公开(公告)号：US12224921B2

公开(公告)日：2025-02-11

申请号：US18429022

申请日：2024-01-31

Applicant: Cisco Technology, Inc.

Inventor： Navindra Yadav ,  Abhishek Ranjan Singh ,  Anubhav Gupta ,  Shashidhar Gandham ,  Jackson Ngoc Ki Pang ,  Shih-Chun Chang ,  Hai Trong Vu

IPC: G06F21/53 ,  G06F3/0482 ,  G06F3/04842 ,  G06F3/04847 ,  G06F9/455 ,  G06F16/11 ,  G06F16/13 ,  G06F16/16 ,  G06F16/17 ,  G06F16/174 ,  G06F16/23 ,  G06F16/2457 ,  G06F16/248 ,  G06F16/28 ,  G06F16/29 ,  G06F16/9535 ,  G06F21/55 ,  G06F21/56 ,  G06N20/00 ,  G06N99/00 ,  G06T11/20 ,  H04J3/06 ,  H04J3/14 ,  H04L1/24 ,  H04L7/10 ,  H04L9/08 ,  H04L9/32 ,  H04L9/40 ,  H04L41/046 ,  H04L41/0668 ,  H04L41/0803 ,  H04L41/0806 ,  H04L41/0816 ,  H04L41/0893 ,  H04L41/12 ,  H04L41/16 ,  H04L41/22 ,  H04L43/02 ,  H04L43/026 ,  H04L43/04 ,  H04L43/045 ,  H04L43/062 ,  H04L43/08 ,  H04L43/0805 ,  H04L43/0811 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/0864 ,  H04L43/0876 ,  H04L43/0882 ,  H04L43/0888 ,  H04L43/10 ,  H04L43/106 ,  H04L43/12 ,  H04L43/16 ,  H04L45/00 ,  H04L45/302 ,  H04L45/50 ,  H04L45/74 ,  H04L47/11 ,  H04L47/20 ,  H04L47/2441 ,  H04L47/2483 ,  H04L47/28 ,  H04L47/31 ,  H04L47/32 ,  H04L61/5007 ,  H04L67/01 ,  H04L67/10 ,  H04L67/1001 ,  H04L67/12 ,  H04L67/51 ,  H04L67/75 ,  H04L69/16 ,  H04L69/22 ,  H04W72/54 ,  H04W84/18 ,  H04L67/50

Abstract: Systems, methods, and computer-readable media for managing compromised sensors in multi-tiered virtualized environments. In some embodiments, a system can receive, from a first capturing agent deployed in a virtualization layer of a first device, data reports generated based on traffic captured by the first capturing agent. The system can also receive, from a second capturing agent deployed in a hardware layer of a second device, data reports generated based on traffic captured by the second capturing agent. Based on the data reports, the system can determine characteristics of the traffic captured by the first capturing agent and the second capturing agent. The system can then compare the characteristics to determine a multi-layer difference in traffic characteristics. Based on the multi-layer difference in traffic characteristics, the system can determine that the first capturing agent or the second capturing agent is in a faulty state.

公开(公告)号：US11936663B2

公开(公告)日：2024-03-19

申请号：US18054069

申请日：2022-11-09

Applicant: Cisco Technology, Inc.

Inventor： Navindra Yadav ,  Abhishek Ranjan Singh ,  Shashidhar Gandham ,  Ellen Christine Scheib ,  Omid Madani ,  Ali Parandehgheibi ,  Jackson Ngoc Ki Pang ,  Vimalkumar Jeyakumar ,  Michael Standish Watts ,  Hoang Viet Nguyen ,  Khawar Deen ,  Rohit Chandra Prasad ,  Sunil Kumar Gupta ,  Supreeth Hosur Nagesh Rao ,  Anubhav Gupta ,  Ashutosh Kulshreshtha ,  Roberto Fernando Spadaro ,  Hai Trong Vu ,  Varun Sagar Malhotra ,  Shih-Chun Chang ,  Bharathwaj Sankara Viswanathan ,  Fnu Rachita Agasthy ,  Duane Thomas Barlow

IPC: H04L9/40 ,  H04L43/04 ,  H04L43/0894 ,  H04L43/062

CPC classification number: H04L63/1408 ,  H04L43/04 ,  H04L43/0894 ,  H04L63/02 ,  H04L63/1425 ,  H04L43/062

Abstract: An example method includes detecting, using sensors, packets throughout a datacenter. The sensors can then send packet logs to various collectors which can then identify and summarize data flows in the datacenter. The collectors can then send flow logs to an analytics module which can identify the status of the datacenter and detect an attack.

