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公开(公告)号：US20050286455A1
公开(公告)日：2005-12-29
申请号：US10875897
申请日：2004-06-24
摘要： The present invention provides a method and apparatus for multicast tunneling for mobile devices. The method comprises receiving a multicast packet directed to a plurality of mobile nodes, the mobile nodes being associated with a home subnet and identifying if any of the plurality of the mobile nodes are coupled to a subnet other than the home subnet, wherein each of the identified mobile nodes has an associated transmission path through which that mobile node can be reached. The method further provides that in response to determining that at least some of the mobile nodes are coupled to the subnet other than the home subnet, determining which of the identified mobile nodes has a common next hop in their associated transmission path and generating a packet including at least a portion of the multicast packet and including in the packet a list of mobile nodes that have the common next hop. The method further provides for transmitting the generated packet to the common next hop.
摘要翻译： 本发明提供一种用于移动设备的组播隧道的方法和装置。 所述方法包括：接收指向多个移动节点的多播分组，所述移动节点与归属子网相关联，并且识别所述多个所述移动节点中的任一个是否耦合到除所述归属子网之外的子网，其中， 识别的移动节点具有相关联的传输路径，通过该路径可以到达该移动节点。 该方法进一步规定，响应于确定至少一些移动节点被耦合到除了归属子网之外的子网，确定所识别的移动节点中哪一个在其相关联的传输路径中具有共同的下一跳，并且生成包括 所述多播分组的至少一部分并且在分组中包括具有公共下一跳的移动节点的列表。 该方法进一步提供将生成的分组发送到公共下一跳。
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2.发明授权Method, system and article for improved TCP performance during packet reordering 失效方法，系统和文章，用于在数据包重排序期间改进TCP性能公开(公告)号：US07742419B2
公开(公告)日：2010-06-22
申请号：US12101765
申请日：2008-04-11
IPC分类号： H04L1/00
CPC分类号： H04L29/06 , H04L69/16 , H04L69/161 , H04L69/163
摘要： TCP congestion avoidance is implemented upon retransmission of a packet and is reverted back to the original congestion state upon receipt of an early acknowledgement (ACK), indicating reordering of packets, thereby eliminating a needless restriction on TCP bandwidth. Upon receiving an ACK to a retransmitted packet, it is determined if the ACK resulted from receipt of the original reordered packet or the retransmitted packet, based on the arrival time of the ACK at the sender. If the round-trip-time (RTT) for the retransmitted packet is much lower than the average or current calculated RTT for the network link between sender and receiver, then the retransmission occurred as a result of a reordering event, and the congestion window is restored back to its value prior to the retransmission, thereby permitting the network link to continue operating at its original increased throughput.
摘要翻译： TCP拥塞避免在分组重传时实现，并且在接收到指示重新排序分组的早期确认（ACK）时被恢复到原始拥塞状态，从而消除对TCP带宽的不必要的限制。 在向重传的分组接收到ACK时，基于ACK在发送方的到达时间确定ACK是否从接收到原始重新排序的分组或重传分组而产生。 如果重发分组的往返时间（RTT）远低于发送方和接收方之间的网络链路的平均或当前计算的RTT，则重新发送作为重排序事件的结果，拥塞窗口为 在重传之前恢复其值，从而允许网络链路以其原始增加的吞吐量继续运行。
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3.发明授权Method, system and article for rapid detection and avoidance of high data corrupting routes within a network 有权用于快速检测和避免网络内高数据损坏路由的方法，系统和文章公开(公告)号：US07394769B2
公开(公告)日：2008-07-01
申请号：US10640819
申请日：2003-08-14
IPC分类号： H04J1/16
CPC分类号： H04L1/0061 , H04L1/0072 , H04L1/08 , H04L1/16 , H04L1/1809 , H04L45/00 , H04L45/22 , H04L45/28 , H04L69/16 , H04L69/161 , H04L69/163 , H04L69/22 , H04L69/40
摘要： A receiving host in a TCP/IP network sends an acknowledgment indicating a received data packet is corrupt. The sending host will begin transmitting with a new field set in the IP header called a check-TCP-checksum bit, thereby requesting that all routers in the TCP/IP network perform a checksum on the entire received packet. Routers in the TCP/IP network will perform a complete checksum on an entire packet with the check-TCP-checksum bit set, and not just on the IP header. The routers continuously monitor the ratio of corrupt packets received on a particular port that fail the entire packet checksum to the total number of packets received on that port. If the ratio of corrupt-to-received packets exceeds a corruption threshold, the router assumes that the associated link is causing data corruption and issues a routing update indicating that the link is bad and should be avoided. Once the retransmission rate between the sender and receiver drops below a threshold level, the bad link has been detected and avoided within the TCP/IP network and the check-TCP-checksum option in the IP header is no longer set in data packets transmitted to the receiver host.
