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41. 发明授权

US07072337B1 System and method for resolving network addresses for network devices on distributed network subnets 有权
标题翻译：用于解决分布式网络子网上网络设备的网络地址的系统和方法
公开(公告)号：US07072337B1
公开(公告)日：2006-07-04
申请号：US10056886
申请日：2002-01-25
申请人： Yuri Arutyunov , John G. Fijolek , Ronald Lee , William Necka
发明人： Yuri Arutyunov , John G. Fijolek , Ronald Lee , William Necka
IPC分类号： H04L12/28 , H04L12/56 , G06F15/16
CPC分类号： H04L29/12009 , H04L12/2801 , H04L12/2856 , H04L12/2872 , H04L29/12028 , H04L29/12226 , H04L61/103 , H04L61/2015
摘要： A system and methods for traffic gating in a computer network comprising a plurality of subnets are developed. One of the methods implemented in a data-over-cable system includes, responsive to receiving a first address resolution request message on a cable modem from a first host to a second host, generating a second address resolution request message on the cable modem and sending it to the second host. If the second host does not respond with an address resolution protocol reply message to the second request message, the cable modem determines a network subnet associated with the first host. Based on the network subnet, the cable modem determines a network address of a network element arranged to provide routing services to hosts on the subnet associated with the first host. Next, the cable modem generates an address resolution reply message including the network address of the network element and sends it to the first host.
摘要翻译：开发了包括多个子网的计算机网络中的流量选通的系统和方法。在电缆数据系统中实现的方法之一包括响应于在电缆调制解调器上从第一主机接收到第二主机的第一地址解析请求消息，在电缆调制解调器上生成第二地址解析请求消息并发送它到第二个主机。如果第二主机不响应于第二请求消息的地址解析协议回复消息，则电缆调制解调器确定与第一主机相关联的网络子网。基于网络子网，电缆调制解调器确定被布置为向与第一主机相关联的子网上的主机提供路由服务的网元的网络地址。接下来，电缆调制解调器生成包括网络元件的网络地址的地址解析应答消息并将其发送到第一主机。

42. 发明授权

US07065670B2 Server monitoring and failover mechanism 有权
标题翻译：服务器监控和故障转移机制
公开(公告)号：US07065670B2
公开(公告)日：2006-06-20
申请号：US10284475
申请日：2002-10-31
申请人： Richard A. Gahan , John Hickey
发明人： Richard A. Gahan , John Hickey
IPC分类号： G06F11/00
CPC分类号： G06F11/2023 , G06F11/2028 , G06F11/2035 , H04L67/1002
摘要： Access of a malfunctioning server to a data storage facility is blocked. Characteristics such as IAmAlive signals from a server are monitored and when out of profile a malfunction is indicated and data access of that server is inhibited. Characteristics continue to be monitored for a return from the malfunction. The system can be used in a resilient cluster of servers to shut out a malfunctioning server and enable its recovery to be indicated so as to enable readmittance to the cluster.
摘要翻译：对数据存储设备的故障服务器的访问被阻止。监视来自服务器的诸如IAmAlive信号的特征，并且当外部配置文件出现故障并且禁止该服务器的数据访问时。特性继续受到监控，从故障返回。该系统可用于一个有弹性的服务器集群，以关闭故障服务器，并使其恢复被指示，以便启用对集群的导纳。

43. 发明授权

US07043205B1 Method and apparatus for opening a virtual serial communications port for establishing a wireless connection in a Bluetooth communications network 失效
标题翻译：用于打开用于在蓝牙通信网络中建立无线连接的虚拟串行通信端口的方法和装置
公开(公告)号：US07043205B1
公开(公告)日：2006-05-09
申请号：US09953700
申请日：2001-09-11
申请人： Scott Caddes , Elwin G. Hunt , Ned Plasson , William Raines , Randy C. Smith , Ronald D. Smith
发明人： Scott Caddes , Elwin G. Hunt , Ned Plasson , William Raines , Randy C. Smith , Ronald D. Smith
IPC分类号： H04B7/00
CPC分类号： H04W76/14 , H04L29/12924 , H04L61/6063 , H04L69/18 , H04L69/32 , H04W40/00 , H04W80/00 , H04W84/18 , H04W88/06
摘要： A method and apparatus for opening a communications port for communication over a wireless communication network. Specifically, one embodiment of the present invention discloses a method for opening a virtual communications (VCOM) port that is configured with a particular profile over a Bluetooth network. After an attempt to open the VCOM port is received from a first application at a first electronic device, the process is suspended until a communication path is established over the Bluetooth communication network between the first electronic device and a remote electronic device within a Bluetooth network. The remote electronic device may be selected by a user from a list of available devices. In another embodiment, a user may pre-configure the VCOM port for a specific functional profile and pre-configure a remote electronic device to the VCOM port.
摘要翻译：一种用于打开用于通过无线通信网络进行通信的通信端口的方法和装置。具体地，本发明的一个实施例公开了一种用于打开通过蓝牙网络配置有特定简档的虚拟通信（VCOM）端口的方法。在从第一电子设备的第一应用程序接收尝试打开VCOM端口之后，该过程被暂停，直到在第一电子设备和蓝牙网络内的远程电子设备之间的蓝牙通信网络上建立通信路径。远程电子设备可以由用户从可用设备的列表中选择。在另一个实施例中，用户可以为VCOM端口预先配置特定的功能配置文件，并将远程电子设备预先配置到VCOM端口。

