Olicom CrossFire 8730 User manual

Installation Guide
DOC-7046/1.2
CrossFireTM 8730
Fast Ethernet
Translation Switch

CrossFireTM 8730
Fast Ethernet Translation Switch
Installation Guide

ii
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2
Trademarks
GoCard and the Olicom clasped hands logo are registered trademarks of Olicom A/S. CellDriver,
ClearServer, ClearSession, ClearSight, CrossFire, LANscout, PowerMACH, RapidFire and RapidLAN
are trademarks of Olicom A/S. ClearCare, ClearPartner, ClearStep and ExpertWatch are service marks
of Olicom A/S. Olicom is a registered trademark. Other brand and product names are trademarks,
registered trademarks, service marks or registered service marks of their respective holders.
Copyrights
Olicom A/S reserves the right to modify the information given in this publication without prior notice.
The warranty terms and conditions applicable for your purchase of this equipment are given at the time
of purchase. Please consult your place of purchase for details.
Publication: DOC-7046 v. 1.2
© Copyright Olicom A/S, Denmark, March 1999
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, without the prior written permission of the publisher.
FCC Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15ofthe FCCRules. These limits are designed to provide reasonable protection againstharmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Warning: This is a Class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.
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.
Declaration of Conformity
We Olicom A/S
Nybrovej 114
DK-2800 Lyngby
Denmark
declare under our sole responsibility that the product
CrossFire 8730
to which this declaration relates are in conformity with the following standards or other normative
documents
EN 50082-1
EN 55022
EN 60950 including Amendments
EN 60825-1
following the provisions of 89/336/EEC Directive and 73/23/EEC Directive.

iii
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2
Modifications
If the device is changed or modified without the express approval of Olicom A/S the user may void his
or her authority to operate the equipment.
Safety Notices
➽Danger: To avoid shock hazard, do not connect or disconnect any cables or perform installation,
maintenance, or reconfiguring of the CrossFire 8730 Fast Ethernet Translation Switch during an
electrical storm.
➽Danger: To avoid the possibility of electrical shock, switch power off and unplug the power cord from
the outlet before detaching the power cord from the CrossFire 8730 Fast Ethernet Translation Switch.
➽Danger: Do not open the CrossFire 8730 Fast Ethernet Translation Switch. Dangerous voltages inside.
➽Danger: To avoid shock hazard the power cord must be connected to a properly wired and earthed
receptacle. Any equipment to which the CrossFire 8730 Fast Ethernet Translation Switch will be
attached must also be connected to properly wired and earthed receptacles.
Caution:
Observe the following power cable considerations before you begin installation of the CrossFire 8730
Fast Ethernet Translation Switch.
1. The socket outlet shall be installed near the equipment and shall be easily accessible.
2. To prevent electrical shock, the power cord set used must comply with national regulations.
2a. The female receptacle of the cord must meet CEE-22 requirements.
2b. The cord must be UL listed, CSA labelled, and consist of three conductors with a maximum
of 15 feet in length.
Type SVT or SJT cord sets shall be used for units which stand on a desk or table. Type SJT
cord sets shall be used for units which stand on floor.
2c. The male plug for units operating at 115 VAC shall consist of a parallel blade, grounding
type attachment plug rated 15 A, 125 VAC.
The male plug for units operating at 230 VAC shall consist of a tandem blade, grounding
type attachment plug rated 15 A, 250 VAC.
The male plug for units operating at 230 VAC (outside of the United States and Canada) shall
consist of a grounding type attachment plug rated 15 A, 250 VAC and have the appropriate
safety approvals for the country in which the equipment will be installed.
➽Caution: Support the CrossFire 8730 Fast Ethernet Translation Switch while you are installing the unit
to avoid dropping it on the floor or any equipment beneath it in the rack. The CrossFire 8730 Fast
Ethernet Translation Switch unit weighs approximately 9.5 kg (20.9 lbs).
➽Warning: All RJ45 connectors must only be connected to safety extra low voltage (SELV) circuits like
local area networking (LAN).

