System and method for improving network performance and security by controlling topology information
    1.
    发明申请
    System and method for improving network performance and security by controlling topology information 有权
    通过控制拓扑信息提高网络性能和安全性的系统和方法

    公开(公告)号:US20070237095A1

    公开(公告)日:2007-10-11

    申请号:US11400479

    申请日:2006-04-05

    IPC分类号: H04L12/28 H04L12/56

    CPC分类号: H04L45/54 H04L45/02

    摘要: A system for optimizing the performance of a network. In an illustrative embodiment, the system includes a memory containing one or more data structures data structures. A first module determines transit-only information. A second module selectively omits the transit-only information from the one or more data structures. In a more specific embodiment, the one or more data structures include one or more tables. The transit-only information includes interface Internet Protocol (IP) addresses associated with network interfaces that are transit-only interfaces. The route information may include network topology information. The one or more tables may include a network topology table. Plural routers positioned in the network incorporate one or more instances of the system. The routers may employ one or more routing protocols, such as include Enhanced Interior Gateway Routing Protocol (EIGRP) or Routing Information Protocol (RIP).

    摘要翻译: 用于优化网络性能的系统。 在说明性实施例中,系统包括包含一个或多个数据结构数据结构的存储器。 第一个模块确定只传输信息。 第二模块选择性地省略来自一个或多个数据结构的仅传输信息。 在更具体的实施例中,一个或多个数据结构包括一个或多个表。 仅传输信息包括与作为仅传输接口的网络接口相关联的接口因特网协议(IP)地址。 路由信息可以包括网络拓扑信息。 一个或多个表可以包括网络拓扑表。 位于网络中的多个路由器包含系统的一个或多个实例。 路由器可以采用一个或多个路由协议,诸如包括增强型内部网关路由协议(EIGRP)或路由信息协议(RIP)。

    Techniques to support asymmetrical static/dynamic adjacency in routers
    2.
    发明申请
    Techniques to support asymmetrical static/dynamic adjacency in routers 有权
    支持路由器不对称静态/动态邻接的技术

    公开(公告)号:US20070237142A1

    公开(公告)日:2007-10-11

    申请号:US11398825

    申请日:2006-04-05

    IPC分类号: H04L12/56

    CPC分类号: H04L45/16 H04L45/00 H04L45/02

    摘要: A static neighbor configured network device is configured with a static neighbor feature including a static neighbor list of network devices. The static neighbor configured network device is in a network segment that includes a dynamically configured network device. The static neighbor configured network device receives a multicast packet from the dynamically configured network device. It is determined if the dynamically configured network device is included in the static neighbor list of the static neighbor configured network device. The multicast packet is accepted if the dynamically configured network device is found in the neighbor list for the static neighbor configured network device. Also, adjacency for the static neighbor configured network device is not lost with any other currently adjacent network devices when the multicast packet is received.

    摘要翻译: 静态邻居配置的网络设备配置了静态邻居特性,包括网络设备的静态邻居列表。 静态邻居配置的网络设备位于包含动态配置的网络设备的网段中。 静态邻居配置的网络设备从动态配置的网络设备接收组播报文。 确定动态配置的网络设备是否包含在静态邻居配置的网络设备的静态邻居列表中。 如果在静态邻居配置的网络设备的邻居列表中找到动态配置的网络设备,则接收组播数据包。 此外,当接收到多播分组时,静态邻居配置的网络设备的邻接不会与任何其他当前相邻的网络设备丢失。

    Creating non-transit nodes in a link network
    3.
    发明授权
    Creating non-transit nodes in a link network 有权
    在链路网络中创建非传输节点

    公开(公告)号:US07796537B2

    公开(公告)日:2010-09-14

    申请号:US11736563

    申请日:2007-04-17

    IPC分类号: H04L12/28 G06F15/177

    CPC分类号: H04L45/026 H04L45/02

    摘要: In one embodiment, a method includes receiving a first link state initiation (HELLO) message from a first neighboring router. The HELLO message requests that a recipient node send a unique identifier for itself in a link state routing protocol. In response to receiving the first HELLO message, a first response message is sent that includes a first identifier from an identifier pool. The identifier pool contains for a local node a plurality of network identifiers that are unique among all nodes in the network that uses the link state routing protocol. A second HELLO message is received from a different second neighboring router. In response to receiving the second HELLO message, a second response message is sent that includes a different second identifier from the identifier pool.

