Chapter 3 First-Time Configuration

Understanding the Cisco 3825 Router Interface Numbering

Figure 3-1 Cisco 3825 Router Slot and Port Numbers

NMD- ESW- 36

Network module

 

Removable

Console

Gigabit Ethernet

(NME) slot 2

 

face plate

port

(GIGE) ports

 

 

 

 

GE 0/0

 

 

 

 

GE 0/1

35x

 

 

 

 

GE1

 

 

 

 

10/100/

FastEthernet

Ports

 

 

Base-Tx1000 17x

 

 

 

280205

Network module

High-speed WIC

Auxiliary

Small Form Pluggable

(NME) slot 1

 

(HWIC) slots

port

(SFP) port

 

 

 

 

 

 

 

 

HWIC3

HWIC2

 

 

 

 

 

HWIC1

HWIC0

 

 

Slot and Port Numbering

The Cisco 3825 router chassis contains the following LAN and WAN interface types:

One Small Form Pulggable (SFP) port—industry standard Gigabit interface convertor

Two built-in Gigabit Ethernet LAN interfaces (labeled GE 0/0 and GE 0/1)

Four slots for installing Cisco 2-port T1/E1-RAN interface cards (labeled HWIC0, HWIC1, HWIC2, and HWIC3)

Two slots for installing NM-2W network modules (supports up to four additional Cisco 2-port T1/E1-RAN interface cards)

Note A removable face plate allows for installation of a double-wide NMD network module into NME slot 2.

The logical slot numbers are as follows:

0 for all built-in Cisco 2-port T1/E1-RAN interface card slots

1 for the lower network module slot

2 for the upper network module slot

The numbering format is:

<Interface type> <Slot number> / <Subslot number> / <Port number> For example:

Serial 0/0/0 (HWIC slot 0)

Serial 1/0/0 (NM slot 1)

Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide

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OL-15667-03

 

 

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Cisco Systems 3825 manual Slot and Port Numbering, Serial 0/0/0 Hwic slot Serial 1/0/0 NM slot