Patent ID: 8972602
Filing Date: 2015-03-03
Classification: H04L

Abstract:
1. A method of using routes for traffic distribution across a cluster of intermediary devices, the method comprising: (a) advertising, by each intermediary device of a cluster comprising a plurality of intermediary devices, via a routing protocol to a router, a corresponding internet protocol (IP) address of a virtual server executing on each intermediary device with a predetermined number of metrics; (b) determining, by each intermediary device that is active, that a first intermediary device of the cluster is down; (c) re-advertising, by each intermediary device that is active and responsive to the determination, the corresponding IP address of the virtual server with a reduced number of metrics; and (d) re-advertising, by each intermediary device that is active responsive to waiting a predetermined time period after re-advertising the corresponding IP address of the virtual server with the reduced number of metrics, the corresponding IP address of the virtual server with the predetermined number of metrics.