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Page 2 - Key Features; The Cisco 1721 router (see

Chapter 1 Cisco 1721 Router Overview Key Features 1-2 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Key Features The Cisco 1721 router (see Figure 1-1 ) is a small, modular desktop router that links small- to medium-size remote Ethernet and Fast Ethernet LANs over one to four WAN connect...

Page 3 - Feature

1-3 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Key Features Table 1-1 Key Features Feature Description One Fast Ethernet (10/100BASE-TX) port • Operates in full- or half-duplex mode (with manual override available). • Supports autosensing for 10- o...

Page 4 - and described in; Back Panel Ports and LEDs; Description; Ethernet port

Chapter 1 Cisco 1721 Router Overview Back Panel Ports and LEDs 1-4 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Back Panel Ports and LEDs This section describes the router back panel ports and LEDs, which are shown in Figure 1-2 and described in Table 1-2 and Table 1-3 . Figure 1-2 Back...

Page 5 - Front Panel LEDs; Cisco WAN Interface Cards Hardware Installation; Back Panel LEDs; LED Label

1-5 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Front Panel LEDs Use the back panel LEDs during router installation to confirm that you have correctly connected all the cables to the router. Front Panel LEDs Use the router front panel LEDs to determ...

Page 6 - “OK LED Diagnostics”

Chapter 1 Cisco 1721 Router Overview Front Panel LEDs 1-6 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Figure 1-3 Front Panel LEDs Table 1-4 Front Panel LEDs LED Label Color Description PWR Green On means that DC power is being supplied to the router. OK Green On means that the router h...

Page 7 - Router Memory

1-7 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Router Memory Router Memory This section describes the types of memory stored in the router and how to find out how much of each type of memory is stored in the router. For instruction on how to upgrad...

Page 8 - Types of Memory; The Cisco 1721 router has the following types of memory:; Amounts of Memory; command to view the amount of DRAM, NVRAM,; show version; command output displays the amount of memory in this 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 router has the following types of memory: • Dynamic random-access memory (DRAM)—This is the main storage memory for the router. DRAM is also called working ...

Page 9 - Unpacking the Router; accessory kit that is inside the box that your router came in.; Additional Required Equipment; , to complete your router; Router Box Contents; Power supply

1-9 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Chapter 1 Cisco 1721 Router Overview Unpacking the Router cisco 1721 (MPC860P) processor (revision 0x101) with 36864K/12288K bytes of memory. Processor board ID VEN0539000D (3033334544), with hardware revision 0000 MPC860P processor: part...

Page 10 - Equipment; Cisco WAN Interface Cards Hardware

Chapter 1 Cisco 1721 Router Overview Additional Required Equipment 1-10 Cisco 1721 Router Hardware Installation Guide 78-13834-02 Table 1-6 Additional Required Equipment Equipment When You Use It Ethernet hub A hub connects pieces of network equipment (including the Cisco 1721 router) to create a ne...