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:
Aug. 28, 2012
Filed:
Oct. 13, 2006
Chandrashekhar Appanna, Cupertino, CA (US);
John G. Scudder, Ann Arbor, MI (US);
Chandrashekhar Appanna, Cupertino, CA (US);
John G. Scudder, Ann Arbor, MI (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A checkpointing approach enables BGP peers to reduce the number of UPDATE messages that are exchanged and processed after a router restarts. A router receives update messages to update routing information for the one or more other devices, wherein each of the update messages includes a checkpoint marker and a route. The router stores the route in a checkpoint repository and stores the checkpoint markers in association with information identifying the other routers from which the checkpoint markers were received. In response to a restart event, the router sends each of the stored checkpoint markers to respective other devices and receives from the respective other devices only route updates that occurred later in time than the checkpoint markers.