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    Method and apparatus for estimating delay and jitter between network routers
    51.
    发明授权
    Method and apparatus for estimating delay and jitter between network routers 失效
    用于估计网络路由器之间的延迟和抖动的方法和装置

    公开(公告)号：US06868068B1

    公开(公告)日：2005-03-15

    申请号：US09746233

    申请日：2000-12-21

    申请人： Bijendra N. Jain ,  Keith McCloghrie

    发明人： Bijendra N. Jain ,  Keith McCloghrie

    IPC分类号： H04L12/26 ,  H04L12/56

    CPC分类号： H04L43/087

    摘要： A delay measurement technique according to an embodiment according to the present invention is based on the precept, ascertained by the inventors, that a link between network nodes will often contribute to the delay encountered between several different pairs of network nodes. Such a technique identifies the path between each pair of nodes by a list of links that form the path. Paths that are orthogonal are treated as being necessary for describing the delays encountered between nodes, and, once the requisite set of orthogonal paths has been derived, all other paths can be described in terms of one or more of these orthogonal paths. Such a technique also lends itself to matrix representation of the paths, and the use of matrix manipulation techniques in deriving delay and jitter.

    摘要翻译： 根据本发明的实施例的延迟测量技术基于由发明人确定的规则，网络节点之间的链路通常将有助于在几个不同的网络节点对之间遇到的延迟。 这种技术通过形成路径的链接列表来识别每对节点之间的路径。 正交的路径被视为描述在节点之间遇到的延迟所必需的，并且一旦已经导出必需的正交路径集合，就可以用这些正交路径中的一个或多个来描述所有其他路径。 这种技术也适用于路径的矩阵表示，以及使用矩阵操纵技术来推导延迟和抖动。

    Multiple VLAN Architecture system
    52.
    发明授权
    Multiple VLAN Architecture system 有权
    多VLAN体系结构

    公开(公告)号：US06219699B1

    公开(公告)日：2001-04-17

    申请号：US09277329

    申请日：1999-03-26

    申请人： Keith McCloghrie ,  Bernard R. James ,  Christopher Young ,  Norman W. Finn

    发明人： Keith McCloghrie ,  Bernard R. James ,  Christopher Young ,  Norman W. Finn

    IPC分类号： G06F1340

    CPC分类号： H04L12/4645 ,  H04L12/4666 ,  H04L12/4679

    摘要： A system in which a single VLAN architecture spans multiple VLAN transport protocols and technologies, including a method and system in which multiple different VLANs may be combined in a single enterprise network. Each LAN-switch in the system identifies each frame with an identifier, and associates that identifier with particular VLAN identifiers for each type of VLAN technology. When a frame is bridged or routed from a first type of VLAN to a second type of VLAN, the first VLAN encapsulation is removed and the second VLAN encapsulation is added, with appropriate change in the VLAN identifier for the frame or packet. The identifier may also be implicit for the frame, such as when a particular set of sender's MAC addresses are identified with a particular VLAN. Individual VLANs, of whatever architecture, may be added, configured or reconfigured, modified, or deleted, using control tools associated with the multiple VLAN architecture system. Individual ports may be associated with particular VLANS, or may be designated “dynamic” so that frames or packets associated with those ports are associated with particular VLANs in response to source or destination addresses or other information.

    摘要翻译： 单个VLAN架构跨越多个VLAN传输协议和技术的系统，包括可以在单个企业网络中组合多个不同VLAN的方法和系统。 系统中的每个LAN交换机用标识符识别每个帧，并将该标识符与每种类型的VLAN技术的特定VLAN标识相关联。 当帧从第一种类型的VLAN桥接或路由到第二种类型的VLAN时，将删除第一个VLAN封装，并添加第二个VLAN封装，并适当更改帧或数据包的VLAN标识。 该标识符对于该帧也可以是隐式的，诸如当用特定VLAN识别特定发送者的MAC地址集合时。 可以使用与多VLAN架构系统相关联的控制工具，添加，配置或重新配置，修改或删除任何架构的各个VLAN。 单个端口可以与特定VLAN相关联，或者可以被指定为“动态”，使得与这些端口相关联的帧或分组响应于源或目的地地址或其他信息与特定VLAN相关联。

    Method and apparatus for managing network devices using a parsable string that conforms to a specified grammar
    57.
    发明授权
    Method and apparatus for managing network devices using a parsable string that conforms to a specified grammar 有权
    使用符合指定语法的可解析字符串来管理网络设备的方法和装置

    公开(公告)号：US07054926B1

    公开(公告)日：2006-05-30

    申请号：US10056309

    申请日：2002-01-23

    申请人： Vasmi M. Abidi ,  Hongchi Shih ,  Keith McCloghrie

    发明人： Vasmi M. Abidi ,  Hongchi Shih ,  Keith McCloghrie

    IPC分类号： G06F15/173

    CPC分类号： H04L41/0213 ,  H04L67/125 ,  H04L69/06

    摘要： A method and apparatus are disclosed for managing network devices using a parsable string that conforms to a specified grammar. The parsable string is used to represent locations of entities and is called an entity location specifier. The grammar may conform to Augmented Backus-Naur Form (ABNF). The entity location specifier comprises one or more location elements taken from a superset of location elements needed to specify the locations of entities for network device platforms. The superset of location elements can include both physical and logical entities. As a result, a network management application can retrieve a description of entities and elements contained in a network device using a single request, and can receive a single string value that is parsable to identify individual entities or elements in the device.