iv
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2

v
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2
Table of Contents
1. Introduction 1
About the CrossFire 8730 . . . . . . . . . . . . . . . . . . . . . 1
Front Panel Details. . . . . . . . . . . . . . . . . . . . . . . . . 2
Connectors and Push-Buttons . . . . . . . . . . . . . . . . . 2
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Status and Activity LEDs . . . . . . . . . . . . . . . . . . . . 4
Back Panel Details . . . . . . . . . . . . . . . . . . . . . . . . . 7
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2. Preparing for Installation 17
Safety Recommendations . . . . . . . . . . . . . . . . . . . . 17
Safety with Electricity. . . . . . . . . . . . . . . . . . . . . 17
Preventing Electrostatic Discharge Damage . . . . . . . . . 18
Site Requirements . . . . . . . . . . . . . . . . . . . . . . . . 19
Environment . . . . . . . . . . . . . . . . . . . . . . . . . 19
Chassis Accessibility . . . . . . . . . . . . . . . . . . . . . 19
Cooling and Airflow. . . . . . . . . . . . . . . . . . . . . . 19
Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Unpacking and Inspecting . . . . . . . . . . . . . . . . . . . . 21
Physical Configuration Restrictions . . . . . . . . . . . . . . . 22
Required Network Preparation - Frame Length Limit . . . . 22
Cables and Distances between Devices . . . . . . . . . . . 23
3. Installation 25
Installation Summary . . . . . . . . . . . . . . . . . . . . . . . 25
Unpacking Instructions . . . . . . . . . . . . . . . . . . . . . . 26
Materials Needed for Installation . . . . . . . . . . . . . . . . . 26
Mounting the Chassis . . . . . . . . . . . . . . . . . . . . . . 27
Rack or Cabinet Mounting . . . . . . . . . . . . . . . . . . 27
Table-Mounting. . . . . . . . . . . . . . . . . . . . . . . . 28
Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Connecting the Fast Ethernet Ports . . . . . . . . . . . . . 29
Connecting Devices to the Token-Ring Ports . . . . . . . . 29
Connecting Devices to the Token-Ring Ports Using Building
Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Checking the Installation . . . . . . . . . . . . . . . . . . . . . 31
Applying Power. . . . . . . . . . . . . . . . . . . . . . . . . . 32

vi
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2
4. Switch Access 35
Connecting to the Console. . . . . . . . . . . . . . . . . . . . .36
Communication Problems . . . . . . . . . . . . . . . . . . .38
Diagnostic Screen . . . . . . . . . . . . . . . . . . . . . . .39
General Guidelines for Using the Console Interface. . . . . . . .41
Navigating within the Menus. . . . . . . . . . . . . . . . . .42
Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Configuration... . . . . . . . . . . . . . . . . . . . . . . . .43
Statistics... . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Download/Upload... . . . . . . . . . . . . . . . . . . . . . .43
Reset... . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Exit Console . . . . . . . . . . . . . . . . . . . . . . . . . .43
5. Troubleshooting 45
Obtaining Service . . . . . . . . . . . . . . . . . . . . . . . . .45
Troubleshooting in a Network . . . . . . . . . . . . . . . . . . .45
Start of Troubleshooting Process . . . . . . . . . . . . . . . . .46
Choosing a Troubleshooting Procedure . . . . . . . . . . . . . .47
6. Getting in Touch with Technical Support 53
Before You Contact Olicom Technical Support . . . . . . . . . .53
Hotline Support . . . . . . . . . . . . . . . . . . . . . . . . . .53
Fax Support . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Internet E-Mail . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Anonymous Internet FTP Server . . . . . . . . . . . . . . . . . 54
Internet World Wide Web Server (WWW) . . . . . . . . . . . . .54
Olicom Support WEB . . . . . . . . . . . . . . . . . . . . . . .55
Problem Report Form . . . . . . . . . . . . . . . . . . . . . . .56
Appendix A. Cable and Pin Information 59
Connecting to the Out-of-Band Management Port. . . . . . . . .59
Out-of-Band Management Port and Cable Pin-Outs . . . . .60
Token-Ring Ports . . . . . . . . . . . . . . . . . . . . . . . . .62
Twisted-Pair Cable Pin-Outs . . . . . . . . . . . . . . . . .62
Cabling Recommendations . . . . . . . . . . . . . . . . . .63
Cable Length and Lobe Wiring Rules for Dedicated-Media
Token-Ring Segments. . . . . . . . . . . . . . . . . . . . .64
Cable Length and Lobe Wiring Rules for Shared-Media Token-
Ring Segments . . . . . . . . . . . . . . . . . . . . . . . .65
Fast Ethernet Ports . . . . . . . . . . . . . . . . . . . . . . . .66
Twisted-Pair Cable Pin-Outs . . . . . . . . . . . . . . . . .66
Crossover and Straight-Through Cable Pin-Outs . . . . . . .66

