Methods and apparatus to analyze autonomous system peering policies
    1.
    发明授权
    Methods and apparatus to analyze autonomous system peering policies 有权
    分析自主系统对等政策的方法和手段

    公开(公告)号:US07885277B2

    公开(公告)日:2011-02-08

    申请号:US12331148

    申请日:2008-12-09

    IPC分类号: H04L12/28

    CPC分类号: H04L45/04

    摘要: Methods and apparatus to analyze autonomous system (AS) peering policies are disclosed. A disclosed example method comprises obtaining routing information from two or more border routers of a first AS, wherein the routing information identifies two or more routes to a prefix associated with a second AS, and wherein the second AS is a peer of the first AS, identifying one of the two or more routes as an inferior route advertised by the second AS based on the routing information, and determining whether a routing impact is present within the first AS due to the advertised inferior route.

    摘要翻译: 披露了分析自治系统(AS)对等政策的方法和手段。 所公开的示例性方法包括从第一AS的两个或多个边界路由器获得路由信息,其中所述路由信息识别到与第二AS相关联的前缀的两条或多条路由,并且其中所述第二AS是所述第一AS的对等体, 根据所述路由信息,将所述两条或更多路由中的一条路由识别为由所述第二AS发布的劣路,并且由于所述通告的下行路由,确定所述第一AS内是否存在路由冲击。

    METHODS AND APPARATUS TO ANALYZE AUTONOMOUS SYSTEM PEERING POLICIES
    2.
    发明申请
    METHODS AND APPARATUS TO ANALYZE AUTONOMOUS SYSTEM PEERING POLICIES 有权
    分析自动系统对等政策的方法和设备

    公开(公告)号:US20100142543A1

    公开(公告)日:2010-06-10

    申请号:US12331148

    申请日:2008-12-09

    IPC分类号: H04L12/56

    CPC分类号: H04L45/04

    摘要: Methods and apparatus to analyze autonomous system (AS) peering policies are disclosed. A disclosed example method comprises obtaining routing information from two or more border routers of a first AS, wherein the routing information identifies two or more routes to a prefix associated with a second AS, and wherein the second AS is a peer of the first AS, identifying one of the two or more routes as an inferior route advertised by the second AS based on the routing information, and determining whether a routing impact is present within the first AS due to the advertised inferior route.

    摘要翻译: 披露了分析自治系统(AS)对等政策的方法和手段。 所公开的示例性方法包括从第一AS的两个或多个边界路由器获得路由信息,其中所述路由信息识别到与第二AS相关联的前缀的两条或多条路由,并且其中所述第二AS是所述第一AS的对等体, 根据所述路由信息,将所述两条或更多路由中的一条路由识别为由所述第二AS发布的劣路,并且由于所述通告的下行路由,确定所述第一AS内是否存在路由冲击。

    Anycast-based internet protocol redirection to alleviate partial routing tables
    4.
    发明授权
    Anycast-based internet protocol redirection to alleviate partial routing tables 有权
    基于Anycast的互联网协议重定向以减轻部分路由表

    公开(公告)号:US07864765B2

    公开(公告)日:2011-01-04

    申请号:US12286479

    申请日:2008-09-30

    IPC分类号: H04L12/56 H04J1/16

    摘要: Systems and methods are described that instruct routers having constrained hardware/memory to redirect all outbound traffic to a helper router. The helper router contains a full routing table that can forward any packet to its destination. In a large service provider network, helper routers may be distributed at multiple locations across the network. Since packets must detour through the helper router, the distributed helper routers minimize latency.

    摘要翻译: 描述了指示具有受限硬件/存储器的路由器将所有出站流量重定向到辅助路由器的系统和方法。 辅助路由器包含一个完整的路由表,可以将任何数据包转发到其目的地。 在大型服务提供商网络中,辅助路由器可以分布在整个网络的多个位置。 由于数据包必须通过辅助路由器绕行,所以分布式帮助路由器将延迟最小化。

    Passive Video Caching for Edge Aggregation Devices
    7.
    发明申请
    Passive Video Caching for Edge Aggregation Devices 有权
    边缘聚合设备的被动视频缓存

    公开(公告)号:US20110314508A1

    公开(公告)日:2011-12-22

    申请号:US13216566

    申请日:2011-08-24

    IPC分类号: H04N21/20 H04N7/173

    摘要: Techniques for delivering video on demand channel content via streaming from a first edge aggregation device are provided. A processor is provided that is coupled to a memory. The processor can be operable to receive a request from a requesting device for video on demand channel content, search an index to locate the video on demand channel content, identify a location of the requesting device with respect to a first edge aggregation device and instruct the first edge aggregation device to forward the video on demand channel content to the location of the requesting device. Other embodiments are described.

    摘要翻译: 提供了通过来自第一边缘聚合设备的流式传送视频点播频道内容的技术。 提供了一个耦合到存储器的处理器。 处理器可操作以从请求设备接收用于视频点播频道内容的请求,搜索索引以定位视频点播频道内容,识别相对于第一边缘聚合设备的请求设备的位置,并指示 第一边缘聚合设备,用于将视频点播频道内容转发到请求设备的位置。 描述其他实施例。

    Anycast-based internet protocol redirection to alleviate partial routing tables
    8.
    发明申请
    Anycast-based internet protocol redirection to alleviate partial routing tables 有权
    基于Anycast的互联网协议重定向以减轻部分路由表

    公开(公告)号:US20100080234A1

    公开(公告)日:2010-04-01

    申请号:US12286479

    申请日:2008-09-30

    IPC分类号: H04L12/56

    摘要: Systems and methods are described that instruct routers having constrained hardware/memory to redirect all outbound traffic to a helper router. The helper router contains a full routing table that can forward any packet to its destination. In a large service provider network, helper routers may be distributed at multiple locations across the network. Since packets must detour through the helper router, the distributed helper routers minimize latency.

    摘要翻译: 描述了指示具有受限硬件/存储器的路由器将所有出站流量重定向到辅助路由器的系统和方法。 辅助路由器包含一个完整的路由表,可以将任何数据包转发到其目的地。 在大型服务提供商网络中,辅助路由器可以分布在整个网络的多个位置。 由于数据包必须通过辅助路由器绕行,所以分布式帮助路由器将延迟最小化。

    Demand-based distribution of internet protocol forwarding information within a router
    9.
    发明申请
    Demand-based distribution of internet protocol forwarding information within a router 有权
    路由器内互联网协议转发信息的需求分配

    公开(公告)号:US20100080233A1

    公开(公告)日:2010-04-01

    申请号:US12286477

    申请日:2008-09-30

    IPC分类号: H04L12/56

    摘要: Systems and methods are described that reduce the amount of forwarding table state on components within routers. This is performed by having a router line card generate a prefix-request message to its central processor which contains a full routing table. Line cards only populate their forwarding tables for packets needed to transmit. By being only concerned with information of packets that are traversing each line card, the amount of required memory and processing required may be reduced for a complete forwarding table.

    摘要翻译: 描述了减少路由器内部组件转发表状态的数量的系统和方法。 这通过使路由器线路卡向其中央处理器生成包含完整路由表的前缀请求消息来执行。 线路卡仅填充转发表,用于传输所需的数据包。 通过仅涉及正在遍历每个线路卡的信息包的信息,可以减少所需的存储器量和所需的处理量,以用于完整的转发表。