公开(公告)号：US11799770B1

公开(公告)日：2023-10-24

申请号：US17961825

申请日：2022-10-07

Applicant: Level 3 Communications, LLC

Inventor： David Sutton ,  Steve Toms ,  Shelley Goldner ,  Shelli L. Hurd

IPC: G06F15/173 ,  H04L45/42 ,  H04L9/40 ,  H04L45/02

CPC classification number: H04L45/42 ,  H04L45/02 ,  H04L63/0236

Abstract: Novel tools and techniques are provided for implementing name-based routing through networks. In various embodiments, a broker manager in each of a plurality of networks may receive a subscription request for a network device from a client device, each device being locally accessible or disposed in an upstream or downstream network. The broker manager uses its client broker to communicate with a locally accessible client device, and uses its mediator broker (and, sometimes, an intermediate device(s)) to communicate with a locally accessible network device. The broker manager otherwise uses its messaging brokers to communicate with control channels of one or more networks. Once subscription with the network device has been established, any commands and responses between the client device and the network device may be routed over pub/sub channels via the broker managers and their brokers using name-based routing, without routing based on IP address of the network device.

公开(公告)号：US11799762B2

公开(公告)日：2023-10-24

申请号：US18061581

申请日：2022-12-05

Applicant: Juniper Networks, Inc.

Inventor： Abilash Menon ,  Anna Yungelson ,  Scott A. McCulley ,  Jacob Dionne

IPC: G06F15/173 ,  H04L45/24 ,  H04L45/00 ,  H04L67/146 ,  H04L12/46 ,  H04L45/42 ,  H04L45/745 ,  H04L45/16 ,  H04L61/103 ,  H04L101/622

CPC classification number: H04L45/24 ,  H04L12/4641 ,  H04L45/16 ,  H04L45/42 ,  H04L45/66 ,  H04L45/745 ,  H04L61/103 ,  H04L67/146 ,  H04L2101/622

Abstract: Techniques are disclosed for session-based routing within Open Systems Interconnection (OSI) Model Layer-2 (L2) networks extended over Layer-3 (L3) networks. In one example, L2 networks connect a first client device to a first router and a second client device to a second router. An L3 network connects the first and second routers. The first router receives, from the first client device, an L2 frame destined for the second client device. The first router generates an L3 packet comprising an L3 header specifying L3 addresses of the first and second routers, a first portion of metadata comprising L2 addresses for the first and second client devices, and a second portion of metadata comprising L3 addresses for the first and second client devices, and forwards the L3 packet to the second router. The second router recovers the L2 frame from the metadata and forwards the L2 frame to the second client device.

公开(公告)号：US20230336471A1

公开(公告)日：2023-10-19

申请号：US18336058

申请日：2023-06-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dhruv Dhody

IPC: H04L45/42 ,  H04L45/741 ,  H04L43/062

CPC classification number: H04L45/42 ,  H04L45/741 ,  H04L43/062

Abstract: The present disclosure provides a mechanism to support the creation of an SR policy using PCEP extensions. In one implementation, a PCE is in communication with a PCC using PCEP mechanisms. The PCE sends a first PCEP initiate message, PCInitiate, to the PCC, where the first PCEP message carries the central controller instruction with CC-ID for creating an SR policy. The PCC receives the first PCEP initiate message from the PCE, creates the SR policy using the SR policy parameters where the SR policy is a container independent of any candidate path. Further, the PCC sends a first PCEP report message, PCRpt, to the PCE to report the acknowledgement of the CC-ID and the newly created SR policy.

