公开(公告)号：US11516004B2

公开(公告)日：2022-11-29

申请号：US17162473

申请日：2021-01-29

Applicant: Cisco Technology, Inc.

Inventor： Syed Khalid Raza ,  Praveen Raju Kariyanahalli ,  Rameshbabu Prabagaran ,  Amir Khan

IPC: H04L9/08 ,  H04L9/40

Abstract: A method for securing communications for a given network topology is provided. The method comprises generating by a node N(i) of the network, security parameters for the node N(i); transmitting by the node N(i), said security parameters to a controller for the network; maintaining by the controller said security parameters for the node N(i); receiving by the controller a request from a node N(j) for the security parameters for the node N(i); retrieving by the controller the security parameters for the node N(i); and transmitting by the controller said security parameters to the node N(j).

公开(公告)号：US11088992B2

公开(公告)日：2021-08-10

申请号：US16536756

申请日：2019-08-09

Applicant: Cisco Technology, Inc.

Inventor： Lars Olof Stefan Olofsson ,  Atif Khan ,  Syed Khalid Raza ,  Himanshu H. Shah ,  Amir Khan ,  Nehal Bhau

IPC: H04L29/06 ,  H04L12/46 ,  H04L29/08 ,  H04L9/08 ,  H04L12/715

Abstract: A method for operating a network is provided. The method comprises segmenting the network into a plurality of virtual private networks, wherein each virtual private network runs on an underlying physical network; and wherein each virtual private network represents a particular context; and configuring at least some nodes within the network to send and receive traffic based on context.

公开(公告)号：USRE50121E1

公开(公告)日：2024-09-10

申请号：US17104933

申请日：2020-11-25

Applicant: Cisco Technology, Inc.

Inventor： Lars Olof Stefan Olofsson ,  Atif Khan ,  Syed Khalid Raza ,  Himanshu H. Shah ,  Amir Khan ,  Nehal Bhau

IPC: H04L12/28 ,  H04L12/911 ,  H04L45/64 ,  H04L47/70

CPC classification number: H04L47/70 ,  H04L45/64

Abstract: A method for routing is disclosed. The method comprises establishing an overlay network, comprising a plurality of network elements and an overlay controller; wherein the overlay controller is in communication with each network element via a secure tunnel established through an underlying transport network; receiving by the overlay controller, information from each service-hosting network element information said information identifying a service hosted at that service-hosting network element, and label associated with the service-hosting network element; identifying by the overlay controller, at least one policy that associates traffic from a site with a service; and causing by said overly controller, the at least one policy to be executed so that traffic from the site identified in the policy is routed using the underlying transport network to the service-hosting network element associated with the said service.

公开(公告)号：US12028246B2

公开(公告)日：2024-07-02

申请号：US18134285

申请日：2023-04-13

Applicant: Cisco Technology, Inc.

Inventor： Amir Khan

IPC: H04L12/00 ,  H04L45/00 ,  H04L45/02 ,  H04L45/74

CPC classification number: H04L45/34 ,  H04L45/04 ,  H04L45/74

Abstract: Techniques and mechanisms for monitoring and processing telemetry information of an Internet Protocol version 6 (IPv6) packet in a network. The IPv6 packet includes an IPv6 header having a Segment Identifier (SID) field, and a function field. According to this disclosure, the function field may include a function associated with an operation for collecting telemetry information of a first node indicated by the SID field. When the function executed by the first node, it may collect the telemetry information from the first node, and export the telemetry information to a collector node. Further, the function may indicate an operation for collecting the telemetry information of a set of paths including one or more nodes, where the telemetry path can be changed dynamically. In this way, each node in the telemetry path may define a new path for collecting the telemetry information.

公开(公告)号：US20200374109A1

公开(公告)日：2020-11-26

申请号：US16988439

申请日：2020-08-07

Applicant: Cisco Technology, Inc.

Inventor： Syed Khalid Raza ,  Praveen Raju Kariyanahalli ,  Rameshbabu Prabagaran ,  Amir Khan

IPC: H04L9/08 ,  H04L29/06

Abstract: A method for securing communications for a given network topology is provided. The method comprises generating by a node N(i) of the network, security parameters for the node N(i); transmitting by the node N(i), said security parameters to a controller for the network; maintaining by the controller said security parameters for the node N(i); receiving by the controller a request from a node N(j) for the security parameters for the node N(i); retrieving by the controller the security parameters for the node N(i); and transmitting by the controller said security parameters to the node N(j).