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41.发明申请公开(公告)号：US20120179814A1
公开(公告)日：2012-07-12
申请号：US13419723
申请日：2012-03-14
IPC分类号： G06F15/173
CPC分类号： H04L43/0805 , H04L12/14 , H04L29/12066 , H04L29/12113 , H04L41/5083 , H04L41/509 , H04L61/1511 , H04L61/1541 , H04L67/02 , H04L67/06 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1027 , H04L67/1038 , H04L67/1095 , H04L69/329
摘要： A method for determining metrics of a content delivery and global traffic management network provides service metric probes that determine the service availability and metric measurements of types of services provided by a content delivery machine. Latency probes are also provided for determining the latency of various servers within a network. The latency probe calculates, for example, the latency from its location to a client's location using the round trip time for sending a packet to the client to obtain the latency value for that client. DNS servers use the latency test results, along with traffic weightings, to determine a server to return for a given DNS name.
摘要翻译： 用于确定内容传递和全球流量管理网络的度量的方法提供了确定由内容递送机器提供的服务类型的服务可用性和度量度量的服务度量探测器。 还提供延迟探测以确定网络中各种服务器的延迟。 延迟探测器使用向客户端发送数据包的往返时间来计算例如从其位置到客户端位置的延迟，以获得该客户端的延迟值。 DNS服务器使用延迟测试结果以及流量权重来确定服务器返回给定的DNS名称。
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公开(公告)号：US08176203B1
公开(公告)日：2012-05-08
申请号：US13275115
申请日：2011-10-17
IPC分类号： G06F15/173
CPC分类号： H04L63/102 , G06Q20/401 , H04L63/12 , H04L2463/101
摘要： Techniques are provided for using the mobility support features of IPv6 to allow client and server nodes to communicate without the continuing intervention of a load-balancing node that selected the server node. A load-balancing node intercepts a TCP SYN packet addressed to a virtual IP address. The load-balancing node selects a server node from among multiple server nodes, and sends the packet toward the server node. The server node sends an IPv6 packet toward the client node. The packet contains a Binding Update option that specifies the virtual IP address as a Home Address. This information causes the client node to replace destination addresses in outgoing IP packets so that packets that the client node would have sent toward the virtual IP address are sent toward the selected server node's IP address instead. Consequently, the IP packets are routed toward the selected server node instead of the load-balancing node.
摘要翻译： 提供了使用IPv6的移动性支持功能的技术，以允许客户端和服务器节点进行通信，而不需要选择服务器节点的负载平衡节点的持续干预。 负载平衡节点拦截寻址到虚拟IP地址的TCP SYN数据包。 负载平衡节点从多个服务器节点中选择服务器节点，并将数据包发送到服务器节点。 服务器节点向客户机节点发送一个IPv6数据包。 该分组包含一个绑定更新选项，该选项将虚拟IP地址指定为归属地址。 该信息使客户机节点替换出站IP数据包中的目的地址，使客户机节点向虚拟IP地址发送的数据包将被发送到所选服务器节点的IP地址。 因此，IP分组被路由到所选择的服务器节点而不是负载平衡节点。
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公开(公告)号：US20120110148A1
公开(公告)日：2012-05-03
申请号：US13346902
申请日：2012-01-10
IPC分类号： G06F15/177
CPC分类号： H04L63/1408 , H04L29/12066 , H04L29/12113 , H04L29/12132 , H04L29/12811 , H04L61/1511 , H04L61/1541 , H04L61/1552 , H04L61/6009 , H04L63/1458 , H04L67/02 , H04L67/06 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1021 , H04L67/1095 , H04L67/2852 , H04L67/289 , H04L69/329 , H04L2029/06054
摘要： A distributed DNS network includes a central origin server that actually controls the zone, and edge DNS cache servers configured to cache the DNS content of the origin server. The edge DNS cache servers are published as the authoritative servers for customer domains instead of the origin server. When a request for a DNS record results in a cache miss, the edge DNS cache servers get the information from the origin server and cache it for use in response to future requests. Multiple edge DNS cache servers can be deployed at multiple locations. Since an unlimited number of edge DNS cache servers can be deployed, the system is highly scalable. The disclosed techniques protect against DoS attacks, as DNS requests are not made to the origin server directly.
