| 摘要 |
A network device including a port which auto-negotiates a data rate over a link also includes a traffic monitor which detects a condition denoting light or heavy traffic and causes a correspondingly lower or higher data rate to be selected for the link to reduce power consumption. The traffic monitoring may be performed by inspecting the occupancy of transmit and receive buffers in the device in relation to predetermined thresholds (fig 1, not shown). Applications include routers and switches in packet-based networks. Advantages include power saving.
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