H165120:  10/100 ETHERJET PCI ADAPTER: POOR PERFORMANCE, DISCONNECTS


 SYMPTOM:

 When running the network in Full Duplex mode, the network may
 be running slowly, or network disconnection's may occur.

 PROBLEM ISOLATION AIDS:

 - The system is a Netfinity 5500 server,  Type 8660, any Model.

 - The system is configured with an IBM 10/100 EtherJet PCI
 Adapter, P/N 08L2549.

 - The system has the described symptom.

 FIX:

 Manually turn on Full Duplex mode instead of allowing the
 adapter to auto-negotiate.  You will need to manually set Full
 Duplex in the network switch, as well as in the Server and the
 Client device driver for the adapter.

 DETAILS:

 The problem is caused by a network switch that does not support
 auto negotiation mode. As with any network adapter, if the hub
 or switch is configured for full duplex and does not support
 auto negotiation, then you must use the device driver manual
 overrides for proper operation in full duplex mode.



DATE: December 7, 1998