Intel 480T User Manual page 323

A P P E N D I X B
The Telnet workstation cannot access the device:
Check that the device IP address, subnet mask and default router are
correctly configured, and that the device has been reset. Ensure that
you enter the IP address of the switch correctly when invoking the
Telnet facility. Check that Telnet access was not disabled for the
switch. If you attempt to log in and the maximum number of Telnet
sessions are being used, you should receive an error message
indicating so.
Traps are not received by the SNMP Network Manager:
Check that the SNMP Network Manager's IP address and
community string are correctly configured, and that the IP address
of the Trap Receiver is configured properly on the system.
The SNMP Network Manager or Telnet workstation can no
longer access the device:
Check that Telnet access or SNMP access is enabled.
Check that the port through which you are trying to access the
device has not been disabled. If it is enabled, check the connections
and network cabling at the port.
Check that the port through which you are trying to access the
device is in a correctly configured VLAN.
Try accessing the device through a different port. If you can now
access the device, a problem with the original port is indicated. Re-
examine the connections and cabling.
A network problem may be preventing you from accessing the
device over the network. Try accessing the device through the
console port.
Check that the community strings configured for the device and the
Network Manager are the same.
Check that SNMP access was not disabled for the system.
Permanent entries remain in the FDB:
If you have made a permanent entry in the FDB (which requires you
to specify the VLAN to which it belongs and then delete the
VLAN), the FDB entry will remain. Though causing no harm, you
must manually delete the entry from the FDB if you want to remove
it.
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