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. 22, 2011
Filed:
May. 30, 2003
Edgar C. Alcazaren, Kansas City, MO (US);
Bruce Hoffman, Overland Park, KS (US);
Dave Polson, Olathe, KS (US);
Philip D. King, Stilwell, KS (US);
Edgar C. Alcazaren, Kansas City, MO (US);
Bruce Hoffman, Overland Park, KS (US);
Dave Polson, Olathe, KS (US);
Philip D. King, Stilwell, KS (US);
Sprint Communications Company L.P., Overland Park, KS (US);
Abstract
A communication network architecture comprises an access tier including access packet switches coupled to users, a backbone tier including hub packet switches coupled to one another, and a transit tier including transit packet switches coupling the access tier to the backbone tier. The access packet switches are coupled to the transit tier by physically diverse access communication trunks. The transit packet switches are coupled to the backbone tier by physically diverse transit communication trunks. OSI layer one protection is disabled between the access tier and the transit tier and is disabled between the transit tier and the backbone tier. OSI layer two protection is enabled between the access tier and the transit tier and is enabled between the transit tier and the backbone tier. In some examples, a control system selects protection schemes for selected communication trunks and directs the network elements to implement the selected protection schemes on the selected communication trunks.