摘要翻译： TCP / IP网络中的接收主机发送指示接收到的数据包已损坏的确认。 发送主机将开始使用称为检查TCP校验和位的IP报头中设置的新字段进行发送，从而请求TCP / IP网络中的所有路由器对整个接收到的数据包执行校验和。 TCP / IP网络中的路由器将对整个数据包执行完整的校验和，同时检查TCP-checksum位，而不仅仅是在IP报头上。 路由器连续监视在特定端口上接收的损坏数据包的总数与在该端口上接收的数据包的总数之间的比例。 如果损坏的数据包的比例超过了破坏阈值，则路由器假设相关联的链路导致数据损坏，并发出路由更新，指示链路不良，应该避免。 一旦发送方和接收方之间的重传速率下降到阈值以下，就会在TCP / IP网络内检测并避免不良链路，并且IP报头中的check-TCP-checksum选项不再被设置在发送到 接收主机。
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4.发明申请APPARATUS AND METHOD OF SPLITTING A DATA STREAM OVER MULTIPLE TRANSPORT CONTROL PROTOCOL/INTERNET PROTOCOL (TCP/IP) CONNECTIONS 失效多种传输控制协议/互联网协议（TCP / IP）连接分析数据流的设备和方法公开(公告)号：US20070291759A1
公开(公告)日：2007-12-20
申请号：US11778036
申请日：2007-07-14
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L29/06 , H04L45/24 , H04L47/10 , H04L47/34 , H04L69/14 , H04L69/16 , H04L69/161 , H04L69/166
摘要： A method, system and apparatus for improving data transfer rate over a network are provided. When a piece of data is to be transmitted to a target system, it is divided into a number of packets and a determination is made as to whether the number of packets exceeds a threshold number. If so, the packets are transferred in parallel over a plurality of network connections. The ideal network connections are TCP/IP connections. Thus, each packet has an IP header, which contains an IP identification field. An indicium is placed into the IP identification field for proper reconstruction of the data by the target system.
摘要翻译： 提供了一种用于提高网络上的数据传输速率的方法，系统和装置。 当一条数据要发送到目标系统时，将其分成多个分组，并确定分组数是否超过阈值数。 如果是这样，则分组在多个网络连接上并行传送。 理想的网络连接是TCP / IP连接。 因此，每个分组具有包含IP标识字段的IP报头。 将标记放入IP识别字段，以便目标系统正确重建数据。
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5.发明申请Method and apparatus for address resolution protocol persistent in a network data processing system 审中-公开用于地址解析协议的方法和装置在网络数据处理系统中持久存在公开(公告)号：US20060268851A1
公开(公告)日：2006-11-30
申请号：US11126121
申请日：2005-05-10
IPC分类号： H04L12/56
CPC分类号： H04L29/12009 , H04L29/12018 , H04L61/10
摘要： A method, apparatus, and computer instructions for transferring data in a network data processing system. Data is transferred to a destination in which an address resolution protocol entry is used to transfer this data to the destination. A determination is made as to whether the address resolution protocol entry will expire within a selected threshold while transferring data to the destination. If the address resolution protocol will expire within the selected threshold, the address resolution protocol entry is kept or retained to reduce the interruptions or delays in the transferring of the data.
