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公开(公告)号：US20240205160A1
公开(公告)日：2024-06-20
申请号：US18081503
申请日：2022-12-14
Applicant: Cisco Technology, Inc.
Inventor： Pritam Baruah , Afroze Mohammad
IPC: H04L47/41 , H04L47/2425
CPC classification number: H04L47/41 , H04L47/2425
Abstract: Techniques are described for providing service level agreement performance in a link aggregation group computer networking environment. A performance measurement data packet such as a bi-directional forwarding detection (BFD) packet is received. The performance measuring data packet can be considered a parent performance measurement data packet is split into multiple child performance measurement data packets which are each different constituent links of a link aggregation database. The performance of each constituent is tested to determine which constituents satisfy service level agreement parameters. Data packets can then be sent to constituents that meet the data packet's service level agreement performance parameters while still allowing link aggregation grouping.
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公开(公告)号：US11881934B2
公开(公告)日：2024-01-23
申请号：US18051298
申请日：2022-10-31
Applicant: Cisco Technology, Inc.
Inventor： Jianda Liu , Xiaorong Wang , Shen Yong Qing , Olivier Patrick Jean Pelerin , Frederic René Philippe Detienne , Pritam Baruah , Ruchir Jain
IPC: H04L12/26 , H04L43/10 , H04L43/062
CPC classification number: H04L43/10 , H04L43/062
Abstract: In one embodiment, a method includes receiving, by a network orchestrator, trace parameters from a user device. The method also includes determining, by the network orchestrator, to initiate a network path trace for the application, generating, by the network orchestrator, a filter policy for the network path trace using the trace parameters, and allocating, by the network orchestrator, a trace identification to the network path trace. The method also includes initiating, by the network orchestrator, the network path trace within a network by communicating the filter policy and the trace identification to a first node of the network and receiving, by the network orchestrator, network path trace data from a plurality of nodes of the network. The method further includes generating, by the network orchestrator, a trace report for the application using the network path trace data.
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公开(公告)号：US20240414094A1
公开(公告)日：2024-12-12
申请号：US18208165
申请日：2023-06-09
Applicant: Cisco Technology, Inc.
Inventor： Avinash Shah , Ganesh Devendrachar , Arul Murugan Manickam , Laxmikantha Reddy Ponnuru , Satyajit Das , Pritam Baruah
IPC: H04L47/36
Abstract: Techniques are described for detecting a change in Path Maximum Transfer Unit (PMTU) in a network and initiating a PMTU discovery process. A Bidirectional Forwarding Detection (BFD) data packet is generated having enhanced headers configured to record a largest packet sent value and a largest packet received value. The BFD data packet is sent from a first network device (such as a first router) to a second network device (such as a second router). A largest packet sent value and a largest packet received value are each recorded in the BFD data packet. If the largest data packet sent value is larger than the largest data packet received value, then a determination can be made that a path change has resulted in a reduction in PMTU which has resulted in either a data packet being fragmented, a data packet being dropped or both. A PMTU discovery can then be performed.
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公开(公告)号：US20230344771A1
公开(公告)日：2023-10-26
申请号：US17816818
申请日：2022-08-02
Applicant: Cisco Technology, Inc.
Inventor： Arul Murugan Manickam , Avinash Shah , Laxmikantha Reddy Ponnuru , Satyajit Das , Deepa Rajendra Sangolli , Govindakrishnan Kannan , Pritam Baruah
IPC: H04L47/125 , H04L47/2416
CPC classification number: H04L47/125 , H04L47/2416
Abstract: In one embodiment, a method includes receiving traffic and identifying one or more attributes associated with the traffic. The method also includes dynamically selecting a load balancing algorithm based on the one or more attributes in accordance with a load balancing scheme. The method further includes performing load balancing on the traffic in accordance with the load balancing algorithm and communicating the traffic from a first network element to a second network element in accordance with the load balancing.
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公开(公告)号：US20230112928A1
公开(公告)日：2023-04-13
申请号：US18051298
申请日：2022-10-31
Applicant: Cisco Technology, Inc.
Inventor： Jianda Liu , Xiaorong Wang , Shen Yong Qing , Olivier Patrick Jean Pelerin , Frederic René Philippe Detienne , Pritam Baruah , Ruchir Jain
IPC: H04L43/10 , H04L43/062
Abstract: In one embodiment, a method includes receiving, by a network orchestrator, trace parameters from a user device. The method also includes determining, by the network orchestrator, to initiate a network path trace for the application, generating, by the network orchestrator, a filter policy for the network path trace using the trace parameters, and allocating, by the network orchestrator, a trace identification to the network path trace. The method also includes initiating, by the network orchestrator, the network path trace within a network by communicating the filter policy and the trace identification to a first node of the network and receiving, by the network orchestrator, network path trace data from a plurality of nodes of the network. The method further includes generating, by the network orchestrator, a trace report for the application using the network path trace data.
