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:
Jun. 09, 2015

Filed:

Jan. 30, 2013
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Daniel G. Wing, San Jose, CA (US);

Cullen Jennings, Santa Cruz, CA (US);

Jonathan D. Rosenberg, Freehold, NJ (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); H04L 29/12 (2006.01);
U.S. Cl.
CPC ...
H04L 29/12066 (2013.01); H04L 29/12386 (2013.01); H04L 29/12528 (2013.01); H04L 61/2521 (2013.01); H04L 61/2575 (2013.01);
Abstract

In one embodiment, an endpoint elicits a pattern of STUN responses to identify security devices located on a call path. The endpoint then uses address information from the identified security devices to establish an efficient media flow with a remote endpoint. The endpoint can optimize the number of network devices and network paths that process the endpoint's keepalive message. Additionally, the endpoint may request custom inactivity timeouts with each of the identified security devices for reducing bandwidth consumed by keepalive traffic.


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