公开(公告)号：US06950862B1

公开(公告)日：2005-09-27

申请号：US09850176

申请日：2001-05-07

申请人： Sanil Kumar Puthiyandyil ,  Janakiraman Senthilnathan ,  Rajesh Ramankutty ,  Shaji Radhakrishnan

发明人： Sanil Kumar Puthiyandyil ,  Janakiraman Senthilnathan ,  Rajesh Ramankutty ,  Shaji Radhakrishnan

IPC分类号： G06F15/177 ,  H04L29/06

CPC分类号： H04L67/14 ,  H04L69/24

摘要： A system and method are shown for offloading a computational service on a point-to-point connection. When a tunnel initiator network device, such as a Level 2 Tunneling Protocol Access Concentrator (LAC), detects a tunnel client network device, the LAC sets up a tunnel connection with a tunnel endpoint network device, such a Level 2 Tunneling Protocol Network Server (LNS). During a process of establishing a call session on the tunnel connection, the LAC sends its compression capabilities to the LNS. When the LNS detects that the LAC is capable of compressing tunnel packets, the LNS negotiates compression parameters with the tunnel client network device. Subsequently, the LNS transmits the negotiated compression parameters to the LAC that configures a compression engine based on the received compression parameters. Hereinafter, the tunnel client network device will send compressed tunnel packets to the LAC that will decompress the received tunnel packets prior to transmitting the tunnel packets to the LNS on the tunnel connections. Similarly, the LNS will send uncompressed tunnel packets on the tunnel connection to the LAC that will compress the received tunnel packets prior to transmitting the tunnel packets to the tunnel client network device.

摘要翻译： 示出了用于在点对点连接上卸载计算服务的系统和方法。 当诸如二级隧道协议接入集中器（LAC）的隧道发起者网络设备检测到隧道客户端网络设备时，LAC与隧道端点网络设备建立隧道连接，诸如2级隧道协议网络服务器 LNS）。 在隧道连接建立呼叫会话的过程中，LAC向LNS发送压缩功能。 当LNS检测到LAC能够压缩隧道数据包时，LNS与隧道客户端网络设备协商压缩参数。 随后，LNS根据所接收的压缩参数将协商的压缩参数发送到配置压缩引擎的LAC。 在下文中，隧道客户端网络设备将向LAC发送压缩的隧道分组，该隧道分组将在隧道连接上将隧道分组传输到LNS之前对接收到的隧道分组进行解压缩。 类似地，LNS将在隧道连接上发送未压缩的隧道数据包到LAC，LAC将在将隧道数据包发送到隧道客户端网络设备之前对接收到的隧道数据包进行压缩。

公开(公告)号：US20070254661A1

公开(公告)日：2007-11-01

申请号：US11704652

申请日：2007-02-09

申请人： Kuntal Chowdhury ,  Janakiraman Senthilnathan ,  Sanil Kumar Puthiyandyil ,  Shaji Radhakrishnan ,  Mruthyunjaya Navali ,  Leonard Schwartz

发明人： Kuntal Chowdhury ,  Janakiraman Senthilnathan ,  Sanil Kumar Puthiyandyil ,  Shaji Radhakrishnan ,  Mruthyunjaya Navali ,  Leonard Schwartz

IPC分类号： H04Q7/20

CPC分类号： H04W8/14 ,  H04W36/0033 ,  H04W36/02 ,  H04W36/12 ,  H04W80/04 ,  H04W88/16 ,  H04W88/182

摘要： Systems and methods for providing fast handoff support by transferring information are provided. Additionally, a generic protocol message format is presented which allows the transfer of information used in the handoff. The generic protocol allows a gateway to request contexts or session information and send information that allows tunnel setup and mapping to other connections. The session, tunnel, and mapping information allow the gateways to switch packet processing operations without causing disruption to the packet flow. Further, in inter-gateway handoffs or inter-access network handoffs, fast and seamless handoffs are provided so the mobile station keeps the same IP address and the session continues.

