公开(公告)号：US12212485B2

公开(公告)日：2025-01-28

申请号：US18317576

申请日：2023-05-15

Applicant: Cisco Technology, Inc.

Inventor： Rajeev Kumar ,  Rajagopal Venkatraman

IPC: H04L45/16 ,  H04L12/18 ,  H04L43/12 ,  H04L45/00

Abstract: A method may include bridging in, via a fabric, a multicast data packet from a source device to a first edge device of a plurality of edge devices and flooding the multicast data packet to the plurality of edge devices within a mutual subnetwork of the fabric. The method further includes bridging out the multicast data packet from a second edge device of the plurality of edge devices to a receiving device. The source device and the receiving device are located within the mutual subnetwork.

公开(公告)号：US20240267326A1

公开(公告)日：2024-08-08

申请号：US18640438

申请日：2024-04-19

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Kumar Hooda ,  Anoop Vetleth ,  Himanshu Mehra ,  Rajeev Kumar

IPC: H04L45/00 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/087

CPC classification number: H04L45/70 ,  H04L43/0829 ,  H04L43/0858 ,  H04L43/087

Abstract: Systems, methods, and computer-readable media are provided for performing secure frame encryption as a service. For instance, a network edge device can determine at least a first path and a second path for routing a data packet. The network edge device can obtain a first plurality of values for at least one network metric, wherein the first plurality of values corresponds to the first path and at least a first backup path associated with the first path. The network edge device can obtain a second plurality of values for the at least one network metric, wherein the second plurality of values corresponds to the second path and at least a second backup path associated with the second path. The network edge device can select a path for routing the data packet based on a comparison of the first plurality of values and the second plurality of values.

公开(公告)号：US20240089234A1

公开(公告)日：2024-03-14

申请号：US18513320

申请日：2023-11-17

Applicant: Cisco Technology, Inc.

Inventor： Rajeev Kumar ,  Sanjay Kumar Hooda ,  Ramesh Chandra Yeevani-Srinivas

IPC: H04L61/5014

CPC classification number: H04L61/5014

Abstract: Automated techniques for converting network devices from a Layer 2 (L2) network into a Layer 3 (L3) network in a hierarchical manner are described herein. The network devices may be configured to boot such that their ports are in an initialization mode in which the ports are unable to transmit locally generated DHCP packets. When a network device detects that a neighbor (or “peer”) device has acquired an IP address or has been configured by a network controller, then the port on which the neighbor device is detected can then be transitioned from the initialization mode into a forwarding mode. In the forwarding mode, the port can be used to transmit packets to obtain an IP address. Thus, the network devices are converted from an L2 device to an L3 device in a hierarchical order such that upstream devices are discovered and converted into L3 devices before downstream devices.

公开(公告)号：US11824753B2

公开(公告)日：2023-11-21

申请号：US17446965

申请日：2021-09-05

Applicant: Cisco Technology, Inc.

Inventor： Rajagopal Venkatraman ,  Rajeev Kumar ,  Roberto Mitsuo Kobo ,  Vikash Agarwal

IPC: H04L43/12 ,  H04L45/02 ,  H04L45/74

CPC classification number: H04L43/12 ,  H04L45/02 ,  H04L45/74

Abstract: In one embodiment, network node-to-node connectivity verification is performed in a network including data path processing of packets within a packet switching device. In one embodiment, an echo request connectivity test packet, emulating an echo request connectivity test packet received from a first connected network node, is inserted by the packet switching device prior in its data processing path prior to ingress processing performed for packets received from the first connected network node. A correspondingly received echo reply connectivity test packet is intercepted by the packet switching device during data path egress processing performed for packets to be forwarded to the first connected network node.

公开(公告)号：US20230010247A1

公开(公告)日：2023-01-12

申请号：US17368503

申请日：2021-07-06

Applicant: Cisco Technology, Inc.

Inventor： Rajeev Kumar ,  Rajagopal Venkatraman

IPC: H04L12/761 ,  H04L12/733 ,  H04L12/721 ,  H04L12/18 ,  H04L12/26

Abstract: A method may include bridging in, via a fabric, a multicast data packet from a source device to a first edge device of a plurality of edge devices and flooding the multicast data packet to the plurality of edge devices within a mutual subnetwork of the fabric. The method further includes bridging out the multicast data packet from a second edge device of the plurality of edge devices to a receiving device. The source device and the receiving device are located within the mutual subnetwork.

公开(公告)号：US12113698B2

公开(公告)日：2024-10-08

申请号：US17446918

申请日：2021-09-03

Applicant: Cisco Technology, Inc.

