公开(公告)号：US09055000B1

公开(公告)日：2015-06-09

申请号：US13717533

申请日：2012-12-17

Applicant: Juniper Networks, Inc.

Inventor： Kaushik Ghosh ,  Ramasamy Ramanathan ,  Anil Lohiya ,  Manoj Sharma ,  Shrinivasa Kini ,  Cunzhi Lu

IPC: H04L12/56 ,  H04L12/721

CPC classification number: H04L45/66 ,  H04L45/00 ,  H04L45/50 ,  H04L45/74 ,  H04L49/604 ,  H04L61/2015

Abstract: In general, techniques for facilitating a distributed network (L3) subnet by which multiple independent control planes of network devices connected to physically separate L2 networks provide L2 reachability to/from a single L3 subnet. In some examples, a shared L2 network physically situated to connect a plurality of physically separate L2 networks “stitches” the L2 networks together within the respective, independent control planes of switches such that the control planes bridge L2 traffic for a single bridge domain for the separate L2 networks to the shared L2 network and visa-versa. Each of the independent control planes may be configured with a virtual IRB instance associated with the bridge domain and with a common network subnet. Each of the virtual IRBs provides a functionally similar routing interface for the single bridge domain for the separate L2 networks and allows the shared network subnet to be distributed among the independent control planes.

Abstract translation: 通常，用于促进分布式网络（L3）子网的技术通过其连接到物理上分离的L2网络的网络设备的多个独立控制平面提供到/来自单个L3子网的L2可达性。 在一些示例中，物理地定位以连接多个物理上分离的L2网络的共享L2网络将L2网络在交换机的相应的独立控制平面内“联结”在一起，使得控制平面桥接用于单桥域的L2业务 将L2网络分离到共享的L2网络，反之亦然。 每个独立控制平面可以配置有与网桥域相关联的虚拟IRB实例以及公共网络子网。 每个虚拟IRB为单独的L2网络的单桥域提供功能相似的路由接口，并允许共享网络子网在独立控制平面之间分布。

公开(公告)号：US09647924B2

公开(公告)日：2017-05-09

申请号：US14456250

申请日：2014-08-11

Applicant: Juniper Networks, Inc.

Inventor： Manish Gupta ,  Ramasamy Ramanathan ,  Sri S. Goli

IPC: H04L12/28 ,  H04L12/751 ,  H04L12/54 ,  H04J3/14 ,  H04L12/723

CPC classification number: H04L45/02 ,  H04J3/14 ,  H04L12/56 ,  H04L45/507

Abstract: A first provider edge (PE) device is configured to: receive a Label Distribution Protocol (LDP) MAC Flush message from a PE device via an input port; flush a routing table in response to the LDP MAC Flush message; determine whether the LDP MAC Flush message comprises a PE identifier corresponding to the PE device; generate a Topology Change Notification (TCN) message based on the LDP MAC Flush message when the LDP MAC Flush message comprises the PE identifier corresponding to the PE device; and output the TCN message.

公开(公告)号：US09838309B1

公开(公告)日：2017-12-05

申请号：US14733532

申请日：2015-06-08

Applicant: Juniper Networks, Inc.

Inventor： Kaushik Ghosh ,  Ramasamy Ramanathan ,  Anil Lohiya ,  Manoj Sharma ,  Shrinivasa Kini ,  Cunzhi Lu

IPC: H04L12/721 ,  H04L12/741 ,  H04L29/12 ,  H04L12/701 ,  H04L12/723 ,  H04L12/931

CPC classification number: H04L45/66 ,  H04L45/00 ,  H04L45/50 ,  H04L45/74 ,  H04L49/604 ,  H04L61/2015

Abstract: In general, techniques for facilitating a distributed network (L3) subnet by which multiple independent control planes of network devices connected to physically separate L2 networks provide L2 reachability to/from a single L3 subnet. In some examples, a shared L2 network physically situated to connect a plurality of physically separate L2 networks “stitches” the L2 networks together within the respective, independent control planes of switches such that the control planes bridge L2 traffic for a single bridge domain for the separate L2 networks to the shared L2 network and visa-versa. Each of the independent control planes may be configured with a virtual IRB instance associated with the bridge domain and with a common network subnet. Each of the virtual IRBs provides a functionally similar routing interface for the single bridge domain for the separate L2 networks and allows the shared network subnet to be distributed among the independent control planes.

公开(公告)号：US20140348027A1

公开(公告)日：2014-11-27

申请号：US14456250

申请日：2014-08-11

Applicant: Juniper Networks, Inc.

Inventor： Manish GUPTA ,  Ramasamy Ramanathan ,  Sri S. Goli

IPC: H04L12/751

CPC classification number: H04L45/02 ,  H04J3/14 ,  H04L12/56 ,  H04L45/507

Abstract: A first provider edge (PE) device is configured to: receive a Label Distribution Protocol (LDP) MAC Flush message from a PE device via an input port; flush a routing table in response to the LDP MAC Flush message; determine whether the LDP MAC Flush message comprises a PE identifier corresponding to the PE device; generate a Topology Change Notification (TCN) message based on the LDP MAC Flush message when the LDP MAC Flush message comprises the PE identifier corresponding to the PE device; and output the TCN message.

Abstract translation: 第一提供商边缘（PE）设备被配置为：经由输入端口从PE设备接收标签分发协议（LDP）MAC刷新消息; 刷新路由表以响应LDP MAC Flush消息; 确定LDP MAC Flush消息是否包括与PE设备相对应的PE标识符; 当LDP MAC Flush消息包括与PE设备对应的PE标识符时，基于LDP MAC Flush消息生成拓扑变化通知（TCN）消息; 并输出TCN消息。