vii
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2
List of Figures
Figure 1. CrossFire 8730 Fast Ethernet Translation Switch. . . . . . 1
Figure 2. Front Panel LEDs, Switches, and Connectors. . . . . . . . 2
Figure 3. The Back Panel . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4. Exposing the Rack Mounting Bracket . . . . . . . . . . . 27
Figure 5. Mounting the Switch in a Rack or Cabinet. . . . . . . . . 28
Figure 6. Connecting Devices to Token-Ring Ports . . . . . . . . . 30
Figure 7. Connecting using Building Wiring . . . . . . . . . . . . . 31
Figure 8. The Back Panel . . . . . . . . . . . . . . . . . . . . . . 32
Figure 9. View of Console Connection—the MANAGEMENT Port . 36
Figure 10. TIA/EIA 232 Null-Modem Cable for the 25-pin Connector. 61
Figure 11. TIA/EIA 232 Null-Modem Cable for the 9-pin Connector . 61
Figure 12. Straight-Through Cable . . . . . . . . . . . . . . . . . . 62
Figure 13. Data Connector-to-RJ-45 Straight-Through Cable . . . . 62
Figure 14. RJ-45 Pin-Out . . . . . . . . . . . . . . . . . . . . . . . 66
Figure 15. Crossover Cable Schematic. . . . . . . . . . . . . . . . 66
Figure 16. Straight-Through Cable Schematic . . . . . . . . . . . . 67
List of Tables
Table 1. Front Panel Connectors and Push-Buttons . . . . . . . . . 2
Table 2. Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . 5
Table 3. Back Panel Connectors . . . . . . . . . . . . . . . . . . . 7
Table 4. Hardware Specifications. . . . . . . . . . . . . . . . . . 11
Table 5. TokenRing Performance Specifications . . . . . . . . . . 12
Table 6. Translation Performance Specifications. . . . . . . . . . 13
Table 7. Software Specifications . . . . . . . . . . . . . . . . . . 14
Table 8. Specifications for Operating Environment . . . . . . . . . 15
Table 9. Console Configuration Settings . . . . . . . . . . . . . . 37
Table 10. Symptom, LED State and Recommended Procedure. . . 47
Table 11. Connecting to the Management Port . . . . . . . . . . . 59
Table 12. Pin-Out of the Management Port . . . . . . . . . . . . . 60
Table 13. Copper Cable Types. . . . . . . . . . . . . . . . . . . . 63
Table 14. Lobe Length for 150 Ohm Shielded Media . . . . . . . . 64
Table 15. Lobe Lengths for 100 Ohm Shielded or Unshielded Cable 64
Table 16. Lobe Lengths for 100 or 120 Ohm Shielded or
Unshielded Cable . . . . . . . . . . . . . . . . . . . . . 64

