Instruction/ maintenance manual of the product 1721 Cisco
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CH A P T E R 1-1 Cisco 1721 Router Hardwa re Installation Guide 78-13834-02 1 Cisco 1721 Router Overview This chapter intro duces the Cisco 1721 router, also referred to in this guide as the r outer ,.
Chapter 1 Cisco 1721 Router Overview Key Features 1-2 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Key Features The Cisco 1721 ro uter (see Figure 1-1 ) is a small, mod ular desktop router th at links small- to medi um-size remote Ethernet and F ast Ethernet LANs o ver one to four W AN connections to re gional and central of f ices.
1-3 Cisco 1721 Router Hardwa re Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Key Features T able 1 -1 Ke y F eatur es Feature Description One F ast Ethernet (10/100B ASE-TX) port • Operates in ful l- or half-duple x mode (with manual ov e rride a v ailable).
Chapter 1 Cisco 1721 Router Overview Back Pa nel Ports and LEDs 1-4 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Back Panel Ports and LEDs This section d escribes the router back panel ports and LEDs, which are sho wn in Figure 1-2 and descr ibed in Ta b l e 1 - 2 and Ta b l e 1 - 3 .
1-5 Cisco 1721 Router Hardwa re Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Front Panel LEDs Use the back panel LEDs duri ng router installati on to conf irm that you hav e correctly connected all th e cables to the router .
Chapter 1 Cisco 1721 Router Overview Front Panel LEDs 1-6 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Figur e 1 -3 F r ont P anel LEDs T able 1 -4 Fr ont P anel LEDs LED Label Color Description PWR Green On means that DC power is being supplied to the router .
1-7 Cisco 1721 Router Hardwa re Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Router Memory Router Memory This section de scribes the types of memory stored in the router and ho w to f ind out ho w much of each type of memory is stored in the router .
Chapter 1 Cisco 1721 Router Overview Router Memory 1-8 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Types of Memory The Cisco 1721 ro uter has the fol lo wing type s of memory: • Dynamic random-access memory (DRAM)—This is the ma in storage memory for the r outer .
1-9 Cisco 1721 Router Hardwa re Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Unpacking the Rou ter cisco 1721 (MPC860P) processor (revision 0x101) with 36864K/12288K bytes of memory. Processor board ID VEN0539000D (3033334544), with hardware revision 0000 MPC860P processor: part number 5, mask 2 Bridging software.
Chapter 1 Cisco 1721 Router Overview Additional Required Equipment 1-10 Cisco 1721 Router Hardware Installation Guide 78-13834-02 T able 1 -6 Additio nal Requir ed Equipmen t Equipment When Y ou Use It Ethernet hub A hub connects pieces of netw ork equipment ( including the Cisco 1721 router) to create a netw ork.
An important point after buying a device Cisco 1721 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cisco 1721 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cisco 1721 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cisco 1721 you will learn all the available features of the product, as well as information on its operation. The information that you get Cisco 1721 will certainly help you make a decision on the purchase.
If you already are a holder of Cisco 1721, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cisco 1721.
However, one of the most important roles played by the user manual is to help in solving problems with Cisco 1721. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cisco 1721 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
