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.
Patent No.:
Date of Patent:
Mar. 08, 2011
Filed:
Aug. 30, 2005
Denis H. Deruijter, Harvard, MA (US);
Steve Onishi, Groton, MA (US);
Denis H. deRuijter, Harvard, MA (US);
Steve Onishi, Groton, MA (US);
Juniper Networks, Inc., Sunnyvale, CA (US);
Abstract
An intermediate device is described that reduces the number of signaling registration requests and responses flowing across a network. For example, a load reducing device intercepts the registration requests, filters a portion of the requests, and outputs autonomous response for each filtered registration request. The load reducing device forwards an unfiltered portion of the registration requests sufficient to maintain registration of the requesting device. The autonomous responses keep a logical pinhole in a firewall in an open state so that the registering device behind the firewall can receive session initiation invitations. At the same time, filtering the portion of the requests reduces the number of requests and responses that traverse any intermediate networks between the load reducing device and an intended recipient of the request.