viii
CrossFire8730Switch Installation Guide,DOC-7046v.1.2
AboutthisGuide
Thisinstallation guidecontainstheinformation neededtoinstalland getstarted
with the CrossFireTM 8730 Fast EthernetTranslationSwitch. Theuser of this guide
isassumed tobeanetwork technicianfamiliar withthe installation and operation
of networking equipment.
In addition tothisinstallation guide, theCrossFire 8730 Switchis delivered with
the on-lineCrossFire8730 FastEthernetTranslationSwitch—ReferenceGuide
enclosed as apdf file on acd-rom.Thecd-rom also contains an on-lineversion of
the installationguide. When youneed information outsidethe scope of the
installation guide,please refer to thereferenceguide.
Thisinstallation guidecontainsthefollowingchapters:
Chapter1, “Introduction”,contains detaileddescriptions of thefront andback
panelofthe CrossFire 8730 Switch aswell asalistoffeatures and specifications.
Chapter 2,“Preparing for Installation”,provides information to be readbefore
the installation.
Chapter3.,“Installation”,containsinstructionsfor installing,connecting and
verifying the operation of theswitch.
Chapter4, “SwitchAccess”, explainshow to set up a connection to access the
switch consoleinterfaceforswitch management.
Chapter5, “Troubleshooting”,givestroubleshooting hints that can beusedto
locateand resolve minor problems.
Chapter6,“Getting inTouch with TechnicalSupport”, listsOlicom’ssupport
servicessuch as hotline support,faxsupport and thesupportweb,aswellasother
servicessuch asbulletin board service, FTP server and e-mail.
Appendix A, “Cable and Pin Information”,listscablesand cabletypesthatcan
beusedwiththe switch.
DocumentConventions
The following conventionsareused in thisguide:
•HELVETICA NARROWindicateskeystrokes, asin
“Press ENTER to select the item.”
•Itemsdisplayedonthe screen, such asmenusandparameters,areindicated
with bold. For example, “Select Configuration...in themain menu.”
❏

1
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
1. Introduction
This chapter introduces the CrossFire 8730 Switch. You will also find detailed
information about the front and back panel as well as lists of features and
specifications.
About the CrossFire 8730
The CrossFire 8730 Switch is designed specifically to reduce the costs and
complexity of migrating from Token-Ring to Fast Ethernet. The switch provides
twenty Token-Ring ports and four Fast Ethernet ports.
The CrossFire 8730 Switch effectively connects Token-Ring workgroups to Fast
Ethernetand givesthebenefitof LAN (Local AreaNetwork) switching toeliminate
congestion and maximise bandwidth.
The CrossFire 8730 Switch supports translational bridging for all key network
protocols (SNA, IP, IPX, NetBios), all native Token-Ring features, including
source routing and VLAN tagging (IEEE 802.1Q), and all network speeds for both
standard Token-Ring (16/4 Mbps) and Ethernet (10/100 Mbps).
Figure 1. CrossFire 8730 Fast Ethernet Translation Switch
32 5 4876109151211 1413 1716 19
18 20
STACK-LINK
ATTA CH
RXTX
DIAGPWR RSTERRMANAGEMENT
21 FAST ETHERNET 21-22 25-2622 2625
1
Fast Ethernet Translation Switch
CrossFire 8730
FAULT
STATUS FAULT STATUS
LINK
100
ACT
LINK
100
ACT
LINK
100
ACT
LINK
100
ACT

