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:
Aug. 16, 2011
Filed:
Dec. 20, 2005
J. Kevin Frick, Raleigh, NC (US);
J. Kevin Frick, Raleigh, NC (US);
Extreme Networks, Inc., Santa Clara, CA (US);
Abstract
Methods, systems, and computer program products for sending and receiving frames associated with different VLANs over a secure layer 2 broadcast transport network are disclosed. According to one method, a layer 2 frame is received at a transmit port of a layer 2 forwarding device. The layer 2 frame is to be sent over a secure layer 2 broadcast transport network. A VLAN identifier corresponding to a first VLAN is extracted from the layer 2 frame. The first VLAN identifier is mapped to a second VLAN identifier used by the secure broadcast transport layer 2 network to identify the first VLAN. A portion of the layer 2 frame including the first VLAN identifier is encrypted. The layer 2 frame is transmitted over the secure layer 2 broadcast transport network with the second VLAN identifier in a cleartext portion of the frame.