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:
May. 30, 2006
Filed:
Feb. 15, 2001
Carmel Chi Him Lau, Petaluma, CA (US);
Michael F. Davis, Penngrove, CA (US);
Thomas E. Black, Jr., Santa Rosa, CA (US);
Carmel Chi Him Lau, Petaluma, CA (US);
Michael F. Davis, Penngrove, CA (US);
Thomas E. Black, Jr., Santa Rosa, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
The present invention discloses a method and apparatus for preventing a layer-2 forwarding loop from being created within a network element (NE). Specifically, the present invention is used to prevent a loop from being formed within a NE by multiple data stitches for the same data circuit. The loops are prevented from being formed within the NE by running spanning tree on all but one of the multiple data stitches for a data circuit. The spanning tree blocks each of the data stitches on which it is run and thus only one data stitch remains and no loop is formed.