摘要翻译： 分布式DNS网络包括实际控制区域的中央源服务器，以及配置为缓存原始服务器的DNS内容的边缘DNS缓存服务器。 边缘DNS缓存服务器作为客户域的权威服务器而不是源服务器发布。 当对DNS记录的请求导致高速缓存未命中时，边缘DNS缓存服务器从源服务器获取信息并缓存它以用于响应将来的请求。 多个边缘DNS缓存服务器可以部署在多个位置。 由于可以部署无限数量的边缘DNS缓存服务器，因此系统具有高度可扩展性。 所公开的技术防止DoS攻击，因为DNS请求不直接发送到原始服务器。
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公开(公告)号：US08145765B2
公开(公告)日：2012-03-27
申请号：US12558351
申请日：2009-09-11
IPC分类号： G06F15/16 , G06F15/173 , G06F15/177
CPC分类号： H04L47/745 , G06F9/50 , G06F9/5061 , H04L67/1002 , H04L67/1008 , H04L67/1017 , H04L67/1029 , Y10S707/99932
摘要： A method and mechanism for a distributed on-demand computing system. The system automatically provisions distributed computing servers with customer application programs. The parameters of each customer application program are taken into account when a server is selected for hosting the program. The system monitors the status and performance of each distributed computing server. The system provisions additional servers when traffic levels exceed a predetermined level for a customer's application program and, as traffic demand decreases to a predetermined level, servers can be un-provisioned and returned back to a server pool for later provisioning. The system tries to fill up one server at a time with customer application programs before dispatching new requests to another server. The customer is charged a fee based on the usage of the distributed computing servers.
摘要翻译： 一种分布式点播计算系统的方法和机制。 系统自动为分布式计算服务器提供客户应用程序。 当选择服务器来承载程序时，将考虑每个客户应用程序的参数。 系统监控每个分布式计算服务器的状态和性能。 当流量级别超过客户应用程序的预定水平时，该系统提供额外的服务器，并且随着流量需求降低到预定水平，服务器可以被不配置并返回到服务器池以备以后供应。 在将新请求发送到另一个服务器之前，系统会一次尝试填写一个服务器与客户应用程序。 客户根据分布式计算服务器的使用费用收取费用。
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公开(公告)号：US20120016933A1
公开(公告)日：2012-01-19
申请号：US13244373
申请日：2011-09-24
IPC分类号： G06F15/16
CPC分类号： H04L67/325 , H04L63/102 , H04L63/12 , H04L67/02 , H04L67/1004 , H04L67/2842 , H04L2463/101
摘要： A dynamic image delivery system receives a client request for an image at an image caching server. The image caching server measures the client's network access speed and looks for an appropriate pre-rendered copy of the requested image that is rendered for the client's network access speed in local storage. If the appropriate rendered copy is found, then the image caching server sends the rendered image to the client. If it is not found, then the image caching server dynamically renders a copy of the image and sends it to the client.
