Administrator Guide

Conguration Fundamentals

The Dell Networking Operating System (OS) command line interface (CLI) is a text-based interface you can use to congure

interfaces and protocols.

The CLI is structured in modes for security and management purposes. Dierent sets of commands are available in each mode, and

you can limit user access to modes using privilege levels.

In Dell Networking OS, after you enable a command, it is entered into the running conguration le. You can view the current

conguration for the whole system or for a particular CLI mode. To save the current conguration, copy the running conguration to

another location. For more information, refer to Save the Running-Conguration.

NOTE: You can use the chassis management controller (CMC) out-of-band management interface to access and manage

an Aggregator using the Dell Networking OS command-line reference. For more information about how to access the

CMC to congure an Aggregator, refer to the Dell Chassis Management Controller (CMC) User’s Guide on the Dell

Support website at

http://support.dell.com/support/edocs/systems/pem/en/index.htm

Accessing the Command Line

Access the command line through a serial console port or a Telnet session (Logging into the System using Telnet). When the system

successfully boots, enter the command line in EXEC mode.

Logging into the System using Telnet

telnet 172.31.1.53

Trying 172.31.1.53...

Connected to 172.31.1.53.

Escape character is '^]'.

Password:

Dell>

CLI Modes

Dierent sets of commands are available in each mode.

A command found in one mode cannot be executed from another mode (except for EXEC mode commands with a preceding do

command (refer to the do Command section).

The Dell Networking OS CLI is divided into three major mode levels:

• EXEC mode is the default mode and has a privilege level of 1, which is the most restricted level. Only a limited selection of

commands is available, notably the show commands, which allow you to view system information.

• EXEC Privilege mode has commands to view congurations, clear counters, manage conguration les, run diagnostics, and

enable or disable debug operations. The privilege level is 15, which is unrestricted. You can congure a password for this mode.

• CONFIGURATION mode allows you to congure security features, time settings, set logging and SNMP functions, congure

static ARP and MAC addresses, and set line cards on the system.

Beneath CONFIGURATION mode are submodes that apply to interfaces, protocols, and features. The following example shows the

submode command structure. Two sub-CONFIGURATION modes are important when conguring the chassis for the rst time:

• INTERFACE submode is the mode in which you congure Layer 2 protocols and IP services specic to an interface. An interface

can be physical (10 Gigabit Ethernet) or logical (Null, port channel, or virtual local area network [VLAN]).

Conguration Fundamentals