摘要翻译： 提供了通过传送信息提供快速切换支持的系统和方法。 另外，提出了通用协议消息格式，其允许传送在切换中使用的信息。 通用协议允许网关请求上下文或会话信息，并发送允许隧道建立和映射到其他连接的信息。 会话，隧道和映射信息允许网关切换分组处理操作，而不会对分组流造成干扰。 此外，在网关间切换或接入间网络切换中，提供快速和无缝切换，使得移动站保持相同的IP地址并且会话继续。

公开(公告)号：US06996110B1

公开(公告)日：2006-02-07

申请号：US09943971

申请日：2001-08-31

申请人： Satish Amara ,  Shaji Radhakrishnan ,  Rajesh Ramankutty ,  Sanil Kumar Puthiyandyil ,  Boby Joseph

发明人： Satish Amara ,  Shaji Radhakrishnan ,  Rajesh Ramankutty ,  Sanil Kumar Puthiyandyil ,  Boby Joseph

IPC分类号： H04L12/66 ,  H04L12/54 ,  H04L12/28

CPC分类号： H04L12/4633 ,  H04L45/50

摘要： A system and method for processing packets of information includes an ingress module. The ingress module receives a plurality of packets of information from a first network. The ingress module determines the type of each of the plurality of packets. A route server module is coupled to the ingress module. The route server module sends a distributed processing request to the ingress module. The ingress module receives the distributed processing request and, responsively, performs a first set of processing operations on selected ones of the plurality of packets. The selected ones of the plurality of packets are of a first type. The ingress module forwards others of the plurality of packets of information to the route server module. Each of the others of the plurality of packets are of a type distinct from the first type. The route server module receives the others of the plurality of packets of information and performs a second set of processing operations on the others of the plurality of packets of information.

摘要翻译： 用于处理信息包的系统和方法包括入口模块。 入口模块从第一网络接收多个信息分组。 入口模块确定多个分组中的每一个的类型。 路由服务器模块耦合到入口模块。 路由服务器模块向入口模块发送分布式处理请求。 入口模块接收分布式处理请求，并且响应地对多个分组中的选定的分组执行第一组处理操作。 多个分组中的选定的分组是第一类型的。 入口模块将多个信息分组中的其他数据转发到路由服务器模块。 多个分组中的其他分组中的每一个都是与第一类型不同的类型。 路由服务器模块接收多个信息分组中的其他信息，并对多个信息分组中的其他分组执行第二组处理操作。

公开(公告)号：US07305489B2

公开(公告)日：2007-12-04

申请号：US10356038

申请日：2003-01-30

申请人： Sanil Kumar Puthiyandyil ,  Shaji Radhakrishnan ,  Rajesh Ramankutty ,  Krishnamoney Elayathu

发明人： Sanil Kumar Puthiyandyil ,  Shaji Radhakrishnan ,  Rajesh Ramankutty ,  Krishnamoney Elayathu

IPC分类号： G06F15/16

CPC分类号： H04L29/12207 ,  H04L29/12009 ,  H04L29/12783 ,  H04L61/20 ,  H04L61/35

摘要： A method for allocating network addresses comprises providing an address pool comprising a plurality of network addresses and then dividing the address pool into a plurality of address sub-pool that comprise a unique subset of the network addresses of the address pool. Each of the sub-pools is available for use by any one of a plurality of routing devices of a network access server. The method then comprises receiving a request to assign a first network address to a first user, allocating a first address sub-pool of the plurality of address sub-pools to a first routing device of the plurality of routing devices and transmitting a first message to the other routing devices to indicate that the first address sub-pool has been allocated. The method additionally comprises assigning the first network address to the first user from the first address sub-pool and advertising an aggregate route for the first address sub-pool over a network.

摘要翻译： 用于分配网络地址的方法包括提供包括多个网络地址的地址池，然后将地址池划分成多个地址子池，该多个地址子池包括地址池的网络地址的唯一子集。 每个子池可由网络接入服务器的多个路由设备中的任何一个使用。 该方法包括接收向第一用户分配第一网络地址的请求，将多个地址子池的第一地址子池分配给多个路由设备中的第一路由设备，并将第一消息发送到 其他路由设备指示第一个地址子池已分配。 该方法还包括从第一地址子池向第一用户分配第一网络地址，并且通过网络来发布第一地址子池的聚合路由。

公开(公告)号：US07225236B1

公开(公告)日：2007-05-29

申请号：US09923895

申请日：2001-08-07

申请人： Sanil Kumar Puthiyandyil ,  Shaji Radhakrishnan ,  Rajesh Ramankutty ,  Satish Amara

发明人： Sanil Kumar Puthiyandyil ,  Shaji Radhakrishnan ,  Rajesh Ramankutty ,  Satish Amara

IPC分类号： G06F15/16

CPC分类号： H04L12/2856 ,  H04L12/2859 ,  H04L12/2876 ,  H04L12/4633 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1023 ,  H04L67/1029

摘要： A system for load balancing, the system includes a LAC, a contact LNS, and a plurality of load balancing LNSs. The LAC includes a contact LNS address, the contact LNS address specifies the address of a contact LNS. The contact LNS is communicatively coupled to the LAC and the plurality of load balancing LNSs are communicatively coupled to the contact LNS and to the LAC. The LAC sends a message to the contact LNS, the message informing the LAC of its availability and the contact LNS sends a response message containing IP address of a selected one of the plurality of load balancing LNSs to which the LAC should establish a session.

