公开(公告)号：US20210058306A1

公开(公告)日：2021-02-25

申请号：US16549407

申请日：2019-08-23

Applicant: Cisco Technology, Inc.

Inventor： Thomas Szigeti ,  David John Zacks ,  Mark Montanez ,  Prakash Kaligotla

IPC: H04L12/26 ,  H04L12/24

Abstract: Systems, methods, and computer-readable for determining performance metrics of a network include obtaining, from a network assurance system, one or more network performance metrics, the network performance metrics corresponding to execution of one or more applications in a network domain. An Application Performance Management (APM) system provides one or more applications performance metrics, the applications performance metrics corresponding to execution of the one or more applications in an applications domain. The one or more network performance metrics are integrated with the one or more applications performance metrics to determine integrated performance metrics for the one or more applications across the network domain and the applications domain.

公开(公告)号：US10931534B2

公开(公告)日：2021-02-23

申请号：US15800055

申请日：2017-10-31

Applicant: Cisco Technology, Inc.

Inventor： Harish Nataraj ,  Ajay Chandel ,  Nikhar Rakesh Saxena ,  Naveen Kondapalli ,  Prakash Kaligotla

IPC: H04L12/24 ,  H04L29/06 ,  H04L12/26 ,  H04L29/08 ,  H04L29/12

Abstract: According to one or more embodiments of the disclosure, techniques herein provide for auto discovery of network proxies. In particular, in one embodiment, a controller in a computer network receives, from both source devices and destination devices, corresponding Transmission Control Protocol/Internet Protocol (TCP/IP) information and associated transaction identifiers (IDs) for packets sent by the source devices and for packets received at the destination devices. The controller may then correlate particular source TCP/IP information to particular destination TCP/IP information based on associated transaction IDs being the same, and can compare the correlated source TCP/IP information and destination TCP/IP information in order to determine whether a proxy device exists (e.g., and which particular type of proxy device exists) between the source device and the destination device.

公开(公告)号：US10659338B1

公开(公告)日：2020-05-19

申请号：US15800061

申请日：2017-10-31

Applicant: Cisco Technology, Inc.

Inventor： Harish Nataraj ,  Ajay Chandel ,  Naveen Kondapalli ,  Prakash Kaligotla

IPC: H04L12/26 ,  H04L12/733

Abstract: In one embodiment, an agent process produces synthetic packet traffic and iteratively performs a sub-process that determines isolated network segments of the communication channel between intermediate nodes and computes a set of network metrics for the isolated network segments based at least in part on incrementing TTL expiry error data points. The sub-process also encapsulates, for inclusion within the next packet to be sent, a list of intermediate node IDs along the communication channel up to a latest received node ID and computed sets of network metrics for respective network segments. The agent process may then generate, upon termination of the sub-process, a report, the report including the list of intermediate node IDs along the communication channel up to a latest received node ID and computed sets of network metrics for respective network segments.

公开(公告)号：US10462031B1

公开(公告)日：2019-10-29

申请号：US15800039

申请日：2017-10-31

Applicant: Cisco Technology, Inc.

Inventor： Harish Nataraj ,  Ajay Chandel ,  Naveen Kondapalli ,  Prakash Kaligotla

IPC: H04L12/26

Abstract: In one embodiment, a network agent, associated with an operating system of a computing device, tracks socket connection calls made by a plurality of cotenant processes on the computing device that share a common network transport between the computing device and a remote computing device. The network agent may then extract a process identification (ID) for the socket connection calls, the process ID identifying which particular cotenant process of the plurality of cotenant processes is making each particular socket connection call. While monitoring network metrics of network traffic flows over socket connections between the computing device and the remote computing device, the network agent may attribute given network metrics from particular socket connections to a corresponding cotenant process based on the correlated process ID for the socket connection. As such, the network agent may then report the network metrics as attributed to the corresponding cotenant processes.

公开(公告)号：US20190132207A1

公开(公告)日：2019-05-02

申请号：US15800055

申请日：2017-10-31

Applicant: Cisco Technology, Inc.

Inventor： Harish Nataraj ,  Ajay Chandel ,  Nikhar Rakesh Saxena ,  Naveen Kondapalli ,  Prakash Kaligotla

IPC: H04L12/24 ,  H04L29/06

Abstract: According to one or more embodiments of the disclosure, techniques herein provide for auto discovery of network proxies. In particular, in one embodiment, a controller in a computer network receives, from both source devices and destination devices, corresponding Transmission Control Protocol/Internet Protocol (TCP/IP) information and associated transaction identifiers (IDs) for packets sent by the source devices and for packets received at the destination devices. The controller may then correlate particular source TCP/IP information to particular destination TCP/IP information based on associated transaction IDs being the same, and can compare the correlated source TCP/IP information and destination TCP/IP information in order to determine whether a proxy device exists (e.g., and which particular type of proxy device exists) between the source device and the destination device.

公开(公告)号：US11165672B2

公开(公告)日：2021-11-02

申请号：US16549407

申请日：2019-08-23

Applicant: Cisco Technology, Inc.