    摘要翻译： 公开了一种使用符合指定语法的可解析字符串来管理网络设备的方法和装置。 可解析字符串用于表示实体的位置，称为实体位置说明符。 语法可能符合增强的Backus-Naur表格（ABNF）。 实体位置说明符包括从指定网络设备平台的实体位置所需的位置元素的超集中取出的一个或多个位置元素。 位置元素的超集可以包括物理和逻辑实体。 因此，网络管理应用程序可以使用单个请求检索包含在网络设备中的实体和元素的描述，并且可以接收可解析以识别设备中的各个实体或元件的单个字符串值。

    Method and apparatus for estimating delay and jitter between network routers coupled to background network
    59.
    发明授权
    Method and apparatus for estimating delay and jitter between network routers coupled to background network 失效
    用于估计耦合到背景网络的网络路由器之间的延迟和抖动的方法和装置

    公开(公告)号：US06885642B1

    公开(公告)日：2005-04-26

    申请号：US09609302

    申请日：2000-06-30

    申请人： Bijendra N. Jain ,  Keith McCloghrie

    发明人： Bijendra N. Jain ,  Keith McCloghrie

    IPC分类号： H04L12/56

    CPC分类号： H04L45/121

    摘要： A delay measurement technique according to an embodiment according to the present invention is based on the precept, ascertained by the inventors, that a link between network nodes will often contribute to the delay encountered between several different pairs of network nodes. Such a technique identifies the path between each pair of nodes by a list of links that form the path. Paths that are orthogonal are treated as being necessary for describing the delays encountered between nodes, and, once the requisite set of orthogonal paths has been derived, all other paths can be described in terms of one or more of these orthogonal paths. Such a technique also lends itself to matrix representation of the paths, and the use of matrix manipulation techniques in deriving delay and jitter.

    摘要翻译： 根据本发明的实施例的延迟测量技术基于由发明人确定的规则，网络节点之间的链路通常将有助于在几个不同的网络节点对之间遇到的延迟。 这种技术通过形成路径的链接列表来识别每对节点之间的路径。 正交的路径被视为描述在节点之间遇到的延迟所必需的，并且一旦已经导出必需的正交路径集合，就可以用这些正交路径中的一个或多个来描述所有其他路径。 这种技术也适用于路径的矩阵表示，以及使用矩阵操纵技术来推导延迟和抖动。

    Multiple VLAN architecture system
    60.
    发明授权
    Multiple VLAN architecture system 失效
    多VLAN架构系统

    公开(公告)号：US6035105A

    公开(公告)日：2000-03-07

    申请号：US582074

    申请日：1996-01-02

    申请人： Keith McCloghrie ,  Bernard R. James ,  Christopher Young ,  Norman W. Finn

    发明人： Keith McCloghrie ,  Bernard R. James ,  Christopher Young ,  Norman W. Finn

    IPC分类号： H04L12/46 ,  G06F13/40 ,  H04L12/28

    CPC分类号： H04L12/4645 ,  H04L12/4666 ,  H04L12/4679

    摘要： A system in which a single VLAN architecture spans multiple VLAN transport protocols and technologies, including a method and system in which multiple different VLANs may be combined in a single enterprise network. Each LAN-switch in the sytem identifies each frame with an identifier, and associates that identifier with particular VLAN identifiers for each type of VLAN technology. When a frame is bridged or routed from a first type of VLAN to a second type of VLAN, the first VLAN encapsulation is removed and the second VLAN encapsulation is added, with appropriate change in the VLAN identifier for the frame or packet. The identifier may also be implicit for the frame, such as when a particular set of sender's MAC addresses are identified with a particular VLAN. Individual VLANs, of whatever architecture, may be added, configured or reconfigured, modified, or deleted, using control tools associated with the multiple VLAN architecture system. Individual ports may be associated with particular VLANs, or may be designated "dynamic" so that frames or packets associated with those ports are associated with particular VLANs in response to source or destination addresses or other information.

    摘要翻译： 单个VLAN架构跨越多个VLAN传输协议和技术的系统，包括可以在单个企业网络中组合多个不同VLAN的方法和系统。 系统中的每个LAN交换机用标识符标识每个帧，并将该标识符与每种类型的VLAN技术的特定VLAN标识相关联。 当帧从第一种类型的VLAN桥接或路由到第二种类型的VLAN时，将删除第一个VLAN封装，并添加第二个VLAN封装，并适当更改帧或数据包的VLAN标识。 该标识符对于该帧也可以是隐式的，诸如当用特定VLAN识别特定发送者的MAC地址集合时。 可以使用与多VLAN架构系统相关联的控制工具，添加，配置或重新配置，修改或删除任何架构的各个VLAN。 单个端口可以与特定VLAN相关联，或者可以被指定为“动态”，使得与这些端口相关联的帧或分组响应于源或目的地地址或其他信息与特定VLAN相关联。