Cisco IAD2430 Series Integrated Access Devices Software Configuration Guide - Chapter 1: Understanding Interface Numbering and Cisco IOS Software Basics [Cisco IAD2400 Series Integrated Access Devices]

Table Of Contents

Understanding Interface Numbering and Cisco IOS Software Basics

Identifying Cisco IAD2430 Models

Port Numbering Conventions

Software Compatibility

Understanding Cisco IOS Software Basics

Getting Help

Command Modes

Undoing a Command or Feature

Saving Configuration Changes

Upgrading to a New Cisco IOS Release

Cisco IAD2430 Series Deployment Scenarios

Where to Go Next

Understanding Interface Numbering and Cisco IOS Software Basics

This chapter provides an overview of interface numbering in the Cisco IAD2430 series integrated access devices (IADs). It also describes how to use the Cisco IOS software commands.

This chapter presents the following major topics:

•Identifying Cisco IAD2430 Models

•Port Numbering Conventions

•Understanding Cisco IOS Software Basics

•Upgrading to a New Cisco IOS Release

•Cisco IAD2430 Series Deployment Scenarios

•Where to Go Next

Identifying Cisco IAD2430 Models

Figure 1-1 shows the back panels and identifies the features of each model in the series.

Figure 1-1 Identifying Models in the Cisco IAD2430 Series

Cisco IAD2430-24FXS

•RJ-21 analog voice interface

•T1/E1 ports: none

•FE ports: 2

•External compact flash memory card

Cisco IAD2431-8FXS

•RJ-21 analog voice interface

•T1/E1 ports: 1

•FE ports: 1

•WIC/VIC option

•External compact flash memory card

Cisco IAD2431-16FXS

•RJ-21 analog voice interface

•T1/E1 ports: 1

•FE ports: 2

•WIC/VIC option

•External compact flash memory card

Cisco IAD2431-1T1E1

•T1/E1 ports: 2

•FE ports: 2

•WIC/VIC option

•External compact flash memory card

Cisco IAD2432-24FXS

•RJ-21 analog voice port

•T1/E1 ports: 2

•FE ports: 2

•WIC/VIC option

•External compact flash memory card

Port Numbering Conventions

The Cisco IAD2432-24FXS is used as an example. See Figure 1-2.

Figure 1-2 Back-Panel Functions and Options (Cisco IAD2432-24FXS shown)

1

RJ-21 connector

6

Fast Ethernet port 1

2

T1/E1 port 0

7

Fast Ethernet port 0

3

T1/E1 port 1

8

AUX port

4

Compact flash port

9

Console port

5

WIC/VIC slot

Note The Console port is above the AUX port.

Port numbering conventions for the Cisco IAD2430 series IADs differ from those for the Cisco IAD2420 series, as follows:

•Foreign Exchange Station (FXS) voice port numbering begins at 2/0 and extends to 2/7, 2/15, or 2/23, depending on the number of voice ports.

•T1/E1 ports are numbered T1 or E1 1/0 and T1 or E1 1/1, from right to left.

•An external compact flash memory card is numbered CF 0.

•The slot for WAN interface cards (WICs) and voice interface cards (VICs) is numbered slot 0. WIC and VIC interfaces are numbered by interface with this slot number and an interface number, beginning with 0 and running from right to left.

•10/100BASE-T Fast Ethernet ports are numbered Fast Ethernet 0/0 and Fast Ethernet 0/1, from right to left.

Software Compatibility

Table 1-1 lists the Cisco IAD2430 platforms, supported WICs and VICs and the software that runs on them:

Table 1-1 Cisco IAD2430 Platforms, WICs and VICs Software Compatibility Matrix

IAD2430-24FXS

IAD2431-8FXS

IAD2431-16FXS

IAD2432-24FXS

IAD2431-1T1E1

No WICs (base chassis)

12.2(15)ZJ

12.2(15)ZJ

12.2(15)ZJ

12.2(15)ZJ

12.2(15)ZJ

WIC-2T

N/A

12.2(15)ZJ

12.2(15)ZJ

12.2(15)ZJ

12.2(15)ZJ

WIC-1DSU-T1

N/A

12.2(15)ZJ

12.2(15)ZJ

12.2(15)ZJ

12.2(15)ZJ

VIC2-4FXO

N/A

12.2(15)ZJ

12.2(15)ZJ

12.2(15)ZJ

12.2(15)ZJ

WIC-1T

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

VIC2-2FXO

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

VIC2-2FXS

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

VIC-4FXS/DID

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

VIC2-2BRI-NT/TE

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

WIC-1ADSL

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

WIC-1SHDSL

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

WIC-1ADSL-DG

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

WIC-1SHDSL-V2

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

VWIC-2MFT-T1

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

VWIC-2MFT-E1

N/A

12.3(4)XD

12.3(4)XD

12.3(4)XD

12.3(4)XD

Understanding Cisco IOS Software Basics

This section describes what you need to know about the Cisco IOS software before you configure the router using the command-line interface (CLI). This chapter includes the following:

•Getting Help

•Command Modes

•Undoing a Command or Feature

•Saving Configuration Changes

•Where to Go Next

Understanding these concepts will save time as you begin to use the CLI. If you have never used Cisco IOS software or need a refresher, take a few minutes to read this chapter before you proceed to the next chapter.

