公开(公告)号：US20240073122A1

公开(公告)日：2024-02-29

申请号：US17900340

申请日：2022-08-31

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Mishra ,  Nitin Kumar ,  Sridhar Santhanam

IPC: H04L45/16 ,  H04L43/026 ,  H04L43/04

CPC classification number: H04L45/16 ,  H04L43/026 ,  H04L43/04

Abstract: A method is performed at a router on a multicast configured to forward a multicast flow. The method comprises: in response to receiving, from a controller connected to the multicast path or the multicast path, an enable command to enable statistics tracing for the multicast flow, determining whether the router has sufficient resources to perform statistics tracing; and when the router has the sufficient resources: responsive to the enable command, enabling statistics tracing to collect statistics for the multicast flow; generating a first request to include the enable command and the statistics; and forwarding the first request towards the controller.

公开(公告)号：US20240056379A1

公开(公告)日：2024-02-15

申请号：US17884259

申请日：2022-08-09

Applicant: Cisco Technology, Inc.

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

IPC: H04L45/02 ,  H04L45/00 ,  H04L45/28

CPC classification number: H04L45/02 ,  H04L45/22 ,  H04L45/28

Abstract: A system and method for handling multicast traffic in Ethernet Virtual Private Network multi-homed networks includes receiving a first route table for a first route, determining that the first route table is associated with another peer device in the multi-home network, generating a second route table for a second route, determining a route to transmit data and the determined route is the first route or the second route based on the first preference value and the second preference value, and transmitting the data using the determined route.

公开(公告)号：US11431619B2

公开(公告)日：2022-08-30

申请号：US17160102

申请日：2021-01-27

Applicant: Cisco Technology, Inc.

Inventor： Neeraj Malhotra ,  Satya Ranjan Mohanty ,  Dongling Duan ,  Nitin Kumar ,  Narasimha Prasad Salagame Nagaraj

IPC: H04L45/24 ,  H04L45/74 ,  H04L47/17

Abstract: Techniques and mechanisms for a control plane approach for dense topologies that focusses on discovering shared ECMP groups in the control plane independent of per-prefix learning and then learning prefixes via these shared ECMP groups instead of learning prefixes via one next-hop at a time. In dense topologies, this approach helps minimize BGP path scale, corresponding signaling and enables control plane scaling that is an order of magnitude higher than a traditional eBGP control plane. During link and node topology changes, the described control plane approach enables control plane signaling that is prefix independent and an order of magnitude lower. A control plane approach to path-list sharing and prefix independent signaling on link and node topology changes enables prefix independent convergence (PIC) in scenarios that would not be possible otherwise with traditional FIB driven path-list sharing and PIC.

公开(公告)号：US11349891B1

公开(公告)日：2022-05-31

申请号：US17220153

申请日：2021-04-01

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Rajiv Asati ,  Nitin Kumar ,  Luc De Ghein

IPC: H04L65/611 ,  H04L65/60

Abstract: This disclosure describes techniques for configuring an edge router of a communication provider network, the edge router coupled to communicate with a plurality of media streaming playback devices. Based at least in part on an indication of characteristics associated with the plurality of media streaming playback devices, a first multicast join for the edge router is configured to the communication provider network such that one or more media servers delivers a first plurality of media streams to the edge router via the communication provider network. Based at least in part on an indication of a request for an additional media stream not included in the first plurality of media streams, a second multicast join for the edge router is configured to the communication provider network such that the one or more media servers delivers the additional media stream to the edge router via the communication provider network.

公开(公告)号：US20240259288A1

公开(公告)日：2024-08-01

申请号：US18102460

申请日：2023-01-27

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Mishra ,  Praveen Bhagwatula ,  Nitin Kumar ,  Krishnaswamy Ananthamurthy

IPC: H04L43/12 ,  H04L12/18 ,  H04L43/06

CPC classification number: H04L43/12 ,  H04L12/18 ,  H04L43/06

Abstract: In-band network telemetry for multicast is provided by injecting a synthetic telemetry packet into the multicast. Each first node of each branch replicates the synthetic packet and passes on copy to the next branch and sends one copy down the nodes in the branch sequentially. The synthetic telemetry packet can include flags with have values, including, for example, whether each node should hold or send data collected by the node according to the synthetic data packet, how long a node is to hold collected telemetry data, and what data to collect. The node sends a postcard to the originator with the telemetry data according to the instructions in the synthetic telemetry packet.

