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:
Jan. 17, 2012
Filed:
Sep. 17, 2008
Hiroyuki Sasaki, Kawasaki, JP;
Masayuki Sato, Kawasaki, JP;
Hiroyuki Sasaki, Kawasaki, JP;
Masayuki Sato, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A packet relay method and device in which even in the presence of a relay device between transmitting and receiving devices, a normality of a protection route can be surely confirmed is provided; A specific source address or destination address are registered, and when a route normality confirmation packet having the source address or destination address is received, the packet is transmitted to a protection route regardless of a hash operation; The registering can include link aggregation information in addition to the source address or destination address and the transmitting is made when the route normality confirmation packet consistent with both of the source address or destination address and the link aggregation information is received.