If you are already familiar with Cisco IOS software, proceed to Chapter 2, "Using the setup Command."

Getting Help

Use the question mark (?) and arrow keys to help you enter commands:

•For a list of available commands, enter a question mark:
Router> ?
•To complete a command, enter a few known characters followed by a question mark (with no space):
Router> s?
•For a list of command variables, enter the command followed by a space and a question mark:
Router> show ?
•To redisplay a command you previously entered, press the up arrow key. You can continue to press the up arrow key for more commands.

Command Modes

The Cisco IOS user interface is divided into different modes. Each command mode permits you to configure different components on your router. The commands available at any given time depend on which mode you are currently in. Entering a question mark (?) at the prompt displays a list of commands available for each command mode. Table 1-2 lists the most common command modes.

Table 1-2 Common Command Modes

Command Mode

Access Method

Router Prompt Displayed

Exit Method

User EXEC

Log in.

Router>

Use the logout command.

Privileged EXEC

From user EXEC mode, enter the enable command.

Router#

To exit to user EXEC mode, use the disable, exit, or logout command.

Global configuration

From the privileged EXEC mode, enter the configure terminal command.

Router (config)#

To exit to privileged EXEC mode, use the exit or end command, or press Ctrl-Z.

Interface configuration

From the global configuration mode, enter the interface type number command, such as interface serial 0/0.

Router (config-if)#

To exit to global configuration mode, use the exit command.

To exit directly to privileged EXEC mode, press Ctrl-Z.

Timesaver Each command mode restricts you to a subset of commands. If you are having trouble entering a command, check the prompt, and enter the question mark (?) for a list of available commands. You might be in the wrong command mode or using the wrong syntax.

In the following example, notice how the prompt changes after each command to indicate a new command mode:
Router> enable
Password: <enable password>
Router# configure terminal
Router(config)# interface serial 0/0
Router(config-if)# line 0
Router(config-line)# controller T1/E1 slot/port <---See second Note below
Router(config-controller)# exit
Router(config)# exit
Router#
%SYS-5-CONFIG_I: Configured from console by console
The last message is normal and does not indicate an error. Press Return to get the Router# prompt.

Note You can press Ctrl-Z in any mode to immediately return to enable mode (Router#), instead of entering exit, which returns you to the previous mode.

Note In Cisco IAD2430 series IADs, the controller port syntax is x/y, where

slot can be 0 (where 0 is the T1/E1 controller on a VWIC) or 1 (the onboard T1/E1), and

port can be 0 (the first port) or 1 (the second port).

See the "Port Numbering Conventions" section.

Undoing a Command or Feature

If you want to undo a command you entered or disable a feature, enter the keyword no before most commands; for example, no ip routing.

Saving Configuration Changes

You need to enter the copy running-config startup-config command to save your configuration changes to nonvolatile random-access memory (NVRAM), so the changes are not lost if there is a system reload or power outage. For example:
Router# copy running-config startup-config
Building configuration...
It might take a minute or two to save the configuration to NVRAM. After the configuration has been saved, the following appears:
[OK]
Router#
Upgrading to a New Cisco IOS Release

To install or upgrade to a new Cisco IOS release, refer to "Formatting the Compact Flash Memory Cards."

Cisco IAD2430 Series Deployment Scenarios

Figure 1-3 through Figure 1-6 show some typical deployment scenarios for Cisco IAD2430 series integrated access devices.

Figure 1-3 Analog FXS User Interfaces with Metro Ethernet Interface

Figure 1-4 T1/E1 WAN Interface with Analog FXS User Interfaces

Figure 1-5 T1/E1 WAN Interface with Analog FXS and FXO User Interfaces

Figure 1-6 T1/E1 WAN Interface with T1 Interface to PBX

Where to Go Next

Now that you have learned some Cisco IOS software basics, you can begin to configure the router using the CLI.

Remember that:

•You can use the question mark (?) and arrow keys to help you enter commands.

•Each command mode restricts you to a set of commands. If you have difficulty entering a command, check the prompt and then enter the question mark (?) for a list of available commands. You might be in the wrong command mode or using the wrong syntax.

•To disable a feature, generally enter the keyword no before the command; for example, no ip routing.

•You need to save your configuration changes to NVRAM so the changes are not lost if there is a system reload or power outage.

Proceed to Chapter 2, "Using the setup Command," to begin configuring the router.