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Menu basics 15
Operations-level commands are used for making immediate and temporary changes to switch
configuration. This menu is used for bringing ports temporarily in and out of service. This menu is
available only from an administrator and operator login.
• Boot Options Menu
The Boot Options Menu is available only from an administrator login. This menu is used for
upgrading switch software, selecting configuration blocks, and for resetting the switch when
necessary. This menu is also used to set the switch back to factory settings.
• Maintenance Menu
This menu is used for debugging purposes, enabling you to generate a technical support dump
of the critical state information in the switch, and to clear entries in the Forwarding Database
and the Address Resolution Protocol (ARP) and routing tables. This menu is available only from
an administrator and operator login.
Global commands
Some basic commands are recognized throughout the menu hierarchy. These commands are useful
for obtaining online Help, navigating through menus, and for applying and saving configuration
changes.
For help on a specific command, enter help. The following screen displays:
Global Commands: [can be issued from any menu]
help up print pwd
lines verbose exit quit
diff apply save revert
ping traceroute telnet history
pushd popd who
The following are used to navigate the menu structure:
. Print current menu
.. Move up one menu level
/ Top menu if first, or command separator
! Execute command from history
The following table describes the global commands.
Table 4
Global commands
Command Action
? command or
help
Provides usage information about a specific command on the current menu. When used
without the command parameter, a summary of the global commands is displayed.
. or print Displays the current menu.
.. or up Moves up one level in the menu structure.
/
If placed at the beginning of a command, displays the Main Menu. Otherwise, this is
used to separate multiple commands placed on the same line.
lines
Sets the number of lines (n) that display on the screen at one time. The default is 24 lines.
When used without a value, the current setting is displayed.
diff
Shows any pending configuration changes that have not been applied.
diff flash displays all pending configuration changes that have been applied but not
saved to flash memory (NVRAM), as well as those that have not been applied.
apply
Applies pending configuration changes.