Port Numbering Conventions; Understanding Cisco Ios Software Basics - Cisco 2431 - IAD Router Software Configuration Manual

Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics

Port Numbering Conventions

Figure 1-8
an example of the port numbering conventions.
Figure 1-8
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Port numbering conventions for all the Cisco IAD2430 series IADs are as follows:
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Understanding Cisco IOS Software Basics

This section describes what you need to know about the Cisco IOS software before you configure the
router by using the command-line interface (CLI). This chapter includes the following:
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OL-4306-03
shows the port numbers of the Cisco IAD2432-24FXS IAD. The figure is provided to show
Analog FXS User Interfaces with Metro Ethernet Interface
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RJ-21 connector
T1/E1 port 0
T1/E1 port 1
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.
The external flash memory port 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.
Getting Help, page 1-6
Command Modes, page 1-7
Undoing a Command or Feature, page 1-8
Saving Configuration Changes, page 1-8
Where to Go Next, page 1-10
Cisco IAD2430 Series Integrated Access Devices Software Configuration Guide
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Flash memory port
5 WIC/VIC slot
6 Fast Ethernet port 1
Port Numbering Conventions
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Fast Ethernet port 0
8 AUX port
9 Console port
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