Cisco 3600 Series Manual de usuario

CHAPTER

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Overview of Cisco 3600 Series Routers

Cisco 3600 series routers are modular access routers with LAN and WAN connections that can be

configured by means of interchangeable modules and WAN interface cards. With over 70 modular

interface options, Cisco 3600 series routers provide solutions for data, voice, video, hybrid dial access,

Virtual Private Networks (VPNs), and multiprotocol data routing.

This chapter includes the following sections:

•Hardware Features, page 1-1

•Modules and Interface Cards, page 1-5

•Memory, page 1-6

•Interface Numbering, page 1-8

•System Specifications, page 1-12

•Regulatory Compliance, page 1-15

Hardware Features

The Cisco 3600 series includes the Cisco 3620, Cisco 3640, Cisco 3631, and Cisco 3660 routers, which

have the following features:

•Two slots for Personal Computer Memory Card International Association (PCMCIA) cards

(Cisco 3620, Cisco 3640, and Cisco 3660 routers only)

•Flash memory capability

•Sockets for memory modules; either:

–

Four sockets for DRAM single in-line memory modules (SIMMs), user-configurable as shared

memory or main (processor) memory (Cisco 3620 and Cisco 3640 routers only)

–

Two sockets for SDRAM dual in-line memory modules (DIMMs), user-configurable as shared

memory or main (processor) memory (Cisco 3631 and Cisco 3660 routers only)

•High-speed console and auxiliary ports (up to 115.2 kbps)

•Hardware thermal alarm to warn of excessively high operating temperature

Figure 1-1 through Figure 1-4 show the front panels of the Cisco 3600 series routers.

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Chapter 1 Overview of Cisco 3600 Series Routers

Hardware Features

Cisco 3620

The Cisco 3620 router includes these additional features:

•High-performance 80-MHz Reduced Instruction Set Computer (RISC) processor

•Two slots for network modules

•Can be installed in a 19-, 23-, or 24-inch rack, on a wall, or on a desk

•Can receive DC power from the Cisco Redundant Power System (RPS)

Figure 1-1 Front Panel of the Cisco 3620 Router

Cisco 3631

The Cisco 3631 router includes these additional features:

•High-performance 240-MHz PMC-Sierra RM7061A RISC processor

•One 10/100 Ethernet port

•Two slots for network modules

•One compact Flash memory card slot

•One Advanced Integration Module (AIM) slot

•2 WIC/VIC slots

•Can be installed in a 19- or 23-inch rack or on a desk

Figure 1-2 Front Panel of the Cisco 3631 Router

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Chapter 1 Overview of Cisco 3600 Series Routers Hardware Features

Cisco 3640

The Cisco 3640 router includes these additional features:

•High-performance 100-MHz RISC processor

•Four slots for network modules

•Can be installed in a 19-, 23-, or 24-inch rack, or on a desk

•Can receive DC power from the Cisco Redundant Power System (RPS)

Figure 1-3 Front Panel of the Cisco 3640 Router

Cisco 3660

The Cisco 3660 router includes these additional features:

•High-performance 225-MHz RISC processor installed on a removable mainboard tray

•Six slots for hot swapping similar network modules

•Can be installed in a 19- or 23-inch rack, or on a desk

•Dual redundant, hot-swappable power supplies (second power supply is optional)

•Hot-swappable fan cage used to cool the chassis

•One or two onboard, autosensing, 10/100 Fast Ethernet interfaces

•Supports two Advanced Integration Modules (AIMs)

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Chapter 1 Overview of Cisco 3600 Series Routers

Hardware Features

Figure 1-4 Front Panel of the Cisco 3660 Router

Note The Cisco 3660 router platform consists of two router models: Cisco 3661 and Cisco 3662. The

Cisco 3661 router with one Fast Ethernet interface (part number CISCO3661-xC) is shown in

Figure 1-5, and the Cisco 3662 router with two Fast Ethernet interfaces (part number CISCO3662-xC or

CISCO3662-xC-CO) is shown in Figure 1-6.

Figure 1-5 and Figure 1-6 show Cisco 3660 AC power supplies installed. The DC power supplies differ

in appearance but occupy the same bays in the router.

Note In this publication, references to Cisco 3660 routers include both Cisco 3661 and Cisco 3662 models.