公开(公告)号：US20230118563A1

公开(公告)日：2023-04-20

申请号：US18054069

申请日：2022-11-09

Applicant: Cisco Technology, Inc.

Inventor： Navindra Yadav ,  Abhishek Ranjan Singh ,  Shashidhar Gandham ,  Ellen Christine Scheib ,  Omid Madani ,  Ali Parandehgheibi ,  Jackson Ngoc Ki Pang ,  Vimalkumar Jeyakumar ,  Michael Standish Watts ,  Hoang Viet Nguyen ,  Khawar Deen ,  Rohit Chandra Prasad ,  Sunil Kumar Gupta ,  Supreeth Hosur Nagesh Rao ,  Anubhav Gupta ,  Ashutosh Kulshreshtha ,  Roberto Fernando Spadaro ,  Hai Trong Vu ,  Varun Sagar Malhotra ,  Shih-Chun Chang ,  Bharathwaj Sankara Viswanathan ,  Fnu Rachita Agasthy ,  Duane Thomas Barlow

IPC: H04L9/40 ,  H04L43/04 ,  H04L43/0894

Abstract: An example method includes detecting, using sensors, packets throughout a datacenter. The sensors can then send packet logs to various collectors which can then identify and summarize data flows in the datacenter. The collectors can then send flow logs to an analytics module which can identify the status of the datacenter and detect an attack.

公开(公告)号：US20220131773A1

公开(公告)日：2022-04-28

申请号：US17570179

申请日：2022-01-06

Applicant: Cisco Technology, Inc.

Inventor： Khawar Deen ,  Navindra Yadav ,  Anubhav Gupta ,  Shashidhar Gandham ,  Rohit Chandra Prasad ,  Abhishek Ranjan Singh ,  Shih-Chun Chang

IPC: H04L43/045 ,  G06F9/455 ,  G06N20/00 ,  G06F21/55 ,  G06F21/56 ,  G06F16/28 ,  G06F16/2457 ,  G06F16/248 ,  G06F16/29 ,  G06F16/16 ,  G06F16/17 ,  G06F16/11 ,  G06F16/13 ,  G06F16/174 ,  G06F16/23 ,  G06F16/9535 ,  G06N99/00 ,  H04L9/32 ,  H04L41/0668 ,  H04L43/0805 ,  H04L43/0811 ,  H04L43/0852 ,  H04L43/106 ,  H04L45/00 ,  H04L45/50 ,  H04L67/12 ,  H04L67/01 ,  H04L43/026 ,  H04L43/062 ,  H04L43/10 ,  H04L47/2441 ,  H04L41/0893 ,  H04L43/08 ,  H04L43/04 ,  H04W84/18 ,  H04L67/10 ,  H04L67/51 ,  H04L41/046 ,  H04L43/0876 ,  H04L41/12 ,  H04L41/16 ,  H04L41/0816 ,  G06F21/53 ,  H04L41/22 ,  G06F3/04842 ,  G06F3/04847 ,  H04L41/0803 ,  H04L67/75 ,  H04L43/0829 ,  H04L43/16 ,  H04L1/24 ,  H04W72/08 ,  H04L9/08 ,  H04J3/06 ,  H04J3/14 ,  H04L61/5007 ,  H04L47/20 ,  H04L47/32 ,  H04L43/0864 ,  H04L47/11 ,  H04L69/22 ,  H04L45/74 ,  H04L47/2483 ,  H04L43/0882 ,  H04L41/0806 ,  H04L43/0888 ,  H04L43/12 ,  H04L47/31 ,  G06F3/0482 ,  G06T11/20 ,  H04L43/02 ,  H04L47/28 ,  H04L69/16 ,  H04L67/1001 ,  H04L45/30