44. 发明申请

US20060092947A1 Rules engine for access control lists in network units 有权
标题翻译：以网络为单位的访问控制列表的规则引擎
公开(公告)号：US20060092947A1
公开(公告)日：2006-05-04
申请号：US11064227
申请日：2005-02-22
申请人： Daniel O'Keeffe , Eugene O'Neill , Edele O'Malley , Kam Choi
发明人： Daniel O'Keeffe , Eugene O'Neill , Edele O'Malley , Kam Choi
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L45/00 , H04L45/60 , H04L45/7453 , H04L47/20
摘要： A rules engine for the examination of selected fields in an addressed data packet, has an access control list table of which the entries each define an access control list rule, an action and a chain identifier. The access control list rule is a basic rule which refers to a TCP flow. The engine also has an extension rule table of which the entries each define an extension rule, a respective action and a respective rule identifier. The extension rule may refer to a particular flag in a TCP header. When a packet arrives the engine searches both tales. This search is made independently of the usual address lookup. If there is a match in both tables, and the chain identifier matches the extension rule identifier the engine prescribes the action associated with the extension rule. If the chain identifier of a matched access control list rule does not match a rule identifier of a matched extension rule the engine prescribes the action associates with the access control list rule. In the absence of a match with any access control list rule the action on a packet is based on the result from a lookup engine.
摘要翻译：用于检查寻址数据分组中的所选字段的规则引擎具有访问控制列表表，其中条目各自定义访问控制列表规则，动作和链标识符。访问控制列表规则是引用TCP流的基本规则。引擎还具有扩展规则表，其中条目各自定义扩展规则，相应的动作和相应的规则标识符。扩展规则可以指TCP头中的特定标志。当一个包到达时，引擎搜索这两个故事。该搜索是独立于通常的地址查找。如果两个表中都有匹配，并且链标识符与扩展规则标识符匹配，则引擎规定与扩展规则相关联的操作。如果匹配的访问控制列表规则的链标识符与匹配的扩展规则的规则标识符不匹配，则引擎规定与访问控制列表规则相关联的动作。在没有与任何访问控制列表规则匹配的情况下，数据包上的操作基于查找引擎的结果。

45. 发明授权

US07039053B1 Packet filter policy verification system 失效
标题翻译：包过滤策略验证系统
公开(公告)号：US07039053B1
公开(公告)日：2006-05-02
申请号：US09796314
申请日：2001-02-28
申请人： Michael Freed , Michael S. Borella , Satish Amara
发明人： Michael Freed , Michael S. Borella , Satish Amara
IPC分类号： H04L12/56
CPC分类号： H04L41/0893 , H04L45/308 , H04L45/60 , H04L47/20
摘要： A method for determining the validity of an n-dimensional policy table in a router. The router may include a processor, a memory (e.g. ROM, flash memory, non-volatile memory, hard disk, etc.), and two or more policy rules stored in the memory. Each policy rule may have one or more dimensions (or parameters), designated generally by the symbol n. In accord with the method, the processor may make a determination whether any particular policy rule in the table intersects any subsequent policy rule in the table in every dimension n. If no rules in the table intersect in every dimension n, then the policy table is valid, and the router may operate normally.
摘要翻译：一种用于确定路由器中的n维策略表的有效性的方法。路由器可以包括处理器，存储器（例如，ROM，闪速存储器，非易失性存储器，硬盘等）以及存储在存储器中的两个或多个策略规则。每个策略规则可以具有通常由符号n指定的一个或多个维（或参数）。根据该方法，处理器可以确定表中的任何特定策略规则是否与每个维度n中的表中的任何后续策略规则相交。如果表中没有规则在每个维度n相交，则策略表有效，路由器可能正常运行。

