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    System and Method for Controlling Multicast Geographic Distribution
    21.
    发明申请
    System and Method for Controlling Multicast Geographic Distribution 有权
    控制组播地理分布的系统和方法

    公开(公告)号：US20140289813A1

    公开(公告)日：2014-09-25

    申请号：US14297952

    申请日：2014-06-06

    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

    Inventor： Han Q. Nguyen ,  Huajin Jeng ,  Douglas M. Nortz

    IPC: H04L29/06

    CPC classification number: H04L12/185 ,  G06F21/10 ,  G06F21/606 ,  G06Q10/06 ,  H04L12/1845 ,  H04L12/1886 ,  H04L63/10 ,  H04L63/107 ,  H04L63/20

    Abstract: A content distribution network includes first and second controllers, and multicast enabled routers. The first controller is configured to select a multicast channel for distributing content, to determine that the content has a geographic restriction associated with a restricted area in the content distribution network, to link an exclusion policy for the content to the multicast channel while the multicast channel provides the content, and to deny a request for the content from a client system within the restricted area based on the exclusion policy. The second controller is configured to distribute the exclusion policy to the multicast enabled routers including a first router configured to store the exclusion policy, and to ignore a multicast join message from the client system within the restricted area based on the exclusion policy.

    Abstract translation: 内容分发网络包括第一和第二控制器以及启用多播的路由器。 所述第一控制器被配置为选择用于分发内容的多播信道，以确定所述内容具有与所述内容分发网络中的受限区域相关联的地理限制，以将所述内容的排除策略链接到所述多播信道，而所述多播信道 提供内容，并且基于排除策略来拒绝来自限制区域内的客户端系统的内容的请求。 第二控制器被配置为将排除策略分发到启用多播的路由器，包括配置为存储排除策略的第一路由器，并且基于排除策略忽略来自限制区域内的客户端系统的多播加入消息。

    ADVERTISING NETWORK LAYER REACHABILITY INFORMATION SPECIFYING A QUALITY OF SERVICE FOR AN IDENTIFIED NETWORK FLOW
    22.
    发明申请
    ADVERTISING NETWORK LAYER REACHABILITY INFORMATION SPECIFYING A QUALITY OF SERVICE FOR AN IDENTIFIED NETWORK FLOW 有权

    公开(公告)号：US20210152478A1

    公开(公告)日：2021-05-20

    申请号：US17161281

    申请日：2021-01-28

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Penn L. Pfautz ,  Huajin Jeng

    IPC: H04L12/851 ,  H04L12/863

    Abstract: Methods, apparatus and articles of manufacture for advertising network layer reachability information specifying a quality of service for an identified network flow are disclosed. Example methods disclosed herein to specify quality of service for network flows include receiving network layer reachability information including a first quality of service class specified for a first network flow, the network layer reachability information having been advertised by a first network element that is to receive the first network flow. Such example methods can also include updating an incoming packet determined to belong to the first network flow to indicate that the incoming packet belongs to the first quality of service class, the incoming packet being received from a second network element. Such example methods can further include, after updating the incoming packet, routing the incoming packet towards the first network element.

    Methods, apparatus, and articles of manufacture to provide a multicast virtual private network (MVPN)
    23.
    发明授权
    Methods, apparatus, and articles of manufacture to provide a multicast virtual private network (MVPN) 有权

    公开(公告)号：US10833989B2

    公开(公告)日：2020-11-10

    申请号：US16425613

    申请日：2019-05-29

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Huajin Jeng ,  Pravin Kumar Johri ,  Han Nguyen ,  Samir Saad

    IPC: H04L12/28 ,  H04L12/741 ,  H04L12/761 ,  H04L12/723 ,  H04L12/18 ,  H04L12/26 ,  H04J1/16

    Abstract: Methods, apparatus, and articles of manufacture to provide a multicast virtual private network (MVPN) are disclosed. Example methods to transmit multicast data in a network disclosed herein include monitoring, with a first network node, a multicast data flow to determine a characteristic for triggering a switch from a first logical topology for the multicast data flow to a second logical topology for the multicast data flow. Disclosed example methods also include, after the switch to the second logical topology, accessing a multicast data packet associated with a first multicast route generated for the multicast data flow from a second network node, and transmitting a first replication of the multicast data packet to a third network node via a unicast path, the first replication of the multicast data packet to include a first label provided by the third network node to identify the first multicast route.

    Advertising network layer reachability information specifying a quality of service for an identified network flow
    24.
    发明授权
    Advertising network layer reachability information specifying a quality of service for an identified network flow 有权

    公开(公告)号：US10574581B2

    公开(公告)日：2020-02-25

    申请号：US16179638

    申请日：2018-11-02

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Penn L. Pfautz ,  Huajin Jeng

    IPC: H04L12/851 ,  H04L12/863

    Abstract: Methods, apparatus and articles of manufacture for advertising network layer reachability information specifying a quality of service for a network flow are disclosed. An example first network device disclosed herein is to advertise a first flow specification and a first quality of service for a first network flow to be received by the first network device, and access a second flow specification and a second quality of service advertised by a second network device for a second network flow that is to be received by the second network device. The example first network device is also to update bits of an incoming packet that belongs to the second network flow to determine an updated incoming packet, and assign the updated incoming packet to a routing queue corresponding to the second quality of service to cause the updated incoming packet to be routed towards the second network device.

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