Cabletron Systems 2H28-08R manual Troubleshooting Checklist

Troubleshooting Checklist

4.3TROUBLESHOOTING CHECKLIST

If the 2H28-08R is not working properly, refer to Table 4-4for a checklist of possible problems, causes, and recommended actions to resolve the problem.

Table 4-4 Troubleshooting Checklist

Problem	Possible Cause	Recommended Action
All LEDs are OFF.	Loss of power.	Check for proper connection
		of the power cables and
		access to live outlets.
	Installed improperly.	Check the installation. See
		Chapter 3 for details.
No Local	Autobaud is enabled.	Press ENTER (RETURN) key
Management		(may take up to four times).
Password screen.
	Terminal setup is not	Refer to Chapter 5 for proper
	correct.	setup procedures.
	Improper console cable	Refer to Appendix A for
	used.	proper console port pinouts.
Cannot contact the	Using incorrect	Refer to Chapter 5
2H28-08R from	Community Name.	for Community Name setup.
in-band
	The 2H28-08R does not	Refer to Chapter 5 for IP
management.
	have an IP address	address assignment
	assigned.	procedure.
	Port is disabled.	Enable port.
	No link to device.	Check link to device.
Port(s) goes into	The 2H28-08R detected	1. Review network design and
standby for no	a loop condition.	delete unnecessary loops.
apparent reason.		2. Contact the Cabletron
		Systems Global Call Center
		if problem still exists.
User parameters (IP	Mode switch (7), NVRAM	1. Reenter the lost
address, Device and	Reset, was changed	parameters as necessary.
Module name, etc.)	sometime before either	2. Call the Cabletron Systems
were lost when the	cycling power or
		Global Call Center if
2H28-08R power	pressing the RESET
		problem still exists.
was cycled or the	button causing the
front panel RESET	user-entered parameters
button was pressed.	to reset to factory default
	settings.

2H28-08R SmartSwitch 2208 User’s Guide 4-5