公开(公告)号：US10862708B2

公开(公告)日：2020-12-08

申请号：US16368818

申请日：2019-03-28

Applicant: Juniper Networks, Inc.

Inventor： Lili Wang ,  Kaliraj Vairavakkalai ,  Natrajan Venkataraman

IPC: H04L12/46 ,  H04L12/751 ,  H04L29/08 ,  H04L29/06

Abstract: A first network device may generate a layer-3 virtual private network (L3VPN) route advertisement associated with the first network device. The L3VPN route advertisement may include a first portion, associated with a second network device included in an L3VPN with the first network device, for separate transport-layer tunnel and service-layer tunneling, and a second portion, associated with the second network device, for collapsed transport-layer and service-layer tunneling. The first network device may transmit the L3VPN route advertisement.

公开(公告)号：US09647928B2

公开(公告)日：2017-05-09

申请号：US14619935

申请日：2015-02-11

Applicant: Juniper Networks, Inc.

Inventor： Nischal Sheth ,  Zhaohui Zhang ,  Lili Wang

IPC: H04L12/721 ,  H04L12/751

CPC classification number: H04L45/12 ,  H04L45/02 ,  H04L45/66

Abstract: A network device identifies an Open Shortest Path First (OSPF) link between the network device and a layer 2 network as one of a point-to-multipoint over broadcast interface or a point-to-multipoint over non-broadcast multi access (NBMA) interface, and performs database synchronization and neighbor discovery and maintenance using one of a broadcast model or a NBMA model. The network device also generates a link-state advertisement for the network device, where the link-state advertisement includes a separate link description for each point-to-point link within the layer 2 network; and sends the link-state advertisement to each fully adjacent neighbor in the layer 2 network.

公开(公告)号：US20150092594A1

公开(公告)日：2015-04-02

申请号：US14042644

申请日：2013-09-30

Applicant: Juniper Networks, Inc.

Inventor： Zhaohui Zhang ,  Lili Wang

IPC: H04L12/721

CPC classification number: H04L45/12 ,  H04L45/02 ,  H04W40/246 ,  H04W40/248

Abstract: Techniques are described for utilizing two-part metrics with link state routing protocols of computer networks. For example, link state advertisements communicated by a router convey outbound cost metrics representative of outbound costs for the router to send network traffic to a network, and inbound cost metrics representative of inbound costs to receive network traffic from the network. The techniques may be particularly useful with respect to shared access networks, including broadcast or non-broadcast multi-access networks.

Abstract translation: 描述了利用计算机网络的链路状态路由协议的两部分度量的技术。 例如，由路由器传送的链路状态广告传递表示路由器向网络发送网络流量的出站成本的出站成本度量，以及表示从网络接收网络流量的入站成本的入站成本指标。 对于包括广播或非广播多接入网络的共享接入网络，这些技术可能是特别有用的。

公开(公告)号：US10594592B1

公开(公告)日：2020-03-17

申请号：US15720991

申请日：2017-09-29

Applicant: Juniper Networks, Inc.

Inventor： Lili Wang

IPC: H04L12/715 ,  H04L12/707 ,  H04L12/751 ,  H04L12/733

Abstract: BGP can advertise multiple routes for same prefix via BGP add path (RFC 7911). BGP attempts to pack prefixes with same path attributes into the same BGP update message. Protocol nexthop is one of the path attributes. Since these BGP add paths routes usually have different protocol nexthops, different routes for a single prefix could end up being spread out when being advertised. That may, in turn, result in additional calls to download routes to FIB, advertisement to peers and multiple runs of multipath calculation for the same prefix when multipath is configured. To help avoid this situation, when BGP advertises add-path routes, BGP can send the multiple paths for the same prefix in the adjacent update messages. BGP can use extended Network Layer Reachability Information (NLRI) field to carry nexthop along with its associated prefix in BGP update message to send plain IPv4 unicast routes. In addition, BGP reachability information can be encoded in MP_REACH_NLRI attribute with which protocol nexthop information is carried along with its own prefix in the extended “NLRI” field. A BGP speaker can use some data structure to link these routes for the same prefix and put multiple routes for the same prefix in adjacent or even same BGP update messages.

