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1. 发明授权

US07688819B2 Faster routing protocol convergence using efficient message markup 有权
标题翻译：使用有效的消息标记更快地路由协议收敛
公开(公告)号：US07688819B2
公开(公告)日：2010-03-30
申请号：US11369262
申请日：2006-03-06
申请人： Anantha Ramaiah , Keyur Patel , David D. Ward , Robert Raszuk
发明人： Anantha Ramaiah , Keyur Patel , David D. Ward , Robert Raszuk
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/04 , H04L45/02
摘要： Devices executing routing protocols can mark routing protocol messages as urgent so that peer devices are signaled to consume the messages on an expedited basis. Performance of routing protocols improves as a result; for example, Border Gateway Protocol convergence time is reduced. An example router comprises a network interface, a processor, a transport layer protocol module that implements a transport layer network protocol, a routing protocol module that implements a network packet routing protocol and sends peering session messages over transport layer connections, and instructions to perform providing a first routing protocol message to the transport layer protocol module that comprises urgent data at least in part; requesting the transport layer protocol module to mark, as urgent, one or more data segments that carry the first routing protocol message; marking, as urgent, one or more segments that carry the first routing protocol message; and sending the segments to peer devices over the connections.
摘要翻译：执行路由协议的设备可以将路由协议消息标记为紧急，以便对等设备进行信号通知以快速消费消息。因此，路由协议的性能得到改善; 例如，边界网关协议收敛时间减少。示例路由器包括网络接口，处理器，实现传输层网络协议的传输层协议模块，实现网络分组路由协议并通过传输层连接发送对等会话消息的路由协议模块，以及执行提供的指令至少部分地包括紧急数据的传输层协议模块的第一路由协议消息; 请求传输层协议模块紧急地标记携带第一路由协议消息的一个或多个数据段; 标记为紧急的携带第一路由协议消息的一个或多个段; 并通过连接将段发送到对等设备。

2. 发明申请

US20070206587A1 Faster routing protocol convergence using efficient message markup 有权
标题翻译：使用有效的消息标记更快地路由协议收敛
公开(公告)号：US20070206587A1
公开(公告)日：2007-09-06
申请号：US11369262
申请日：2006-03-06
申请人： Anantha Ramaiah , Keyur Patel , David Ward , Robert Raszuk
发明人： Anantha Ramaiah , Keyur Patel , David Ward , Robert Raszuk
IPC分类号： H04L12/56
CPC分类号： H04L45/04 , H04L45/02
摘要： Devices executing routing protocols can mark routing protocol messages as urgent so that peer devices are signaled to consume the messages on an expedited basis. Performance of routing protocols improves as a result; for example, Border Gateway Protocol convergence time is reduced. An example router comprises a network interface, a processor, a transport layer protocol module that implements a transport layer network protocol, a routing protocol module that implements a network packet routing protocol and sends peering session messages over transport layer connections, and instructions to perform providing a first routing protocol message to the transport layer protocol module that comprises urgent data at least in part; requesting the transport layer protocol module to mark, as urgent, one or more data segments that carry the first routing protocol message; marking, as urgent, one or more segments that carry the first routing protocol message; and sending the segments to peer devices over the connections.
摘要翻译：执行路由协议的设备可以将路由协议消息标记为紧急，以便对等设备进行信号通知以快速消费消息。因此，路由协议的性能得到改善; 例如，边界网关协议收敛时间减少。示例路由器包括网络接口，处理器，实现传输层网络协议的传输层协议模块，实现网络分组路由协议并通过传输层连接发送对等会话消息的路由协议模块，以及执行提供的指令至少部分地包括紧急数据的传输层协议模块的第一路由协议消息; 请求传输层协议模块紧急地标记携带第一路由协议消息的一个或多个数据段; 标记为紧急的携带第一路由协议消息的一个或多个段; 并通过连接将段发送到对等设备。