2
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
Front Panel Details
The connectors and LEDs (light emitting diodes) on the front panel of the
CrossFire 8730 Switch are displayed in Figure 2. For detailed explanations,
please see the tables and sections below.
Figure 2. Front Panel LEDs, Switches, and Connectors
Connectors and Push-Buttons
The table below gives an overview of the connectors and push-buttons on the front
panel. For detailed descriptions see the following pages in this chapter.
Name Description
Ports 1 to 20 UTP/STP Token-Ring RJ-45 ports.
Ports 19 and 20 can attach to a MAU/CAU RI/RO port.
(MAU=MediaAccessUnit/CAU=ControlledAccessUnit)
Ports 21, 22, 25, and 26 UTP5 10/100 Mpbs Fast Ethernet RJ-45 ports.
MANAGEMENT Console connection with DB-9 connector.
RST Reset—full system reset of software and hardware.
SYS REQ (unlabeled) System Request—initiates asetofsystem request menus
on the attached console. If depressed for more than 5
seconds, the switch will accept download of the main
image from the serial port via the X-modem protocol.
Table 1. Front Panel Connectors and Push-Buttons
32 5 4876109151211 1413 1716 19
18 20
STACK-LINK
ATTACH
RXTX
DIAGPWR RSTERR MANAGEMENT
21 FAST ETHERNET 21-22 25-2622 2625
1
Fast Ethernet Translation Switch
CrossFire 8730
FAULT
STATUS FAULT STATUS
LINK
100
ACT
LINK
100
ACT
LINK
100
ACT
LINK
100
ACT
RST button (reset)
ERR LED
DIAG LED
PWR LED
port
(Out-of-Band
Management)
MANAGEMENT
SysReq button
FAULT LED for
Fast Ethernet port
STATUS LED for
Fast Ethernet port
STACK-LINK ATTACH LED
LINK LED for Fast Ethernet port
100 LED for Fast Ethernet port
ACT LED for Fast Ethernet port
STACK-LINK RX LED
STACK-LINK TX LED
Port ACT LED
Port INS LED
20 Token-Ring UTP/STP ports1-20
4 Fast Ethernet ports (21, 22, 25, 26)

3
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
Token-Ring Ports
•Twenty shielded RJ-45 connectors for Token-Ring connection.
— Support for the IBM Cabling System via 150 ohm, shielded twisted-pair
(STP); or 100/120 ohm unshielded twisted-pair (UTP) via Category 3, 4,
or 5 cables.G
— These portsallow half-duplex (HDX) or full-duplex (FDX) connections to
other switches, hubs, or end nodes.
•The switch will automatically sense what type of Token-Ring connection is
being employed on each of its Token-Ring ports. The connection can be:
— to a shared-media segment via a Token-Ring concentrator (Station mode)
— to another Token-Ring switch
— operating at 4 Mbps or at 16 Mbps
— to a dedicated-media segment, directly to a Token-Ring LAN station
operating in half-duplex or full-duplex mode (Port mode)
The switch will automatically configure each port to operate at the highest possible
capability level. No special crossover cables are required for Token-Ring stations
on dedicated-media segments or for switch-to-switch connections; the same
straight-through cabling is used regardless of the type of connection. This auto-
sense/auto-configure capability of the switch can beoverriddenby explicitconsole
management.
Any of the twenty Token-Ring ports can be configured as a TokenProbe port. It is
used to monitor any one of the other Token-Ring ports. The activity can be traced
by a special passive network analyzer attached to the TokenProbe port.
Fast Ethernet Ports
•Four standard RJ-45 connectors for Fast Ethernet connection
— Support standard 100BASE-TX cabling.
— These portsallow half-duplex (HDX) or full-duplex (FDX) connectionsto
other switches, hubs, or end nodes.
— Automatic speed detection.
— 10/100 Mbps.
The four Fast Ethernet ports can connect to astandard Fast Ethernet adapter or can
act as trunk ports and carry traffic from all of the 63 VLANs it is possible to
configure in the switch.Thisis achievedusingstandardIEEE 802.1Q VLAN frame
tagging (IEEE=Institute of Electrical and Electronics Engineers). For each VLAN,
a virtual port is created which behaves much like an ordinary port.