Inventor： Thomas Szigeti ,  David John Zacks ,  Mark Montanez ,  Prakash Kaligotla

IPC: G06F15/173 ,  H04L12/26 ,  H04L12/24

Abstract: Systems, methods, and computer-readable for determining performance metrics of a network include obtaining, from a network assurance system, one or more network performance metrics, the network performance metrics corresponding to execution of one or more applications in a network domain. An Application Performance Management (APM) system provides one or more applications performance metrics, the applications performance metrics corresponding to execution of the one or more applications in an applications domain. The one or more network performance metrics are integrated with the one or more applications performance metrics to determine integrated performance metrics for the one or more applications across the network domain and the applications domain.

公开(公告)号：US20210184937A1

公开(公告)日：2021-06-17

申请号：US17176328

申请日：2021-02-16

Applicant: Cisco Technology, Inc.

Inventor： Harish Nataraj ,  Ajay Chandel ,  Nikhar Rakesh Saxena ,  Naveen Kondapalli ,  Prakash Kaligotla

IPC: H04L12/24 ,  H04L29/06 ,  H04L12/26 ,  H04L29/08

Abstract: According to one or more embodiments of the disclosure, techniques herein provide for auto discovery of network proxies. In particular, in one embodiment, a controller in a computer network receives, from both source devices and destination devices, corresponding Transmission Control Protocol/Internet Protocol (TCP/IP) information and associated transaction identifiers (IDs) for packets sent by the source devices and for packets received at the destination devices. The controller may then correlate particular source TCP/IP information to particular destination TCP/IP information based on associated transaction IDs being the same, and can compare the correlated source TCP/IP information and destination TCP/IP information in order to determine whether a proxy device exists (e.g., and which particular type of proxy device exists) between the source device and the destination device.

公开(公告)号：US11522765B2

公开(公告)日：2022-12-06

申请号：US17176328

申请日：2021-02-16

Applicant: Cisco Technology, Inc.

Inventor： Harish Nataraj ,  Ajay Chandel ,  Nikhar Rakesh Saxena ,  Naveen Kondapalli ,  Prakash Kaligotla

IPC: H04L41/12 ,  H04L69/22 ,  H04L43/026 ,  H04L69/16 ,  H04L43/028 ,  H04L67/56 ,  H04L61/2514

Abstract: According to one or more embodiments of the disclosure, techniques herein provide for auto discovery of network proxies. In particular, in one embodiment, a controller in a computer network receives, from both source devices and destination devices, corresponding Transmission Control Protocol/Internet Protocol (TCP/IP) information and associated transaction identifiers (IDs) for packets sent by the source devices and for packets received at the destination devices. The controller may then correlate particular source TCP/IP information to particular destination TCP/IP information based on associated transaction IDs being the same, and can compare the correlated source TCP/IP information and destination TCP/IP information in order to determine whether a proxy device exists (e.g., and which particular type of proxy device exists) between the source device and the destination device.

公开(公告)号：US20220116290A1

公开(公告)日：2022-04-14

申请号：US17502965

申请日：2021-10-15

Applicant: Cisco Technology, Inc.

Inventor： Thomas Szigeti ,  David John Zacks ,  Mark Montanez ,  Prakash Kaligotla

IPC: H04L43/04 ,  H04L41/0604 ,  H04L41/12 ,  H04L41/0686 ,  H04L41/0631

Abstract: Systems, methods, and computer-readable for determining performance metrics of a network include obtaining, from a network assurance system, one or more network performance metrics, the network performance metrics corresponding to execution of one or more applications in a network domain. An Application Performance Management (APM) system provides one or more applications performance metrics, the applications performance metrics corresponding to execution of the one or more applications in an applications domain. The one or more network performance metrics are integrated with the one or more applications performance metrics to determine integrated performance metrics for the one or more applications across the network domain and the applications domain.

公开(公告)号：US10904096B2

公开(公告)日：2021-01-26

申请号：US16229663

申请日：2018-12-21

Applicant: Cisco Technology, Inc.

Inventor： Harish Nataraj ,  Ajay Chandel ,  Prakash Kaligotla

IPC: H04L12/24 ,  H04L12/803 ,  H04L12/26 ,  H04L12/801

Abstract: In one embodiment, a network analysis process initiates network path analysis for a transaction application operating over a logical transaction path having a first segment from a first set of transaction servers to a load balancer and a second segment then to a second set of transaction servers. The network path analysis, when for the second segment, comprises: selecting a receiving transaction server of the second set of transaction servers; identifying a TCP session associated with the transaction application already in progress to the receiving transaction server; initiating a TCP traceroute using ACK packets, whose signature matches the in-progress TCP session, from the receiving transaction server to the load balancer; and determining, in reverse, a network path of layer-3 segments and associated network metrics between the receiving transaction server and the load balancer. Specific layer-3 segments of the network path causing performance degradation of the transaction application are then identifiable.