公开(公告)号：US11792120B2

公开(公告)日：2023-10-17

申请号：US17575508

申请日：2022-01-13

Applicant: HashiCorp

Inventor： Mitchell Hashimoto ,  Evan Phoenix

IPC: H04L45/42 ,  H04L9/40 ,  H04L45/00 ,  H04L45/24

CPC classification number: H04L45/42 ,  H04L45/24 ,  H04L45/38 ,  H04L63/166

Abstract: A discovery and routing service may generate a URL related to an application to be deployed to a cloud computing platforms, the URL providing access to an edge list containing one or more edge nodes. The discovery and routing service may connect at least one agent to the URL. The discovery and routing service may send authentication information to the agent, including an identifier related to the agent, and a set of agent labels. The discovery and routing service may insert, after authentication by the edge node, the authentication information into a routing mesh. The discovery and routing service may locate the agent, in response to a request, based on a comparison between the set of request labels and a set of agent labels. The discovery and routing service may connect the located agent with traffic to and from the routing mesh.

公开(公告)号：US20230327981A1

公开(公告)日：2023-10-12

申请号：US17719138

申请日：2022-04-12

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Venkatachalam Swaminathan ,  Venkatavaradhan Devarajan

IPC: H04L45/24 ,  H04L45/42 ,  H04L45/00 ,  H04L45/12

CPC classification number: H04L45/245 ,  H04L45/42 ,  H04L45/22 ,  H04L45/123

Abstract: A system for facilitating traffic redirection for a multi-chassis link aggregation group (MCLAG) is provided. During operation, the system can participate in an MCLAG using a first interface of a first switch. The MCLAG can also include a second interface of a second switch. Based on predetermined unavailability for the first switch, the system can determine a sequence of applications for a plurality of traffic forwarding configurations. A respective configuration can facilitate loop prevention for traffic forwarded via the MCLAG. The system can then apply the plurality of configurations to the first switch based on the sequence of applications to redirect unicast traffic from the first switch to the second switch. Here, applying a respective configuration can include programming corresponding switch hardware with the configuration. Subsequently, the system can perform a set of operations on the first switch that triggers the predetermined unavailability.

公开(公告)号：US11784917B2

公开(公告)日：2023-10-10

申请号：US17932492

申请日：2022-09-15

Applicant: Juniper Networks, Inc.

Inventor： Abilash Menon ,  Anna Yungelson ,  Scott A. McCulley ,  Jacob Dionne

IPC: G06F15/16 ,  H04L45/24 ,  H04L45/00 ,  H04L67/146 ,  H04L12/46 ,  H04L45/42 ,  H04L45/745 ,  H04L45/16 ,  H04L61/103 ,  H04L101/622

CPC classification number: H04L45/24 ,  H04L12/4641 ,  H04L45/16 ,  H04L45/42 ,  H04L45/66 ,  H04L45/745 ,  H04L61/103 ,  H04L67/146 ,  H04L2101/622

Abstract: Techniques are disclosed for session-based routing within Open Systems Interconnection (OSI) Model Layer-2 (L2) networks extended over Layer-3 (L3) networks. In one example, L2 networks connect a first client device to a first router and a second client device to a second router. An L3 network connects the first and second routers. The first router receives, from the first client device, an non-session-based L2 frame destined for the second client device. The first router forms an L3 packet comprising an L3 header specifying L3 addresses of the first and second routers and a protocol selected based on an L3 service for the L2 frame, a payload comprising the L2 frame, and metadata comprising a session identifier distinctly identifying the L2 frame, and forwards the L3 packet to the second router. The second router recovers the L2 frame from the payload and forwards the L2 frame to the second client device.

公开(公告)号：US20230308421A1

公开(公告)日：2023-09-28

申请号：US18197090

申请日：2023-05-14

Applicant: Nicira, Inc.