摘要翻译： 一种用于在网络数据处理系统中传送数据的方法，装置和计算机指令。 数据被传送到目的地，其中使用地址解析协议条目将该数据传送到目的地。 在将数据传送到目的地时，确定地址解析协议条目是否将在选定的阈值内到期。 如果地址解析协议在选定的阈值内到期，则保留或保留地址解析协议条目，以减少数据传输中的中断或延迟。
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6.发明申请Method for allowing multiple authorized applications to share the same port 审中-公开允许多个授权应用程序共享相同端口的方法公开(公告)号：US20070136465A1
公开(公告)日：2007-06-14
申请号：US11301111
申请日：2005-12-12
申请人： Lilian Fernandes , Vinit Jain , Vasu Vallabhaneni
发明人： Lilian Fernandes , Vinit Jain , Vasu Vallabhaneni
IPC分类号： G06F15/173
CPC分类号： H04L63/104
摘要： In a method comprising an embodiment of the invention, an original application initially binds to a port, and selects or designates a confidential key, which usefully may be a conventional cookie. The invention also sets a socket option, referred to by way of example, as SO_SECURE_REUSEPORT. The confidential key, together with the port number, is then registered with the operating system of a host associated with the port. In order for another application to subsequently bind to the port, such application must provide the operating system with a key that is identical to the confidential key. In one useful embodiment of the invention, a first application binds a socket to a particular port associated with the host. A specified key is registered with the operating system, and a second application is allowed to bind to the particular port only if the second application can furnish the operating system with a key that matches the specified key.
摘要翻译： 在包括本发明的实施例的方法中，原始应用程序最初绑定到端口，并且选择或指定可有可能是传统cookie的机密密钥。 本发明还将作为示例引用的套接字选项设置为SO_SECURE_REUSEPORT。 然后将密钥与端口号一起注册到与端口相关联的主机的操作系统。 为了使另一个应用程序随后绑定到端口，这样的应用程序必须向操作系统提供与机密密钥相同的密钥。 在本发明的一个有用的实施例中，第一应用将套接字绑定到与主机相关联的特定端口。 指定的密钥被注册到操作系统，并且仅当第二应用可以向操作系统提供与指定密钥匹配的密钥时，允许第二应用绑定到特定端口。
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7.发明申请公开(公告)号：US20060155563A1
公开(公告)日：2006-07-13
申请号：US11034274
申请日：2005-01-12
申请人： Dwip Banerjee , Lilian Fernandes , Vasu Vallabhaneni , Vinit Jain
发明人： Dwip Banerjee , Lilian Fernandes , Vasu Vallabhaneni , Vinit Jain
IPC分类号： G06Q99/00
CPC分类号： H04L29/12301 , H04L61/2015 , H04L61/2076
摘要： DHCP lease negotiation is performed in advance of a specified time when the IP address is needed. The client sends a DHCP discover message with an advance lease option indicating a future time when an IP address is needed. The DHCP server reserves an IP address available at the requested time for the requesting client and sends a DHCP acknowledgment of the reservation. Thereafter, the client sends a DHCP discover message requesting the reserved IP address, and the DHCP server assigns it to the client at the scheduled time.
摘要翻译： 在需要IP地址的指定时间之前执行DHCP租约协商。 客户端发送具有预先租赁选项的DHCP发现消息，指示需要IP地址的未来时间。 DHCP服务器在请求的客户端请求的时间保留可用的IP地址，并发送预留的DHCP确认。 此后，客户端发送请求保留的IP地址的DHCP发现消息，DHCP服务器在预定的时间将其分配给客户端。
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8.发明申请METHOD, SYSTEM AND ARTICLE FOR IMPROVED TCP PERFORMANCE DURING PACKET REORDERING 失效方法，系统和文章提高分组后的TCP性能公开(公告)号：US20080186863A1
公开(公告)日：2008-08-07
申请号：US12101765
申请日：2008-04-11
IPC分类号： G08C15/00
CPC分类号： H04L29/06 , H04L69/16 , H04L69/161 , H04L69/163
摘要： TCP congestion avoidance is implemented upon retransmission of a packet and is reverted back to the original congestion state upon receipt of an early acknowledgement (ACK), indicating reordering of packets, thereby eliminating a needless restriction on TCP bandwidth. Upon receiving an ACK to a retransmitted packet, it is determined if the ACK resulted from receipt of the original reordered packet or the retransmitted packet, based on the arrival time of the ACK at the sender. If the round-trip-time (RTT) for the retransmitted packet is much lower than the average or current calculated RTT for the network link between sender and receiver, then the retransmission occurred as a result of a reordering event, and the congestion window is restored back to its value prior to the retransmission, thereby permitting the network link to continue operating at its original increased throughput.