Abstract: A network analytics system can receive first sensor data, including first network activity and a first timestamp associated with a first clock of a first node, and second sensor data, including second network activity and a second timestamp associated with a second clock of a second node. The system can determine a first delta between the first clock and a third clock based on the first timestamp, and a second delta between the second clock and the third clock. The system can determine a first communication latency associated with a first sensor of the first node, and a second communication latency associated with a second sensor of the second node. The system can generate a report that synchronizes one or more data flows between the first node and the second node based on the first delta, the second delta, the first communication latency, and the second communication latency.

公开(公告)号：US20210243093A1

公开(公告)日：2021-08-05

申请号：US17238193

申请日：2021-04-22

Applicant: Cisco Technology, Inc.

Inventor： Mohammadreza Alizadeh Attar ,  Navindra Yadav ,  Abhishek Ranjan Singh ,  Vimalkumar Jeyakumar ,  Shashidhar Gandham ,  Roberto Fernando Spadaro

IPC: H04L12/26 ,  H04L29/06 ,  G06F9/455 ,  G06N20/00 ,  G06F21/55 ,  G06F21/56 ,  G06F16/28 ,  G06F16/2457 ,  G06F16/248 ,  G06F16/29 ,  G06F16/16 ,  G06F16/17 ,  G06F16/11 ,  G06F16/13 ,  G06F16/174 ,  G06F16/23 ,  G06F16/9535 ,  G06N99/00 ,  H04L9/32 ,  H04L12/24 ,  H04L12/715 ,  H04L12/723 ,  H04L29/08 ,  H04L12/851 ,  H04W84/18 ,  G06F21/53 ,  G06F3/0484 ,  H04L1/24 ,  H04W72/08 ,  H04L9/08 ,  H04J3/06 ,  H04J3/14 ,  H04L29/12 ,  H04L12/813 ,  H04L12/823 ,  H04L12/801 ,  H04L12/741 ,  H04L12/833 ,  H04L12/721 ,  G06F3/0482 ,  G06T11/20 ,  H04L12/841 ,  H04L12/725

Abstract: Systems, methods, and computer-readable media are provided for determining a packet's round trip time (RTT) in a network. A system can receive information of a packet sent by a component of the network and further determine an expected acknowledgement (ACK) sequence number associated with the packet based upon received information of the packet. The system can receive information of a subsequent packet received by the component and determine an ACK sequence number and a receiving time of the subsequent packet. In response to determining that the ACK sequence number of the subsequent TCP packet matches the expected ACK sequence number, the system can determine a round trip time (RTT) of the packet based upon the received information of the packet and the received information of the subsequent packet.

公开(公告)号：US20210160157A1

公开(公告)日：2021-05-27

申请号：US17161903

申请日：2021-01-29

Applicant: Cisco Technology, Inc.

Inventor： Navindra Yadav ,  Abhishek Ranjan Singh ,  Anubhav Gupta ,  Shashidhar Gandham ,  Jackson Ngoc Ki Pang ,  Shih-Chun Chang ,  Hai Trong Vu

IPC: H04L12/26 ,  H04L29/06 ,  G06F9/455 ,  G06N20/00 ,  G06F21/55 ,  G06F21/56 ,  G06F16/28 ,  G06F16/2457 ,  G06F16/248 ,  G06F16/29 ,  G06F16/16 ,  G06F16/17 ,  G06F16/11 ,  G06F16/13 ,  G06F16/174 ,  G06F16/23 ,  G06F16/9535 ,  G06N99/00 ,  H04L9/32 ,  H04L12/24 ,  H04L12/715 ,  H04L12/723 ,  H04L29/08 ,  H04L12/851 ,  H04W84/18 ,  G06F21/53 ,  G06F3/0484 ,  H04L1/24 ,  H04W72/08 ,  H04L9/08 ,  H04J3/06 ,  H04J3/14 ,  H04L29/12 ,  H04L12/813 ,  H04L12/823 ,  H04L12/801 ,  H04L12/741 ,  H04L12/833 ,  H04L12/721 ,  G06F3/0482 ,  G06T11/20 ,  H04L12/841 ,  H04L12/725

