公开(公告)号：US20150381420A1

公开(公告)日：2015-12-31

申请号：US14319003

申请日：2014-06-30

Applicant: Juniper Networks, Inc.

Inventor： Kireeti Kompella

IPC: H04L12/24 ,  H04L12/707 ,  H04L12/721

CPC classification number: H04L41/0816 ,  H04L41/0663 ,  H04L41/0668 ,  H04L41/0836 ,  H04L41/0896 ,  H04L41/12 ,  H04L45/12 ,  H04L45/22 ,  H04L45/507 ,  H04L47/724 ,  H04L47/76 ,  H04L47/825

Abstract: Techniques are described for specifying and constructing multi-protocol label switching (MPLS) rings. Routers may signal membership within MPLS rings and automatically establish ring-based label switch paths (LSPs) as components of the MPLS rings for packet transport within ring networks. In one example, a router includes a processor configured to establish an MPLS ring having a plurality of ring LSPs. Each of the ring LSPs is configured to transport MPLS packets around the ring network to a different one of the routers operating as an egress router for the respective ring LSP. Moreover, each of the ring LSPs comprises a bidirectional, multipoint-to-point (MP2P) LSP for which any of the routers can operate as an ingress to source packet traffic into the ring LSP for transport to the respective egress router for the ring LSP. Separate protection paths, bypass LSPs, detours or loop-free alternatives need not be signaled.

Abstract translation: 描述了用于指定和构造多协议标签交换（MPLS）环的技术。 路由器可以在MPLS环内通知成员关系，并自动建立环形标签交换路径（LSP），作为环形网络中的分组传输的MPLS环路的组成部分。 在一个示例中，路由器包括被配置为建立具有多个环形LSP的MPLS环的处理器。 每个环形LSP被配置为将环形网络周围的MPLS分组传送到作为相应环形LSP的出口路由器操作的不同路由器。 此外，每个环形LSP包括双向多点到多点（MP2P）LSP，其中任何一个路由器都可以作为入口将数据包流量引入到环形LSP中，以传输到环形LSP的相应出口路由器 。 单独的保护路径，旁路LSP，绕道或无环路替代方案不需要用信号通知。

公开(公告)号：US09042271B2

公开(公告)日：2015-05-26

申请号：US13948015

申请日：2013-07-22

Applicant: Juniper Networks, Inc.

Inventor： Kireeti Kompella

IPC: H04L12/24 ,  H04L12/751 ,  H04L12/723 ,  H04L12/701

CPC classification number: H04L41/084 ,  H04L45/00 ,  H04L45/10 ,  H04L45/50

Abstract: A layer 2 transport network, and components thereof, supporting virtual network functionality among customer edge devices. Virtual private network configuration can be accomplished with merely local intervention by preprovisioning extra channel (or circuit) identifiers at each customer edge device and by advertising label base and range information corresponding to a list of channel (or circuit) identifiers.

公开(公告)号：US08958425B2

公开(公告)日：2015-02-17

申请号：US14187481

申请日：2014-02-24

Applicant: Juniper Networks, Inc.

Inventor： Kireeti Kompella

IPC: H04L12/28 ,  H04L12/751 ,  H04L12/46 ,  H04L12/721 ,  H04L12/741

CPC classification number: H04L45/02 ,  H04L12/4633 ,  H04L45/08 ,  H04L45/66 ,  H04L45/74

Abstract: A transport LAN segment service is provided over a transport network. Responsibilities for configuring, provisioning and forwarding over a transport LAN segment are divided between layer 2 and 3 service provider edge devices, where the layer 3 edge device handles discovery and tunneling responsibilities, the layer 2 edge device handles learning and flooding responsibilities, and information can be exchanged between the layer 2 and 3 edge devices. Configuration is simplified by advertising TLS-label information, layer 2 address learning, and flooding when the needed configuration information has not yet been learned or discovered.

公开(公告)号：US08953626B2

公开(公告)日：2015-02-10

申请号：US14021928

申请日：2013-09-09

Applicant: Juniper Networks, Inc.

