公开(公告)号：US20240364561A1

公开(公告)日：2024-10-31

申请号：US18641898

申请日：2024-04-22

Applicant: Cisco Technology, Inc.

Inventor： Neeraj Malhotra ,  Balaji Pitta Venkatachalapathy ,  Krishnaswamy Muddenahally Ananthamurthy ,  Ali Sajassi ,  Dhananjaya Kasargod Rao

IPC: H04L12/46 ,  H04L45/00 ,  H04L45/02 ,  H04L45/50 ,  H04L45/741 ,  H04L101/622

CPC classification number: H04L12/4641 ,  H04L45/02 ,  H04L45/50 ,  H04L45/66 ,  H04L45/741 ,  H04L2101/622

Abstract: In one embodiment, a method includes receiving, by a route reflector, a subscription request from a first provider edge node in a network and generating a subscription policy for the first provider edge node. The method also includes receiving a first Ethernet Virtual Private Network (EVPN) Type 2 Route from a second provider edge node, assigning a sequence number to the first EVPN Type 2 Route, and communicating the first EVPN Type 2 Route with the sequence number to the first provider edge node. The method further includes receiving a second EVPN Type 2 Route from a third provider edge node, generating an updated sequence number in response to receiving the second EVPN Type 2 Route from the third provider edge node, and communicating the second EVPN Type 2 Route with the updated sequence number to the first provider edge node and the second provider node.

公开(公告)号：US12132639B2

公开(公告)日：2024-10-29

申请号：US17479129

申请日：2021-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mahendra Singh Negi ,  Sreekanth Sreenivasan ,  Mobashshera Rasool

IPC: H04L45/02 ,  H04L45/12 ,  H04L45/121 ,  H04L45/50

CPC classification number: H04L45/04 ,  H04L45/123 ,  H04L45/121 ,  H04L45/50

Abstract: A method of optimal routing in an inter-area IGP network based on SR-MPLS Flex-Algorithm procedures, a source node, an area border node and a system thereof are disclosed. The method comprises advertising, by each of the at least two area border nodes of the IGP network comprising a first area and second area, an algorithm-specific metric associated with a destination node from the first set of nodes of the first area to a source node from the second set of nodes of the second area; calculating, by the source node, each inter-area path metric associated with a path including a respective area border node to reach the destination node; and determining, by the source node, an optimal path including one of the at least two area border nodes to reach the destination node based on each of the each calculated inter-area path metric.

公开(公告)号：US20240348553A1

公开(公告)日：2024-10-17

申请号：US18298552

申请日：2023-04-11

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Nitin Kumar ,  Ali Sajassi ,  Swadesh Agrawal

IPC: H04L47/32 ,  H04L12/18 ,  H04L45/00 ,  H04L45/02 ,  H04L45/50

CPC classification number: H04L47/32 ,  H04L12/185 ,  H04L12/1863 ,  H04L45/026 ,  H04L45/34 ,  H04L45/50

Abstract: A system and associated methods provide solutions for reducing a volume of traffic through a multicast network attributed to repeated maintenance messages, which are required in order to maintain a multicast connection. The system configures provider edge devices to generate and send maintenance messages on behalf of members of a multicast group to establish and maintain the multicast connection and provides options for determining unknown locations of sources and/or subscribers, thereby reducing the overall volume of traffic transmitted over the multicast network.

公开(公告)号：US20240305563A1

公开(公告)日：2024-09-12

申请号：US18477340

申请日：2023-09-28

Applicant: Juniper Networks, Inc.

Inventor： Vishnu Pavan BEERAM ,  Chandrasekar RAMACHANDRAN

IPC: H04L45/50 ,  H04L45/00 ,  H04L45/02

CPC classification number: H04L45/50 ,  H04L45/02 ,  H04L45/32

Abstract: In some implementations, a head Level 2 (L2) node of an intermediate system-intermediate system (IS-IS) flood reflection (FR) network may determine an end-to-end path from the head L2 node to a tail L2 node of the IS-IS FR network. The IS-IS FR network includes a plurality of L2 nodes and a plurality of FR clusters that each comprise a plurality of Level 1 (L1) nodes and a plurality of L1 and L2 (L1/L2) nodes connected by a plurality of L1 links. The head L2 node may send information associated with the end-to-end path to another node identified in the end-to-end path to cause a label switched path (LSP) to be established from the head L2 node to the tail L2 node, wherein the LSP traverses one or more L1 links within an FR cluster of the IS-IS FR network.

公开(公告)号：US20240305501A1

公开(公告)日：2024-09-12

申请号：US18273828

申请日：2022-04-28

Applicant: ZTE Corporation

Inventor： Zheng ZHANG ,  Benchong XU

IPC: H04L12/46 ,  H04L45/50

CPC classification number: H04L12/4633 ,  H04L45/50

Abstract: Embodiments of the present disclosure provide a data forwarding method and apparatus, a storage medium, and an electronic device. The method includes: acquiring, by an ingress node of a Bit Indexed Explicit Replication (BIER) domain, traffic data to be forwarded of an instance; encapsulating, by the ingress node, the traffic data by using a prefix of an address of the BIER domain and an instance label of the instance; and forwarding, by the ingress node, an encapsulated packet obtained by encapsulating the traffic data to a next-hop node of the BIER domain. By the solution, the problem of low data forwarding efficiency is solved, thereby achieving the effect of improving data forwarding efficiency.