公开(公告)号：US09106530B1

公开(公告)日：2015-08-11

申请号：US13851852

申请日：2013-03-27

Applicant: Juniper Networks, Inc.

Inventor： Lili Wang

IPC: H04L12/28 ,  H04L12/24

CPC classification number: H04L41/0803 ,  H04L12/4641 ,  H04L41/12 ,  H04L45/02 ,  H04L45/04

Abstract: In general, techniques are described for ensuring the distribution of Virtual Private Network (VPN) routes in a service provider network configured with multiple VPN services. In some examples, a network device receives configuration data that defines a VPN service associated with a route target. The network device, responsive to receiving the configuration data, sends a request for routes that match a type of the VPN service to a routing protocol speaker. The network device receives routes that match the type of the VPN service and are associated with the route target, installs the routes that match the type of the VPN service and are associated with the route target to the routing information base. The network device forwards traffic for the VPN service in accordance with the installed routes.

Abstract translation: 通常，描述了用于确保在配置有多个VPN服务的服务提供商网络中分发虚拟专用网（VPN）路由的技术。 在一些示例中，网络设备接收定义与路由目标相关联的VPN服务的配置数据。 网络设备响应于接收到配置数据，将与VPN业务类型匹配的路由的请求发送到路由协议说话者。 网络设备接收到与VPN业务类型相匹配并与路由目标相关联的路由，安装与VPN业务类型相匹配的路由，并将路由目标与路由信息库相关联。 网络设备根据安装的路由转发VPN服务的流量。

公开(公告)号：US09485141B1

公开(公告)日：2016-11-01

申请号：US14822566

申请日：2015-08-10

Applicant: Juniper Networks, Inc.

Inventor： Lili Wang

IPC: H04L12/28 ,  H04L12/24 ,  H04L12/46

CPC classification number: H04L41/0803 ,  H04L12/4641 ,  H04L41/12 ,  H04L45/02 ,  H04L45/04

Abstract: In general, techniques are described for ensuring the distribution of Virtual Private Network (VPN) routes in a service provider network configured with multiple VPN services. In some examples, a network device receives configuration data that defines a VPN service associated with a route target. The network device, responsive to receiving the configuration data, sends a request for routes that match a type of the VPN service to a routing protocol speaker. The network device receives routes that match the type of the VPN service and are associated with the route target, installs the routes that match the type of the VPN service and are associated with the route target to the routing information base. The network device forwards traffic for the VPN service in accordance with the installed routes.

公开(公告)号：US09444721B2

公开(公告)日：2016-09-13

申请号：US14042644

申请日：2013-09-30

Applicant: Juniper Networks, Inc.

Inventor： Zhaohui Zhang ,  Lili Wang

IPC: H04L12/28 ,  H04L12/721 ,  H04W40/24 ,  H04L12/751

CPC classification number: H04L45/12 ,  H04L45/02 ,  H04W40/246 ,  H04W40/248

Abstract: Techniques are described for utilizing two-part metrics with link state routing protocols of computer networks. For example, link state advertisements communicated by a router convey outbound cost metrics representative of outbound costs for the router to send network traffic to a network, and inbound cost metrics representative of inbound costs to receive network traffic from the network. The techniques may be particularly useful with respect to shared access networks, including broadcast or non-broadcast multi-access networks.

Abstract translation: 描述了利用计算机网络的链路状态路由协议的两部分度量的技术。 例如，由路由器传送的链路状态广告传递表示路由器向网络发送网络流量的出站成本的出站成本度量，以及表示从网络接收网络流量的入站成本的入站成本指标。 对于包括广播或非广播多接入网络的共享接入网络，这些技术可能是特别有用的。