Figure 1-5 Cisco 3661 Router with One Fast Ethernet Interface

READY

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RXD TXC TXD CN/LP RXC RXD TXC TXD CN/LP RXC RXD TXC TXD CN/LP RXC RXD TXC TXD

SERIAL

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Chapter 1 Overview of Cisco 3600 Series Routers Modules and Interface Cards

Figure 1-6 Cisco 3662 Router with Two Fast Ethernet Interfaces

Modules and Interface Cards

The latest information on network modules, WAN interface cards (WICs), voice interface cards (VICs),

and advanced integration modules (AIMs) is available online and on the documentation CD-ROM.

•For information on installing network modules, refer to the following documents:

–

Quick Start Guide: Network Modules for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700

Series Routers

–

Cisco Network Modules Hardware Installation Guide

•For information on installing WICs and VICs, refer to the following documents:

–

Quick Start Guide: Interface Cards for Cisco 1600, 1700, 2600, 3600, and 3700 Series

–

Cisco Interface Cards Hardware Installation Guide

•For information on installing AIMs, refer to the following documents:

–

AIM Installation Quick Start Guide: Cisco 2600, 3600, and 3700 Series

–

Installing Advanced Integration Modules in Cisco 2600 Series, Cisco 3600 Series, and Cisco

3700 Series Routers

30254

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RXD TXC TXD CN/LP RXC RXD TXC TXD CN/LP RXC RXD TXC TXD CN/LP RXC RXD TXC TXD

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Chapter 1 Overview of Cisco 3600 Series Routers

Memory

This section describes the various types of memory that may be present in a Cisco 3600 series router.

Memory Types

Cisco 3600 series routers support the following types of memory:

•DRAM or SDRAM—Stores the running configuration and routing tables, and is used for packet

buffering by the router’s network interfaces. The Cisco IOS software executes from DRAM.

•Nonvolatile random-access memory (NVRAM)—Stores the system configuration file and the virtual

configuration register. (For more information, see Appendix C, “Configuration Register.”)

•Flash memory—Stores the operating system software image. You can also add Flash memory on

PCMCIA cards and compact Flash cards, depending on the router.

•EPROM-based memory—Stores the ROM monitor, which allows you to boot an operating system

software image from Flash memory or PCMCIA memory.

Memory Installation Documentation

For information about installing DRAM, SDRAM, NVRAM, and Flash memory SIMMs, refer to the

following hardware configuration note:

•Upgrading System Memory in Cisco 3600 Series Routers

For information about installing Flash memory PCMCIA cards, refer to the following hardware

configuration note:

•Installing and Configuring Flash Memory Cards in Cisco 3600 Series Routers

For information about installing compact Flash memory cards, refer to the following hardware

configuration note:

•Installing and Formatting Cisco 2691, Cisco 3631 and Cisco 3700 Compact Flash Memory Cards

Memory Specifications

Table 1-1 through Table 1-4 list processor and memory specifications for the routers.

Table 1-1 Cisco 3620 Router Processor and Memory Speciﬁcations

Description Specification

Processor 80-MHz IDT1R4700 RISC

1. IDT = Integrated Device Technology.

DRAM (main plus shared) 4 to 64 MB

NVRAM 32 KB

Flash memory (SIMM) 4 to 32 MB

Flash memory (PCMCIA) 2 to 40 MB

Boot ROM 512 KB

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Chapter 1 Overview of Cisco 3600 Series Routers Memory

Table 1-2 Cisco 3631 Router Processor and Memory Speciﬁcations

Description Specification

Processor 240-MHz PMC-Sierra RM7061A

RISC processor

SDRAM (main plus shared) 64 to 256 MB

NVRAM 55 KB

Flash memory

(compact Flash) 32 to 128 MB

Boot ROM 512 KB

Table 1-3 Cisco 3640 Router Processor and Memory Speciﬁcations

Description Specification

Processor 100-MHz IDT R4700 RISC

DRAM (main plus shared) 4 to 128 MB

NVRAM 128 KB

Flash memory (SIMM) 4 to 32 MB

Flash memory (PCMCIA) 2 to 40 MB

Boot ROM 512 KB

Table 1-4 Cisco 3660 Router Processor and Memory Speciﬁcations

Description Specification

Processor 225-MHz QED RM5271

SDRAM (main plus shared) 32 to 256 MB

NVRAM 128 KB

Flash memory (SIMM) 8 to 64 MB

Flash memory (PCMCIA) 2 to 40 MB

Boot ROM 512 KB

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Chapter 1 Overview of Cisco 3600 Series Routers

Interface Numbering

Cisco 3620 and Cisco 3640 Interfaces

Each individual network interface on a Cisco 3620 or Cisco 3640 router is identified by a slot number

and a unit number.