Inventor： Rajeev Kumar ,  Sanjay K. Hooda ,  Balaji Pitta Venkatachalapathy ,  Prakash C. Jain ,  Rajagopal Venkatraman

IPC: H04L45/64 ,  H04L45/02 ,  H04L45/745

CPC classification number: H04L45/02 ,  H04L45/64 ,  H04L45/745

Abstract: Techniques and apparatus for allowing a network fabric to accept network devices associated with other fabric networks are described. An example technique involves establishing a communication session between a first network node and a first control plane of the network fabric, wherein the first network node supports a second control plane different from the first control plane; First routing information from the first network node is imported into a first routing table of the first control plane. Second routing information from a second network node is imported into a second routing table of the first network node.

公开(公告)号：US20230029882A1

公开(公告)日：2023-02-02

申请号：US17390677

申请日：2021-07-30

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Kumar Hooda ,  Anoop Vetteth ,  Himanshu Mehra ,  Rajeev Kumar

IPC: H04L12/721 ,  H04L12/26

Abstract: Systems, methods, and computer-readable media are provided for performing secure frame encryption as a service. For instance, a network edge device can determine at least a first path and a second path for routing a data packet. The network edge device can obtain a first plurality of values for at least one network metric, wherein the first plurality of values corresponds to the first path and at least a first backup path associated with the first path. The network edge device can obtain a second plurality of values for the at least one network metric, wherein the second plurality of values corresponds to the second path and at least a second backup path associated with the second path. The network edge device can select one of the first path or the second path for routing the data packet based on a comparison of the first plurality of values and the second plurality of values.

公开(公告)号：US11496589B2

公开(公告)日：2022-11-08

申请号：US17097709

申请日：2020-11-13

Applicant: Cisco Technology, Inc.

Inventor： Prakash C. Jain ,  Sanjay Kumar Hooda ,  Rajeev Kumar ,  Ramesh Yeevani-Srinivas

IPC: G06F15/173 ,  H04L67/51 ,  H04L65/1073

Abstract: Services with policy control may be provided. A computing device may receive registration information associated with a border device. The registration information may comprise information identifying a service provided by a server associated with the border device, information identifying the border device, and policies associated with the service. Then an address for the server may be determined. Next a request may be received comprising the information identifying the service provided by the server. In response to receiving the request comprising the information identifying the service provided by the server, the address for the server, the information identifying the border device, and the policies associated with the service may be provided.

公开(公告)号：US20220272033A1

公开(公告)日：2022-08-25

申请号：US17185279

申请日：2021-02-25

Applicant: Cisco Technology, Inc.

Inventor： Prakash Jain ,  Sanjay Kumar Hooda ,  Rajeev Kumar ,  Saravanan Radhakrishnan ,  Solomon T. Lucas ,  Ramesh Yeevani-Srinivas

IPC: H04L12/717 ,  H04L12/725 ,  H04L12/715 ,  H04L12/713 ,  H04L12/26 ,  H04L12/46

Abstract: A map server/map resolver (MS/MR) of a Locator ID Separation Protocol (LISP) control plane for an enterprise private network for group-based service insertion is described. The MS/MR may facilitate communications from a first host having a first endpoint ID (EID) and located at a first tunnel router having a first routing locator (RLOC), to a second host having a second EID and located at a second tunnel router having a second RLOC. The MS/MR receives, from the first tunnel router, a map request for requesting an EID-to-RLOC mapping associated with the second EID and including a group identifier. The MS/MR selects a service insertion policy including an address of a service border router for a service that is registered with the MS/MR, and responds with a map reply including the address for populating an overlay route for forwarding communications via the service border router for insertion of the registered service.

公开(公告)号：US12212540B2

公开(公告)日：2025-01-28

申请号：US18513320

申请日：2023-11-17

Applicant: Cisco Technology, Inc.

Inventor： Rajeev Kumar ,  Sanjay Kumar Hooda ,  Ramesh Chandra Yeevani-Srinivas

IPC: H04L67/55 ,  H04L61/5014

Abstract: Automated techniques for converting network devices from a Layer 2 (L2) network into a Layer 3 (L3) network in a hierarchical manner are described herein. The network devices may be configured to boot such that their ports are in an initialization mode in which the ports are unable to transmit locally generated DHCP packets. When a network device detects that a neighbor (or “peer”) device has acquired an IP address or has been configured by a network controller, then the port on which the neighbor device is detected can then be transitioned from the initialization mode into a forwarding mode. In the forwarding mode, the port can be used to transmit packets to obtain an IP address. Thus, the network devices are converted from an L2 device to an L3 device in a hierarchical order such that upstream devices are discovered and converted into L3 devices before downstream devices.