3Com 3CR990SVR95, 3CR990-TX-97, 3CR990-TX-95, 3CR990SVR97 manual All

Overview 115

Option	Description (continued)	Settings
Media Type	Determines the type of media your network is	■	AUTO SELECT
	using.	■	100BASE-TX
	■ Auto Select allows the NIC to automatically
			(100 Mbs)
	select the Media Type for you.	■	10BASE-T
	■ If you set the NIC Duplex setting to
			(10 Mbs)
	Auto Select, the Media Type is
	automatically set to Auto Select.
	■ If you set the NIC Duplex setting manually,
	you must set the Media Type setting
	manually.
	Note: If you are running Windows 2000,
	changes made to the Media Type setting
	though the 3Com NIC Diagnostics are not
	reflected in the registry unless you also
	change the Media Select property setting in
	Windows 2000:
	1. In the Device Manager window,
	double-click Network adapters.
	2. Right-click the 3CR990 NIC and select
	Properties.
	3. Select the Advanced tab.
	4. Select Media Select in the property list, and
	make the appropriate setting change in the
	Value list.
Self Healing	Monitors firmware heartbeat and interrupt stalls,	■	ENABLED
	and tries to automatically reset the NIC.	■	Disabled
	Also monitors link status and reports changes.
Self Healing	Checks for transmit/receive errors and tries to	■	DISABLED
Enhanced	recover.	■	Enabled
Error Tolerance	Specifies threshold levels fortransmit/receive	■	Low
	errors. An RSL failover or NIC reset occurs	■	MEDIUM
	when the threshold is exceeded during the
			High
	sampling period.	■
	■ Low = 5 of each error category
	■ Medium = 50 of each error category
	■ High = 100 of each error category
Alert Type	Enabled alert types are reported to the	■	Off
(Windows NT)	Windows System Events monitor.	■	Information
		■	Warning
		■	Error
		■	ALL