Inventor： Kireeti Kompella

IPC: H04L12/56 ,  H04L12/751 ,  H04L12/715 ,  H04L12/753

CPC classification number: H04L45/20 ,  H04L12/44 ,  H04L12/56 ,  H04L45/02 ,  H04L45/46 ,  H04L45/48 ,  H04L45/60

Abstract: A router maintains routing information including (i) route data representing destinations within a computer network, (ii) next hop data representing interfaces to neighboring network devices, and (iii) indirect next hop data that maps a subset of the routes represented by the route data to a common one of the next hop data elements. In this manner, routing information is structured such that routes having the same next hop use indirect next hop data structures to reference common next hop data. In particular, in response to a change in network topology, the router need not change all of the affected routes, but only the common next hop data referenced by the intermediate data structures. This provides for increased efficiency in updating routing information after a change in network topology, such as link failure.

Abstract translation: 路由器维护路由信息，包括（i）表示计算机网络内的目的地的路由数据，（ii）表示到相邻网络设备的接口的下一跳数据，以及（iii）映射路由表示的路由的子集的间接下一跳数据 数据到下一跳数据元素中的共同的一个。 以这种方式，路由信息的结构使得具有相同下一跳的路由使用间接下一跳数据结构来引用公共下一跳数据。 特别地，为了响应网络拓扑的变化，路由器不需要改变所有受影响的路由，而只能改变由中间数据结构引用的公共下一跳数据。 这提高了在网络拓扑变化（如链路故障）后更新路由信息的效率。

公开(公告)号：US08711855B1

公开(公告)日：2014-04-29

申请号：US13842796

申请日：2013-03-15

Applicant: Juniper Networks, Inc.

Inventor： James M. Murphy ,  Abhijit K. Choudhury ,  Pradeep Sindhu ,  Ina Minei ,  Jayabharat Boddu ,  David M. Katz ,  Kireeti Kompella

IPC: H04L12/28

CPC classification number: H04L47/12 ,  H04L12/28 ,  H04L41/0654 ,  H04L41/12 ,  H04L43/10 ,  H04L45/42 ,  H04L45/50

Abstract: An access network is described in which a centralized controller provides seamless end-to-end service from a core-facing edge of a service provider network through aggregation and access infrastructure out to access nodes located proximate to the subscriber devices. The controller operates to provide a central configuration point for configuring aggregation nodes (AGs) of a network of the service provider so as to provide transport services to transport traffic between access nodes (AXs) and edge routers on opposite borders of the network.

Abstract translation: 描述了一种接入网络，其中集中式控制器通过聚合和接入基础设施从位于接近用户设备的接入节点提供从服务提供商网络的面向核心边缘的无缝端到端服务。 控制器操作以提供用于配置服务提供商的网络的聚合节点（AG）的中央配置点，以便提供传输服务以在网络的相对边界上的接入节点（AX）和边缘路由器之间传输业务。

公开(公告)号：US12244493B2

公开(公告)日：2025-03-04

申请号：US18531947

申请日：2023-12-07

Applicant: Juniper Networks, Inc.

Inventor： Tarek Saad ,  Manish Talwar ,  Raveendra Torvi ,  Ajay Kachrani ,  Kireeti Kompella

IPC: H04L45/50 ,  H04L9/40 ,  H04L45/00 ,  H04L69/22

Abstract: In some implementations, an egress network device of a multiprotocol label switching (MPLS) network may exchange Internet key exchange (IKE) messages with an ingress network device of the MPLS network to establish a security association between the egress network device and the ingress network device. The egress network device may receive an MPLS packet that includes an MPLS header, a secure MPLS data header, and an MPLS payload. The egress network device may process the MPLS header to determine a label associated with a label-switched path (LSP) and a secure function indicator. The egress network device may decrypt, using a secure function identified based on the secure MPLS data header, the MPLS payload to generate a decrypted packet. The egress network device may transmit the decrypted packet towards a destination device.

公开(公告)号：US20250007834A1

公开(公告)日：2025-01-02

申请号：US18372088

申请日：2023-09-23

Applicant: Juniper Networks, Inc.

