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    SYSTEM AND METHOD FOR CONTINUOUS IN-LINE MONITORING OF DATA-CENTER TRAFFIC
    2.
    发明申请
    SYSTEM AND METHOD FOR CONTINUOUS IN-LINE MONITORING OF DATA-CENTER TRAFFIC 有权

    公开(公告)号：US20210281502A1

    公开(公告)日：2021-09-09

    申请号：US17329288

    申请日：2021-05-25

    Applicant: Cisco Technology, Inc.

    Inventor： Smita Rai ,  Ajay Modi ,  Krishna Doddapaneni ,  Kit Chiu Chu

    IPC: H04L12/26

    Abstract: Disclosed is a method for continuous in-line monitoring of data-centric traffic to guarantee application performance. The method includes, in each switch of a plurality of switches in a network fabric, grouping all packets entering each respective switch of the plurality of switches based on either 5-tuple applications or EPG based applications, collecting performance statistics at every hop in the network fabric across all flows in-line in a flow table maintained in each respective switch and periodically exporting the performance statistics to analysis module.

    System and method for continuous in-line monitoring of data-center traffic
    3.
    发明授权
    System and method for continuous in-line monitoring of data-center traffic 有权

    公开(公告)号：US11038788B2

    公开(公告)日：2021-06-15

    申请号：US16557355

    申请日：2019-08-30

    Applicant: Cisco Technology, Inc.

    Inventor： Smita Rai ,  Ajay Modi ,  Krishna Doddapaneni ,  Kit Chiu Chu

    IPC: H04W56/00 ,  H04L12/26

    Abstract: Disclosed is a method for continuous in-line monitoring of data-centric traffic to guarantee application performance. The method includes, in each switch of a plurality of switches in a network fabric, grouping all packets entering each respective switch of the plurality of switches based on either 5-tuple applications or EPG based applications, collecting performance statistics at every hop in the network fabric across all flows in—line in a flow table maintained in each respective switch and periodically exporting the performance statistics to analysis module.

    System and method for continuous in-line monitoring of data-center traffic
    5.
    发明授权
    System and method for continuous in-line monitoring of data-center traffic 有权

    公开(公告)号：US10404564B2

    公开(公告)日：2019-09-03

    申请号：US15410595

    申请日：2017-01-19

    Applicant: Cisco Technology, Inc.

    Inventor： Smita Rai ,  Ajay Modi ,  Krishna Doddapaneni ,  Kit Chiu Chu

    IPC: H04L12/26

    Abstract: Disclosed is a method for continuous in-line monitoring of data-centric traffic to guarantee application performance. The method includes, in each switch of a plurality of switches in a network fabric, grouping all packets entering each respective switch of the plurality of switches based on either 5-tuple applications or EPG based applications, collecting performance statistics at every hop in the network fabric across all flows in-line in a flow table maintained in each respective switch and periodically exporting the performance statistics to analysis module.

    Technologies for event based debugging of data center switching
    7.
    发明授权
    Technologies for event based debugging of data center switching 有权

    公开(公告)号：US10142168B2

    公开(公告)日：2018-11-27

    申请号：US15221538

    申请日：2016-07-27

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Ramanan Vaidyanathan ,  Ajay Modi ,  Azeem Suleman ,  Krishna Doddapaneni ,  Sarang Dharmapurikar ,  Ganlin Wu

    IPC: H04L12/24 ,  H04L29/06 ,  H04L12/947 ,  H04B17/17 ,  G06F11/07 ,  H04L12/26

    Abstract: Systems, methods, and computer-readable media for improving debugging and troubleshooting of datacenter networks, and more particularly improving the speed of forwarding/data path related problems without going into ASIC level debugging. A switch could, for example, have a processor which communicates with an ASIC. The processor can receive flow information and a notification from the ASIC, the notification indicating a predefined error condition has been identified in a packet. The processor can modify the ASIC programming based on the notification, such that the ASIC records additional, more-detailed, flow information for the switch. The processor can then receive, from the modified ASIC, the additional flow information. The additional flow information can then be used (either by the processor or by an operator) to identify the exact reason for the errors in the flow path.

    Support for flooding in encapsulation and inter-VLAN communication via proxy-ARP
    9.
    发明授权
    Support for flooding in encapsulation and inter-VLAN communication via proxy-ARP 有权

    公开(公告)号：US11025536B1

    公开(公告)日：2021-06-01

    申请号：US16040291

    申请日：2018-07-19

    Applicant: Cisco Technology, Inc.

    Inventor： Gautam Venkataramanan ,  Umamaheswararao Karyampudi ,  Eddie Tan ,  Ajay Modi

    IPC: H04L12/721 ,  H04L12/46 ,  H04L12/741 ,  H04L12/24 ,  H04L29/12

    Abstract: A first leaf switch may receive from a first host, a request for a second host that is not known at the first leaf switch. The first host may be within a first End Point Group (EPG) and the second host being within a second EPG. The first EPG and the second EPG may be in a Bridge Domain (BD). Flood in encapsulation may be enabled for the first EPG and for the second EPG. Next, the first leaf switch may flood the request locally in the first EPG and to a spine switch with a VNID of the first EPG. The spine switch may then flood the request to a second leaf switch where the BD is present. The second leaf switch may send a glean request for the second host, receive, in response to sending the glean request, a reply, and learn the second host locally in response to receiving the reply.

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