摘要翻译： 一种用于负载平衡的系统，系统包括LAC，联系人LNS和多个负载平衡LNS。 LAC包括联系人LNS地址，联系人LNS地址指定联系人LNS的地址。 联系人LNS通信地耦合到LAC，并且多个负载平衡LNS通信地耦合到联系人LNS和LAC。 LAC向联系人LNS发送消息，该消息通知LAC其可用性，并且联系人LNS发送包含多个负责平衡LNS中所选择的一个负责平衡LNS的IP地址的响应消息，LAC应该建立会话。

公开(公告)号：US06763018B1

公开(公告)日：2004-07-13

申请号：US09728282

申请日：2000-11-30

申请人： Sanil Kumar Puthiyandyil ,  Matthew H. Harper ,  Ching Kung ,  Shaji Radhakrishnan ,  Rajesh Ramankutty

发明人： Sanil Kumar Puthiyandyil ,  Matthew H. Harper ,  Ching Kung ,  Shaji Radhakrishnan ,  Rajesh Ramankutty

IPC分类号： H04L1266

CPC分类号： H04L69/16 ,  H04L69/168 ,  H04L2212/00

摘要： A high density network access server implements a tunneling protocol between a modem module and a route server module. PPP and routing control packets received from the PPP link are tunneled to the route server for processing. The IP data packet forwarding function for the network access server is distributed directly to the modem modules. The combination of distributed PPP processing and distributed IP data packet forwarding enables the capacity of the network access server to be scaled to orders of magnitude greater than previously known, to handle thousands or even tens of thousands of simultaneous data sessions.

摘要翻译： 高密度网络接入服务器在调制解调器模块和路由服务器模块之间实现隧道协议。 从PPP链路接收的PPP和路由控制分组被隧道传送到路由服务器进行处理。 网络接入服务器的IP数据包转发功能直接分配到调制解调器模块。 分布式PPP处理和分布式IP数据包转发的组合使得网络访问服务器的容量可以被缩放到比先前知道的数量级大，以处理数千甚至数万个同时的数据会话。

公开(公告)号：US08630645B2

公开(公告)日：2014-01-14

申请号：US11704652

申请日：2007-02-09

申请人： Kuntal Chowdhury ,  Janakiraman Senthilnathan ,  Sanil Kumar Puthiyandyil ,  Shaji E. Radhakrishnan ,  Mruthyunjaya Navali ,  Leonard Schwartz

发明人： Kuntal Chowdhury ,  Janakiraman Senthilnathan ,  Sanil Kumar Puthiyandyil ,  Shaji E. Radhakrishnan ,  Mruthyunjaya Navali ,  Leonard Schwartz

IPC分类号： H04W36/00

CPC分类号： H04W8/14 ,  H04W36/0033 ,  H04W36/02 ,  H04W36/12 ,  H04W80/04 ,  H04W88/16 ,  H04W88/182

摘要： Systems and methods for providing fast handoff support by transferring information are provided. Additionally, a generic protocol message format is presented which allows the transfer of information used in the handoff. The generic protocol allows a gateway to request contexts or session information and send information that allows tunnel setup and mapping to other connections. The session, tunnel, and mapping information allow the gateways to switch packet processing operations without causing disruption to the packet flow. Further, in inter-gateway handoffs or inter-access network handoffs, fast and seamless handoffs are provided so the mobile station keeps the same IP address and the session continues.

摘要翻译： 提供了通过传送信息提供快速切换支持的系统和方法。 另外，提出了通用协议消息格式，其允许传送在切换中使用的信息。 通用协议允许网关请求上下文或会话信息，并发送允许隧道建立和映射到其他连接的信息。 会话，隧道和映射信息允许网关切换分组处理操作，而不会对分组流造成干扰。 此外，在网关间切换或接入间网络切换中，提供快速和无缝切换，使得移动站保持相同的IP地址并且会话继续。

公开(公告)号：US08565070B2

公开(公告)日：2013-10-22

申请号：US11731920

申请日：2007-04-02

申请人： Matthew H. Harper ,  Rajesh Ramankutty ,  Greg Cheever ,  Sanil Kumar Puthiyandyil

