Network router failover mechanism

Patent 7194653 Issued on March 20, 2007. Estimated Expiration Date:

November 4, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

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Inventors

Assignee

Cisco Technology, Inc.

Application

No. 10287386 filed on 11/04/2002

US Classes:

714/4, Of network370/219, Standby switch709/239, Alternate path routing714/43, Bus, I/O channel, or network path component fault709/238COMPUTER-TO-COMPUTER DATA ROUTING

Examiners

Primary: Baderman, Scott
Assistant: Contino, Paul

Attorney, Agent or Firm

Schwegman, Lundberg, Woessner & Kluth P.A.

International Class

G06F 11/00

Abstract

A method, system, apparatus, and signal-bearing media for determining connectivity information for routers running on servers that are attached to a device. A router is resigned in favor of a corresponding router at another server when the corresponding router has better connectivity to the device, where partial connectivity is better than no connectivity, and full connectivity is better than partial connectivity.