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Systems and methods for adjusting the maximum transmission unit by an intermediary device

  • US 8,014,421 B2
  • Filed: 09/15/2009
  • Issued: 09/06/2011
  • Est. Priority Date: 07/23/2004
  • Status: Active Grant
First Claim
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1. A method for adjusting a maximum transmission unit of a plurality of network packets, the method comprising:

  • establishing, by an intermediary deployed between a client and a server, a connection between the client and the server, the intermediary performing encryption of a plurality of network packets for the connection traversing the intermediary;

    receiving, by the intermediary, a plurality of network packets via the connection from the server destined for the client, the plurality of network packets transmitted to the server in accordance with a maximum transmission unit;

    determining, by the intermediary, an encryption overhead for encryption performed by the intermediary on each of the plurality of network packets;

    adjusting, by the intermediary, the maximum transmission unit by at least a size of an encryption overhead of a network packet of the plurality of network packets of the connection having a largest encryption overhead; and

    transmitting, by the intermediary, the plurality of network packets to the client via the connection in accordance with the adjusted maximum transmission unit.

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