发明人： Matthew H. Harper ,  Rajesh Ramankutty ,  Greg Cheever ,  Sanil Kumar Puthiyandyil

IPC分类号： H04J3/14

CPC分类号： H04L43/00 ,  H04L41/06 ,  H04L41/0869 ,  H04L45/00

摘要： Systems and methods are provided that allow voice and data traffic to be shifted from one chassis to other chassis without interrupting service. Geographic Redundancy (GR) is an inter-chassis redundancy, where the chassis may be a home agent, a packet data serving node, or any combination of wireless networking devices. Additionally, each chassis can have one or more partitions that handle subscriber session traffic and a corresponding redundant partition on a different chassis. The redundant chassis partition can take over all or a portion of the functionality of the active chassis partition if the active chassis or any critical peer servers/gateways communicating with the active chassis should fail. This provides users with uninterrupted service in the case of some failures.

摘要翻译： 提供了允许语音和数据业务从一个机箱转移到其他机箱而不中断服务的系统和方法。 地理冗余（GR）是机架间冗余，其中机箱可以是归属代理，分组数据服务节点或无线联网设备的任何组合。 此外，每个机架可以具有一个或多个处理订户会话流量的分区和在不同机箱上的对应的冗余分区。 如果主动机箱或与主动机箱通信的任何关键对等服务器/网关都将失败，冗余机箱分区可以占用主动机箱分区的全部或部分功能。 这在一些故障的情况下为用户提供不间断的服务。

公开(公告)号：US20080112374A1

公开(公告)日：2008-05-15

申请号：US11599959

申请日：2006-11-15

申请人： Rajesh Ramankutty ,  Noel Charath ,  Sanil Kumar Puthiyandyil

发明人： Rajesh Ramankutty ,  Noel Charath ,  Sanil Kumar Puthiyandyil

IPC分类号： H04Q7/00

CPC分类号： H04W28/08 ,  H04L61/1511 ,  H04L61/6013 ,  H04L67/2814 ,  H04W8/12 ,  H04W80/04 ,  H04W88/182

摘要： Systems and methods for intercepting and redirecting requests are provided. More particularly, certain information is identified in a packet and the packet is redirected to a specified server. The information that is redirected may be bound for a server in a network that a mobile node is currently visiting, and it is advantageous to fulfill the request in another network instead. The request is redirected to the other network; however, the response to the request may be modified changing the source address and other information so that the response appears to have originated from the server in the visited network to which the mobile node sent the request. Load balancing may also be incorporated when redirecting requests from one or more mobile nodes.

摘要翻译： 提供了拦截和重定向请求的系统和方法。 更具体地，在分组中识别某些信息，并且分组被重定向到指定的服务器。 被重定向的信息可以绑定到移动节点正在访问的网络中的服务器，并且有利的是在另一个网络中完成该请求。 请求被重定向到另一个网络; 然而，可以修改对请求的响应，改变源地址和其他信息，使得响应看起来源自移动节点发送请求的访问网络中的服务器。 当重定向来自一个或多个移动节点的请求时，还可以并入负载平衡。

公开(公告)号：US08700771B1

公开(公告)日：2014-04-15

申请号：US11475624

申请日：2006-06-26

申请人： Rajesh Ramankutty ,  Sanil Kumar Puthiyandyil ,  Matthew H. Harper

发明人： Rajesh Ramankutty ,  Sanil Kumar Puthiyandyil ,  Matthew H. Harper

IPC分类号： G06F15/173 ,  H04L12/28

CPC分类号： H04L63/101 ,  H04W12/08 ,  H04W88/16

摘要： Systems and methods for caching information related to access rights are provided. The access rights may be rules stored in an access control list. The cache may include packet parameters against which packets in a data flow are matched to determine if a match is possible from the cache. If a match is possible, a corresponding rule is applied to the packet. If a match is not found in the cache, the access control list may be searched for a corresponding rule. The rule from the access control list may be populated into the cache when a match is found in the access control list.

摘要翻译： 提供了用于缓存与访问权限相关的信息的系统和方法。 访问权限可以是存储在访问控制列表中的规则。 高速缓存可以包括与数据流中的分组匹配的分组参数，以确定是否可以从缓存进行匹配。 如果可以进行匹配，则将相应的规则应用于数据包。 如果在缓存中没有找到匹配，则可以搜索访问控制列表以获得相应的规则。 当在访问控制列表中找到匹配时，来自访问控制列表的规则可以被填充到高速缓存中。