IBM Auto 16/4 Token Ring ISA Adapter
,

,Network Devices

This device driver is designed to run on an Intel-based computer running OPENSTEP for Mach Release 4.1.

Supported Hardware
	IBM Auto 16/4 Token Ring ISA Adapter

This driver supports the IBM Auto 16/4 Token Ring ISA Adapter.
The driver will automatically switch the adapter to the correct ring speed if autosense mode is enabled.

Installing the Adapter  
·  	Install the adapter into the system and run the LANAID program provided with the adapter to configure the adapter resources. Select resources which do not conflict with other adapters in the system and record your choices. Additionally, enable16-bit mode, and enable autosense mode if you would like the ring speed to be set automatically. Consult the adapter documentation for more information.
	Note:
	During the loading of LANAID, you may be presented with:

		Invalid media type reading drive C
		Abort, retry, fail?

	Enter f to fail the request each time it appears.

Configuration
·  	Log in as root and run Configure to add the adapter to the system.  
· 	Click the Network Devices icon at the top of Configure's "Summary of Devices" window. In the Add Network Devices panel that opens, click the "Show All Installed Drivers" radio button if it is not already highlighted.
· 	Select "IBM Auto 16/4 Token Ring ISA Adapter" from the list and click Add. 
· 	Choose the same Port Address, IRQ Level, Mapped Memory range, and Mapped ROM range that you selected previously in step 1. 
· 	Click the "More..." button to change the Ring Speed, ETR, and MTU settings.
	Ring Speed
	The adapter uses this value when attempting to enter the ring. If the ring speed is incorrect, the driver will abort unless autosense mode is enabled. If autosense is enabled, the driver will switch the adapter speed setting and enter the ring at the alternate speed.
	ETR
	Early Token Release is an option available for token rings operating at 16 Mbps and results in improved performance. Leave this value enabled unless you know that your token ring network does not allow ETR.
	MTU
	The Maximum Transfer Unit is a system installation defined value corresponding to the maximum size of the data portion of a token ring packet. Consult your system administrator to determine what the correct value should be. If you are only communicating with other NeXTSTEP systems, you may leave the value set to the default, 8100.
· 	Click Done, then click Save, and quit Configure.

,
	
See also

·	"Add a Device" in Configure's on-line help.

·	See NeXTanswer 1824 for general information on installing and configuring device drivers.