Troubleshooting guide

(Edition 3)
Summary of amendments
Location and title Changes
Login-related problems :
troubleshooting : login-related
problem : login
 The actions to be taken were changed.
Failures occurring when the Ring
Protocol functionality is used
 This subsection was added.
In addition to the above changes, minor editorial corrections were made.
(Edition 2)
Summary of amendments
Location and title Changes
Overview of failure analysis of the
Switch or a part of the Switch
 Some of the description of LEDs were changed.
Restoring information by using the
restore operation command not
possible
 The actions to be taken were changed.
Communication failures when using
IEEE 802.1X
 The actions to be taken were changed.
Communication failures occurring
when Web authentication is used
 The actions to be taken were changed.
Communication failures occurring
when MAC-based authentication is
used
 The actions to be taken were changed.
Communication failures when using
secure Wake-on-LAN [OP-WOL]
 The actions to be taken were changed.
Communication failures occurring
when uplink redundancy is used :
when uplink redundancy used :
troubleshooting communication
failures
 Items for analyzing failures were added.
 The actions to be taken were changed.
Power saving functionality failures  This subsection was added.
In addition to the above changes, minor editorial corrections were made.