Abstract: Systems, methods, and computer-readable media for annotating process and user information for network flows. In some embodiments, a capturing agent, executing on a first device in a network, can monitor a network flow associated with the first device. The first device can be, for example, a virtual machine, a hypervisor, a server, or a network device. Next, the capturing agent can generate a control flow based on the network flow. The control flow may include metadata that describes the network flow. The capturing agent can then determine which process executing on the first device is associated with the network flow and label the control flow with this information. Finally, the capturing agent can transmit the labeled control flow to a second device, such as a collector, in the network.

公开(公告)号：US20200351184A1

公开(公告)日：2020-11-05

申请号：US16930116

申请日：2020-07-15

Applicant: Cisco Technology, Inc.

Inventor： Shashidhar Gandham ,  Rohit Chandra Prasad ,  Abhishek Ranjan Singh ,  Navindra Yadav ,  Khawar Deen ,  Varun Sagar Malhotra

IPC: H04L12/26 ,  H04L29/06 ,  G06F9/455 ,  G06N20/00 ,  G06F16/29 ,  G06F16/248 ,  G06F16/28 ,  G06F16/9535 ,  G06F16/2457 ,  G06F21/55 ,  G06F21/56 ,  H04L12/851 ,  H04L12/24 ,  H04W84/18 ,  H04L29/08 ,  G06F21/53 ,  H04L12/723 ,  G06F3/0484 ,  H04L1/24 ,  H04W72/08 ,  H04L9/08 ,  H04L9/32 ,  H04J3/06 ,  H04J3/14 ,  H04L29/12 ,  H04L12/813 ,  H04L12/823 ,  H04L12/801 ,  H04L12/741 ,  H04L12/833 ,  H04L12/721 ,  G06F3/0482 ,  G06T11/20 ,  H04L12/841 ,  H04L12/725 ,  H04L12/715 ,  G06F16/16 ,  G06F16/17 ,  G06F16/11 ,  G06F16/13 ,  G06N99/00 ,  G06F16/174 ,  G06F16/23

Abstract: Systems, methods, and computer-readable media for hierarchichal sharding of flows from sensors to collectors. A first collector can receive a first portion of a network flow from a first capturing agent and determine that a second portion of the network flow was not received from the first capturing agent. The first collector can then send the first portion of the network flow to a second collector. A third collector can receive the second portion of the network flow from a second capturing agent and determine that the third collector did not receive the first portion of the network flow. The third collector can then send the second portion of the network flow to the second collector. The second collector can then aggregate the first portion and second portion of the network flow to yield the entire portion of the network flow.

公开(公告)号：US20200304523A1

公开(公告)日：2020-09-24

申请号：US16899190

申请日：2020-06-11

Applicant: Cisco Technology, Inc.

Inventor： Navindra Yadav ,  Abhishek Ranjan Singh ,  Shashidhar Gandham ,  Ellen Christine Scheib ,  Omid Madani ,  Ali Parandehgheibi ,  Jackson Ngoc Ki Pang ,  Vimalkumar Jeyakumar ,  Michael Standish Watts ,  Hoang Viet Nguyen ,  Khawar Deen ,  Rohit Chandra Prasad ,  Sunil Kumar Gupta ,  Supreeth Hosur Nagesh Rao ,  Anubhav Gupta ,  Ashutosh Kulshreshtha ,  Roberto Fernando Spadaro ,  Hai Trong Vu ,  Varun Sagar Malhotra ,  Shih-Chun Chang ,  Bharathwaj Sankara Viswanathan ,  Fnu Rachita Agasthy ,  Duane Thomas Barlow

IPC: H04L29/06 ,  H04L12/26

Abstract: An example method includes detecting, using sensors, packets throughout a datacenter. The sensors can then send packet logs to various collectors which can then identify and summarize data flows in the datacenter. The collectors can then send flow logs to an analytics module which can identify the status of the datacenter and detect an attack.

