| 摘要 |
PURPOSE: A zero packet loss energy efficient ethernet link transition via driver fast failover is provided to improve the high efficiency by including a low speed main adaptor and a high speed sub adaptor. CONSTITUTION: A zero packet loss energy efficient ethernet link transition via driver fast failover uses a primary adapter running at low speed with low energy usage and a secondary adapter that is disabled(502). This default configuration is used during periods of low link utilization. When system or input/output load is such that high speed is required, then the mechanism enables the secondary adapter to its highest supported link speed(506). All transmit traffic in progress running over the primary adapter will complete, and upon completion, the driver generates an address resolution request and sends the request over the secondary adapter(508). After this process completes, the primary adapter transitions to link down and zero packet loss transition completes(512). |
