Dell PowerSwitch S4112F-ON EMC SmartFabric OS10 User Guide Release 10.5.1 - Page 60
Prevent configuration changes, Conflicting interface ranges, command, and try
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Prevent configuration changes You can prevent configuration changes that are made on the switch in sessions other than the current CLI session using the lock command. To prevent and allow configuration changes in other sessions, use the lock and unlock commands in EXEC mode. When you enter the lock command, users in other active CLI sessions cannot make configuration changes. When you close the CLI session in which you entered the lock command, configuration changes are automatically allowed in all other sessions. OS10# lock OS10# unlock Conflicting interface ranges After you apply one or more VLANs to an interface using the switchport trunk allowed vlan command, and try to delete some of the VLANs from the candidate configuration, the system displays an error message. For example, the following is a configuration without conflicts: OS10# start transaction OS10# configure terminal OS10(config)# interface range vlan 2-3 OS10(conf-range-vl-2-3)# exit OS10(config)# interface range vlan 40-45 OS10(conf-range-vl-40-45)# exit OS10(config)# OS10(config)# interface range port-channel 2-3 OS10(conf-range-po-2-3)# switchport mode trunk OS10(conf-range-po-2-3)# switchport trunk allowed vlan 2-3 OS10(conf-range-po-2-3)# switchport trunk allowed vlan 40-45 OS10(conf-range-po-2-3)# exit OS10(config)# no interface range vlan 20-30 OS10(config)# do commit The system already contains the following configuration: OS10(config)# do show running-configuration interface port-channel ! interface port-channel3 no shutdown switchport mode trunk switchport access vlan 1 switchport trunk allowed vlan 2-3,40-45 OS10(config)# OS10(config)# do show running-configuration interface vlan ! interface vlan1 no shutdown ! interface vlan2 no shutdown ! interface vlan3 no shutdown ! interface vlan4 no shutdown ! interface vlan5 no shutdown The following depicts a conflicting configuration wherein a few VLANs are created and applied to an interface and then a subset of VLANs are removed from the candidate configuration: OS10(config)# do start transaction OS10(config)# interface range port-channel 3 60 CLI Basics
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