" NOTICEThis publication contains information proprietary to Intermec Technologies Corpo-
ration. It is being supplied to you with the express understanding that the information contained herein is for the benefit of the contracting party only, and may
not be copied, distributed, or displayed to third parties without the express written consent of Intermec Technologies Corporation, and shall be returned to Intermec Technologies Corporation upon written request. If a purchase, license, or
nondisclosure agreement has been executed, the terms of that agreement shall
govern this document.
This publication is furnished for information only, and the information in it is
subject to change without notice. Although every effort has been made to provide
complete and accurate information, Intermec Technologies Corporation assumes
no responsibility or liability for any errors or inaccuracies that may appear in this
document.
We welcome your comments concerning this publication. Although every effort
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problem, please describe it briefly and include the book title and part number, as
well as the paragraph or figure number and the page number.
Send your comments to:
Intermec Technologies Corporation
Publications Department
550 Second Street SE
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INTERMEC, NORAND, PEN*KEY ,and TRAKKER are registered trademarks
and ANTARES and JANUS are trademarks of Intermec Technologies Corporation.
Ó1996 Intermec Technologies Corporation. All rights reserved.
This publication printed on recycled paper.
Acknowledgments
Portions of this product contain software which is licensed from and is copyrighted
by Epilogue Technology Corporation, 1988--1995, all rights reserved.
DECnet and VT are registered trademarks of Digital Equipment Corporation.
Ethernet is a trademark of Xerox Corporation.
Hewlett-Packard and HP are registered trademarks and HP OpenView is a
trademark of Hewlett-Packard Company.
Microsoft is a registered trademark of Microsoft Corporation.
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Novell and NetWare are registered trademarks and IPX and SPX are trademarks
of Novell, Inc.
PC AT is a registered trademark of International Business Machines Corporation.
PROCOMM and PROCOMM PLUS are registered trademarks of DataStorm
Technologies, Inc.
Proxim and RangeLAN are trademarks of Proxim, Inc.
FCC Computer Compliance
" NOTICEThis equipment meets Class B digital device limits per Part 15 of FCC Rules.
These limits protect against interference in a residential area. It emits, uses, and
can radiate radio frequency energy. If you do not install and use the equipment
according to its instructions, it may interfere with radio signals. However, there is
no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning our equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
"Reorient or relocate the radio or television receiving antenna.
"Increase the separation between the computer equipment and receiver.
"Connect the equipment into an outlet on a circuit different from that to
which the radio or television receiver is connected.
"Consult the dealer or an experienced radio or television technician for
help.
FCC Spread Spectrum Radio Certification
" NOTICEThis device is certified to operate under Part 15, Subpart C, Section 15.247 of the
FCC rules for Intentional Radiation Products. This certification includes Docket
87-389 covering rules effective June 1994. It may not cause interference to
authorized radio communication devices, and must accept any interference caused
by those devices.
Antenna Requirements
" NOTICEFCC rules section 15.203 and Canada’s RSS-210 require that this device be oper-
ated using an antenna furnished by Intermec Technologies Corporation. The antenna coupling on this product has been designed to accept only antennas
manufactured by us. Use of an antenna other than that furnished with the equipment is prohibited by FCC and Industry Canada rules.
Canadian Computer Compliance
This Class B digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.
Cet appareil numerique de la classe B respecte toutes les exigences du Reglement
sur le material boilleur du Canada.
Canadian Spread Spectrum Radio Certification
" NOTICEThis device complies with RSS-210 of Industry Canada. Operation is subject to
the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause
undesired operation of the device.
Canadian 2.4 GHz Radio License
" NOTICEThis device requires a radio license, unless it is installed totally inside a building.
(Users must obtain this license)
Une licence radio est requise pour ces dispositifs, sauf pour ceux installés tout à
fait à l’intérieur d’un bâtiment. (Il faut que l’utilisateur obtienne cette licence.)
Telephone Installation Warning Notices
The following notices apply to equipment that may be connected to telephone lines
or systems. For your personal safety, and to protect this equipment from potential
electrical or physical damage, do NOT connect equipment to telephone lines or
data communication equipment unless the following warnings have been read,
understood, and complied with.
"Never install telephone wiring during a lightning storm.