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Patent Agency Ranking
公开(公告)号：US20230261963A1
公开(公告)日：2023-08-17
申请号：US17846647
申请日：2022-06-22
Applicant: Cisco Technology, Inc.
Inventor： Anubhav Gupta , Pritam Baruah , Laxmikantha Reddy Ponnuru , Sireesha Yeruva
Abstract: The subject matter of this disclosure relates in general to the field of computer networking, and more particularly, to systems and methods for discovery of a tunnel for wide area network. Certain aspects provide a method for network path analysis. The method includes sending a first probe packet configured to identify a network tunnel, wherein the first probe packet includes an identifier of the first probe packet and a first time to live (TTL) value that corresponds to a first network hop; receiving a first response message from the first network hop in the network tunnel, wherein the first response message corresponds to the first probe packet and includes the identifier of the first probe packet; and analyzing the network tunnel based on the first response message including the identifier of the first probe packet.
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公开(公告)号：US11343180B2
公开(公告)日：2022-05-24
申请号：US17091478
申请日：2020-11-06
Applicant: Cisco Technology, Inc.
Inventor： Pritam Baruah , Gaurav Shrivastava
Abstract: The present technology discloses methods, systems, and non-transitory computer-readable media for defining, for a network primitive in a network domain, whether the network primitive can receive data carrying an assigned context associated from one or more source nodes through a software-defined wide area network (SDWAN) fabric overlay; advertising a capability of the network primitive, the capability stating whether the network primitive can receive the data carrying the assigned context; and controlling selective transmission of the data carrying the assigned context from the one or more source nodes to the network primitive through the SDWAN fabric overlay based on the capability of the network primitive to receive the data carrying the assigned context.
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公开(公告)号：US20250106170A1
公开(公告)日：2025-03-27
申请号：US18472052
申请日：2023-09-21
Applicant: Cisco Technology, Inc.
Inventor： Avinash Shah , Pritam Baruah , Jai Prakash Agrawal , Amjad Inamdar
Abstract: Disclosed are systems, apparatuses, methods, computer readable medium, and circuits for ordering services in a service chain comprising: receiving, at an edge router, one or more data packets; determining, at the edge router, a sequence order of service chain elements for the one or more data packets based upon an established sequence, the sequence order modifies the established sequence to performing an altering service that alters a payload of the one or more packets prior to one or more remaining services that inspect the one or more packets; transmitting and receiving, by the edge router in the sequence order, the one or more data packets to and from the service chain elements; transmitting, by the edge router, the one more data packets to a destination after a last of the service chain elements has been performed.
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公开(公告)号：US20250106150A1
公开(公告)日：2025-03-27
申请号：US18472011
申请日：2023-09-21
Applicant: Cisco Technology, Inc.
Inventor： Avinash Shah , Pritam Baruah , Amjad Inamdar , Laxmikantha Reddy Ponnuru , Latika Ahuja , Jai Prakash Agrawal
Abstract: A system facilitates communication between branches of an SD-WAN and a service chain element. A hub node receives a data packet of a flow from a source branch over a VPN segment to be transmitted to a destination branch, extracts flow information from the data packet including VPN segment information to be stored in a flow table before transmitting the data packet to the service chain element over a service chain VPN. Upon return of the data packet from the service chain element, the hub node uses packet tuple information to retrieve the flow information with VPN segment information from the flow table. The hub node can then forward the data packet to the destination branch over the VPN segment. The hub node can generate and store an Auto Service Chaining Key that connects bidirectional flows so that the hub node can apply service-chaining to bidirectional traffic.
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公开(公告)号：US20250071060A1
公开(公告)日：2025-02-27
申请号：US18409701
申请日：2024-01-10
Applicant: Cisco Technology, Inc.
Inventor： Steven Wood , Balaji Sundararajan , Laxmikantha Reddy Ponnuru , Avinash Shah , Pritam Baruah , Venkatesh Nataraj , Ganesh Devendrachar
Abstract: Generally, Software-Defined Wide Area Networks (SD-WAN) generally do not support network segmentation. The concepts disclosed herein connects IPSec SD-WAN fabric to a Virtual Routing and Forwarding (VRF) router and make use of a Software Defined Cloud Interconnect (SDCI) Router to route traffic from IPSec SD-WAN to various cloud services from the SDCI Router in the fabric. The concepts disclosed herein also provides for tunnel multi-plexing that takes incoming and outgoing traffic and maps VPNs to any service VRF associated with the cloud based services.
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