Cisco Catalyst 4000 Manuale utente

CHAPTER

Overview of the Cisco 4000 Series Routers 1-1

Overview of the Cisco 4000

Series Routers

The Cisco 4000 series consists of the Cisco 4000-M, the Cisco 4500-M, and the

Cisco 4700-M. All models provide a configurable modular router platform using network

processor modules—individual modules that when installed in the router are ready for

external network connections. Performance is the key distinction between the

Cisco 4000-M, Cisco 4500-M, and Cisco 4700-M.

For maximum performance in the Cisco 4000 series, the Cisco 4700-M contains a

133-MHz RISC microprocessor, 16 to 64 MB main memory, and a 512-KB secondary

cache. The faster speed of the Cisco 4700-M allows higher throughput for high-speed

interfaces. The 512-KB secondary cache is useful for process switching applications such

as compression and encryption.

The Cisco 4500-M contains a 100-MHz RISC microprocessor and 8 to 32 MB of main

memory. The Cisco 4000-M contains a 40-MHz CISC microprocessor and 4 to 32 MB of

main memory.

All Cisco 4000 series routers provide flexibility, allowing network managers to easily

reconfigure the router when needs change.

The Cisco 4000 series routers support up to three network processor modules at a time. The

following network processor modules are available at the publication date of this guide:

•Single-port Fast Ethernet with 100BaseT and MII connectors provided for the port

•Single-port and dual-port Ethernet with 10BaseT and AUI connectors provided for each

port

•Six-port Ethernet with 10BaseT connectors provided for each port

•Dual-port and four-port synchronous serial supporting EIA/TIA-232, EIA/TIA-449,

V.35, X.21, NRZ/NRZI, DTE/DCE, or EIA-530 DTE interfaces on each port

1-2 Cisco 4000 Series Installation Guide

•Dual-port high-speed synchronous serial and 16-port low-speed

synchronous/asynchronous serial. The high-speed ports supports EIA/TIA-232,

EIA/TIA-449, V.35, X.21, NRZ/NRZI, DTE/DCE, or EIA-530 DTE interfaces. The

low-speed ports support EIA/TIA-232, V.35, or X.21 interfaces in DTE or DCE mode.

Each low-speed port can be individually configured for synchronous or asynchronous.

•Single-port HSSI

•Single-port and dual-port Token Ring

•Dual attachment single-mode FDDI

•Single attachment or dual attachment multimode FDDI

•Four-port or eight-port ISDN BRI

•Four-port balanced or unbalanced G.703/G.704

•Single-port channelized T1/ISDN PRI

•Single-port balanced or unbalanced channelized E1/ISDN PRI

•Single-port ATM with single-mode OC-3 and long-reach capability, multimode OC-3,

DS-3, or E3 interfaces

Note For information about modules released after publication of this guide, see the

configuration note packet shipped with your router.

Note EIA/TIA-232 and EIA-TIA-449 were known as recommended standards RS-232

and RS-449 before their acceptance as standards by the Electronics Industries Association

(EIA) and Telecommunications Industry Association (TIA)

Figure 1-1 shows the front panel of a Cisco 4000 series router.

Figure 1-1 Cisco 4000 Series Chassis—Front Panel

Overview of the Cisco 4000 Series Routers 1-3

H3590

DATA

OK POWER

SERIES

1-4 Cisco 4000 Series Installation Guide

Series Specifications

Design specifications for the Cisco 4000 series are as follows:

•Modular router platform.

•Flash memory capability.

•User-upgradable network processor modules, shared memory, and processor local

memory.

•Hardware thermal alarm to warn of excessively high operating temperature.

•Can be rack-mounted in either a standard 19-inch rack or a telco rack.

•Can be mounted on a wall or placed on a desk or table.

•Support for up to three network processor modules at a time. Network processor

modules can be placed in any of the three available positions in almost any desired

combination. See the Cisco Product Catalog for complete configuration details.

The BRI four-port and eight-port network interface modules can not be used in the same

chassis with the channelized T1/ISDN PRI network interface module or the channelized

E1/ISDN PRI network interface module.

The Cisco 4000-M does not support Fast Ethernet, HSSI, 2T16S, ATM, or six-port Ethernet

network processor modules.The Cisco 4000-M can support only one FDDI network

processor module in combination with any two other types of network processor modules.

The Cisco 4500-M and Cisco 4700-M can support two FDDI network processor modules.

If you are only using one FDDI module, install it in the center slot for optimum heat

dissipation.

