Cli command modes – Dell POWEREDGE M1000E User Manual

Page 172

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172

Using the CLI

1 default

Po1-48, Default

Gi1/0/1-24

Example #3

CLI Command Modes

Since the set of CLI commands is very large, the CLI is structured as a

command-tree hierarchy, where related command sets are assigned to

command modes for easier access. At each level, only the commands related

to that level are available to the user and only those commands are shown in

the context sensitive help for that level.
In this guide, commands are organized into three categories:

• Layer 2 (Data Link Layer) commands
• Layer 3 (Network Layer) commands
• Utility Commands

Layer 2 (Data Link Layer) describes the logical organization of data bits

transmitted on a particular medium. This layer defines the framing,

addressing and checksumming of Ethernet packets.
Layer 3 (Network Layer) describes how a series of exchanges over various data

links can deliver data between any two nodes in a network. This layer defines

the addressing and routing structure of the Internet.
Utility describes commands used to manage the switch.
Commands that cause specific actions to be taken immediately by the system

and do not directly affect the system configurations are defined at the top of

the command tree. For example, commands for rebooting the system or for

downloading or backing up the system configuration files are placed at the

top of the hierarchy tree.
Commands that result in configuration changes to the switch are grouped in

a Configuration sub tree.
There are levels beneath the Configuration mode for further grouping of

commands. The system prompt reflects these sub-Configuration modes.
All the parameters are provided with reasonable defaults where possible.

2CSPC4.XModular-SWUM200.book Page 172 Thursday, March 10, 2011 11:18 AM

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