Overview of the Cisco 4000 Series Routers

1
CHAPTER
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
Overview of the Cisco 4000 Series Routers 1-1
•
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
1-2 Cisco 4000 Series Installation Guide
1
2
3
DATA
DATA
DATA
OK
OK
OK
OK
POWER
H3590
SERIES
Overview of the Cisco 4000 Series Routers 1-3
Series Specifications
Series Specifications
Design specifications for the Cisco 4000 series are as follows:
•
•
•
Modular router platform.
•
•
•
•
Hardware thermal alarm to warn of excessively high operating temperature.
Flash memory capability.
User-upgradable network processor modules, shared memory, and processor local
memory.
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.
1-4 Cisco 4000 Series Installation Guide
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.
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
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=
unbalanced)2
G.703
Four port (balanced or
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=
NP-4GB=, NP-4GU=
1. Each low-speed port can be individually configured for synchronous or asynchronous.
2. For G.703 and G.704 connections, balanced or unbalanced ports must be matched with the corresponding
balanced or unbalanced cable.
Table 1-1 lists the specifications of the Cisco 4000 series routers.
Overview of the Cisco 4000 Series Routers 1-5
Series Specifications
Table 1-1
System Specifications
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
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.)
1. AWG = American Wire Gauge
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.
1-6 Cisco 4000 Series Installation Guide
Series Specifications
Table 1-2
Minimum Software Release Version
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)
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.
Overview of the Cisco 4000 Series Routers 1-7
Series Specifications
Table 1-3 lists the processor and memory specifications of the Cisco 4000 series routers.
1-8 Cisco 4000 Series Installation Guide
Memory Systems
Table 1-3
Cisco 4000 Series Processor and Memory Specifications
Description
Cisco 4000-M
Cisco 4500-M
Cisco 4700-M
Processor
40-MHz Motorola
68EC030
100-MHz IDT Orion
RISC1
133-MHz IDT Orion
RISC
Main memory
(DRAM)2
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
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. The Orion microprocessor is based on the MIPS R4400 and is pin-compatible.
2. DRAM = dynamic random-access memory.
3. NVRAM = nonvolatile random-access memory.
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
Overview of the Cisco 4000 Series Routers 1-9
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
Boot helper
(xboot)
Flash-memory based
Cisco IOS
ROM monitor
Cisco 4500, Cisco 4500-M, Cisco 4700, and Cisco 4700-M
ROM monitor
1-10 Cisco 4000 Series Installation Guide
Flash-memory based
Boot helper
(xboot)
Cisco IOS
H3537
EPROM-based
Memory Systems
Memory Requirements in the Cisco 4000 Series
Each module in the Cisco 4000 series can change memory configurations to accommodate
internetworking demands. The memory requirements are affected by the following factors:
•
The number of Cisco IOS software images a system stores can be increase by adding
Flash memory.
•
Network expansion, the use of additional protocols or Cisco IOS services, or newer
Cisco IOS releases may require additional main memory
•
I/O performance or more physical or virtual interfaces may require additional shared
memory.
Shared Memory Requirements
The standard configuration for shared memory is 4 MB for the Cisco 4000 series. 4 MB of
memory is enough for most configurations with fewer than 24 physical or virtual interfaces.
Routers with multiple ISDN BRI network processor modules or with 24 or more physical
and virtual interfaces require 8 to 16 MB of shared memory.
Note The types and numbers of network processor modules installed in a system does not
affect main or flash memory requirements.
Overview of the Cisco 4000 Series Routers 1-11
Memory Systems
Table 1-4
Cisco 4000-M Shared Memory Requirements
Network Processor Module
Per-Module Shared Memory
Requirements
Single-port Ethernet
0.1 MB
Dual-port Ethernet and dual-port
serial
0.2 MB
Dual-port Token Ring, four-port
serial, and G.703/G.704 serial
0.4 MB
Eight-port BRI, CT1/PRI, and
CE1/PRI
1.0 MB
FDDI
2.0 MB
Table 1-5
Cisco 4500-M and Cisco 4700-M Shared Memory Requirements
Network Processor Module
Per-Module Shared
Memory Requirements
Dual-port Ethernet and dual-port serial
0.4 MB
Single-port Fast Ethernet
1.7 MB
Dual-port Token Ring, four-port serial, and G.703/G.704 serial 0.6 MB
Six-port Ethernet, Eight-port BRI, CT1/PRI, and CE1/PRI
1.2 MB
ATM and one FDDI1
2.0 MB
Two
FDDI2
3.0 MB
Dual-port high-speed synchronous serial and 16-port
low-speed synchronous serial
0.6 MB
HSSI
1.0 MB
1. FDDI modules are an exception in that two FDDI modules do not require double the shared memory of one FDDI
module.
2. FDDI modules are an exception in that two FDDI modules do not require double the shared memory of one FDDI
module.
1-12 Cisco 4000 Series Installation Guide
Memory Systems
Note For more information, see product bulletin number 419, “Memory Options for
Cisco 4000 Series,” on the Web at http://www.cisco.com. This bulletin contains
information such as minimum memory requirements for each Cisco IOS image, current
shared memory requirements, and sample configurations.