Inventor： Ajit Ramachandra Mayya ,  Parag Pritam Thakore ,  Stephen Craig Connors ,  Steven Michael Woo ,  Sunil Mukudan ,  Thomas Harold Speeter

IPC: H04L9/40 ,  H04L12/66 ,  H04L12/46 ,  H04L45/42 ,  H04L49/35

CPC classification number: H04L63/0272 ,  H04L12/66 ,  H04L12/4633 ,  H04L12/4641 ,  H04L63/029 ,  H04L45/42 ,  H04L49/35 ,  H04L63/0281 ,  H04L67/10

Abstract: In one aspect, a computerized system useful for implementing a virtual private network (VPN) including an edge device that automatically establishes an Internet Protocol Security (IPsec) tunnel alongside an unsecure Multipath Protocol (MP) tunnel with a gateway device in preparation for a transmission of a secure traffic communication. The edge device has a list of local subnets. The edge device sends the list of local subnets to the gateway during an initial MP tunnel establishment handshake message exchange between the edge device and the gateway device. Each subnet includes an indication of whether the subnet is reachable over the VPN. A gateway device that automatically establishes the IPsec tunnel alongside the unsecure MP tunnel with the edge device. An enterprise datacenter server that comprises an orchestrator module that receives a toggle the VPN command and enables the VPN on the orchestrator. The orchestrator informs the edge device the list of subnets is accessible over the VPN causing the edge device to update the gateway device with a new list of subnets of the edge device that accessible over the VPN.

公开(公告)号：US20230308390A1

公开(公告)日：2023-09-28

申请号：US17704103

申请日：2022-03-25

Applicant: Arista Networks, Inc.

Inventor： Maxime Daniel Lorrillere ,  Suhas Raghunath Joshi

IPC: H04L45/00 ,  H04L45/42 ,  H04L47/762 ,  H04L47/78

CPC classification number: H04L45/66 ,  H04L45/42 ,  H04L47/762 ,  H04L47/781

Abstract: A method of allocating programmable memory in a network device includes receiving a set of desired features for the network device, and determining a plurality of constraints associated with the set of desired features. The plurality of constraints are converted into a plurality of Boolean representations of the constraints, and a feasibility is evaluated for the desired features based on the plurality of constraints.

公开(公告)号：US11765082B2

公开(公告)日：2023-09-19

申请号：US16047496

申请日：2018-07-27

Applicant: International Business Machines Corporation

Inventor： Thai Franck Le ,  Erich M. Nahum ,  Vasileios Pappas ,  Dinesh Verma

IPC: H04L45/00 ,  H04L45/42 ,  H04L45/74 ,  H04L69/163 ,  H04L69/22 ,  H04L45/24 ,  H04L49/25

CPC classification number: H04L45/70 ,  H04L45/42 ,  H04L45/742 ,  H04L69/163 ,  H04L69/22 ,  H04L45/24 ,  H04L49/252

Abstract: Systems and computer program products for performing retransmission of data packets over a network. A node receives a data packet with a source and a destination address. The data packet is sent along a network path to the destination address, and information associated with the data packet is sent to a controller node that is independent of the network path. A controller receives information associated with a data packet from any forwarder node within a plurality of forwarder nodes each monitoring communications along separate communications paths. An indication of a receipt acknowledgement for the data packet is received from a second forwarder node that is separate from the first forwarder node and the controller node. The receipt acknowledgement is correlated with the data packet and based on the correlating, data associated with retransmission processing of the data packet is deleted.

公开(公告)号：US20230291689A1

公开(公告)日：2023-09-14

申请号：US18013617

申请日：2020-07-15

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Tarik Hammam ,  Anders Franzen ,  János Kövér

IPC: H04L45/7453 ,  H04L45/42

CPC classification number: H04L45/7453 ,  H04L45/42

Abstract: According to embodiments herein e.g. a method performed by a network node unit for managing packet handling in a communications network is provided. The network node unit reads through routing entries in a routing information base. The network node unit performs for one or more routing entries, a hash process on a network address of the routing entry into a hashed network address associated with an identity of a forwarding unit. The network node unit sends information relating to the routing entry to the forwarding unit with the identity thereby partitioning the routing entries to different forwarding units e.g. targeted by a correlated traffic distribution mechanism.