port and react accordingly. In other words, auto-negotiation may “agree” upon a configuration that the cable cannot sustain; smart auto-sensing can detect this and adjust the link accordingly.
For example, smart auto-sensing can detect network problems, such as an unacceptably high error rate or a poor quality cable. If both ends of the link support 100/1000 Mbps auto-negotiation, then auto-sensing tunes the link to 100 Mbps to provide an error-free 100 Mbps connection to the network.
An SNMP Trap is sent every time a port is down-rated to a lower speed.
Conditions that affect smart auto-sensing:
■Smart auto-sensing will not operate on links that do not support auto-negotiation, or on links where one end is at a fixed speed. The link will reset to the higher speed of operation when the link is lost or the unit is power cycled.
■Smart auto-sensing can only be configured per unit and not on a per port basis.
