Cabletron Systems MMAC-Plus 9E423-24 Manuale utente

MMAC-Plus

™

9E423-24

Ethernet SmartSwitch Module

User’s Guide

Notice

Cabletron Systems reserves the right to make changes in speciﬁcations and other information

contained in this document without prior notice. The reader should in all cases consult Cabletron

Systems to determine whether any such changes have been made.

The hardware, ﬁrmware, or software described in this manual is subject to change without notice.

IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT,

SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED

TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION

CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF, KNOWN, OR

SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.

Cabletron Systems, Inc.

P.O. Box 5005

Rochester, NH 03867-0505

Printed in the United States of America

Order Number: 9031668-01 February 1996

SPECTRUM

Remote LANVIEW

and

LANVIEW

are registered trademarks and

MMAC-Plus

trademark of Cabletron Systems, Inc.

Ethernet

is a trademark of Xerox Corporation.

Notice

FCC Notice

This device complies with Part 15 of the FCC rules. Operation is subject to the following two

conditions: (1) this device may not cause harmful interference, and (2) this device must accept any

interference received, including interference that may cause undesired operation.

NOTE:

This equipment has been tested and found to comply with the limits for a Class A digital

device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable

protection against harmful interference when the equipment is operated in a commercial environment.

This equipment uses, generates, and can radiate radio frequency energy and if not installed in

accordance with the operator’s manual, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause interference in which case the user

will be required to correct the interference at his own expense.

WARNING:

Changes or modiﬁcations made to this device which are not expressly approved by the

party responsible for compliance could void the user’s authority to operate the equipment.

VCCI Notice

This equipment is in the 1st Class Category (information equipment to be used in commercial and/or

industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference

by Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial

and/or industrial areas.

Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be

caused to radios and TV receivers, etc.

Read the instructions for correct handling.

iii

Notice

DOC Notice

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital

apparatus set out in the Radio Interference Regulations of the Canadian Department of

Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables

aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique

édicté par le ministère des Communications du Canada.

Contents

Chapter 1 Introduction

Features........................................................................................................................... 1-2

Related Manuals............................................................................................................ 1-5

Getting Help .................................................................................................................. 1-5

Chapter 2 Installing the 9E423-24 Module

Unpacking the Module................................................................................................. 2-1

User Accessible Components ...................................................................................... 2-2

Setting the 9E423-24 Module DIP Switch.................................................................. 2-3

Installing the Module in the MMAC-Plus Chassis .................................................. 2-5

The Reset Switch ........................................................................................................... 2-7

Telco Connector............................................................................................................. 2-8

Chapter 3 Operation

ENIB................................................................................................................................ 3-2

SecureFast Switch.......................................................................................................... 3-2

i960 Core......................................................................................................................... 3-2

INB NIB .......................................................................................................................... 3-3

System Management Buses ......................................................................................... 3-3

SMB-1 Bus ............................................................................................................... 3-3

SMB-10 Bus ............................................................................................................. 3-3

System Diagnostic Controller...................................................................................... 3-4

DC/DC Converter ........................................................................................................ 3-4

INB Interface.................................................................................................................. 3-4

Chapter 4 LANVIEW LEDs

Chapter 5 Speciﬁcations

Technical Speciﬁcations................................................................................................ 5-1

CPU:......................................................................................................................... 5-1

Memory: .................................................................................................................. 5-1

Standards: ............................................................................................................... 5-1

Network Interfaces: ............................................................................................... 5-1

Safety............................................................................................................................... 5-2

Service............................................................................................................................. 5-2

Contents

Physical...........................................................................................................................5-2

Dimensions: ............................................................................................................5-2

Weight:.....................................................................................................................5-2

Environment: ..........................................................................................................5-3

1-1

Chapter 1

Introduction

The 9E423-24 (Figure 1-1) is a 25 port switching module. Two RJ-71 Telco

connectors support 24 10BASE-T ports with the 25th port connecting to the

Internal Network Bus (INB) backplane interface. This module uses a SmartSwitch

ASIC design and an advanced Intel i960

microprocessor. This microprocessor

provides a platform for all management functions within a scalable RISC-Based

Architecture.

The module can operate in two modes; as a 24 port Ethernet traditional switch

(using 802.1d standards) with a high speed backbone connection or as a Secure

Fast Switch (SFS) with 24 Ethernet connections. Each port of the 9E423-24 can be

conﬁgured to operate in the Full Duplex mode. This conﬁguration allows each

port to provide a full 20 Mbps of bandwidth for ﬁle servers or high end user

intensive work stations.

Network management information is available through a variety of methods. All

information based on Simple Network Management Protocol (SNMP) is

accessible either via an in-band (Front Panel port), Side Band (SMB-10), or via the

Environmental Module’s COM ports. Serial Line Internet Protocol (SLIP) or

Point-to-Point Protocol (PPP) are supported by the Environmental Module’s

COM ports. For more information on the SMB-10, SLIP or PPP refer to the

MMAC-Plus Local Management User’s Guide.