公开(公告)号：US12047271B2

公开(公告)日：2024-07-23

申请号：US17704969

申请日：2022-03-25

Applicant: INFOSYS LIMITED

Inventor： Gaurav Saxena ,  Kishore Babu Thota ,  Amol Nilkantheshwar Joshi

IPC: H04L45/02 ,  H04L12/46 ,  H04L45/50

CPC classification number: H04L45/02 ,  H04L12/4633 ,  H04L45/50

Abstract: Embodiments of the present disclosure discloses a method and an interoperability system. The present disclosure aims to provide interoperability between SD-WANs of different vendors. The interoperability system uses information from an agent (software or hardware) installed in network terminals such as routers of each SD-WAN to configure control and management plane signals and configures the agent associated with one SD-WAN to share data with agent associated with another SD-WAN. Therefore, the present disclosure helps in interoperability between SD-WANs from different vendors. Hence, operations are efficient, and cost is reduced.

公开(公告)号：US12040965B2

公开(公告)日：2024-07-16

申请号：US16781376

申请日：2020-02-04

Applicant: Nokia Solutions and Networks Oy

Inventor： Pranjal Kumar Dutta

IPC: H04L45/16 ,  H04L9/40 ,  H04L12/08 ,  H04L12/46 ,  H04L45/50 ,  H04L45/745

CPC classification number: H04L45/16 ,  H04L12/08 ,  H04L12/4641 ,  H04L45/50 ,  H04L45/745 ,  H04L63/0272

Abstract: Various example embodiments for supporting multicast communications in a communication system are presented. Various embodiments for supporting multicast communications may be configured to support multicast communications of multiple virtual private networks over a single multicast distribution tree. Various embodiments for supporting multicast communications of multiple virtual private networks over a single multicast distribution tree may support communication of a packet of a virtual private network within a network, wherein the packet includes a set of tuples associated with a set of egress devices to which the packet is to be delivered via a multicast distribution tree supported within the network, wherein, for each of the egress devices, the respective tuple associated with the respective egress device includes a respective device identifier of the egress device that uniquely identifies the respective egress device within the network and a respective label assigned by the respective egress device for the virtual private network.

公开(公告)号：US20240235986A1

公开(公告)日：2024-07-11

申请号：US18614303

申请日：2024-03-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianhong Qin ,  Liang Cheng

IPC: H04L45/18 ,  H04L45/00 ,  H04L45/50 ,  H04L45/741

CPC classification number: H04L45/18 ,  H04L45/22 ,  H04L45/34 ,  H04L45/50 ,  H04L45/741

Abstract: A loop detection method and apparatus are provided. The method includes: A first node receives a packet from a second node through a first interface. A node segment identifier is encapsulated at an outer layer of the packet. The node segment identifier identifies a destination node. The first node determines, based on the node segment identifier, that an outbound interface for forwarding the packet is the first interface. The first node determines that a loop exists in a forwarding path of the packet. Whether the loop exists in the forwarding path of the packet is determined by determining whether an interface through which the first node receives the packet is consistent with an outbound interface through which the first node forwards the packet, to further adjust the forwarding path of the packet when the loop exists in the forwarding path of the packet, for example, forward the packet along a backup path or discard the packet, to avoid problems such as port congestion and service packet loss.

公开(公告)号：US12028238B2

公开(公告)日：2024-07-02

申请号：US17538374

申请日：2021-11-30

Applicant: Level 3 Communications, LLC

Inventor： Logan Rawlins

IPC: H04L45/02 ,  H04L12/46 ,  H04L45/00 ,  H04L45/021 ,  H04L45/28 ,  H04L45/44 ,  H04L45/50 ,  H04L45/745 ,  H04L69/329

CPC classification number: H04L45/04 ,  H04L12/4641 ,  H04L45/02 ,  H04L45/021 ,  H04L45/22 ,  H04L45/28 ,  H04L45/44 ,  H04L45/50 ,  H04L45/745 ,  H04L69/329

Abstract: A traffic controller device for distributing or otherwise controlling the distribution of routing information may be included in a telecommunications network. The traffic controller may receive routing tables from a plurality of network devices, such as one or more provider edge devices of the network. The traffic controller, upon receiving the routing information from the provider edge devices, may generate a routing table associated with each device providing the routing information. The traffic controller may also provide updates to one or more of the networking devices associated with the controller. The traffic controller may alter or update, at the traffic controller, the routing table associated with the target provider edge device based on the network policy. The routing information in the routing table for that device and maintained by the traffic controller may be updated with a new route or new local preferred parameter value.

公开(公告)号：US20240214297A1

公开(公告)日：2024-06-27

申请号：US18088913

申请日：2022-12-27

Applicant: Nokia Solutions and Networks Oy

Inventor： Pranjal Kumar Dutta

IPC: H04L45/03 ,  H04L45/12 ,  H04L45/50 ,  H04L45/74

CPC classification number: H04L45/03 ,  H04L45/12 ,  H04L45/50 ,  H04L45/74

Abstract: Various example embodiments for supporting autonomous path construction and routing in a communication network are presented. Various example embodiments for supporting autonomous path construction and routing in a communication network may be configured to support autonomous path construction based on flooding of path state advertisements within the communication network. Various example embodiments for supporting autonomous path construction and routing in a communication network may be configured to support autonomous path construction based on flooding of path state advertisements including information supporting construction of full sets of loop-free unequal cost paths between all pairs of network elements in the communication network. Various example embodiments for supporting autonomous path construction and routing in a communication network may be configured to support routing based on autonomously constructed paths that include loop-free unequal cost paths between pairs of network elements in the communication network.