Dell MX9116n EMC SmartFabric OS10 User Guide Release 10.5.1 - Page 58

Candidate configuration When you use OS10 configuration commands in Transaction-based configuration mode, changes do not take effect immediately and are stored in the candidate configuration. The configuration changes become active only after you commit the changes using the commit command. Changes in the candidate configuration are validated and applied to the running configuration. The candidate configuration allows you to avoid introducing errors during an OS10 configuration session. You can make changes and then check them before committing them to the active, running configuration on the switch. To check differences between the running configuration and the candidate configuration, use the show diff candidateconfiguration running-configuration command. For example, before entering Transaction mode, you can check that no new configuration commands are entered. If the show command does not return output, the candidate-configuration and running-configuration files are the same. Then start Transaction mode, configure new settings, and view the differences between the candidate and running configurations. Decide if you want to commit the changes to the running configuration. To delete uncommitted changes, use the discard command. View differences between candidate and running configurations OS10# show diff candidate-configuration running-configuration OS10# OS10# start transaction OS10# configure terminal OS10(config)# interface vlan 100 OS10(conf-if-vl-100)# exit OS10(config)# interface ethernet 1/1/15 OS10(conf-if-eth1/1/15)# switchport mode trunk OS10(conf-if-eth1/1/15)# switchport trunk allowed vlan 100 OS10(conf-if-eth1/1/15)# end OS10# show diff candidate-configuration running-configuration ! interface ethernet1/1/15 switchport mode trunk switchport trunk allowed vlan 100 ! interface vlan100 no shutdown OS10# Commit configuration changes in candidate configuration in Transaction mode 1. Change to Transaction-based configuration mode from EXEC mode. start transaction 2. Enter configuration commands. For example, enable an interface from INTERFACE mode. interface ethernet 1/1/1 no shutdown 3. Save the configuration changes to the running configuration. do commit After you enter the commit command, the current OS10 session switches back to the default behavior of committing all configuration changes automatically. OS10# start transaction OS10# configure terminal OS10(config)# OS10(config)# interface ethernet 1/1/1 OS10(config-if-eth1/1/1)# no shutdown OS10(config-if-eth1/1/1)# do commit Compressed configuration views 58 CLI Basics