When the 3C980-TX Server NIC is installed in the secondary PCI bus,
the machine may hang intermittently. Symptoms include a locked-up mouse pointer, steady hourglass, or the inability to launch a program. This problem has
not been observed on other models of the NetServer line. 3Com is currently
working with HP to resolve this issue.
Action: Install the 3C980-TX Server NIC on the primary PCI bus.
Using a SNI machine with the 82440LX chip set running Netware 4.1,
During testing 3Com encountered incompatibilities with our 3C980
NIC and the Gateway E-3000 series PC when loading our DOS
diagnostics program. 3Com suggests using our Windows based
diagnostics if you encounter this problem. The Windows diagnostics
have been shown to work without error.
Microsoft Windows NT 4.0 Considerations
=======================================
Services Failing To Start
-------------------------
Some services may fail to start in a server configured with a large number of VLANs. The services that fail to start can be started manually from the Control Panel/Services application.
Delay in System Start Up With Multiple VLANs Configured
In general, start up time increases with each NIC and VLAN added to the system
Node Address Override For VLAN
------------------------------
When overriding the Node address (MAC address) in the registry, note that only the most significant 11 Hex digits can be user assigned since the last (least significant) digit is assigned by the driver. Node address override is only valid for the first VNIC to load.
Table 0-1 shows the relationship between VLANs and the node address of the VNIC.
When using VLANs, 3Com recommends that the switch be set at full-duplex or the maximum running speed to ensure optimal LAN performance.
Windows 95 support
-------------------
The 3C980-TX Server NIC is not supported on Windows 95 systems. The Windows NT driver runs on a Windows 95 machine, but VLAN and RSL features are disabled.