摘要翻译： 动态图像传送系统在图像缓存服务器处接收对图像的客户端请求。 图像缓存服务器测量客户端的网络访问速度，并查找为本地存储中的客户端网络访问速度呈现的请求映像的适当预呈现副本。 如果找到适当的渲染副本，则图像缓存服务器将呈现的映像发送到客户端。 如果没有找到，则图像缓存服务器会动态呈现图像的副本并将其发送给客户端。
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46.发明授权Transparent session persistence management by a cache server in a content delivery network 有权通过内容传送网络中的缓存服务器进行的透明会话持久性管理公开(公告)号：US07937477B1
公开(公告)日：2011-05-03
申请号：US11149741
申请日：2005-06-09
IPC分类号： G06F15/173
CPC分类号： H04L63/102 , G06Q20/401 , H04L63/12 , H04L2463/101
摘要： A method and apparatus for establishing session persistence between a client and an origin server are provided. The session persistence can be managed by an intermediate cache server. The persistence is established by inserting an identifier and origin server address in a cookie or URL. Alternatively, the persistence is established by a table mapping a source IP address or a session ID to a specific origin server. Subsequent requests from the same client are mapped to the same origin server using these methods of establishing persistence.
摘要翻译： 提供了一种用于在客户机和源服务器之间建立会话持久性的方法和装置。 会话持久性可以由中间缓存服务器管理。 通过在cookie或URL中插入标识符和源服务器地址来建立持久性。 或者，通过将源IP地址或会话ID映射到特定原始服务器的表来建立持久性。 使用这些建立持久性的方法将来自同一客户机的后续请求映射到相同的源服务器。
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公开(公告)号：US07925713B1
公开(公告)日：2011-04-12
申请号：US09648420
申请日：2000-08-23
IPC分类号： G06F15/16 , G06F15/173 , G06F9/46 , G06F11/00
CPC分类号： H04L67/02 , H04L47/125 , H04L67/1002
摘要： A method for operating a network of point of presence servers includes receiving a request from a user for a web page at a first web address, determining traffic loads of a plurality of customer web servers, determining a customer web server from the plurality of customer web servers, the customer web server having a traffic load lower than traffic loads of remaining customer web servers, directing the request from the user to the customer web server, receiving a request from the user for static content on the web page at a second web address, determining the point of presence server from the network of point of presence servers that is appropriate for the request, the point of presence server having service metrics more appropriate than service metrics of remaining point of presence servers from the network.
摘要翻译： 用于操作在场服务点的网络的方法包括从第一网址接收来自用户的网页的请求，确定多个客户web服务器的流量负载，从多个客户网络确定客户web服务器 服务器，客户web服务器的流量负载低于剩余客户web服务器的流量负载，将用户的请求引导到客户web服务器，在第二网址从网页上接收来自用户静态内容的请求 从适合于该请求的存在服务器点的网络确定呈现服务器点，所述在场服务器具有比来自网络的存在服务器的剩余点的服务度量更适合的服务度量。
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公开(公告)号：US07590739B2
公开(公告)日：2009-09-15
申请号：US11089982
申请日：2005-03-24
IPC分类号： G06F15/16 , G06F15/173 , G06F15/177
CPC分类号： H04L47/745 , G06F9/50 , G06F9/5061 , H04L67/1002 , H04L67/1008 , H04L67/1017 , H04L67/1029 , Y10S707/99932
摘要： A method and mechanism for a distributed on-demand computing system. The system automatically provisions distributed computing servers with customer application programs. The parameters of each customer application program are taken into account when a server is selected for hosting the program. The system monitors the status and performance of each distributed computing server. The system provisions additional servers when traffic levels exceed a predetermined level for a customer's application program and, as traffic demand decreases to a predetermined level, servers can be un-provisioned and returned back to a server pool for later provisioning. The system tries to fill up one server at a time with customer application programs before dispatching new requests to another server. The customer is charged a fee based on the usage of the distributed computing servers.
