SMC Networks SMC6724L3 manual Appendix a Troubleshooting

APPENDIX A

TROUBLESHOOTING

	Troubleshooting Chart
Symptom	Action
Cannot connect using	• Be sure you have configured the agent with a valid IP
Telnet, Web browser, or	address, subnet mask and default gateway.
SNMP software	• If you are trying to connect to the agent via the IP address for
	a tagged VLAN group, your management station must
	include the appropriate tag in its transmitted frames.
	• Check that you have a valid network connection to the
	switch and that the port you are using has not been disabled.
	• Check network cabling between the management station and
	the switch.
	• If you cannot connect using Telnet, you may have exceeded
	the maximum number of concurrent Telnet sessions
	permitted. Try connecting again at a later time.
Cannot access	• Be sure you have set the terminal emulator program to
the on-board	VT100 compatible, 8 data bits, 1 stop bit, no parity and 9600
configuration program	bps.
via a serial port	• Check that the null-modem serial cable conforms to the
connection
	pin-out connections provided in Appendix B.
Forgot or lost the	• Reinstall the switch defaults. Make a direct connection to the
password	switch’s console port and power cycle the switch.
	Immediately after powering on, press <Ctrl><u> to access
	the system file menu. Select <D> to delete all user-defined
	configuration files. Press <Q> to boot the switch.

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