公开(公告)号：US11949597B2

公开(公告)日：2024-04-02

申请号：US17543278

申请日：2021-12-06

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Anuj Budhiraja ,  Nitin Kumar ,  Sridhar Santhanam

IPC: H04L47/10 ,  H04L12/18 ,  H04L43/0829

CPC classification number: H04L47/15 ,  H04L12/18 ,  H04L43/0829

Abstract: In an example method, an instruction to begin monitoring incoming traffic of a multicast data flow is received by a router. The instruction is received from a downstream router. The example method further includes monitoring incoming traffic of the multicast data flow. At least partly in response to determining that an expected amount of the incoming traffic of the multicast data flow is being received at the router, reporting to a network administrator device, a location of the router in the multicast data flow. Further, at least partly in response to determining that an expected amount of the incoming traffic of the multicast a data flow is not being received, sending, by the router and to an upstream router, an instruction to begin monitoring incoming traffic of the multicast data flow.

公开(公告)号：US20230179527A1

公开(公告)日：2023-06-08

申请号：US17543278

申请日：2021-12-06

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Anuj Budhiraja ,  Nitin Kumar ,  Sridhar Santhanam

IPC: H04L47/10 ,  H04L12/18 ,  H04L43/0829

CPC classification number: H04L47/15 ,  H04L12/18 ,  H04L43/0829

Abstract: In an example method, an instruction to begin monitoring incoming traffic of a multicast data flow is received by a router. The instruction is received from a downstream router. The example method further includes monitoring incoming traffic of the multicast data flow. At least partly in response to determining that an expected amount of the incoming traffic of the multicast data flow is being received at the router, reporting to a network administrator device, a location of the router in the multicast data flow. Further, at least partly in response to determining that an expected amount of the incoming traffic of the multicast a data flow is not being received, sending, by the router and to an upstream router, an instruction to begin monitoring incoming traffic of the multicast data flow.

公开(公告)号：US20220417134A1

公开(公告)日：2022-12-29

申请号：US17897890

申请日：2022-08-29

Applicant: Cisco Technology, Inc.

Inventor： Neeraj Malhotra ,  Satya Ranjan Mohanty ,  Dongling Duan ,  Nitin Kumar ,  Narasimha Prasad Salagame Nagaraj

IPC: H04L45/24 ,  H04L47/17 ,  H04L45/74

Abstract: Techniques and mechanisms for a control plane approach for dense topologies that focusses on discovering shared ECMP groups in the control plane independent of per-prefix learning and then learning prefixes via these shared ECMP groups instead of learning prefixes via one next-hop at a time. In dense topologies, this approach helps minimize BGP path scale, corresponding signaling and enables control plane scaling that is an order of magnitude higher than a traditional eBGP control plane. During link and node topology changes, the described control plane approach enables control plane signaling that is prefix independent and an order of magnitude lower. A control plane approach to path-list sharing and prefix independent signaling on link and node topology changes enables prefix independent convergence (PIC) in scenarios that would not be possible otherwise with traditional FIB driven path-list sharing and PIC.

公开(公告)号：US20210351954A1

公开(公告)日：2021-11-11

申请号：US16871827

申请日：2020-05-11

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Jean-Philippe Vasseur ,  Nitin Kumar ,  Rajiv Asati ,  Luc De Ghein

IPC: H04L12/44 ,  H04L12/18 ,  H04L12/801 ,  H04L12/931 ,  G06N20/00

Abstract: In one embodiment, a device deploys a first machine learning model to an inference location in a network. The first machine learning model is used at the inference location to make inferences about the network. The device receives, from the inference location, an indication that the first machine learning model is exhibiting poor performance. The device identifies a corrective measure for the poor performance that minimizes resource consumption by a model training pipeline of the device. The device deploys, based on the corrective measure, a second machine learning model to the inference location. The second machine learning model is used in lieu of the first machine learning model to make the inferences about the network.

公开(公告)号：US11115329B1

公开(公告)日：2021-09-07

申请号：US16664582

申请日：2019-10-25

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  IJsbrand Wijnands ,  Nagendra Kumar Nainar ,  Nitin Kumar

IPC: H04L12/721 ,  H04L12/741 ,  H04L12/723 ,  H04L12/761

Abstract: This disclosure describes a method usable in a network that has a combination of mLDP-capable and BIER-capable devices. The disclosed method includes advertising, by an mLDP-capable multicast source, an indication of a BIER edge router that it has determined is usable as a path between the BIER devices and the mLDP-capable multicast source. A provider edge router can include in a multicast join message both an indication of the mLDP-capable multicast source as well as the indication of the BIER router advertised as being usable as the path to the mLDP-capable multicast source. The BIER devices can communicate with each other to pass a multicast join message to the BIER edge router that is indicated as being usable as the path to the mLDP-capable multicast source.