摘要翻译： 一种分布式点播计算系统的方法和机制。 系统自动为分布式计算服务器提供客户应用程序。 当选择服务器来承载程序时，将考虑每个客户应用程序的参数。 系统监控每个分布式计算服务器的状态和性能。 当流量级别超过客户应用程序的预定水平时，该系统提供额外的服务器，并且随着流量需求降低到预定水平，服务器可以被不配置并返回到服务器池以备以后供应。 在将新请求发送到另一个服务器之前，系统会一次尝试填写一个服务器与客户应用程序。 客户根据分布式计算服务器的使用费用收取费用。
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公开(公告)号：US06754699B2
公开(公告)日：2004-06-22
申请号：US09909651
申请日：2001-07-19
IPC分类号： G06F1516
CPC分类号： H04L69/329 , G06F9/505 , G06F2209/5016 , H04L12/14 , H04L29/12066 , H04L29/12113 , H04L41/5029 , H04L41/5038 , H04L41/5064 , H04L41/5083 , H04L41/509 , H04L43/00 , H04L43/0829 , H04L43/0852 , H04L43/12 , H04L61/1511 , H04L61/1541 , H04L67/02 , H04L67/06 , H04L67/1002 , H04L67/1006 , H04L67/1008 , H04L67/101 , H04L67/1021 , H04L67/1027 , H04L67/1034 , H04L67/1038 , H04L67/1095 , H04L67/142 , H04L67/28 , H04L67/2847 , H04L67/2852 , H04L67/289 , H04L2029/06054
摘要： A content delivery and global traffic management network system provides a plurality of caching servers connected to a network. The caching servers host customer content that can be cached and stored, and respond to requests for Web content from clients. If the requested content does not exist in memory or on disk, it generates a request to an origin site to obtain the content. A DNS Server (SPD) load balances network requests among customer Web servers and directs client requests for hosted customer content to the appropriate caching server which is selected by choosing the caching server that is closest to the user, is available, and is the least loaded. SPD also supports persistence and returns the same IP addresses, for a given client. The entire Internet address space is broken up into multiple zones. Each zone is assigned to a group of SPD servers. If an SPD server gets a request from a client that is not in the zone assigned to that SPD server, it forwards the request to the SPD server assigned to that zone. Servers write information about the content delivered to log files that are picked up by a log server.
摘要翻译： 内容传递和全球流量管理网络系统提供连接到网络的多个缓存服务器。 缓存服务器托管可缓存和存储的客户内容，并响应客户端对Web内容的请求。 如果请求的内容不存在于内存或磁盘上，则会向原始站点生成请求以获取内容。 DNS服务器（SPD）负载平衡客户Web服务器之间的网络请求，并将托管客户内容的客户端请求定向到通过选择最接近用户的缓存服务器所选择的适当缓存服务器，可用，并且是最少加载 。 对于给定的客户端，SPD还支持持久性并返回相同的IP地址。 整个互联网地址空间被分解成多个区域。 每个区域都分配给一组SPD服务器。 如果SPD服务器从不在分配给该SPD服务器的区域的客户端获取请求，则会将该请求转发到分配给该区域的SPD服务器。 服务器将关于传递给由日志服务器拾取的日志文件的内容写入信息。
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公开(公告)号：US08612564B2
公开(公告)日：2013-12-17
申请号：US13353158
申请日：2012-01-18
IPC分类号： G06F15/173
CPC分类号： H04L67/1002 , G06F9/505 , G06F2209/5016 , G06F2209/508 , H04L29/12066 , H04L29/12132 , H04L41/5029 , H04L41/5038 , H04L41/509 , H04L43/00 , H04L43/0829 , H04L43/0852 , H04L43/12 , H04L61/1511 , H04L61/1552 , H04L67/02 , H04L67/101 , H04L67/1036 , H04L67/142
摘要： A method and apparatus for serving content requests using global and local load balancing techniques is provided. Web site content is cached using two or more point of presences (POPs), wherein each POP has at least one DNS server. Each DNS server is associated with the same anycast IP address. A domain name resolution request is transmitted to the POP in closest network proximity for resolution based on the anycast IP address. Once the domain name resolution request is received at a particular POP, local load balancing techniques are performed to dynamically select the appropriate Web server at the POP for use in resolving the domain name resolution request. Approaches are described for handling bursts of traffic at a particular POP, security, and recovering from the failure of various components of the system.
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