3. 发明授权

US08639822B2 Extending application-layer sessions based on out-of-order messages 有权
标题翻译：根据乱序消息扩展应用层会话
公开(公告)号：US08639822B2
公开(公告)日：2014-01-28
申请号：US12986929
申请日：2011-01-07
申请人： Anantha Ramaiah , Keyur Patel , Shrirang Bage
发明人： Anantha Ramaiah , Keyur Patel , Shrirang Bage
IPC分类号： H04L29/06
CPC分类号： H04L49/355
摘要： A method and non-transitory computer-readable medium are disclosed for extending a hold timer that binds an application-layer session when a transport-layer out-of-order message queue includes an out-of-order message for the application-layer session. An application receives an application-layer message from transport protocol logic that is configured to deliver in-order application-layer messages to the application. The received application-layer message is a next in-order application-layer message for an application-layer session that is bound by a hold timer. After an amount time has passed, the application detects an expiration of the hold timer. In response, rather than immediately tearing down the application-layer session, the application inspects an out-of-order queue of the transport protocol logic. The hold timer is extended when the out-of-order queue includes an out-of-order application-layer message for the application-layer session. In one aspect, the transport protocol logic includes an application programming interface that provides the application with access to the out-of-order queue.
摘要翻译：公开了一种方法和非暂时性计算机可读介质，用于在传输层无序消息队列包括用于应用层会话的无序消息时扩展绑定应用层会话的保持定时器。应用程序从传输协议逻辑接收应用层消息，该消息被配置为向应用程序发送按顺序的应用层消息。接收到的应用层消息是由保持定时器绑定的应用层会话的下一个按顺序应用层消息。经过一段时间后，应用程序会检测到保持定时器的到期。作为响应，应用程序不是立即拆除应用程序层会话，而是检查传输协议逻辑的乱序队列。当无序队列包含用于应用层会话的无序应用层消息时，保持定时器被扩展。在一个方面，传输协议逻辑包括向应用程序提供对无序队列的访问的应用编程接口。

4. 发明授权

US09300642B2 Restarting network reachability protocol sessions based on transport layer authentication 有权
标题翻译：基于传输层认证重新启动网络可达性协议会话
公开(公告)号：US09300642B2
公开(公告)日：2016-03-29
申请号：US12942588
申请日：2010-11-09
申请人： Brian Weis , Mahesh Jethanandani , Keyur Patel , Anantha Ramaiah
发明人： Brian Weis , Mahesh Jethanandani , Keyur Patel , Anantha Ramaiah
IPC分类号： G06F15/16 , H04L29/06 , H04L12/755 , H04L12/721 , H04L12/26 , H04L12/751 , H04L12/703 , H04L12/715
CPC分类号： H04L63/06 , H04L43/12 , H04L45/02 , H04L45/021 , H04L45/04 , H04L45/12 , H04L45/28 , H04L45/70 , H04L63/08
摘要： In an embodiment, a method comprises establishing a first data communications session with a first router. In response to receiving a first request to establish a second data communications session, a probe message that is configured to test whether the first data communications session or the first router is responsive is sent to the first router. In response to determining that the first router has not acknowledged the probe message before a probe timer has expired, and receiving a second request to establish the second data communications session, the second data communications session with the first router is established and a state for the first data communications session is deleted.
摘要翻译：在一个实施例中，一种方法包括与第一路由器建立第一数据通信会话。响应于接收到建立第二数据通信会话的第一请求，被配置为测试第一数据通信会话或第一路由器是否响应的探测消息被发送到第一路由器。响应于在探测定时器期满之前确定第一路由器尚未确认探测消息，并且接收建立第二数据通信会话的第二请求，建立与第一路由器的第二数据通信会话，并且为第一个数据通信会话被删除。

5. 发明申请

US20120117248A1 Restarting Network Reachability Protocol Sessions Based on Transport Layer Authentication 有权
标题翻译：基于传输层验证重新启动网络可达性协议会话
公开(公告)号：US20120117248A1
公开(公告)日：2012-05-10
申请号：US12942588
申请日：2010-11-09
申请人： Brian Weis , Mahesh Jethanandani , Keyur Patel , Anantha Ramaiah
发明人： Brian Weis , Mahesh Jethanandani , Keyur Patel , Anantha Ramaiah
IPC分类号： G06F15/16
CPC分类号： H04L63/06 , H04L43/12 , H04L45/02 , H04L45/021 , H04L45/04 , H04L45/12 , H04L45/28 , H04L45/70 , H04L63/08
摘要： In an embodiment, a method comprises establishing a first data communications session with a first router. In response to receiving a first request to establish a second data communications session, a probe message that is configured to test whether the first data communications session or the first router is responsive is sent to the first router. In response to determining that the first router has not acknowledged the probe message before a probe timer has expired, and receiving a second request to establish the second data communications session, the second data communications session with the first router is established and a state for the first data communications session is deleted.
摘要翻译：在一个实施例中，一种方法包括与第一路由器建立第一数据通信会话。响应于接收到建立第二数据通信会话的第一请求，被配置为测试第一数据通信会话或第一路由器是否响应的探测消息被发送到第一路由器。响应于在探测定时器期满之前确定第一路由器尚未确认探测消息，并且接收建立第二数据通信会话的第二请求，建立与第一路由器的第二数据通信会话，并且为第一个数据通信会话被删除。