The 9E423-24 also features front panel LANVIEW™ Diagnostic LED’s to offer at-

a-glance status information about each front panel port as well as the operation of

the overall module.

Ethernet networks are connected to the 9E423-24 module through two standard

RJ-71 Telco connectors built in the front of the module. Each connector provides

12 Ethernet 10BASE-T connections for UTP and STP links up to 100 meters long.

Introduction

1-2

Features

Processor

The 9E423-24 is equipped with an advanced Intel i960 microprocessor. This

microprocessor provides a platform for all management functions such as

Spanning Tree, RMON, and MIB support within a scalable RISC-Based

architecture.

Fast Packet Switching

The 9E423-24 incorporates a hardware based switch design referred to as the

SmartSwitch ASIC, a collection of custom ASICs designed speciﬁcally for high

speed switching. Because all frame translation, address lookups, and forwarding

decisions are performed in hardware, the 9E423-24 can obtain a throughput

performance of greater than 750K pps.

Management

The 9E423-24 features SNMP for local and remote management. Local

management is provided through the RS-232 Com ports on the MMAC-Plus

Environmental Module using a standard VT-220 terminal or emulator. Remote

management is possible through Cabletron’s SPECTRUM or any SNMP

compliant management tool. Included as management features are the IETF

Standard Management Information Base (MIBs) RMON (RFC1271), IETF MIB II

(RFC-1213), IETF Bridge MIB (RFC-1493), and a host of other Cabletron enterprise

MIBs. The 9E423-24 also offers the user a wide variety of statistical network

management information to enhance network planning and troubleshooting. This

module provides information for each front panel Ethernet 10BASE-T port,

including packet counts along with errored frame information such as collisions,

CRCs, and Giants, via a variety of industry standard and private MIBS. Industry

standard IEEE 802.1d bridging, including Spanning Tree Algorithm, is supported.

Connectivity

The 9E423-24 module has one interface to the INB and two front panel RJ-71 Telco

connectors. The INB interface is a ﬁxed connection to INB-2 which allows the

9E423-24 to communicate with other MMAC-Plus modules supporting various

LAN technologies including: Token Ring, FDDI, Ethernet, WAN and ATM. Each

front panel RJ-71 connectors provide 12 Ethernet 10BASE-T connections for UTP

and STP links up to 100 meters in length.

Standard Ethernet/Full Duplex Operation

The 9E423-24 Module supports 10BASE-T. The use of 10BASE-T allows each port

on the 9E423-24 Module to be conﬁgured, through local and or remote

management (SNMP), to operate in standard Ethernet mode (simplex) or full

duplex mode. Operating in standard Ethernet mode limits bandwidth to 10 Mbps

per port, while operating in duplex mode doubles bandwidth from 10 Mbps to 20

Mbps per port.

1-3

Features

Management Information Base (MIB) Support

The 9E423-24 provides MIB support including:

• RMON (RFC-1271)

• IETF MIB II (RFC-1213)

• IETF Bridge MIB (RFC-1493)

and a host of other Cabletron Enterprise MIBs.

INB

The 9E423-24 attaches to INB2 of the MMAC-Plus Backplane. The INB has a

capacity of 2 Gbps to interconnect MMAC-Plus modules supporting Ethernet,

FDDI, Token Ring, WAN and ATM networks. The INB transports ﬁxed length

data blocks between modules in the MMAC-Plus hub using a Time Division

Multiplexing (TDM) design. Within the INB there is a 64 bit wide data bus and an

eight bit control management bus. Each module that attaches to the INB has an

INB Network Interface Block (NIB). The INB NIB converts canonical frames to

ﬁxed length data blocks for transmission onto the INB. For data blocks received

from the INB, the INB NIB reassembles the data blocks received from the INB

back into canonical frames for transmission to the SmartSwitch ASIC and

ultimately to the front panel port. The INB can time slice its bandwidth using one

of three methods. The default method is standard TDM round-robin bandwidth

arbitration, the second method is for modules to reserve a speciﬁc amount of

bandwidth using MONARCH, Cabletron’s INB Bandwidth Arbitrator, the third

method permits the lowest slot number to use any bandwidth not used by the

previous two methods.

LANVIEW LEDs

The 9E423-24 uses LANVIEW – the Cabletron Systems built-in visual diagnostic

and status monitoring system. With LANVIEW LEDs, you can quickly identify, at

a glance, system status as well as the device, port, and physical layer status. Two

LEDs indicate the transmission and reception of data from the INB MMAC-Plus

backplane connection. Each of the 12 Ethernet front panel ports features two

LEDs per port to indicate the port’s Administrative status (enabled/disabled),

LINK status (Link/Nolink), and Data Activity (receiving and transmitting data).

For a complete list of supported MIBs, refer to the release notes provided in the

9E423-24 package.

NOTE

Introduction

1-4

Figure 1-1. The 9E423-24 Module

SMB CPU

INB

9E423-24

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