公开(公告)号：US20170063600A1

公开(公告)日：2017-03-02

申请号：US14841461

申请日：2015-08-31

Applicant: Juniper Networks, Inc.

Inventor： Nitin Singh ,  Kapil Arora ,  Sunil Kumar Malali

IPC: H04L12/24 ,  H04L12/721 ,  H04L12/18

CPC classification number: H04L45/66 ,  H04L12/18 ,  H04L12/1886 ,  H04L45/16 ,  H04L45/26 ,  H04L45/28 ,  H04L45/50

Abstract: In some examples, a method includes receiving, by a first provider edge (PE) network device, an egress protection label that is advertised by a second PE network device, wherein each of the first and second PE network devices are included in an Ethernet segment, wherein the first PE network device is a designated forwarder for BUM network packets in the Ethernet segment, and wherein a CE network device is multi-homed to the first and second PE network devices; in response to detecting a link failure, configuring forwarding information of the first PE network device to apply the egress protection label to the BUM network packets received by the first PE network device and forward the BUM network packets to the second PE network device; and in response to receiving the BUM network packets, forwarding the BUM network packets with the egress protection label to the second PE network device.

Abstract translation: 在一些示例中，一种方法包括由第一提供商边缘（PE）网络设备接收由第二PE网络设备发布的出口保护标签，其中第一和第二PE网络设备中的每一个包括在以太网段 其中，所述第一PE网络设备是所述以太网段中的BUM网络分组的指定转发器，并且其中CE网络设备被多归属于所述第一和第二PE网络设备; 响应于检测到链路故障，配置第一PE网络设备的转发信息，将出口保护标签应用于第一PE网络设备收到的BUM网络报文，并将BUM网络报文转发给第二PE网络设备; 并且响应于接收到BUM网络分组，将具有出口保护标签的BUM网络分组转发到第二PE网络设备。

公开(公告)号：US20160261487A1

公开(公告)日：2016-09-08

申请号：US14674569

申请日：2015-03-31

Applicant: Juniper Networks, Inc.

Inventor： Nitin Singh ,  Ryan Bickhart ,  Manoj Sharma ,  Hassan C. Hosseini

IPC: H04L12/707 ,  H04L12/721 ,  H04L12/46

CPC classification number: H04L45/22 ,  H04L12/4641 ,  H04L41/0663 ,  H04L45/28 ,  H04L45/66 ,  H04L45/70

Abstract: In general, techniques are provided for described herein that extend existing Ethernet Virtual Private Network (EVPN) protocol signaling mechanisms so that local, multi-homing PEs couple to an Ethernet segment can definitively convey their primary/backup designated forwarder (DF) status to any remote PE of the EVPN. In one example, this is accomplished by utilizing a new extended community attribute to each Ethernet A-D per EVI route advertised by each of the multi-homing PEs to specifically carry the advertising PE's primary or backup status. As such, any receiving remote PE need not rely on the arrival of individual MAC routes from a new primary PE and withdrawal of MAC routes from a former primary PE to update its forwarding information.

Abstract translation: 通常，提供了本文所述的用于扩展现有以太网虚拟专用网（EVPN）协议信令机制的技术，使得本地多归属PE耦合到以太网段可以将其主/备用指定转发器（DF）状态明确地传达到任何 EVPN的远程PE。 在一个示例中，这是通过对由每个多归属PE通告的每个EVI路由的每个以太网A-D利用新的扩展团体属性来实现的，以专门承载广告PE的主要或备用状态。 因此，任何接收的远程PE不需要依赖于来自新的主PE的各个MAC路由的到达，并且从前一个主PE获取MAC路由以更新其转发信息。