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. 11, 2008
Filed:
May. 13, 2003
Jimmy Ervin, Raleigh, NC (US);
Praveen Bhagwatula, Rohnert Park, CA (US);
Russell Gardo, Raleigh, NC (US);
Charles Allen Carriker, Cary, NC (US);
Thomas E. Black, Jr., Santa Rose, CA (US);
Steven Faulkner, Cary, NC (US);
Jimmy Ervin, Raleigh, NC (US);
Praveen Bhagwatula, Rohnert Park, CA (US);
Russell Gardo, Raleigh, NC (US);
Charles Allen Carriker, Cary, NC (US);
Thomas E. Black, Jr., Santa Rose, CA (US);
Steven Faulkner, Cary, NC (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method for preventing loops in a ring topology of a computer network is disclosed. The method includes receiving a packet at a node on a shared packet ring and inserting a header containing an ID identifying the node at which the packet was received on the ring as an originating node. The packet is forwarded onto the ring and the ID is checked when received on a node. The packet is dropped if the ID identifies the node as the originating node.