    摘要翻译: 在一个实施例中,一种方法包括从第一相邻路由器接收第一链路状态发起(HELLO)消息。 HELLO消息请求接收方节点在链路状态路由协议中为其自身发送唯一的标识符。 响应于接收到第一HELLO消息,发送包括来自标识符池的第一标识符的第一响应消息。 标识符池为本地节点包含在网络中使用链路状态路由协议的所有节点中唯一的多个网络标识符。 从不同的第二相邻路由器接收第二个HELLO消息。 响应于接收到第二HELLO消息,发送包含来自标识符池的不同的第二标识符的第二响应消息。

    Techniques to support asymmetrical static/dynamic adjacency in routers
    4.
    发明授权
    Techniques to support asymmetrical static/dynamic adjacency in routers 有权
    支持路由器不对称静态/动态邻接的技术

    公开(公告)号:US07583672B2

    公开(公告)日:2009-09-01

    申请号:US11398825

    申请日:2006-04-05

    IPC分类号: H04L12/28

    CPC分类号: H04L45/16 H04L45/00 H04L45/02

    摘要: A static neighbor configured network device is configured with a static neighbor feature including a static neighbor list of network devices. The static neighbor configured network device is in a network segment that includes a dynamically configured network device. The static neighbor configured network device receives a multicast packet from the dynamically configured network device. It is determined if the dynamically configured network device is included in the static neighbor list of the static neighbor configured network device. The multicast packet is accepted if the dynamically configured network device is found in the neighbor list for the static neighbor configured network device. Also, adjacency for the static neighbor configured network device is not lost with any other currently adjacent network devices when the multicast packet is received.

    摘要翻译: 静态邻居配置的网络设备配置了静态邻居特性,包括网络设备的静态邻居列表。 静态邻居配置的网络设备位于包含动态配置的网络设备的网段中。 静态邻居配置的网络设备从动态配置的网络设备接收组播报文。 确定动态配置的网络设备是否包含在静态邻居配置的网络设备的静态邻居列表中。 如果在静态邻居配置的网络设备的邻居列表中找到动态配置的网络设备,则接收组播数据包。 此外,当接收到多播分组时,静态邻居配置的网络设备的邻接不会与任何其他当前相邻的网络设备丢失。

    Techniques for one-way synchronization of routing information among intermediate nodes
    5.
    发明授权
    Techniques for one-way synchronization of routing information among intermediate nodes 有权
    中间节点之间路由信息单向同步的技术

    公开(公告)号:US07768995B2

    公开(公告)日:2010-08-03

    申请号:US11497224

    申请日:2006-08-01

    IPC分类号: H04L12/28 H04L12/56

    CPC分类号: H04L45/02 H04L45/021

    摘要: Techniques for synchronizing routing data include determining whether conditions are satisfied for one-way transfer with an adjacent router. If it is determined that conditions are satisfied for one-way transfer of routing table data with the adjacent router, then a refresh-notice message is sent from the initiating router to the adjacent router. The refresh-notice message includes data that indicates a particular direction for transfer of routing table data. If the particular direction is inbound, then a copy of an adjacent routing table is received without sending a copy of the initiating router's own routing table. If the particular direction is outbound, then a copy of the own routing table is sent without receiving a copy of the adjacent routing table.

