Patent ID: 6718383
Filing Date: 2004-04-06
Classification: H04L

Abstract:
A method for maintaining high availability in a computer network utilizing virtual Internet Protocol (IP) addresses, said method comprising:adding a first High Availability Networking (HAnet) mechanism to a first node of said computer network, wherein said HAnet mechanism operates within an application layer of an architectural model of said computer network; adding a second network interface to said computer network; capturing a first virtual IP address configuration corresponding to a first network interface of said first node, wherein said first virtual IP address configuration is captured on startup; monitoring a first network connection corresponding to said first network interface, wherein said monitoring is performed by said first HAnet mechanism; detecting a failure of said first network connection, wherein said failure is detected by said first HAnet mechanism; and performing a failover from said first network connection to said second network connection in response to detecting said failure, wherein said failover is performed by said first HAnet mechanism.