"Never install telephone jacks in wet locations unless the jack is specifi-
cally designed for wet locations.
"Never touch uninsulated telephone wires or terminals unless the tele-
phone line has been disconnected at the network interface.
"Use caution when installing or modifying telephone lines.
"Avoid using telephone (other than cordless type) during an electrical
storm. There may be a remote risk of electric shock from lightning.
"Do not use the telephone to report a gas leak in the vicinity of the leak.
Installation du téléphone : avertissements
Les avertissements qui suivent s’appliquent à tout équipement qui peut être
branché aux lignes ou systèmes téléphoniques. Pour votre sécurité personnelle et
pour protéger l’équipement de tout dommage électrique ou physique potentiel, NE
PAS brancher un ordinateur tablette électronique ou ses périphériques aux lignes
téléphoniques ou équipements avant que les avertissements suivants aient été lus,
compris et observés :
"Ne jamais installer de câblage téléphonique pendant un orage électrique.
"Ne jamais installer de prise téléphonique dans un endroit humide à
moins que la prise ait été spécifiquement conçue pour être utilisée dans
les endroits humides.
"Ne jamais toucher les fils de téléphone ou de l’équipement terminal non
isolés à moins que la ligne téléphonique n’ait été débranchée de l’interface réseau.
"User de prudence lors de l’installation ou de la modification de lignes
téléphoniques.
"Éviter d’utiliser un téléphone (autre qu’un appareil téléphonique sans
fil) pendant un orage électrique. Il pourrait y avoir un faible risque d’électrocution par la foudre.
"Ne pas utiliser le téléphone afin de signaler une fuite de gaz à proximité
de la fuite.
B
CAUTION:Intermec Technologies Corporation suggests you buy cables from us
to connect with other devices. Our cables are safe, meet FCC rules,
and suit our products. Other cables may not be tested. They may
cause problems from electrostatic discharge or induced energy. Our
warranties do not cover loss, injury, or damage from other cables.
This user’s guide describes the installation, setup, and
maintenance of the 6710 Access Point. This guide covers
access point FLASH version 1.27 or greater and ROM
version 1.12 or greater .
Norand Corporation is now part of Intermec Technologies
Corporation. As part of our continuing efforts to offer the
broadest range of system solutions in the industry, the 6710
Access Point and other open wireless local area network
(LAN) components have been merged into the INTERMEC
Integrated Network Communications Architecture (INCA).
Where appropriate, we have continued to use the Norand
name in references to the open wireless LAN to maintain
continuity with existing product in the field.
R
Organization
This Preface describes the intended audience for this guide,
lists related publications, and tells how to contact the
Customer Response Center . Other sections do the
following:
Section 2,
“Features and
Functional
Overview”
Describes the access point and how
it operates on the open wireless
LAN. It also describes access point
components.
6710 Access Point User’s Guide1-1
SECTION 1 " Preface
Section 3,
“Installation”
Helps you prepare your site before
you install the access point, and
shows how to connect the access
point to 10BASE-T, 10BASE2, and
10BASE5 Ethernet.
Section 4,
“Configuration”
Describes how to create a
communications session with the
access point, access FLASH and
ROM, and set up the access point
through its configuration menus.
Section 5,
“Software Download”
Describes file system methodology
and the functional characteristics
of the software download process.
Section 6,
“Indicator Lights”
Describes the access point’s
indicator lights and contains
troubleshooting tips.
Appendixes contain supplemental information:
Appendix ALists mechanical, electrical, and
environmental specifications for
the access point.
Appendix BLists specifications and antennas
for the WLIF radio.
Appendix CLists specifications and antennas
for the 900 MHz radio.
Appendix DLists specifications and antennas
for the synthesized UHF radio. It
also discusses UHF technology.
Appendix EDescribes OWL/IP (IP tunneling).
Appendix FShows port and cable pin-outs.
Appendix GDescribes the 6710 Management
The glossary at the end of this manual lists network terms.
1-26710 Access Point User’s Guide
Information Base (MIB).
Intended Audience
This user’s guide is intended for these audiences:
" Network administrator who is familiar with various
types and configurations of computer networks, how
they work, and the terminology used when discussing
them.
" Hardware installer who is responsible for performing
the physical installation of the access point and any
related hardware that might be required.