    摘要翻译: 用于同步路由数据的技术包括确定是否满足用于与相邻路由器的单向传输的条件。 如果确定与相邻路由器的路由表数据的单向传输满足条件,则从启动路由器向相邻路由器发送刷新通知消息。 刷新通知消息包括指示用于传送路由表数据的特定方向的数据。 如果特定方向是入站的,则接收相邻路由表的副本而不发送启动路由器自己的路由表的副本。 如果特定方向是出站的,则发送自己的路由表的副本而不接收相邻路由表的副本。

    Creating Non-transit Nodes in a Link State Network
    6.
    发明申请
    Creating Non-transit Nodes in a Link State Network 有权
    在链路状态网络中创建非转接节点

    公开(公告)号:US20080259820A1

    公开(公告)日:2008-10-23

    申请号:US11736563

    申请日:2007-04-17

    IPC分类号: H04L12/28

    CPC分类号: H04L45/026 H04L45/02

    摘要: In one embodiment, a method includes receiving a first link state initiation (HELLO) message from a first neighboring router. The HELLO message requests that a recipient node send a unique identifier for itself in a link state routing protocol. In response to receiving the first HELLO message, a first response message is sent that includes a first identifier from an identifier pool. The identifier pool contains for a local node a plurality of network identifiers that are unique among all nodes in the network that uses the link state routing protocol. A second HELLO message is received from a different second neighboring router. In response to receiving the second HELLO message, a second response message is sent that includes a different second identifier from the identifier pool.

    摘要翻译: 在一个实施例中,一种方法包括从第一相邻路由器接收第一链路状态发起(HELLO)消息。 HELLO消息请求接收方节点在链路状态路由协议中为其自身发送唯一的标识符。 响应于接收到第一HELLO消息,发送包括来自标识符池的第一标识符的第一响应消息。 标识符池为本地节点包含在网络中使用链路状态路由协议的所有节点中唯一的多个网络标识符。 从不同的第二相邻路由器接收第二个HELLO消息。 响应于接收到第二HELLO消息,发送包含来自标识符池的不同的第二标识符的第二响应消息。

    Preventing Loops during Recovery in Network Rings Using Cost Metric Routing Protocol
    7.
    发明申请
    Preventing Loops during Recovery in Network Rings Using Cost Metric Routing Protocol 审中-公开
    使用成本计量路由协议在网络环中恢复期间预防环路

    公开(公告)号:US20080212585A1

    公开(公告)日:2008-09-04

    申请号:US11681001

    申请日:2007-03-01

    IPC分类号: H04L12/56

    CPC分类号: H04L45/12 H04L45/00 H04L45/02

    摘要: In one embodiment, a method includes receiving advertised costs to reach a destination address from neighbor routers. Based on the advertised costs, a minimum first cost to reach the destination address from the local router through the neighbors is determined. The first cost corresponds to a successor among the neighbors. Also determined is a minimum second cost of the advertised costs excluding only an advertised cost from the successor. The second cost corresponds to a second router. If it is determined that communication with the successor is interrupted, and the second cost is not less than the first cost, then it is determined whether the second cost is equal to the first cost. If so, then a data packet, which is directed to the destination address and received from a neighbor that is different from the second router, is forwarded to the second router.

    摘要翻译: 在一个实施例中,一种方法包括接收通告的成本以从邻居路由器到达目的地地址。 基于广告费用,确定从本地路由器通过邻居到达目的地地址的最小首要成本。 第一个成本对应于邻居之间的继任者。 还确定了广告成本的最低二次成本,不包括继承人的广告费用。 第二个成本对应于第二个路由器。 如果确定与后继者的通信中断,并且第二成本不低于第一成本,则确定第二成本是否等于第一成本。 如果是这样,那么指向目的地址并且从与第二路由器不同的邻居接收到的数据分组被转发到第二路由器。

    Techniques for one-way synchronization of routing information among intermediate nodes
    8.
    发明申请
    Techniques for one-way synchronization of routing information among intermediate nodes 有权
    中间节点之间路由信息单向同步的技术

    公开(公告)号:US20080031236A1

    公开(公告)日:2008-02-07

    申请号:US11497224

    申请日:2006-08-01

    IPC分类号: H04L12/56

    CPC分类号: H04L45/02 H04L45/021

    摘要: Techniques for synchronizing routing data include determining whether conditions are satisfied for one-way transfer with an adjacent router. If it is determined that conditions are satisfied for one-way transfer of routing table data with the adjacent router, then a refresh-notice message is sent from the initiating router to the adjacent router. The refresh-notice message includes data that indicates a particular direction for transfer of routing table data. If the particular direction is inbound, then a copy of an adjacent routing table is received without sending a copy of the initiating router's own routing table. If the particular direction is outbound, then a copy of the own routing table is sent without receiving a copy of the adjacent routing table.