Inventor： Wen Lin ,  Kevin Wang ,  Kireeti Kompella

IPC: H04L45/745 ,  H04L45/02 ,  H04L45/586

Abstract: Different services through Virtual Routing and Forwarding instances (VRFs) are identified without needing a Multiprotocol Label Switching (MPLS) label or a Virtual Extensible Local Area Network (VXLAN) Network Identifier (VNI) by using, for example, different UDP port numbers to identify different connectivity services (e.g., customers, VRFs) when IP-in-IP (also referred to as IP over UDP) is used as a tunneling mechanism (e.g., in the data center).

公开(公告)号：US11757719B2

公开(公告)日：2023-09-12

申请号：US17459231

申请日：2021-08-27

Applicant: Juniper Networks, Inc.

Inventor： Gregory A. Sidebottom ,  Kireeti Kompella ,  Sherine El-Medani ,  Wing Eng

IPC: H04L41/0896 ,  H04L41/14 ,  H04L41/5006 ,  H04L41/5054 ,  H04L41/5061

CPC classification number: H04L41/0896 ,  H04L41/145 ,  H04L41/5006 ,  H04L41/5054 ,  H04L41/5064

Abstract: An example computing device is configured to receive an instance of a customer service model representative of a plurality of customer services. Each of the plurality of customer services associated with a corresponding at least one requirement and a corresponding at least one constraint. The computing device is configured to receive an instance of a resource model representative of a plurality of resources and map the instance of the customer service model and the instance of the resource model to an internal placement model. The computing device is configured to allocate the plurality of resources to the plurality of customer services such that the at least one requirement and the at least one constraint for each of the plurality of customer services are satisfied and inverse map data indicating how the plurality of resources are allocated to a format consumable by the customer device and output the inverse mapped data.

公开(公告)号：US11750507B1

公开(公告)日：2023-09-05

申请号：US17515833

申请日：2021-11-01

Applicant: Juniper Networks, Inc.

Inventor： Kireeti Kompella ,  Ronald P. Bonica

IPC: H04L45/00 ,  H04L45/74 ,  H04L41/0806 ,  H04L45/50 ,  H04L61/5014

CPC classification number: H04L45/34 ,  H04L41/0806 ,  H04L45/507 ,  H04L45/74 ,  H04L61/5014

Abstract: This disclosure describes techniques relating to assigning unique segment identifiers (SIDs) in a segment routing network. In one example, this disclosure describes a method that includes receiving, by a computing system and from a node on a network, a request to allocate a segment identifier for use in a segment routing network; allocating, by the computing system and from a block of addresses, an assigned segment identifier; responding to the request by outputting, by the computing system and over the network to the node, information about the assigned segment identifier; and maintaining the assigned segment identifier.

公开(公告)号：US20210392014A1

公开(公告)日：2021-12-16

申请号：US17458039

申请日：2021-08-26

Applicant: Juniper Networks, Inc.

Inventor： Raveendra Torvi ,  Abhishek Deshmukh ,  Kireeti Kompella ,  Tarek Saad ,  Vishnu Pavan Beeram ,  Ronald Bonica

IPC: H04L12/437 ,  H04L12/24 ,  H04L12/723

Abstract: A ring node N belonging to a resilient MPLS ring (RMR) provisions and/or configures clockwise (CW) and anti-clockwise (AC) paths on the RMR by: (a) configuring two ring node segment identifiers (Ring-SIDs) on the ring node, wherein a first of the two Ring-SIDs (CW-Ring-SID) is to reach N in a clockwise direction on the ring and a second of the two Ring-SIDs (AC-Ring-SID) is to reach N in an anti-clockwise direction on the ring, and wherein the CW-Ring-SID and AC-Ring-SID are unique within a source packet routing in networking (SPRING) domain including the ring; (b) generating a message including the ring node's CW-Ring-SID and AC-Ring-SID; and (c) advertising the message, via an interior gateway protocol, for receipt by other ring nodes belonging to the ring such that (1) a clockwise multipoint-to-point path (CWP) is defined such that every other one of the ring nodes belonging to the ring can be an ingress for the CWP and such that only the node is an egress for the CWP, and (2) an anti-clockwise multipoint-to-point path (ACP) is defined such that every other one of the ring nodes belonging to the ring can be an ingress for the ACP and such that only the node is an egress for the ACP.