Related Publications
The following publications are available. They include
information about hardware and software products related
to or used with the access point and the network on which it
operates.
SECTION 1 " Preface
Numbers in parentheses after the title indicate the
publication’s part number. Contact your Sales
Representative for ordering information.
Wireless Station User’s Guides
Wireless station user’s guides describe how to set up,
operate, and maintain radio terminals in each series of
terminal. Specific manuals are:
PEN*KEYRModel 6400 User’s Guide (961-047-093)
PEN*KEY Model 6500/6550 User’s Guide (961-047-099)
RT1100 Radio Terminal User’s Guide (961-047-069)
RT1700 Radio Terminal User’s Guide (961-047-068)
RT5900 Radio Terminal User’s Guide (961-047-121)
6710 Access Point User’s Guide1-3
SECTION 1 " Preface
System Management Publications
NORAND Open W ireless LAN with HP OpenView for
W indows User’s Guide (961-051-009)
This guide describes how to install and use the OpenView
for Windows network management platform by
Hewlett-Packard (HP).
OWL View for HP OpenView for UNIX User’s Guide
(961-051-01 1)
This guide describes how to install and use the OWLView
for HP OpenView for UNIX network management platform.
OWL View for HP OpenView for Windows User’s Guide
(961-051-010)
This guide describes how to install and use the OWLView
for HP OpenView for Windows network management
platform.
Customer Support
The goal of Intermec Technologies Corporation is 100
percent customer satisfaction. If you would like more
information about the access point or other open wireless
LAN system components, contact us through the Customer
Response Center .
In North America, call: 800-221-9236 or 319-369-3533
1-46710 Access Point User’s Guide
Section 2
Features and Functional Overview
""""""""""""""""""""""""""""
This section describes the 6710 Access Point and how it
operates on the open wireless LAN. This section also
describes access point components.
Description
The 6710 Access Point provides transparent, wireless
communications between a wired Ethernet LAN and
wireless stations. Figure 2-1 shows current designs;
information in this user’s guide applies to both designs.
Figure 2-1
6710 Access Points
6710 Access Point User’s Guide2-1
SECTION 2 " Features and Functional Overview
The access point functions as a 4-port translating bridge.
Functionality within the access point can be partitioned
into two major functional blocks: bridging functionality
and management functionality. Bridging functions pertain
to the forwarding of data through the access point.
Management functionality involves configuration, software
upgrade, and network management.
Figure 2-2 is a simplified diagram showing the functions
within the access point.
Management and ConfigurationBridging
MIB
SNMP
DHCP
TFTPHTTPTelnet
File
System
RS-232 Diagnostics Port
Agent
TCP/IP
Device
Configuration
Forwarding
Database
Network
Organization
Figure 2-2
6710 Access Point Functions
Bridging Functionality
General Concepts
Bridges are common components in wired LANs. Bridges
are devices that join two or more LAN segments. This
provides the appearance of a single LAN segment to the
protocols and applications that operate within the LAN.
Port 2
(NIC 2)
Bridging
(Ethernet)
AUI10BASE210BASE-T
Port 3
(NIC 1)
Port 1
Port 4
(OWL/IP)
Proxy ARP
2-26710 Access Point User’s Guide
SECTION 2 " Features and Functional Overview
Bridges operate at the Media Access Control (MAC)
sublayer of the Data Link Layer (Layer 2) of the
International Organization for Standardization (ISO)
protocol model. Operating at the MAC layer allows bridges
to operate transparently to commonly used network
protocols such as TCP/IP, Novell SPX/IPX, NetBEUI, and
DECnet.
In wired LANs, bridges do the following:
" Segment traffic for better efficiency and performance.
" Extend the reach of LANs when cable length or node
limits have been reached.
" Translate between different LAN types such as IEEE
802.3 Ethernet and 802.5 Token Ring.
A LAN environment normally consists of a collection of
nodes or stations, each identified by a unique 48-bit
physical address (also called an IEEE address or MAC
address). Data is sent on the LAN as frames or packets
that contain the source address of the station sending the
frame, and the destination address of the recipient station.
A bridge has at least two ports, each connected to a
different LAN segment. Bridges learn which source
addresses are generating traffic on each of their ports. If
the bridge receives a frame with a destination address
corresponding to a source address it has seen on another
port, it forwards the frame to the port. If it receives a
frame where the source and destination addresses are on
the same port, it ignores (drops) the frame, since the
destination node receives the original transmission.