46. 发明授权

US07032242B1 Method and system for distributed network address translation with network security features 有权
标题翻译：具有网络安全特性的分布式网络地址转换方法和系统
公开(公告)号：US07032242B1
公开(公告)日：2006-04-18
申请号：US09270967
申请日：1999-03-17
申请人： David Grabelsky , Michael S. Borella , Ikhlaq Sidhu , Danny M. Nessett
发明人： David Grabelsky , Michael S. Borella , Ikhlaq Sidhu , Danny M. Nessett
IPC分类号： H04K1/00 , H04L9/00 , G06F15/16
CPC分类号： H04L63/0407 , H04L29/12367 , H04L29/12405 , H04L61/2514 , H04L61/2528 , H04L63/0428
摘要： A method and system for distributed network address translation with security features. The method and system allow Internet Protocol security protocol (“IPsec”) to be used with distributed network address translation. The distributed network address translation is accomplished with IPsec by mapping a local Internet Protocol (“IP”) address of a given local network device and a IPsec Security Parameter Index (“SPI”) associated with an inbound IPsec Security Association (“SA”) that terminates at the local network device. A router allocates locally unique security values that are used as the IPsec SPIs. A router used for distributed network address translation is used as a local certificate authority that may vouch for identities of local network devices, allowing local network devices to bind a public key to a security name space that combines a global IP address for the router with a set of locally unique port numbers used for distributed network address translation. The router issues security certificates and may itself be authenticated by a higher certificate authority. Using a security certificate, a local network device may initiate and be a termination point of an IPsec security association to virtually any other network device on an IP network like the Internet or an intranet. The method and system may also allow distributed network address translation with security features to be used with Mobile IP or other protocols in the Internet Protocol suite.
摘要翻译：一种具有安全特性的分布式网络地址转换方法和系统。该方法和系统允许使用Internet协议安全协议（“IPsec”）进行分布式网络地址转换。分布式网络地址转换通过映射给定本地网络设备的本地Internet协议（“IP”）地址和与入站IPsec安全关联（“SA”）相关联的IPsec安全参数索引（“SPI”）来实现IPsec，终止于本地网络设备。路由器分配用作IPsec SPI的本地唯一安全性值。用于分布式网络地址转换的路由器被用作可以保证本地网络设备的身份的本地证书机构，允许本地网络设备将公钥绑定到安全名称空间，该安全名称空间将路由器的全局IP地址与用于分布式网络地址转换的本地唯一端口号码集。路由器发出安全证书，并且本身可能由较高的证书颁发机构认证。使用安全证书，本地网络设备可以发起IPsec安全关联的终端点，并将其作为IP网络上的任何其他网络设备（如Internet或Intranet）的终止点。该方法和系统还可以允许具有安全特征的分布式网络地址转换与移动IP或因特网协议套件中的其他协议一起使用。

47. 发明授权

US07028086B2 Apparatus, method, and computer program for detection of server-like devices on a computer network based on ingress to egress network traffic ratios 有权
标题翻译：用于基于入口到出口网络流量比在计算机网络上检测服务器状设备的装置，方法和计算机程序
公开(公告)号：US07028086B2
公开(公告)日：2006-04-11
申请号：US09934984
申请日：2001-08-22
申请人： David John Maxwell , Paul Sandie , Jonathan G. G. Tams , Stephen Kitt , Neil E Harrison
发明人： David John Maxwell , Paul Sandie , Jonathan G. G. Tams , Stephen Kitt , Neil E Harrison
IPC分类号： G06F15/173
CPC分类号： H04L41/0213 , H04L41/12
摘要： Ingress to egress network traffic ratios are determined for at least some devices within a network and server-like devices are selected on the basis of the determined ratios or a figure derived from the determined ratios. Selecting the server-like devices includes the step of selecting those devices having a value of ratio above a selected value and includes ranking the devices in order of their ratios and determining discontinuities in the values of the ratios of the ranked devices. The server-like devices are connected to a port of another device and the ingress to egress network traffic ratio is determined by determining the network traffic through the port using SNMP.
摘要翻译：针对网络中的至少一些设备确定入口到出口网络流量比率，并且基于确定的比率或从所确定的比率导出的图形来选择类似服务器的设备。选择类似服务器的设备包括选择具有高于所选值的比值的设备的步骤，并且包括按照它们的比例的顺序对设备进行排序，并且确定排名设备的比率的值的不连续性。类似服务器的设备连接到另一设备的端口，通过使用SNMP确定通过端口的网络流量来确定入口到出口网络流量比。