The Cisco 4500-M and Cisco 4700-M can support one ATM network processor module or

up to three six-port Ethernet network processor modules. The single-port Ethernet module

is not supported on the Cisco 4500-M or the Cisco 4700-M.

Note The Cisco 4500-M and Cisco 4700-M support all network processor modules except

the single-port Ethernet network processor module.

Overview of the Cisco 4000 Series Routers 1-5

Series Specifications

For complete configuration information, refer to the Cisco Product Catalog, which is

available on the Web at http://www.cisco.com.

Table 1-1 lists the network processor module interface options available for the Cisco 4000

series when this guide was printed. For current modules, see the configuration note packet

that shipped with your router.

Table 1-1 lists the specifications of the Cisco 4000 series routers.

Interface Options Port Options Part Numbers

Ethernet Single port, dual port, or six port NP-1E=, NP-2E=, NP-6E=

Fast Ethernet Single port NP-1FE=

Synchronous serial Dual port or four port NP-2T=, NP-4T=

Synchronous/asynchronous

serial1

1. Each low-speed port can be individually configured for synchronous or asynchronous.

Dual high-speed ports and

16 low-speed ports

NP-2T16S=

HSSI Single HSSI port NP-1HSSI=

Token Ring Dual port or single port NP-1RV2=, NP-2R=

Multimode FDDI Single attachment or dual attachment NP-1F-D-MM=,

NP-1F-S-M=

Single-mode FDDI Dual attachment NP-1F-D-SS=

BRI Four port or eight port NP-4B=, NP-8B=

G.703 Four port (balanced or unbalanced)2

2. For G.703 and G.704 connections, balanced or unbalanced ports must be matched with the corresponding

balanced or unbalanced cable.

NP-4GB=, NP-4GU=

Channelized T1/ISDN PRI Single channelized T1/PRI port NP-CT1=

Channelized E1/ISDN PRI Single channelized E1/PRI port NP-CE1=

ATM Single ATM port NP-1A-SM=,NP-1A-MM=

, NP-1A-DS3=,

NP-1A-E3=

1-6 Cisco 4000 Series Installation Guide

Series Specifications

Table 1-1 System Specifications

Software Compatibility

Network processor modules must be supported by the appropriate level of system software.

The minimum system software version for the original Cisco 4000 was Software

Release 9.1; for the Cisco 4000-M, Software Release 9.14; for the Cisco 4500, and

Cisco 4500-M, Cisco Internetwork Operating System (Cisco IOS) Release 10.2; for the

Cisco 4700-M, Cisco IOS Release 10.3(10). Table 1-2 lists the minimum system software

versions for network processor modules.

Description Specification

Dimensions (H x W x D) 3.4 x 17.6 x 17.7" (8.6 x 44.7 x 45 cm)

Weight 24 lb (10.9 kg) (including the chassis and network processor

modules)

Power 100–240 VAC, 50–60 Hz, 3.0–1.5A or 40–72 VDC, 5–2.8A

Wire gauge for DC-input

power connections

14 AWG1

1. AWG = American Wire Gauge

Network interface options Ethernet, serial, Token Ring, FDDI, BRI, G.703, channelized

T1/PRI, channelized E1/PRI, ATM

Serial interfaces EIA/TIA-232, EIA/TIA-449, V.35, X.21, NRZ/NRZI, DTE/DCE,

EIA-530 DTE

Console port EIA/TIA-232 DB-25 female connector

Auxiliary port EIA/TIA-232 DB-25 male connector

Nonoperating temperature – 40–185°F (– 40–85°C)

Operating humidity 5–95%, noncondensing

Operating temperature 32–104°F (0–40°C)

Regulatory compliance FCC Class A, FCC Part 68, Canadian DOC Class A, CS-03, UL

1950 2nd edition, CAN/CSA 950-M93, EN60950 with

Amendments 1 and 2, AN/NZS 3260, NOM 019

Additional regulatory compliance is in the Cisco 4000 Series Public

Network Certification document that shipped with your router.)

Overview of the Cisco 4000 Series Routers 1-7

Series Specifications

Table 1-2 Minimum Software Release Version

Note The Cisco 4000 can no longer be ordered, but Cisco IOS Releases 10.0, 10.2, and

10.3 are supported on installed Cisco 4000 routers. The Cisco 4500 can no longer be

ordered, but Cisco IOS Releases 10.1, 10.2, and 10.3 are supported on installed Cisco 4500

routers. The Cisco 4700 can no longer be ordered, but Cisco IOS Release 10.3 is supported

on installed Cisco 4700 routers.