公开(公告)号：US10516586B2

公开(公告)日：2019-12-24

申请号：US15171836

申请日：2016-06-02

Applicant: Cisco Technology, Inc.

Inventor： Shashidhar Gandham ,  Rohit Chandra Prasad ,  Abhishek Ranjan Singh ,  Navindra Yadav ,  Khawar Deen ,  Varun Sagar Malhotra

IPC: H04L12/24 ,  H04L12/26 ,  H04L12/801 ,  H04L29/06 ,  H04L29/08 ,  G06F16/00 ,  H04J3/00 ,  G06N99/00 ,  H04L12/701 ,  G06F9/455 ,  G06N20/00 ,  G06F16/29 ,  G06F16/248 ,  G06F16/28 ,  G06F16/9535 ,  G06F16/2457 ,  G06F21/55 ,  G06F21/56 ,  H04L12/851 ,  H04W84/18 ,  G06F21/53 ,  H04L12/723 ,  G06F3/0484 ,  H04L1/24 ,  H04W72/08 ,  H04L9/08 ,  H04L9/32 ,  H04J3/06 ,  H04J3/14 ,  H04L29/12 ,  H04L12/813 ,  H04L12/823 ,  H04L12/741 ,  H04L12/833 ,  H04L12/721 ,  G06F3/0482 ,  G06T11/20 ,  H04L12/841 ,  H04L12/725 ,  H04L12/715 ,  G06F16/16 ,  G06F16/17 ,  G06F16/11 ,  G06F16/13 ,  G06F16/174 ,  G06F16/23

Abstract: Systems, methods, and computer-readable media for identifying bogon addresses. A system can obtain an indication of address spaces in a network. The indication can be based on route advertisements transmitted by routers associated with the network. The system can receive a report generated by a capturing agent deployed on a host. The report can identify a flow captured by the capturing agent at the host. The system can identify a network address associated with the flow and, based on the indication of address spaces, the system can determine whether the network address is within the address spaces in the network. When the network address is not within the address spaces in the network, the system can determine that the network address is a bogon address. When the network address is within the address spaces in the network, the system can determine that the network address is not a bogon address.

公开(公告)号：US20190253330A1

公开(公告)日：2019-08-15

申请号：US16392950

申请日：2019-04-24

Applicant: Cisco Technology, Inc.

Inventor： Shashidhar Gandham ,  Rohit Chandra Prasad ,  Abhishek Ranjan Singh ,  Navindra Yadav ,  Khawar Deen ,  Varun Sagar Malhotra

IPC: H04L12/26 ,  G06N20/00 ,  G06F16/29 ,  G06F16/2457 ,  G06F16/9535 ,  G06F16/28 ,  G06F16/248 ,  G06F21/56 ,  G06F21/55 ,  H04L29/06 ,  H04L12/813 ,  H04L9/32 ,  H04L9/08 ,  H04L12/721 ,  G06F21/53 ,  H04L12/24 ,  H04L12/851 ,  H04L12/725 ,  H04L12/823 ,  H04L29/12 ,  H04J3/14 ,  H04J3/06 ,  H04W72/08 ,  H04L1/24 ,  H04L29/08 ,  G06F3/0484 ,  H04L12/723 ,  H04L12/833 ,  H04L12/741 ,  H04L12/801 ,  H04W84/18 ,  H04L12/715 ,  H04L12/841 ,  G06T11/20 ,  G06F3/0482 ,  G06F16/11 ,  G06F16/17 ,  G06F16/13 ,  G06N99/00 ,  G06F16/16 ,  G06F16/23 ,  G06F16/174 ,  G06F9/455

Abstract: Systems, methods, and computer-readable media for hierarchichal sharding of flows from sensors to collectors. A first collector can receive a first portion of a network flow from a first capturing agent and determine that a second portion of the network flow was not received from the first capturing agent. The first collector can then send the first portion of the network flow to a second collector. A third collector can receive the second portion of the network flow from a second capturing agent and determine that the third collector did not receive the first portion of the network flow. The third collector can then send the second portion of the network flow to the second collector. The second collector can then aggregate the first portion and second portion of the network flow to yield the entire portion of the network flow.