Users Guide

You can change this default behavior by switching to Transaction-Based Conguration mode. To switch to Transaction-Based Conguration
mode, use the start transaction command. When you switch to the Transaction-Based Conguration mode and update the
candidate conguration, changes to the candidate conguration are not added to the running conguration until you commit them to
activate the conguration. The start transaction command applies only to the current session. Changing the conguration mode of
the current session to the Transaction-Based Conguration mode does not aect the conguration mode of other CLI sessions.
• After you explicitly enter the commit command to save changes to the candidate conguration, the session switches back to the
default behavior of automatically saving the conguration changes to the running conguration.
• When a session terminates while in the Transaction-Based Conguration mode, and you have not entered the commit command, the
changes are maintained in the candidate conguration. You can start a new Transaction-Based Conguration mode session and
continue with the remaining conguration changes.
•
All sessions in Transaction-Based Conguration mode update the same candidate conguration. When you use the commit command
on any session in Transaction-Based Conguration mode or you make conguration changes on any session in Non-Transaction-Based
mode, you also commit the changes made to the candidate conguration in all other sessions running in the transaction-based
conguration mode. This implies that inconsistent conguration changes may be applied to the running conguration. Dell EMC
recommends only making conguration changes on a single CLI session at a time.
• When you enter the lock command in a CLI session, conguration changes are disabled on all other sessions, whether they are in
Transaction-Based Conguration mode or Non-Transaction-Based Conguration mode. For more information, see Candidate
conguration.
CLI command hierarchy
CLI commands are organized in a hierarchy. Commands that perform a similar function are grouped together under the same level of
hierarchy. For example, all commands that display information about the system and the system software are grouped under the show
system command, and all commands that display information about the routing table are grouped under the show ip route command.
To move directly to EXEC mode from any sub-mode, enter the end command. To move up one command mode, enter the exit
command.
CONFIGURATION mode
When you initially log in to OS10, you are placed in EXEC mode. To access CONFIGURATION mode, enter the configure terminal
command. Use CONFIGURATION mode to manage interfaces, protocols, and features.
OS10# configure terminal
OS10(config)#
Interface mode is a sub-mode of CONFIGURATION mode. In Interface mode, you congure Layer 2 (L2) and Layer 3 (L3) protocols, and
IPv4 and IPv6 services on an interface:
• Physical interfaces include the Management interface and Ethernet ports
• Logical interfaces include Loopback, port-channel, and virtual local area networks (VLANs)
CLI Basics
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