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. 20, 2014
Filed:
Aug. 17, 2004
Sitaram Dontu, Sunnyvale, CA (US);
Norman W. Finn, Livermore, CA (US);
Nelson B. D'souza, Cupertino, CA (US);
Sitaram Dontu, Sunnyvale, CA (US);
Norman W. Finn, Livermore, CA (US);
Nelson B. D'Souza, Cupertino, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Various methods and systems for preventing erroneous link aggregation due to component relocation are disclosed. Such methods include a method for changing the identifier used by a network device and communicating the identifier change to a peer network device without disrupting an aggregated link. In one embodiment, a method involves detecting an identifier change and sending a Port Aggregation Protocol (PAgP) protocol data unit (PDU) that includes a new identifier and information. The information indicates the identifier change. The new identifier identifies a network device subsequent to the identifier change. Another embodiment of a method involves detecting an identifier change and, subsequent to the identifier change, sending a link aggregation protocol PDU that includes an 'old device identifier' field dedicated to conveying an old identifier. The old identifier identifies a network device prior to the identifier change.