The "no" Form of a Command
The "no" form of a command can take the following meanings depending on the context:
Sets the parameter back to its default value. For example, to set the parameter, signaling-mode, back to its default value:
bti7800(config-interface-10ge:1/3/1/1)# signaling-mode ?
Possible completions: [legacy] legacy standard
bti7800(config-interface-10ge:1/3/1/1)# no signaling-mode
bti7800(config-interface-10ge:1/3/1/1)# signaling-mode ?
Possible completions: [standard] legacy standard
Negates a command. For example, to enable the airfilterAbsence alarm:
bti7800(config)# no conditions settings airfilterAbsense disable
Deletes a provisioned entity. For example, to delete an interface:
bti7800(config)# no interface 10ge:1/3/1/2
Note that the "no" form of the same command might take on different meanings depending on the parameters you use in the command.
This sets the parameter back to its default value:
bti7800(config)# no system auto-warm-boot
This enables the option:
bti7800(config)# no system auto-warm-boot disabled