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:
Oct. 11, 2005
Filed:
Feb. 28, 2001
Michael Yip, Sunnyvale, CA (US);
Apoorva Bhatt, Belmont, CA (US);
Michael Yip, Sunnyvale, CA (US);
Apoorva Bhatt, Belmont, CA (US);
Extreme Networks, Inc., Santa Clara, CA (US);
Abstract
A method for electing a master router in a virtual router network by obtaining a tracking parameter for each of the routers participating in a virtual router network. A priority value is assigned to each of the plurality of routers based on the tracking parameter and reported to each router at periodic intervals. The router with the highest priority value is elected, or re-elected, as the new master. The tracking parameters include a ping tracking parameter obtained by pinging the active routes listed in the routing table for each of the of routers participating in the virtual router network, an environmental tracking parameter obtained by inspecting the operating characteristics outside of the control of the router, including operating temperature and power supply status, and a diagnostic tracking parameter obtained by inspecting the diagnostic data representing operating characteristics within the control of the router, including an operability status of the router's circuitry and channels and a status of the packet-level connectivity to the physical layer backplane network.