公开(公告)号：US09178816B1

公开(公告)日：2015-11-03

申请号：US14040487

申请日：2013-09-27

Applicant: Juniper Networks, Inc.

Inventor： Deepak Ojha ,  Shrinivasa Kini ,  Pankaj Shukla ,  Manoj Sharma ,  John E. Drake

IPC: H04W8/00 ,  H04L12/741

CPC classification number: H04L12/4641 ,  H04L45/02 ,  H04L45/66 ,  H04L45/74

Abstract: In general, techniques are described for providing control plane messaging in an active-active (or all-active) configuration of a multi-homed EVPN environment. In some examples, the techniques include receiving a control plane message comprising at least one address that identifies that second PE network device. The techniques may include configuring, based at least in part on the control plane message, a forwarding plane of a first PE network device to identify network packets having respective destination addresses that match the at least one address. The techniques may include determining that at least one address of the network packet matches the at least one address that identifies the second PE network device. The techniques may include, responsive to the determination, skipping a decrement of the Time-To-Live (TTL) value of the network packet, and forwarding the network packet to the second PE network device.

Abstract translation: 一般来说，描述了在多宿主EVPN环境的主动（主动）（或全部））配置中提供控制平面消息传递的技术。 在一些示例中，技术包括接收包含标识该第二PE网络设备的至少一个地址的控制平面消息。 这些技术可以包括至少部分地基于控制平面消息配置第一PE网络设备的转发平面，以识别具有与至少一个地址匹配的相应目的地地址的网络分组。 这些技术可以包括确定网络包的至少一个地址与标识第二PE网络设备的至少一个地址匹配。 所述技术可以包括响应于确定，跳过网络分组的生存时间（TTL）值的减少，并且将网络分组转发到第二PE网络设备。

公开(公告)号：US10887223B1

公开(公告)日：2021-01-05

申请号：US16131584

申请日：2018-09-14

Applicant: Juniper Networks, Inc.

Inventor： Manoj Sharma ,  Poorna Pushkala Balasubramanian ,  Nitin Singh ,  Xiaomin Wu

IPC: H04L12/753 ,  H04L12/743

Abstract: A provider edge device, capable of accessing a first type of memory and a second type of memory, may determine a network address associated with a customer edge device. The provider edge device may determine whether the customer edge device is categorized as a leaf device in an Ethernet Tree service provided by the provider edge device. The provider edge device may selectively store the network address in the first type of memory or the second type of memory based on determining whether the customer edge device is categorized as a leaf device in the Ethernet Tree service.

公开(公告)号：US10079756B1

公开(公告)日：2018-09-18

申请号：US15072601

申请日：2016-03-17

Applicant: Juniper Networks, Inc.

Inventor： Manoj Sharma ,  Poorna Pushkala Balasubramanian ,  Nitin Singh ,  Xiaomin Wu

IPC: H04L12/753 ,  H04L12/743

CPC classification number: H04L45/48 ,  H04L45/02

Abstract: A provider edge device, capable of accessing a first type of memory and a second type of memory, may determine a network address associated with a customer edge device. The provider edge device may determine whether the customer edge device is categorized as a leaf device in an Ethernet Tree service provided by the provider edge device. The provider edge device may selectively store the network address in the first type of memory or the second type of memory based on determining whether the customer edge device is categorized as a leaf device in the Ethernet Tree service.

公开(公告)号：US10050809B2

公开(公告)日：2018-08-14

申请号：US15676181

申请日：2017-08-14

Applicant: Juniper Networks, Inc.

Inventor： Manoj Sharma ,  Shrinivasa Kini ,  Siddharth A. Tuli ,  Tapraj Singh ,  Sunesh Rustagi

IPC: H04L12/28 ,  H04L12/46

Abstract: A provider edge (PE) device may receive an indication to perform a designated forwarder (DF) election associated with a network segment that includes the PE device, one or more other PE devices, and a client edge (CE) device. The PE device, the one or more other PE devices, and the CE device may be associated with an Ethernet virtual private network (EVPN) that includes a group of EVPN instances (EVIs). The PE device may perform the DF election in order to determine election information associated with the PE device. The election information may include information associated with a particular EVI, of the group of EVIs, for which the PE device is to act as a DF. The PE device may provide the election information to the CE device to cause the CE device to provide traffic, associated with a particular VLAN included in the particular EVI, to the PE device.

公开(公告)号：US09929940B2

公开(公告)日：2018-03-27

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: H04L12/28 ,  H04L12/707 ,  H04L12/24 ,  H04L12/703 ,  H04L12/46 ,  H04L12/721

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.

公开(公告)号：US20180034667A1

公开(公告)日：2018-02-01

申请号：US15676181

申请日：2017-08-14

Applicant: Juniper Networks, Inc.

Inventor： Manoj Sharma ,  Shrinivasa Kini ,  Siddharth A. Tuli ,  Tapraj Singh ,  Sunesh Rustagi

IPC: H04L12/46

CPC classification number: H04L12/4675

Abstract: A provider edge (PE) device may receive an indication to perform a designated forwarder (DF) election associated with a network segment that includes the PE device, one or more other PE devices, and a client edge (CE) device. The PE device, the one or more other PE devices, and the CE device may be associated with an Ethernet virtual private network (EVPN) that includes a group of EVPN instances (EVIs). The PE device may perform the DF election in order to determine election information associated with the PE device. The election information may include information associated with a particular EVI, of the group of EVIs, for which the PE device is to act as a DF. The PE device may provide the election information to the CE device to cause the CE device to provide traffic, associated with a particular VLAN included in the particular EVI, to the PE device.

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。