4
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
MANAGEMENT port
The 9-pin male Out-of-Band Management (OBM) port labeled MANAGEMENT
on the front panel functions as a DTE (Data Terminal Equipment) port.
A terminal can be attached to this port to access the switch console interface for
switch management. The terminal can be attached directly to the port or remotely
via a modem connection.
The MANAGEMENT port automatically detects the baud rate of the terminal to
which it is attached.
Reset Button
The switch has a recessed reset button labelled RST that is located on the front
panel. Pressing the reset button resets the hardware and software and clears all
tables and memory, including the address tables. Pressing the reset button does not
clear the values stored in non-volatile random access memory (NVRAM).
System Request Button
Thisunlabelled recessed button is located on the front panel above the reset button.
Pressing the button causes the System Request menu to appear on the console
device attached to the MANAGEMENT port. Pressing the button for more than
five seconds will initiate a modem download of the main image.
➽Note: The system request button should be used only at the direction of service
personnel. The button is recessed to prevent accidental activation.
Labels
The two labels at the right on the front panel are:
•The MAC (Media Access Control) Address Label:
The unique globally assigned Base MAC-Address of the switch.
•The Switch Number Label:
Blank label for an individual user identification of the switch.
Status and Activity LEDs
The switch features three status LEDs at the left on the front panel that show the
current status of the switch. There are also three activity LEDs at the left that
indicate the activity of the optional stacker link module. Moreover, each Token-
Ring port has two LEDs. These two LEDs are unlabelled and located on the upper
edge of each port. Also, to theright of each of the four Fast Ethernet ports there are
three LEDs. Finally, port 21 and 22 share two status LEDs, as do port 25 and 26.
Refer to Figure 2 in this chapter for the exact locations of all the LEDs.

5
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
Table 2 below lists the front panel LEDs and their meanings.
LED State Meaning
PWR Off The switch is not connected to a power outlet, or
the power supply is faulty.
On The switch is receiving power.
DIAG On The DIAG diagnostics LED is on during the
power-on self-test. During download of a new
software image, the DIAG LED blinks to indicate
the clearing (slow blink) and reloading (faster
blink) of FLASH memory.
ERR On The ERR LED is off during normal operation. If
the LED turns on,an error has occurred.Power the
switch down and up again. The ERR LED should
not turn on again.
Note that this LED turns on if the switch is
powered from a redundant power supply only.
Stack-link TX On or
blinking Data is being transmitted to the stack link.
Stack-link RX On or
blinking Data is being received from the stack link.
Stack-link
ATTACH On A connection has been established to the stack.
Token-Ring Ports:
Left LED on
Token-Ring
port (INS)
On The Token-Ring port is inserted into the ring.
Blinking The port is disabled.
Right LED on
Token-Ring port
(ACT)
On or
blinking Data is being transmitted to or received from the
port.
Fast Ethernet Ports:
STATUS (green) On Diagnostics is in process on port 21/22 or 25/26.
Off No diagnostics is in process on port 21/22 or 25/26.
Table 2. Front Panel LEDs

6
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
FAULT (yellow) On A failure has occured on Fast Ethernet port 21/22
or 25/26.
Off The Fast Ethernet ports are working correctly.
ACT (green) Flashing The port is receiving and/or transmitting frames.
Off Currently no traffic on the port.
100 (green) On The port is in 100 Mbps mode.
Off The port is in 10 Mbps mode.
LINK (green) On The port is active.
Off The port is not inserted.
LED State Meaning
Table 2. Front Panel LEDs

7
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
Back Panel Details
This is the back panel of the CrossFire 8730 Switch:
Figure 3. The Back Panel
Table 3 lists the back panel connectors on the switch.
Name Description
AC connection Standard AC power connection.
Redundant power
supply Connector for the optional redundant power supply unit.
Table 3. Back Panel Connectors
Redundant Power SupplyAC connection
HIGH VOLTAGES
AUTHORIZED PERSONNEL
MAY ONLYBE REMOVED BY
POWER SUPPLY COVER
interference that may cause undesired operation.
Rules. Operation is subject to the following two
conditions. (1) This device may not cause
This device complies with Part 15 of the FCC
accept any interference received, including
harmful interference, and (2) this device must
For selection of power cord
set please refer to the manual
“Guide to Operations”
EXTERNAL DC SUPPLY
200-240VAC, .75A
100-127VAC, 1.5A
~ LINE 50/60Hz
I. T.E.
LISTED C
3C04