48. 发明授权

US07023873B2 Network device including detection of link status employing auto-negotiation 失效
标题翻译：网络设备包括使用自动协商检测链路状态
公开(公告)号：US07023873B2
公开(公告)日：2006-04-04
申请号：US09858595
申请日：2001-05-17
申请人： Patrick Gibson , Neil J MacDonald , Alan R Poulter , David J Law
发明人： Patrick Gibson , Neil J MacDonald , Alan R Poulter , David J Law
IPC分类号： H04L12/413
CPC分类号： H04B10/0799
摘要： A network device is arranged to transmit a specific identification such as the device's MAC address in Next Pages of auto-negotiation and to determine a link status to be ‘down’ if ‘Next Pages’ containing that address are received by the same port. The invention avoids the use of signal detect pins for fiber optic links.
摘要翻译：网络设备被布置为在下一页自动协商中传输诸如设备的MAC地址的特定标识，并且如果由同一端口接收到包含该地址的“下一页”，则确定链路状态为“关闭”。本发明避免了对光纤链路使用信号检测引脚。

49. 发明授权

US06989735B2 Power transfer apparatus for concurrently transmitting data and power over data wires 有权
公开(公告)号：US06989735B2
公开(公告)日：2006-01-24
申请号：US10804615
申请日：2004-03-18
申请人： David A. Fisher , Lawrence M. Burns , Stephen E. Muther
发明人： David A. Fisher , Lawrence M. Burns , Stephen E. Muther
IPC分类号： H04B1/00 , G08C19/00
CPC分类号： H04L12/10 , H04B3/542 , H04B2203/5437 , H04B2203/5441 , H04B2203/5445 , H04B2203/547 , H04B2203/5483 , H04B2203/5491 , Y10T307/832
摘要： Power supply current, sufficient to power a remote network device, is transmitted concurrently with a network data signal over a transmission line. A power-sourcing network device that can include a coupling circuit provides power and data to the remote network device. The coupling circuit can also be included in a stand-alone device. The remote network device (which can be a wireless access point) can separate the power signal from the data signal and use the power supply current to further process or retransmit the data signal. The power signal may be a low frequency relative to the frequency of the data signal, or it may be DC.

50. 发明授权

US06965942B1 Method and system for improving throughput over wireless local area networks with a dynamic contention window 有权
标题翻译：用动态争用窗口提高无线局域网吞吐量的方法和系统
公开(公告)号：US06965942B1
公开(公告)日：2005-11-15
申请号：US09759389
申请日：2001-01-12
申请人： Albert Young , BoFu Chen , Bob O'Hara , Seema Nayek , Tim Schardt
发明人： Albert Young , BoFu Chen , Bob O'Hara , Seema Nayek , Tim Schardt
IPC分类号： G06F15/16 , H04L12/43
CPC分类号： H04W74/085 , H04W84/12
摘要： A method and system for increasing the overall network throughput over a wireless local area network (WLAN). Specifically, in one embodiment of the present invention, the dynamic selection of an initial value for a contention window in the Distributed Coordinated Function (DCF) mode is determined according to the load conditions over the WLAN in a method and system. Stations and access points within a WLAN monitor conditions within the network to establish an initial value for the contention window, also called a minimum contention window value, which is lower than that set by the IEEE 802.11 communication standard. Some factors to consider in determining the load conditions include but are not limited to the following: number of transmissions; number of receptions; and number of collisions.
摘要翻译：一种用于通过无线局域网（WLAN）增加总体网络吞吐量的方法和系统。具体地说，在本发明的一个实施例中，根据在方法和系统中的WLAN上的负载条件来确定分布式协调功能（DCF）模式中的竞争窗口的初始值的动态选择。 WLAN监视器内的站点和接入点在网络内条件下建立竞争窗口的初始值，也称为最小竞争窗口值，该值低于IEEE 802.11通信标准设置的最小竞争窗口值。在确定负载条件时要考虑的一些因素包括但不限于以下：变速箱数量; 接待人数; 和碰撞次数。

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