Install Guide

Lock CONFIGURATION Mode
Dell EMC Networking OS allows multiple users to make configurations at the same time. You can lock CONFIGURATION mode
so that only one user can be in CONFIGURATION mode at any time (Message 2).
You can set two types of lockst: auto and manual.
● Set auto-lock using the configuration mode exclusive auto command from CONFIGURATION mode. When you
set auto-lock, every time a user is in CONFIGURATION mode, all other users are denied access. This means that you can exit
to EXEC Privilege mode, and re-enter CONFIGURATION mode without having to set the lock again.
● Set manual lock using the configure terminal lock command from CONFIGURATION mode. When you configure a
manual lock, which is the default, you must enter this command each time you want to enter CONFIGURATION mode and
deny access to others.
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
DellEMC(conf)#configuration mode exclusive auto
BATMAN(conf)#exit
3d23h35m: %RPM0-P:CP %SYS-5-CONFIG_I: Configured from console by console
DellEMC#config
! Locks configuration mode exclusively.
DellEMC(conf)#
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.
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 ).
NOTE:
The CONFIGURATION mode lock corresponds to a VTY session, not a user. Therefore, if you configure a lock
and then exit CONFIGURATION mode, and another user enters CONFIGURATION mode, when you attempt to re-enter
CONFIGURATION mode, you are denied access even though you are the one that configured the lock.
NOTE: If your session times out and you return to EXEC mode, the CONFIGURATION mode lock is unconfigured.
LPC Bus Quality Degradation
LPC Bus Quality Analyzer (LBQA) runs on the system that make use of the LPC bus. It constantly monitors the LPC bus and
alerts or warns the user using following methods when it detects signal degradation:
1. The system displays a high priority syslog message. The text of this syslog is CPU Clock signal has degraded
below acceptable threshold on stack-unit <stack-unit-number> with service tag <service
tag>. Please contact Technical Support. On chassis platforms, the text is 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 show every 30 minutes. An
SNMP trap with this information is also generated 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.
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.
Management
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