The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 09, 2014

Filed:

Jul. 08, 2010
Applicants:

Jonathan Chen, Santa Clara, CA (US);

Saxon Amdahl, Mountain View, CA (US);

Andrey Shigapov, Fremont, CA (US);

Inventors:

Jonathan Chen, Santa Clara, CA (US);

Saxon Amdahl, Mountain View, CA (US);

Andrey Shigapov, Fremont, CA (US);

Assignee:

F5 Networks, Inc., Seattle, WA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 29/06 (2006.01); H04L 12/46 (2006.01);
U.S. Cl.
CPC ...
H04L 12/4633 (2013.01); H04L 29/06612 (2013.01); H04L 63/0281 (2013.01); H04L 63/0272 (2013.01); H04L 29/06551 (2013.01); H04L 63/029 (2013.01);
Abstract

A system and method for improving TCP performance in a L2 tunneling environment by snooping TCP/IP packets from the tunnel interface, terminating TCP locally and proxying TCP data in separate TCP connections. In particular, the system and method detects an encapsulated outgoing packet utilizing a Layer 2 tunneling protocol, processes a Point to Point Protocol layer in the outgoing packet to establishing Layer 2 tunneling protocol for a connection. The system and method also removes the Point to Point Protocol layer from the outgoing packet and inspects the outgoing packet for TCP information in the packet. The system and method forwards the outgoing packet to a locally driven application protocol path if TCP information is present, wherein the outgoing packet is encapsulated in association with the application protocol path.


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