6. 发明授权

US07545810B2 Approaches for switching transport protocol connection keys 有权
标题翻译：切换传输协议连接密钥的方法
公开(公告)号：US07545810B2
公开(公告)日：2009-06-09
申请号：US11173690
申请日：2005-07-01
申请人： Satish K. Mynam , Anantha Ramaiah , Chandrashekhar Appanna , Keyur Patel
发明人： Satish K. Mynam , Anantha Ramaiah , Chandrashekhar Appanna , Keyur Patel
IPC分类号： H04L12/56 , H04L9/14
CPC分类号： H04L63/123 , H04L9/0891 , H04L9/3239 , H04L9/3247 , H04L2209/38 , H04L2209/80
摘要： Approaches are disclosed for switching transport protocol connection keys. In a transport protocol module configured to use a first key for signing messages associated with a transport protocol connection, a second key is configured for the transport protocol connection. A first message that is associated with the transport protocol connection is received. The first message includes a first signature. A first and a second message digests are computed for the first message, where the first message digest is based on the first key and the second message digest is based on the second key. The first message is validated if the first signature in the first message matches any one of the first message digest and the second message digest.
摘要翻译：公开了用于切换传输协议连接密钥的方法。在被配置为使用第一密钥来签署与传输协议连接相关联的消息的传输协议模块中，为传输协议连接配置第二密钥。接收与传输协议连接相关联的第一消息。第一个消息包括第一个签名。针对第一消息计算第一和第二消息摘要，其中第一消息摘要基于第一密钥，第二消息摘要基于第二密钥。如果第一消息中的第一个签名与第一个消息摘要和第二个消息摘要中的任何一个匹配，则验证第一个消息。

7. 发明申请

US20070005973A1 Approaches for switching transport protocol connection keys 有权
标题翻译：切换传输协议连接密钥的方法
公开(公告)号：US20070005973A1
公开(公告)日：2007-01-04
申请号：US11173690
申请日：2005-07-01
申请人： Satish Mynam , Anantha Ramaiah , Chandrashekhar Appanna , Keyur Patel
发明人： Satish Mynam , Anantha Ramaiah , Chandrashekhar Appanna , Keyur Patel
IPC分类号： H04L9/00
CPC分类号： H04L63/123 , H04L9/0891 , H04L9/3239 , H04L9/3247 , H04L2209/38 , H04L2209/80
摘要： Approaches are disclosed for switching transport protocol connection keys. In a transport protocol module configured to use a first key for signing messages associated with a transport protocol connection, a second key is configured for the transport protocol connection. A first message that is associated with the transport protocol connection is received. The first message includes a first signature. A first and a second message digests are computed for the first message, where the first message digest is based on the first key and the second message digest is based on the second key. The first message is validated if the first signature in the first message matches any one of the first message digest and the second message digest.
摘要翻译：公开了用于切换传输协议连接密钥的方法。在被配置为使用第一密钥来签署与传输协议连接相关联的消息的传输协议模块中，为传输协议连接配置第二密钥。接收与传输协议连接相关联的第一消息。第一个消息包括第一个签名。针对第一消息计算第一和第二消息摘要，其中第一消息摘要基于第一密钥，第二消息摘要基于第二密钥。如果第一消息中的第一个签名与第一个消息摘要和第二个消息摘要中的任何一个匹配，则验证第一个消息。

8. 发明授权

US07808998B2 Disconnected transport protocol connectivity 有权
标题翻译：断开传输协议连接
公开(公告)号：US07808998B2
公开(公告)日：2010-10-05
申请号：US12024031
申请日：2008-01-31
申请人： Randall Stewart , Gopal Dommety , Anantha Ramaiah
发明人： Randall Stewart , Gopal Dommety , Anantha Ramaiah
IPC分类号： H04L12/28 , H04J3/06
CPC分类号： H04L69/16 , H04W80/06
摘要： In an embodiment, an existing transport protocol connection though a mobile device is recognized as having entered a state of disconnect. A lowest received sequence number is determined from received messages to be transmitted over a disconnected transport protocol connection. A disconnect acknowledgement message with a receive window of zero and a sequence number of one less than the lowest received sequence number is transmitted. The disconnect acknowledge message with a receive window of zero and a sequence number of one less than the lowest received sequence number is continued to be transmitted until the transport protocol connection exits the disconnect state to a connect state.
摘要翻译：在一个实施例中，通过移动设备的现有传输协议连接被识别为已经进入断开状态。从接收到的消息中确定最低的接收序列号，以通过断开的传输协议连接发送。发送具有接收窗口为零且序列号小于最低接收序列号的序列号的断开确认消息。继续发送接收窗口为零且序列号小于最低接收序列号的断开确认消息，直到传输协议连接退出断开状态为连接状态。

