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:
Feb. 02, 2010
Filed:
Apr. 10, 2006
Applicant:
Xuguang Yang, Sunnyvale, CA (US);
Inventor:
Xuguang Yang, Sunnyvale, CA (US);
Assignee:
Extreme Networks, Inc., Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/173 (2006.01);
U.S. Cl.
CPC ...
Abstract
A network includes a virtual local area network (VLAN) and multiple spanning tree protocol domains (STPDs). Switches in the network receive messages from other switches and select one path for continued transmission of data based on the content of the messages. The content of each message identifies the path through which the message was transmitted. After one path is selected, all other paths are blocked. Once paths are blocked, no messages are transmitted through those paths to the switch. This eliminates redundant paths and provides a loop-free inter-domain topology throughout the network.