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:
Nov. 04, 2008
Filed:
Sep. 28, 2004
Michael J. Beesley, Hillsborough, CA (US);
Kireeti Kompella, Los Altos, CA (US);
Ramalingam K. Anand, Los Altos Hills, CA (US);
Michael J. Beesley, Hillsborough, CA (US);
Kireeti Kompella, Los Altos, CA (US);
Ramalingam K. Anand, Los Altos Hills, CA (US);
Juniper Networks, Inc., Sunnyvale, CA (US);
Abstract
A network device, such as a router, utilizes a virtual interface to hide the presence of redundant backup physical interfaces from a router control unit. If traffic needs to be redirected from a primary physical interface, the router remaps the virtual interface to the backup physical interface without needing to update routes and select one or more alternative routes due to the need to redirect traffic. Instead, the router control unit redirects network traffic associated with the primary physical interface to the associated backup physical interface. In this manner, delays associated with route updating can be avoided, and a relatively seamless switchover can be achieved from the primary to the backup physical interface.