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:
Jan. 26, 2016

Filed:

Oct. 16, 2014
Applicant:

At&t Intellectual Property, I, L.p., Atlanta, GA (US);

Inventors:

Mark A. Elias, Eastpointe, MI (US);

Robert P. Lowmaster, Bartlett, IL (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 12/715 (2013.01); H04L 12/723 (2013.01); H04M 7/00 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0272 (2013.01); H04L 45/04 (2013.01); H04L 45/50 (2013.01); H04L 65/1069 (2013.01); H04M 7/0078 (2013.01);
Abstract

Example methods and apparatus to form secure cross-VPN (virtual private network) communication sessions in multiprotocol label switching (MPLS)-based networks are disclosed. An example method comprises sending a first border gateway protocol route advertisement to a first provider edge router associated with a first one of two multiprotocol label switched-based virtual private networks in response to receiving a cross-virtual private network link setup request from an application server, the route advertisement comprising a flow-spec parameter, and the setup request identifying a communication path between two user devices associated with the first and second multiprotocol label switched-based virtual private networks, sending a second border gateway protocol route advertisement to a second provider edge router associated with the second multiprotocol label switched-based virtual private network, and restricting a communication session between the two user devices of the first and second multiprotocol label switched-based virtual private networks to a first protocol for a threshold period of time based on a restriction parameter shared by the communication path.


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