8
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
Features
Performance and Advanced Features
•High-speed translation between Token-Ring and Fast Ethernet
•Dedicated Translation Processors
— Four Field Programmable Gate Arrays (FPGA) and two RISC processors
are dedicated to the process of translating between Token-Ring and Fast
Ethernet.This ensures the high-speed, low-latency performance needed to
avoid creating a bottleneck at Fast Ethernet ports.
•Three switching modes:
— Low latency cut-through mode for the Token-Ring ports
—Store and Forward mode for both Token-Ring and Fast Ethernet ports
—Auto (adaptive cut-through) for the Token-Ring ports
•Enhanced bridging modes:
— Transparent Bridging
— Source Route Switching
— Source Route Bridging (SRB)
— Source Route Transparent Bridging (SRT)
•Support for duplicate MAC address schemes
•Automatic port sensing of operating mode and media speed
•Multiple Token-Ring port operation modes:
— Half-duplex concentrator and station
— Full-duplex concentrator and station (DTR, Dedicated Token-Ring)
— RI/RO-like connection
•Fast Ethernet port operation modes
— Half-duplex, 10 or 100 Mbps
— Full-duplex, 10 or 100 Mbps
•Spanning tree protocol (STP) support:
— IEEE 802.1D for all ports
— IBM Spanning Tree Protocol for the Token-Ring ports

9
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
•IEEE 802.1Q support for the Fast Ethernet ports
— This standard frame-tagging protocol is used by the Fast Ethernet ports to
carry frames belonging to different VLANs over the same physical Fast
Ethernet link.
•CrossLink high-speed inter-switch connection using Token-Ring ports
(up to 256 Mbps using eight Token-Ring ports)
•Advanced filtering (MAC address / Protocol)
•VLAN (Virtual LAN) support
•Support for transmission priorities
•Congestion control
•IP multicasts address translation
— IP multicasts translated to a single functional address on the Token-Ring
side, and IP multicasts on the Token-Ring side translatedto multiple MAC
addresses on the Ethernet side.
•IP fragmentation
— IP fragmentation makes it possible to easily connect IP networks between
Token-Ring and Ethernet networks. The IP fragmentation scheme ensures
that IP packets larger than 1500 bytes are split up before transmission to
the Ethernet LAN.
•NetBios addresses translation
— Translation of NetBios functional address from the Token-Ring side to a
specific Ethernet group address, and frames with an additional functional
addresses from Token-Ring side are not forwarded on the Ethernet side.
•Dual home FEP
— A Token-Ring network using Source Route Bridging (SRB) can support
duplicate MAC addresses. This capability has been exploited by SNA
(Systems Network Architecture) gateways, which can provide aredundant
host connection: two gateways have the same MAC address but are on
different rings and due to the source routing discovery process the SNA
sessions are randomly distributed between the two gateways. Sessions are
established between configured MAC addresses.
•Broadcast Suppression
On output, the Fast Ethernet ports must keep the rate ofbroadcast
frames sent to Ethernet within the limit set by the Max
Broadcast Rate (frames/sec) parameter that defines the
maximum broadcast frame count per second.Broadcasts include:

10
CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Introduction
- ARE (All-Routes Explorer), STE (Spanning Tree Explorer)
source routed frames
- unknown destination frames
- frames with the MAC header broadcast bit set
Management
•Extensive and sophisticated network management:
— SNMP management
— Out-of-band management via Telnet and VT100 consoles
— Graphical management applicationforHP OpenView forWindows 95 and
Windows NT (for information on additional management applications for
Unix, please contact your local Olicom representative)
•Support for RMON (Remote Monitoring) and standard MIBs
•Network statistics
•LAN probe port mirroring
•Fault isolation and detection
•Download via TFTP (Trivial File Transfer Protocol) or X-modem of new
switch microcode
•Up- and download of switch configuration via TFTP
Scalability and High Availability
•Up to 5,500 active local LAN stations per group of four Token-Ring ports
(1-4, 5-8, 9-12, 13-16, 17-20)
•Up to 15,000 active LAN stations per Fast Ethernet port
•A maximum of 10,000 active local LAN stations per switch
•Stackable architecture
•Optional redundant power supply
Installation
•Rack or surface mounting
•Plug-and-Play for transparent forwarding:
— Automatic learning of network configuration
— Transparent to high-level protocol
•Automatic sensing and configuration of ports