You can use the no operator in a command to negate a configuration. Based on the functionality of the command, you can perform negations, such as disable, delete, remove, or reset to the default configuration. For more information about the no operator for each command, see VOSS Command Line Interface Commands Reference.
Use the ? command completion along with the no keyword to view the list of commands that support the no operator in each configuration mode. For more information, see Command completion.
Negate the automatic virtual link that provides automatic dynamic backup link for OSPF traffic.
Switch:1>enable Switch:1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch:1(config)#router ospf Switch:1(config-ospf)#no auto-vlink
Remove an IP address configuration from VLAN.
Switch:1>enable Switch:1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch:1(config)#interface vlan 3 Switch:1(config-if)#no ip address 192.0.2.4
View the commands that can negate a configuration in RIP router configuration mode.
Switch:1>enable Switch:1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch:1(config)#router rip Switch:1(config-rip)#no ? Negate a command or set its defaults ipv6 Disable ipv6 configurations network Disable rip on an ip network redistribute To disable/delete redistribute golbally Switch:1(config-rip)#no network ? {A.B.C.D} Network ip address Switch:1(config-rip)#no network 192.0.2.4 ? <cr>