Cisco_Systems_Router

Cisco 1750 Router Overview

This chapter introduces the Cisco 1750 router, also referred to in this guide as ???the router,??? and covers the following topics:

???Key Features

???Rear-Panel Ports and LEDs

???Front-Panel LEDs

???Router Memory

???Unpacking the Router

???Additional Required Equipment Figure 1 shows the Cisco 1750 router.

Cisco 1750 Router Hardware Installation Guide

Key Features

Figure 1 Cisco 1750 Router

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Key Features

The Cisco 1750 router is a voice-and-data capable router that provides Voice-over-IP functionality (VoIP) and can carry voice traffic (for example, telephone calls and faxes) over an IP network. Using one to four WAN connections, the router links small-to-medium-size remote Ethernet and FastEthernet LANs to central offices. Table 1 lists the router key features.

Table 1 Key Features

Front-Panel LEDs

Use the router front-panel LEDs to determine network activity and status on the Ethernet port and on the WIC and VIC ports. The front-panel LEDs are illustrated in Figure 3 and described in Table 4.

Figure 3 Front-Panel LEDs

ETH ACT

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ETH

Router Memory

This section describes the types of memory stored in the router and how to find out how much of each the router has.

For instructions on how to upgrade memory in the router, refer to the ???Installing and Upgrading Memory and Data Modules??? appendix in this guide.

Types of Memory

The router has the following types of memory:

???Dynamic RAM (DRAM)???This is the main storage memory for the router. DRAM is also called working storage and contains the dynamic configuration information. The router stores a working copy of Cisco IOS software, dynamic configuration information, and routing table information in DRAM.

???Nonvolatile RAM (NVRAM)???This type of memory contains the startup configuration.

???Flash memory???This special kind of erasable, programmable memory contains a copy of the Cisco IOS software. The Flash memory structure can store multiple copies of the Cisco IOS software. You can load a new level of the operating system in every router in your network and then, when convenient, upgrade the whole network to the new level. The Flash memory on the router is stored on mini-Flash modules.

Cisco 1750 Router Hardware Installation Guide

Router Memory

Amounts of Memory

Use the show version command to view the amount of DRAM, NVRAM, and Flash memory stored in your router. The following example shows the output of the show version command. The bold text displays the amount of memory stored in this router.

1750# show version

Cisco Internetwork Operating System Software

IOS (tm) C1700 Software (C1700-SV3Y-M), Experimental Version 12.0(19980308:184442) [syaji-grammy-v6 189]

Image text-base: 0x80008088, data-base: 0x806B2BB8

ROM: System Bootstrap, Version 12.0(1)XA1,RELEASE SOFTWARE (fc1)

Router uptime is 15 minutes

System restarted by power-on

System image file is ???flash:syaji/c1700-sv3y-mz???

cisco 1750 (MPC860) processor (revision 0x00) with 24576K/8192K bytes

of memory.

Processor board ID 0000 (1314672220), with hardware revision 0000 M860 processor: part number 0, mask 32

Bridging software.

X.25 software, Version 3.0.0.

1 FastEthernet/IEEE 802.3 interface(s)

2 Low-speed serial(sync/async) network interface(s)

2 Voice FXS interface(s)

2 Voice E & M interface(s)

32K bytes of non-volatile configuration memory.

8192K bytes of processor board System flash (Read/Write)

Configuration register is 0x0

Cisco 1750 Router Hardware Installation Guide

Unpacking the Router

Table 1-5 lists the items that come with your router. All these items are in the accessory kit that is inside the box that your router came in.

Table 1-5 Router Box Contents

???Power cord (black)

???Power supply

???DB-25 to DB-9 adapter

???Console cable, RJ-45 to DB-9 (light blue)

???Product documentation

Additional Required Equipment

Depending on your local network and which Cisco WICs and VICs you install in your router, you might need other items listed in Table 6 to complete your router installation.

Table 6 Additional Required Equipment