Does the ProCurve Switch 2224 support IEEE 802.3u auto-negotiation?
“The ProCurve Switch 2224 supports full IEEE 802.3u auto-negotiation, except for the 100Base-FX Transceiver Module. Note that the device connected to the Switch 2224 must be compliant with the IEEE 802.3u standard. A non-standard device may experience some problems. If the device is older, or is using pre-standard drivers, the device may have difficulty in auto-negotiating with the ProCurve Switch 2224. If you experience problems, you should check with the manufacturer of the device and if necessary, update the drivers for that device. Note: The HP Advancestack 100Base-FX Transceiver Module (product number J3193B), which is supported as an accessory in the switch, operates in full duplex mode only and uses flow control packets. This port will therefore not auto-negotiate and it is important to configure the device to which it connects with the same port parameters (that is: full duplex).