摘要翻译： TCP拥塞避免在分组重传时实现，并且在接收到指示重新排序分组的早期确认（ACK）时被恢复到原始拥塞状态，从而消除对TCP带宽的不必要的限制。 在向重传的分组接收到ACK时，基于ACK在发送方的到达时间确定ACK是否从接收到原始重新排序的分组或重传分组而产生。 如果重发分组的往返时间（RTT）远低于发送方和接收方之间的网络链路的平均或当前计算的RTT，则重新发送作为重排序事件的结果，拥塞窗口为 在重传之前恢复其值，从而允许网络链路以其原始增加的吞吐量继续运行。
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公开(公告)号：US20060168267A1
公开(公告)日：2006-07-27
申请号：US10992380
申请日：2004-11-18
申请人： Lilian Fernandes , Vinit Jain , Vasu Vallabhaneni , Patrick Vo
发明人： Lilian Fernandes , Vinit Jain , Vasu Vallabhaneni , Patrick Vo
IPC分类号： G06F15/16
CPC分类号： H04L12/4633 , H04L29/12066 , H04L61/1511 , H04L69/16 , H04L69/161 , H04L69/167
摘要： Methods, systems, and products are provided for tunneling IPv6 packets. Embodiments include receiving, by an origin IPv6 border router from an origin IPv6 host, an IPv6 packet having an IPv6 destination address; receiving, by an origin IPv6 border router from an origin IPv6 host, an IPv4 address for a destination IPv6 border router retrieved from a data structure associating IPv6 destination addresses with IPv4 addresses for destination IPv6 border routers; encapsulating, by the origin IPv6 border router, the IPv6 packet in an IPv4 packet; and sending the encapsulated packet to a destination IPv6 border router at the IPv4 address. In many embodiments, encapsulating, by the origin IPv6 border router, the IPv6 packet in an IPv4 packet is carried out by adding an IPv4 header to the IPv6 packet.
摘要翻译： 提供了IPv6隧道分组的方法，系统和产品。 实施例包括由原始IPv6主机从原始IPv6边界路由器接收具有IPv6目的地址的IPv6分组; 通过原始IPv6边界路由器从原始IPv6主机接收从将IPv6目的地址与目的IPv6边界路由器的IPv4地址相关联的数据结构检索的目的地IPv6边界路由器的IPv4地址; 由原始IPv6边界路由器封装IPv6分组中的IPv6分组; 并将封装的分组发送到IPv4地址的目的IPv6边界路由器。 在许多实施例中，由IPv6 IPv6边界路由器封装IPv4分组中的IPv6分组，通过向IPv6分组添加IPv4报头来实现。
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公开(公告)号：US20060072713A1
公开(公告)日：2006-04-06
申请号：US10955178
申请日：2004-09-30
申请人： Lilian Fernandes , Vinit Jain , Vasu Vallabhaneni
发明人： Lilian Fernandes , Vinit Jain , Vasu Vallabhaneni
IPC分类号： H04M1/64
CPC分类号： H04M3/42382 , H04M1/2478 , H04M2203/654
摘要： A method and apparatus is provided for enabling a telephone caller to generate a brief message for transmission to an intended call recipient, as part of the initial procedure of setting up a phone call between the caller and recipient. The message is sent and displayed or otherwise made available to the recipient before the recipient is required to answer the call. The message could comprise a sequence of alphanumeric characters that conveyed an abbreviated message, or otherwise indicates the purpose to the call to the recipient or provides other information. Respective characters could be transmitted as corresponding sequences of binary tones sent to the call recipient between telephone rings.
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