Main Memory Requirements
The amount of main memory required by a Cisco 4000 series router is affected by the size
of the network and by the access list configurations. However, it is difficult to quantify the
exact main memory requirements based only on network size. Use the following guidelines
to determine approximate main memory requirements.
Note If your memory requirements fall near the upper end of one of the available main
memory options, consider installing the next larger memory option to allow for network
growth.
Main memory requirement guidelines for Cisco 4000 series routers are as follows:
•
The 4 MB of main memory standard in the Cisco 4000-M will only suffice on routers
with knowledge of very small networks and which run very few protocols.
•
The 8 MB of main memory standard in the Cisco 4500-M and the 16 MB of main
memory standard in the Cisco 4700-M generally suffices on routers running Cisco IOS
Release 10.2.
•
16 MB of main memory, optional in the Cisco 4500-M and standard in the Cisco
4700-M, generally suffices on routers using Cisco IOS Release 10.3 or later.
•
The 64 MB main memory option for the Cisco 4700-M is recommended for routers
using Border Gateway Protocol (BGP).
Overview of the Cisco 4000 Series Routers 1-13
Cisco RPS Support
Cisco RPS Support
The Cisco 4000-M, 4500-M, or 4700-M router now supports connection to the Cisco
Redundant Power System (RPS). The router supports an RPS in two ways:
•
•
The chassis ships with an RPS adapter plate installed by the factory
The user installs an RPS adapter plate at the site
For more information, refer to the Cisco RPS Hardware Installation Guide and Installing
the Cisco RPS Adapter Plate in Cisco 4000 Routers. This section provides an overview of
the Cisco RPS and describes basic features.
Figure 1-3 shows the front panel of the Cisco RPS, and Figure 1-4 shows the rear panel.
DC STATUS
1
2
3
4
FAN
Figure 1-4
AC INPUT 1
100-200 V~ 50/60 Hz
10-5 A 1000 W
AC INPUT 2
100-200 V~ 50/60 Hz
10-5 A 1000 W
TEMP
H9588
Cisco RPS Front Panel
Cisco RPS Rear Panel
DC OUTPUT 1
1-14 Cisco 4000 Series Installation Guide
DC OUTPUT 2
DC OUTPUT 3
DC OUTPUT 4
H9589
Figure 1-3
Cisco RPS Support
Caution Use the Cisco RPS (model PWR600-AC-RPS) only to power the external device.
Seul le système d’alimentation redondant Cisco (RPS modèle PWR600-AC-RPS) doit
servir à alimenter le dispositif externe.
Das externe Gerät darf nur mit einer redundanten Stromversorgung von Cisco, Modell
PWR600-AC-RPS, betrieben werden.
Para alimentar el dispositivo externo, usar exclusivamente el sistema de alimentación
redundante (redundant power system = RPS) Cisco, modelo PWR600-AC-RPS.
Overview
The Cisco RPS provides power system redundancy to external devices (such as routers,
switches, or hubs). The system includes two fully redundant AC input power modules and
four DC output power modules for connection to external devices. The Cisco RPS supports
the following power source configurations: quasi-redundant and fully redundant.
Quasi-Redundant Power
The Cisco RPS can provide a quasi-redundant power source for up to four external devices
that use 150W or less each. You can use a one-to-one cable (one connector at each end of
the cable) to connect up to four external devices to the four DC output power modules, as
shown in Figure 1-5. When using one-to-one cables, the power source is quasi-redundant
because there are two AC input power modules for the Cisco RPS and one DC power output
module for each external device. The AC input to the Cisco RPS is fully redundant, but the
DC output to the external devices is not.
Figure 1-5
Quasi-Redundant Configuration
Overview of the Cisco 4000 Series Routers 1-15
Cisco RPS Support
AC input
AC
NM3998
AC
DC
DC
DC
Cisco RPS
DC
DC output
External devices
150W or less
Fully Redundant Power
The Cisco RPS can provide a fully redundant power source for up to two Cisco 4000 series
routers. You can use a two-to-one cable to connect up to two external devices to the four
DC output power modules on the rear panel of the Cisco RPS, as shown in Figure 1-6. The
two-to-one cable is a Y-shaped cable with two connectors at one end of the cable and one
connector at the other end. Two connectors at one end of the Y-shaped cable connect to two
DC output power modules. The other end of the cable connects to one external device.
When using two-to-one cables, the power source is fully redundant because there are two
AC input modules and two DC output power modules connected to each external device. If
any power module fails, there is a full backup.
Figure 1-6
Fully Redundant Configuration
1-16 Cisco 4000 Series Installation Guide
Cisco RPS Support
AC input
AC
NM3999
AC
DC
DC
Cisco RPS
DC
DC
RPS Features
The following features are standard:
•
•
•
•
•
Two AC input power cords
•
•
Redundant cooling
Two fully redundant AC input power modules
Four 150W DC output power modules
Four one-to-one cables (PWR600-AC-RPS-CAB)
Rack-mountable chassis (two rack units in height, 19-inch rack-mount brackets
included)
LEDs for the AC and DC status, fans, and temperature
Overview of the Cisco 4000 Series Routers 1-17
Cisco RPS Support
1-18 Cisco 4000 Series Installation Guide