Administrator Guide

NOTE: If your session times out and you return to EXEC mode, the CONFIGURATION mode lock is unconfigured.
Viewing the Configuration Lock Status
If you attempt to enter CONFIGURATION mode when another user has locked it, you may view which user has control of
CONFIGURATION mode using the show configuration lock command from EXEC Privilege mode.
You can then send any user a message using the send command from EXEC Privilege mode. Alternatively, you can clear any line
using the clear command from EXEC Privilege mode. If you clear a console session, the user is returned to EXEC mode.
Example of Locking CONFIGURATION Mode for Single-User Access
Dell(conf)#configuration mode exclusive auto
BATMAN(conf)#exit
3d23h35m: %SYSTEM-P:CP %SYS-5-CONFIG_I: Configured from console by console
Dell#config
! Locks configuration mode exclusively.
Dell(conf)#
Message 1: Configuration mode Locked Error
If another user attempts to enter CONFIGURATION mode while a lock is in place, the following appears on their terminal
(message 1):
% Error: User "" on line console0 is in exclusive configuration mode
Message 2 Cannot Lock CONFIGURATION mode Error
If any user is already in CONFIGURATION mode when while a lock is in place, the following appears on their terminal (message
2):
% Error: Can't lock configuration mode exclusively since the following users are
currently configuring the system: User "admin" on line vty1 ( 10.1.1.1 )
LPC Bus Quality Degradation
LPC Bus Quality Analyzer (LBQA) will run on Intel C2000 (Rangeley family) based platforms that make use of the LPC bus. The
canary code that runs along with the pollers will constantly monitor the LPC bus and once it detects signal degradation, it ,alerts
or warns the user via following methods:
1. A high priority syslog is issued. The text of this syslog in TOR platforms would be “CPU Clock signal has degraded below
acceptable threshold on stack-unit <stack-unit-number> with service tag <service tag>. Please contact Technical Support".
In chassis platforms the text would be “CPU Clock signal has degraded below acceptable threshold on Line card <line card
number> with service tag <service tag>. Please contact Technical Support". This syslog continues to be emitted every 30
minutes. An SNMP trap with this information will also be generated once every hour.
2. If SupportAssist is enabled - it sends the event message to the global SupportAssist server immediately and there after once
in two days, so Dell can assist in pro-actively notifying and assisting customers when this condition is hit.
3. System Status LED changes to an alarm state, blinking amber for S3048–ON, S6100–ON and Z9100–ON, and solid amber
for C9000. It is not possible to suppress this LED pattern until the unit is switched off (for RMA).
4. The switch (control/management/data plane) continues to be active.
NOTE:
This is true even if the unit in question is the master (in a HA chassis environment – as in the case of RPM) or a
Stack master or standby (as in case of S3048-ON).
A new CLI command has been introduced to disable / re-enable this feature. The details are given below:
Syntax
enable cpu-clock-monitor
To disable this feature, use the no enable cpu-clock-monitor command.
Parameters None
Defaults Enabled
Command Modes CONFIGURATION
74 Switch Management