Reference Guide

40 | Configuration Fundamentals
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The following example illustrates how to change the command mode from CONFIGURATION mode to
PROTOCOL SPANNING TREE.
FTOS(conf)#protocol spanning-tree 0
FTOS(config-span)#
The do Command
Enter an EXEC mode command from any CONFIGURATION mode (CONFIGURATION, INTERFACE,
SPANNING TREE, etc.) without returning to EXEC mode by preceding the EXEC mode command with
the command
do. The following example illustrates the do command.
FTOS(conf)#do show linecard all
-- Line cards --
Slot Status NxtBoot ReqTyp CurTyp Version Ports
---------------------------------------------------------------------------
0 not present
1 not present
2 online online E48TB E48TB 1-1-463 48
3 not present
4 not present
5 online online E48VB E48VB 1-1-463 48
6 not present
7 not present
Undoing Commands
When you enter a command, the command line is added to the running configuration file. Disable a
command and remove it from the running-config by entering the original command preceded by the
command
no. For example, to delete an ip address configured on an interface, use the no ip address
ip-address command, as shown in the following example.
FTOS(conf)#interface gigabitethernet 4/17
FTOS(conf-if-gi-4/17)#ip address 192.168.10.1/24
FTOS(conf-if-gi-4/17)#show config
!
interface GigabitEthernet 4/17
ip address 192.168.10.1/24
no shutdown
FTOS(conf-if-gi-4/17)#no ip address
FTOS(conf-if-gi-4/17)#show config
!
Note: The following commands cannot be modified by the do command: enable, disable, exit, and
configure.
Note: Use the help or ? command as discussed in Obtaining Help command to help you construct the
“no” form of a command.