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Systems and methods for policy based integration to horizontally deployed WAN optimization appliances

  • US 9,871,853 B2
  • Filed: 02/17/2015
  • Issued: 01/16/2018
  • Est. Priority Date: 12/23/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • (a) receiving, by a device intermediary to a plurality of clients and one or more servers, a request from a client to a server, the request modified by a first Wide Area Network (WAN) optimization device prior to receipt by the device, the request comprising information in an option field of a transport layer protocol identifying that the first WAN optimization device modified the request;

    (b) forwarding, by the device, based on the information in the option field, the request to a second WAN optimization device via a second network path that is separate from a first network path over which the request was received by the device;

    (c) receiving, by the device, the request from and modified by the second WAN optimization device, the request comprising content identifying that the second WAN optimization device modified the request;

    (d) determining, by the device based on the content of the request identifying that the second WAN optimization device modified the request, that the request received from the second WAN optimization device has been modified by the second WAN optimization device and to transmit the request to the server instead of any WAN optimization device; and

    (e) transmitting, by the device, the request to the server responsive to determining that the request received from the second WAN optimization device has been modified by the second WAN optimization device and to transmit the request to the server instead of any WAN optimization device.

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