    摘要翻译: 用于同步路由数据的技术包括确定是否满足用于与相邻路由器的单向传输的条件。 如果确定与相邻路由器的路由表数据的单向传输满足条件,则从启动路由器向相邻路由器发送刷新通知消息。 刷新通知消息包括指示用于传送路由表数据的特定方向的数据。 如果特定方向是入站的,则接收相邻路由表的副本而不发送启动路由器自己的路由表的副本。 如果特定方向是出站的,则发送自己的路由表的副本而不接收相邻路由表的副本。

    Validating Internal Routing Protocol Information Passed Through an External Routing Protocol
    9.
    发明申请
    Validating Internal Routing Protocol Information Passed Through an External Routing Protocol 有权
    验证通过外部路由协议传递的内部路由协议信息

    公开(公告)号:US20080247392A1

    公开(公告)日:2008-10-09

    申请号:US11696708

    申请日:2007-04-04

    IPC分类号: H04L12/56

    CPC分类号: H04L45/50 H04L45/04

    摘要: In one embodiment, a method includes receiving authenticated site data that includes site ID data and address data. The site ID data indicates a unique site ID for each site among multiple sites for a first network that uses an internal routing protocol. Multiple edge sites of those sites are separate from each other and connected to a second network that is under separate administrative control of at least one different party. The address data indicates network addresses associated with each site of the plurality of sites. An external routing protocol message is discounted based on the authenticated site data.

    摘要翻译: 在一个实施例中,一种方法包括接收包括站点ID数据和地址数据的认证站点数据。 站点ID数据指示使用内部路由协议的第一个网络的多个站点中每个站点的唯一站点ID。 这些站点的多个边缘站点彼此分离并连接到处于至少一个不同方的单独管理控制下的第二网络。 地址数据指示与多个站点中的每个站点相关联的网络地址。 外部路由协议消息基于认证的站点数据进行打折。

    Stereo microscope with beam splitter device
    10.
    发明授权
    Stereo microscope with beam splitter device 有权
    立体显微镜与分光装置

    公开(公告)号:US08154795B2

    公开(公告)日:2012-04-10

    申请号:US12428148

    申请日:2009-04-22

    IPC分类号: G02B21/22

    CPC分类号: G02B21/22 A61B90/20

    摘要: The present invention relates to a stereo microscope (20) with a first and a second main beam path (21, 22), the spacing of which defines a stereo base (23), wherein an axis of the microscope (24) extends through the middle of the stereo base (23) parallel to the main beam paths (21, 22), and with an optical beam splitter device (30) for producing an assistant beam path (31) and a documentation beam path (32), wherein the direction of the assistant beam path (31) in a first position is rotated by 180° to the direction of the assistant beam path (31) in a second position of the beam splitter device (30), and the decoupled documentation beam path (32) in both positions of the beam splitter device (30) is in each case perpendicular to the decoupled assistant beam path (31), and wherein in both the first and second positions of the beam splitter device (30) the assistant beam path (31) can in each case be decoupled at least from the first main beam path (21) and the documentation beam path (32) can in each case be decoupled at least from the second main beam path (22).

    摘要翻译: 本发明涉及具有第一和第二主光束路径(21,22)的立体显微镜(20),其间隔限定了立体声基座(23),其中显微镜(24)的轴线延伸通过 平行于主光束路径(21,22)的立体声基座(23)的中间,以及用于产生辅助光束路径(31)和文档光束路径(32)的光束分离器装置(30),其中, 辅助光束路径(31)的第一位置的方向在分束器装置(30)的第二位置中向辅助光束路径(31)的方向旋转180°,并且解耦文档光束路径(32) 在每个情况下,分束器装置(30)的两个位置垂直于解耦辅助光束路径(31),并且其中在分束器装置(30)的第一和第二位置中,辅助光束路径(31) )可以在每种情况下至少从第一主光束路径(21)和文档光束拍照解耦 在每种情况下,h(32)可以至少与第二主光束路径(22)分离。