![](http://pdfasset.owneriq.net/e/d2/ed24612a-bdbf-4c36-a5dc-e04c6143570d/ed24612a-bdbf-4c36-a5dc-e04c6143570d-bg17.png)
19
Port Speed & Duplex Mode
After plugging the selected cable to a specific port, the
system uses auto-negotiation to determine the transmission
mode for any new twisted-pair connection:
If the attached device does not support auto-negotiation or
has auto-negotiation disabled, an auto-sensing process is
initiated to select the speed and set the duplex mode to half-
duplex.