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:
Apr. 24, 2012
Filed:
Aug. 28, 2007
Mohamed Khalid, Cary, NC (US);
Khalil Jabr, Austin, TX (US);
Rajiv Asati, Morrisville, NC (US);
Warren Scott Wainner, Potomac Falls, VA (US);
Scott Thomas Fanning, Los Gatos, CA (US);
Mohamed Khalid, Cary, NC (US);
Khalil Jabr, Austin, TX (US);
Rajiv Asati, Morrisville, NC (US);
Warren Scott Wainner, Potomac Falls, VA (US);
Scott Thomas Fanning, Los Gatos, CA (US);
CISCO TECHNOLOGY, Inc., San Jose, CA (US);
Abstract
One embodiment provides a method to interconnect virtual network segments (VNETs) defined for a local-area network (LAN) infrastructure separated by a wide-area network infrastructure. The technique involves the routing device at the LAN-WAN interconnection points to impose or dispose the VNET-shim, which encodes the VNET-id information in a Layer 4 portion of the packet. In a data plane, a new IP protocol value may be used to signify the presence of the VNET-shim followed by cryptography specific information in an IP packet. In a control plane, the routing protocol is expanded to exchange the routing information along with the VNET information.