Generally, if a bridge receives a frame for an unknown
destination address on any one port, it floods the frame on
all other ports.
6710 Access Point User’s Guide2-3
SECTION 2 " Features and Functional Overview
Access Point Bridging Layer
The 6710 Access Point functions as a bridge with up to four
ports:
" An Ethernet port.
" One or two radio ports.
" An Open Wireless LAN/Internet Protocol (OWL/IP)
port.
The access point is a translating bridge because it forwards
frames between Ethernet and wireless media that have
unique physical and MAC protocol implementations. The
access point implements the basic learning and forwarding
functions of a simple wired LAN bridge. It also includes
additional functionality to address unique problems in
wireless LANs.
Significant functions supported at the bridging layer
include network organization, support for roaming and
power-managed stations, and programmable flooding levels.
Network Organization
Open wireless LAN networks may be complex, supporting:
" Small or large numbers of access points on a single
wired LAN backbone.
" Stations that roam between coverage areas and
employ power management to improve battery life.
More complex topologies include the following:
" Range extension through wireless access points, which
are not connected to the wired LAN backbone.
" Secondary LANs (connection of wired LAN segments
by wireless links).
" Mixed radio frequency (RF) media.
" Operation over multiple IP subnets.
" Multiple, independent wireless LANs on one wired
LAN backbone.
2-46710 Access Point User’s Guide
SECTION 2 " Features and Functional Overview
Access points automatically configure into a self-organized
network using a spanning tree topology. They
automatically reconfigure the network to maintain reliable
operation as devices are added or removed, or in the event
of some types of wired LAN failure. The spanning tree
provides efficient, loop-free forwarding of frames through
the network and rapid roaming of mobile stations within
the network.
The spanning tree is initiated by the super root, an access
point that coordinates the network and distributes common
system parameters to other access points and stations. The
super root is elected from a group of access points
designated at the time of installation. The election process
also occurs in the event of a super root failure, preventing a
single point of failure.
Forwarding
The bridge maintains a forwarding database of all physical
station addresses known to the access point, and the correct
port for each address. This database makes efficient
forwarding decisions in the bridging software.
The database is updated through monitoring addresses on
each port, and by messages exchanged between access
points when stations roam. The database also includes the
power management status of each station, supporting the
pending message feature of the network.
Pending Messages
Wireless stations may use power management to maintain
battery life. These stations wake up periodically to receive
messages that may have arrived while their radio was
powered down. The bridging software provides a pending
message delivery service, allowing frames to be held until
the station is ready to receive them.
6710 Access Point User’s Guide2-5
SECTION 2 " Features and Functional Overview
Flooding Configurations
Standard LAN bridges flood frames on all ports when the
destination address is unknown. Additionally, many
network protocols use multicast addressing for connection
and status communications. A multicast frame is a special
type of frame destined for more than one physical address.
Standard bridges always flood multicast frames.
Most wireless media supported in the access point operate
at lower media speeds than Ethernet. Indiscriminate
flooding from a busy Ethernet backbone to a wireless
medium can consume a substantial portion of the available
wireless bandwidth. This reduces system performance even
though flooded frames are frequently not intended for
stations on a given wireless segment.
To allow performance tuning, the access point provides
separate flooding control options for both unicast (single
physical address) and multicast frames. Access points
serving as designated bridges connecting wired LAN
segments may be configured to use different flooding
settings than access points serving only wireless stations.
Two of the wireless media supported in the access point —
synthesized UHF (S-UHF) and 900 MHz — provide reliable
attach mechanisms, which guarantee that wireless stations
are always in the access point’s forwarding database.
Unicast flooding is never required for these stations.
The Wireless LAN Interoperability Forum (WLIF) 2.4 GHz
option also provides a reliable attach mechanism for
stations using the NORANDRNetwork Layer (NNL)
terminal emulation network protocol. Multicast flooding
levels are set for individual networks based on the needs of
wireless stations to receive multicast frames. For networks
with IP wireless stations only, the Proxy ARP Server
provides an option to enabling multicast flooding.
2-66710 Access Point User’s Guide
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