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Cisco Systems 1721 manual

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Table of contents for the manual

  • Page 1

    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 introduces the Cisco 1721 router, also referred to in th is guide as the r outer , and cov ers the following t o pics: • K ey Features • Back Panel Ports and LEDs • Front Panel LEDs • Router Memory • Unpacking the Router ?[...]

  • Page 2

    Chapter 1 Cisco 1721 Router Overview Key Features 1-2 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Key Features The Cisco 1721 rout er (see Figure 1-1 ) is a small, modul a r desktop router that links small- to medi um-size remote Ethernet an d Fast Et hernet LANs o ver one to four W AN connections to re gional and central of fices. Ta[...]

  • Page 3

    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 Featur es Feature Description One Fa st Ethernet (10/100B ASE-TX) port • Operates in full- o r half-duple x mode (with manual ov erride av ailable). • Supports autos ensing for 10- or 100 -Mbps operation . • Suppor[...]

  • Page 4

    Chapter 1 Cisco 1721 Router Overview Back Pane l Ports and LEDs 1-4 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Back Panel Ports and LEDs This section descri bes the router back panel ports and LEDs, wh ich are shown in Figure 1-2 and descr ibed in Ta b l e 1 - 2 and Ta b l e 1 - 3 . Figure 1 -2 Back P anel P orts and LEDs T able 1 -2[...]

  • Page 5

    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 during router installation to conf irm that you ha ve correctly connected all th e ca bles to the router . Front Panel LEDs Use the router front panel LEDs to determine netw ork activity and status on the Ethe[...]

  • Page 6

    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 ront P anel LEDs T able 1 -4 Front P anel LEDs LED Label Color Description PWR Green On means that DC power is being supplied to t h e router . OK Green On means that the router has suc ces sfully booted up and the sof [...]

  • Page 7

    1-7 Cisco 1721 Router Hardwa re Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Router Memory Router Memory This section descri bes the types of memory stored in th e router and ho w to f ind out ho w much of each type of memory is stored in the router . For instructio n on how to upgrade memory in the router , see Appendix C, ?[...]

  • Page 8

    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 rout er has the following types of mem ory: • Dynamic random-access memory (DRAM)—This is the main storage memory for the rout er . DRAM is also called working storag e . It contains the dynamic conf ig[...]

  • Page 9

    1-9 Cisco 1721 Router Hardwa re Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Unpacking the Route r 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. X.25 softwa[...]

  • Page 10

    Chapter 1 Cisco 1721 Router Overview Additional Required Eq uipment 1-10 Cisco 1721 Router Hardware Installation Guide 78-13834-02 T able 1 -6 Additional Requir ed Equipment Equipment When Y ou Use It Ethernet hub A hub connects pieces of netw ork equipment (including the Cisco 1721 router) to create a netwo rk. Y ou can use a 10-, 100 -, or 10/100[...]