and apparatus for directing a flow of packets based on request and server attributes 有权
标题翻译：用于根据请求和服务器属性指示数据包流的方法和装置
公开(公告)号：US07257634B2
公开(公告)日：2007-08-14
申请号：US11056031
申请日：2005-02-11
申请人： Steven Colby , John J. Krawczyk , Raj Krishnan Nair , Katherine Royce , Kenneth P. Siegel , Richard C. Stevens , Scott Wasson
发明人： Steven Colby , John J. Krawczyk , Raj Krishnan Nair , Katherine Royce , Kenneth P. Siegel , Richard C. Stevens , Scott Wasson
IPC分类号： G06F15/173 , G06F15/177
CPC分类号： H04L67/1023 , H04L29/06 , H04L47/70 , H04L47/724 , H04L47/745 , H04L47/801 , H04L47/805 , H04L47/822 , H04L49/355 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1012 , H04L67/1014 , H04L67/1021 , H04L67/1027 , H04L67/1029 , H04L67/1031 , H04L67/16 , H04L67/18 , H04L69/329 , H04L2029/06054
摘要： A content-aware flow switch intercepts a client content request in an IP network, and transparently directs the content request to a best-fit server. The best-fit server is chosen based on the type of content requested, the quality of service requirements implied by the content request, the degree of load on available servers, network congestion information, and the proximity of the client to available servers. The flow switch detects client-server flows based on the arrival of TCP SYNs and/or HTTP GETs from the client. The flow switch implicitly deduces the quality of service requirements of a flow based on the content of the flow. The flow switch also provides the functionality of multiple physical web servers on a single web server in a way that is transparent to the client, through the use of virtual web hosts and flow pipes.
摘要翻译：内容感知流量交换机拦截IP网络中的客户端内容请求，并将内容请求透明地引导到最适合的服务器。基于所请求的内容类型，内容请求所暗示的服务质量要求，可用服务器上的负载程度，网络拥塞信息以及客户端与可用服务器的接近程度，选择最适合的服务器。流量交换机根据来自客户端的TCP SYN和/或HTTP GET的到达来检测客户端 - 服务器流。流量开关根据流量的内容隐含地推导出流量的服务质量要求。流量开关还通过使用虚拟Web主机和流量管道，以单一Web服务器上的多个物理Web服务器的功能，以客户端透明的方式提供。

7. 发明授权

US07487250B2 Methods and apparatus for directing a flow of data between a client and multiple servers 有权
标题翻译：用于在客户机和多个服务器之间引导数据流的方法和装置
公开(公告)号：US07487250B2
公开(公告)日：2009-02-03
申请号：US11017096
申请日：2004-12-20
申请人： Kenneth P. Siegel
发明人： Kenneth P. Siegel
IPC分类号： G06F15/16
CPC分类号： G11B5/584 , G11B15/08 , G11B15/60
摘要： The invention is directed to techniques for managing communication between a client and multiple servers over a network through an intermediary network device (e.g., content switch). In response to a request for content from a client, the network device selects a server to respond to the request. The network device includes a flow manager that manages the flow of data from the server through the network device to the client. In response to a second request, the network device may select a different server to respond to the request. In this case, the flow manager manages the flow of data from the new server through the network device transparently for the client, so that the client communicates only through the network device regardless of which server is providing the response to the requests.
摘要翻译：本发明涉及用于通过中间网络设备（例如，内容交换机）在网络上管理客户端与多个服务器之间的通信的技术。响应于来自客户端的内容的请求，网络设备选择服务器来响应该请求。网络设备包括流管理器，其管理从服务器通过网络设备到客户端的数据流。响应于第二请求，网络设备可以选择不同的服务器来响应该请求。在这种情况下，流程管理器可以透明地为客户端管理新服务器通过网络设备的数据流，从而客户端只通过网络设备进行通信，无论哪个服务器提供对请求的响应。

8. 发明授权

US06862624B2 Method and apparatus for directing a flow of packets based on request and server attributes 有权
标题翻译：用于根据请求和服务器属性指示数据包流的方法和装置
公开(公告)号：US06862624B2
公开(公告)日：2005-03-01
申请号：US10197339
申请日：2002-07-17
申请人： Steven Colby , John J. Krawczyk , Raj Krishnan Nair , Katherine Royce , Kenneth P. Siegel , Richard C. Stevens , Scott Wasson
发明人： Steven Colby , John J. Krawczyk , Raj Krishnan Nair , Katherine Royce , Kenneth P. Siegel , Richard C. Stevens , Scott Wasson
IPC分类号： H04L12/56 , H04L29/06 , H04L29/08 , G06F15/173
CPC分类号： H04L67/1023 , H04L29/06 , H04L47/70 , H04L47/724 , H04L47/745 , H04L47/801 , H04L47/805 , H04L47/822 , H04L49/355 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1012 , H04L67/1014 , H04L67/1021 , H04L67/1027 , H04L67/1029 , H04L67/1031 , H04L67/16 , H04L67/18 , H04L69/329 , H04L2029/06054
摘要： A content-aware flow switch intercepts a client content request in an IP network, and transparently directs the content request to a best-fit server. The best-fit server is chosen based on the type of content requested, the quality of service requirements implied by the content request, the degree of load on available servers, network congestion information, and the proximity of the client to available servers. The flow switch detects client-server flows based on the arrival of TCP SYNs and/or HTTP GETs from the client. The flow switch implicitly deduces the quality of service requirements of a flow based on the content of the flow. The flow switch also provides the functionality of multiple physical web servers on a single web server in a way that is transparent to the client, through the use of virtual web hosts and flow pipes.
摘要翻译：内容感知流量交换机拦截IP网络中的客户端内容请求，并将内容请求透明地引导到最适合的服务器。基于所请求的内容类型，内容请求所暗示的服务质量要求，可用服务器上的负载程度，网络拥塞信息以及客户端与可用服务器的接近程度，选择最适合的服务器。流量交换机根据来自客户端的TCP SYN和/或HTTP GET的到达来检测客户端 - 服务器流。流量开关根据流量的内容隐含地推导出流量的服务质量要求。流量开关还通过使用虚拟Web主机和流量管道，以单一Web服务器上的多个物理Web服务器的功能，以客户端透明的方式提供。

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