Network Processor Module Type Minimum Software Release Version

Multimode FDDI Software Release 9.14(1)

Fast Ethernet Cisco IOS Release 11.1(5) or 11.2(2)P

Dual Ethernet Software Release 9.14(2)

Six-port Ethernet Cisco IOS Release 10.3(6)

Single-mode FDDI Software Release 9.14(3)

Dual and Version 2 Token Ring Software Release 9.14(5)

Four-port serial Software Release 9.14(6)

2T16S-RS232 and 2T16S-V.35 Cisco IOS Release 11.2(3)P for

synchronous operation

Cisco IOS Release 11.2(4)P for

asynchronous operation

2T16S-X.21 Cisco IOS Release 11.2(5)P

HSSI Cisco IOS Release 11.2(5)P

ISDN BRI Cisco IOS Release 10.2

G.703 Cisco IOS Release 10.2(7)

Channelized T1/ISDN PRI Cisco IOS Release 10.3(4)

Channelized E1/ISDN PRI Cisco IOS Release 10.3(4)

ATM OC-3C Cisco IOS Release 10.3(4)

ATM DS-3 and E3 Cisco IOS Release 11.0(5)

1-8 Cisco 4000 Series Installation Guide

Series Specifications

Table 1-3 lists the processor and memory specifications of the Cisco 4000 series routers.

Overview of the Cisco 4000 Series Routers 1-9

Memory Systems

Table 1-3 Cisco 4000 Series Processor and Memory Specifications

Memory Systems

The Cisco 4000 series memory systems (see Figure 1-2) have the following functions:

•Main memory—Stores the running configuration and routing tables. The Cisco IOS

software executes from main memory.

•Shared memory—Used for packet buffering by the router’s network interfaces.

•Flash memory—Stores the operating system software image. In the Cisco 4500-M and

4700-M, the Flash memory also stores the boot helper software.

•NVRAM—Stores the system configuration file and the virtual configuration register.

•Boot EPROM—In the Cisco 4000-M, erasable programmable read-only memory

(EPROM)-based memory stores the boot helper—a subset of the Cisco IOS

software—and the ROM monitor. In the Cisco 4500-M and Cisco 4700-M, only the

ROM monitor is EPROM based. The boot helper image allows you to boot the router

Description Cisco 4000-M Cisco 4500-M Cisco 4700-M

Processor 40-MHz Motorola

68EC030

100-MHz IDT Orion

RISC1

1. The Orion microprocessor is based on the MIPS R4400 and is pin-compatible.

133-MHz IDT Orion

RISC

Main memory

(DRAM)2

2. DRAM = dynamic random-access memory.

4, 8, 16, or 32 MB 8, 16, or 32 MB 16, 32, or 64 MB

Secondary cache

memory

None None 512 KB

Shared memory

(DRAM)

4 or 16 MB 4, 8, or 16 MB 4, 8, or 16 MB

Flash memory 4 or 8 MB 4, 8, 16, 32, or 64 MB 4, 8, 16, 32, or 64 MB

NVRAM3

3. NVRAM = nonvolatile random-access memory.

128 KB 128 KB 128 KB

Boot ROM 128 KB–8 MB 128–512 KB 128–512 KB

Boot Flash Not available 4–16 MB 4–16 MB

1-10 Cisco 4000 Series Installation Guide

Memory Systems

when Flash memory does not contain a valid system image. In the Cisco 4500-M and

4700-M, the ROM monitor allows you to boot a system image from Flash memory if a

boot helper image is not present in boot Flash memory.

The differences between the memory systems in the Cisco 4000 series allows enhanced

software upgradability in the Cisco 4500-M and Cisco 4700-M.

Note See the appendixes “Cisco 4000 Series Virtual Configuration Register,”

“Cisco 4000-M ROM Monitor,” and “Cisco 4500-M and Cisco 4700-M ROM Monitor”

for more information on the ROM Monitor.

Figure 1-2 Cisco 4000 Series Memory Systems and Software Images

Cisco 4000 and Cisco 4000-M

EPROM-based Flash-memory based

Boot helper

(xboot)

ROM monitor

Cisco IOS

Cisco 4500, Cisco 4500-M, Cisco 4700, and Cisco 4700-M

EPROM-based Flash-memory based

ROM monitor Boot helper

(xboot)

H3537

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