9. 发明授权

US07613118B2 Detecting change in a transport protocol window size without data transmission 有权
标题翻译：检测传输协议窗口大小的变化，无需数据传输
公开(公告)号：US07613118B2
公开(公告)日：2009-11-03
申请号：US11133622
申请日：2005-05-19
申请人： Chandrashekhar Appanna , Anantha Ramaiah , Amol Khare
发明人： Chandrashekhar Appanna , Anantha Ramaiah , Amol Khare
IPC分类号： G01R31/08 , G06F12/00
CPC分类号： H04L69/16 , H04L69/163 , Y10S707/99953 , Y10S707/99955
摘要： A method detects a change in TCP receive window size while preventing fragmentation of data. A TCP stack receives a segment that advertises a receive window size of zero. If data needs to be sent, and only if so, a timer is started. When the timer expires, a TCP segment that contains a first sequence number value equal to second sequence number representing sent but unacknowledged data minus one, and a segment length value of zero, is sent. Without sending a fragment of data, this triggers a peer TCP process to send an updated window size. A TCP ACK segment is received and contains an updated receive window size. If the updated receive window size is greater than a specified value, then the data is sent. Otherwise, a counter is incremented, and the steps are re-performed if the counter is less than a specified value.
摘要翻译：一种方法检测TCP接收窗口大小的变化，同时防止数据碎片化。 TCP堆栈接收一个通告接收窗口大小为零的段。如果需要发送数据，并且只有这样，才能启动定时器。当定时器到期时，发送包含表示发送但未确认的数据减去1的第二序列号的第一序列号值和段长度值为零的TCP段。不发送数据片段，这将触发对等TCP进程发送更新的窗口大小。 TCP ACK段被接收并且包含更新的接收窗口大小。如果更新的接收窗口大小大于指定值，则发送数据。否则，计数器递增，如果计数器小于指定值，则重新执行步骤。

10. 发明授权

US07565694B2 Method and apparatus for preventing network reset attacks 有权
标题翻译：防止网络重置攻击的方法和装置
公开(公告)号：US07565694B2
公开(公告)日：2009-07-21
申请号：US10959225
申请日：2004-10-05
申请人： Chandrashekhar Appanna , Anantha Ramaiah
发明人： Chandrashekhar Appanna , Anantha Ramaiah
IPC分类号： G06F11/00 , G06F12/16 , G06F15/18 , G08B23/00
CPC分类号： H04L63/1458 , H04L69/16 , H04L69/163
摘要： A method for improving resistance of network protocols running on transmission control protocol (TCP), such as BGP. For example, a method comprises receiving, from a TCP application, a request to ignore all TCP segments with an RST bit set, except for solicited RST segments; establishing a filter that blocks all but solicited TCP RST segments; receiving a TCP segment with a SYN bit set and a sequence number value within an allowed window for a TCP connection matching the received segment, and for a session of the TCP application; re-configuring the filter to allow TCP RST segments for the connection associated with the received segment; requesting the TCP application to initiate an event that will induce a legitimate sender of the received segment to send a valid TCP RST segment in response; and closing the connection only when a TCP RST segment is received in response.
摘要翻译：一种提高在传输控制协议（TCP）（如BGP）上运行的网络协议的阻力的方法。例如，一种方法包括从TCP应用程序接收除了被请求的RST段之外忽略具有RST位的所有TCP段的请求; 建立一个阻塞所有但被请求的TCP RST段的过滤器; 接收具有SYN位集合的TCP段和在允许的窗口内的序列号值，用于匹配所接收的段的TCP连接以及TCP应用的会话; 重新配置过滤器以允许TCP RST段用于与接收段相关联的连接; 请求TCP应用程序发起一个将导致接收段的合法发送方发送有效的TCP RST段作为响应的事件; 并且只有当接收到TCP RST段作为响应时才关闭连接。

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