Slot Numbering

The Cisco 3620 or Cisco 3640 router chassis contains two or four slots in which you can install modules.

You can install any module into any available slot in the chassis. For Cisco 3620 and Cisco 3640 routers,

the slots are numbered as follows:

•Slot 0 is at the bottom right (as viewed from the rear of the chassis), near the power supply.

•Slot 1 is at the bottom left.

•Slot 2 is at the top right, above slot 0.

•Slot 3 is at the top left, above slot 1.

Unit Numbering

Cisco 3600 series routers have unit numbers that identify the interfaces on the modules and WAN

interface cards installed in the router. Unit numbers begin at 0 for each interface type, and continue from

right to left and (if necessary) from bottom to top. Modules and WAN interface cards are identified by

interface type, slot number, followed by a forward slash (/), and then the unit number; for example,

Ethernet 0/0.

Figure 1-7 shows a router with a 2E 2-slot module in slots 0 and 1. Two serial WAN interface cards are

installed in the module in slot 0. One serial and one ISDN BRI WAN interface card are installed in the

module in slot 1.

Figure 1-7 Cisco 3600 Series Unit Numbers

INPUT 100-240VAC 50/60HZ 3.0-1.5 AMPS

ETHERNET 1 ETHERNET 0

2WW1 W0

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AUI

ETHERNET 1 ETHERNET 0

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Ethernet 0/1 Ethernet 0/0

thernet 1/1

Serial 1/0 Serial 0/1 Serial 0/0

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Chapter 1 Overview of Cisco 3600 Series Routers Interface Numbering

Voice Interface Numbering

Voice interfaces are numbered as follows:

interface-type chassis-slot/voice-module-slot/voice-interface

For example, Slot 1, voice network module slot 0, is referred to as voice 1/0/0 (closest to chassis slot 0).

Cisco 3631 Interfaces

Each individual interface (port) on a Cisco 3631 router is identified by number as described in the

following sections.

WAN and LAN Interface Numbering

The Cisco 3631 router chassis contains the following WAN and LAN interface types:

•One built-in FastEthernet LAN interface

•Two slots in which you can install WAN interface cards (WICs)

•Two single-width slots (slot 1 and slot 2) in which you can install single-width network modules

The numbering format is Interface-type Slot-number/Interface-number. Two examples are:

•FastEthernet 0/0

•Serial 1/2

The slot numbers are as follows:

•0 for all built-in interfaces

•0 for all WIC interfaces

•1 for interfaces in the lower network module slot

•2 for interfaces in the upper network module slot

Interface (port) numbers begin at 0 for each interface type, and continue from right to left and (if

necessary) from bottom to top.

Figure 1-8 shows an example of interface numbering on a Cisco 3631 router with:

•A WIC in each WIC slot (containing interfaces serial 0/0 and serial 0/1 in physical slot W0, and

interface serial 0/2 in physical slot W1)

•A 32-port asynchronous network module in slot 1 (containing interfaces serial 1/0 through serial

1/31)

•An alarm interface controller network module in slot 2 (internally connected to interface serial 2/0)

•One built-in Ethernet 10/100 interface—FastEthernet 0/0

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Chapter 1 Overview of Cisco 3600 Series Routers

Interface Numbering

Figure 1-8 Interface Numbering—Example

Note The slot number for all WIC interfaces is always 0. (The W0 and W1 slot designations are for physical

slot identification only.) Interfaces in the WICs are numbered from right to left, starting with 0/0 for each

interface type, regardless of which physical slot the WICs are installed in. Some examples are:

–

If slot W0 is empty and slot W1 contains a 1-port serial WIC, the interface in the WIC is

numbered serial 0/0.

–

If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port serial WIC, the interfaces

in physical slot W0 are numbered serial 0/0 and serial 0/1, and the interface in physical slot W1

is numbered serial 0/2.

–

If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port BRI WIC, the interfaces

in physical slot W0 are numbered serial 0/0 and serial 0/1, and the interface in physical slot W1

is numbered BRI 0/0.

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DSU

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CONN 1 CONN 3

ASYNC

ASYNC 8-15 ASYNC 0-7

ASYNC 24-31 ASYNC 16-23

Serial 0/2

Serial 1/0 to 1/7

Serial 1/16 to 1/23

Serial 1/8 to 1/15

Serial 1/24 to 1/31

Internal connections to serial 2/0

Console/AUX

ports

FastEthernet 0/0

Serial 0/0

Serial 0/1

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