Alvarion BreezeACCESS LB User guide

November 2003
P/N 213559
LB System Manual
BreezeACCESS™

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BreezeACCESS LB System
Manual
ii

Legal Rights
i
Legal Rights
© Copyright 2003 Alvarion Ltd (“Alvarion”). All rights reserved.
The material contained herein is proprietary, privileged, and
confidential. No disclosure thereof shall be made to third parties
without the express written permission of Alvarion.
Alvarion. reserves the right to alter the equipment specifications and
descriptions in this publication without prior notice. No part of this
publication shall be deemed to be part of any contract or warranty
unless specifically incorporated by reference into such contract or
warrant.
Trade Names
Alvarion, BreezeCOM, WALKair, WALKnet, BreezeNET, BreezeMANAGE,
BreezeACCESS, BreezeLINK, BreezePHONE, MGW, eMGW and/or other
products and/or services referenced here in are either registered
trademarks, trademarks or service marks of Alvarion.
All other names are or may be the trademarks of their respective
owners.
Statement of Conditions
The information contained in this manual is subject to change without
notice. Alvarion shall not be liable for errors contained herein or for
incidental or consequential damages in connection with the furnishing,
performance, or use of this manual or equipment supplied with it.
Warranties and Disclaimers
All Alvarion products purchased from Alvarion or through any of
Alvarion’s authorized resellers are subject to the following warranty and
product liability terms and conditions.
Exclusive Warranty
Alvarion warrants that the Product hardware it supplies and the
tangible media on which any software is installed, under normal use
and conditions, will be free from significant defects in materials and
workmanship for a period of fourteen (14) months from the date of
shipment of a given Product to Purchaser (the “Warranty Period”).
Alvarion will, at its sole option and as Purchaser’s sole remedy, repair or
replace any defective Product in accordance with Alvarion’ standard
RMA procedure.

Legal Rights
BreezeACCESS LB System Manual
ii
Disclaimer
(a) UNITS OF PRODUCT (INCLUDING ALL THE SOFTWARE)
DELIVERED TO PURCHASER HEREUNDER ARE NOT FAULT-
TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR
INTENDED FOR USE OR RESALE IN APPLICATIONS WHERE THE
FAILURE, MALFUNCTION OR INACCURACY OF PRODUCTS CARRIES A
RISK OF DEATH OR BODILY INJURY OR SEVERE PHYSICAL OR
ENVIRONMENTAL DAMAGE (“HIGH RISK ACTIVITIES”). HIGH RISK
ACTIVITIES MAY INCLUDE, BUT ARE NOT LIMITED TO, USE AS PART
OF ON-LINE CONTROL SYSTEMS IN HAZARDOUS ENVIRONMENTS
REQUIRING FAIL-SAFE PERFORMANCE, SUCH AS IN THE
OPERATION OF NUCLEAR FACILITIES, AIRCRAFT NAVIGATION OR
COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, LIFE SUPPORT
MACHINES, WEAPONS SYSTEMS OR OTHER APPLICATIONS
REPRESENTING A SIMILAR DEGREE OF POTENTIAL HAZARD.
ALVARION SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
(b) PURCHASER’S SOLE REMEDY FOR BREACH OF THE EXPRESS
WARRANTIES ABOVE SHALL BE REPLACEMENT OR REFUND OF THE
PURCHASE PRICE AS SPECIFIED ABOVE, AT ALVARION’S OPTION. TO
THE FULLEST EXTENT ALLOWED BY LAW, THE WARRANTIES AND
REMEDIES SET FORTH IN THIS AGREEMENT ARE EXCLUSIVE AND
IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR
IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY
OR OTHERWISE, INCLUDING BUT NOT LIMITED TO WARRANTIES,
TERMS OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, SATISFACTORY QUALITY,
CORRESPONDENCE WITH DESCRIPTION, NON-INFRINGEMENT, AND
ACCURACY OF INFORMATION GENERATED. ALL OF WHICH ARE
EXPRESSLY DISCLAIMED. ALVARION’ WARRANTIES HEREIN RUN
ONLY TO PURCHASER, AND ARE NOT EXTENDED TO ANY THIRD
PARTIES. ALVARION NEITHER ASSUMES NOR AUTHORIZES ANY
OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN
CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR
USE OF ITS PRODUCTS.

Legal Rights
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(c) ALVARION SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS
TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED
DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY
PURCHASER’S OR ANY THIRD PERSON'S MISUSE, NEGLIGENCE,
IMPROPER INSTALLATION OR IMPROPER TESTING, UNAUTHORIZED
ATTEMPTS TO REPAIR, OR ANY OTHER CAUSE BEYOND THE RANGE
OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING OR
OTHER HAZARD.
Limitation of Liability
(a) ALVARION SHALL NOT BE LIABLE TO THE PURCHASER OR TO
ANY THIRD PARTY, FOR ANY LOSS OF PROFITS, LOSS OF USE,
INTERRUPTION OF BUSINESS OR FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, PUNITIVE OR CONSEQUENTIAL DAMAGES OF ANY
KIND, WHETHER ARISING UNDER BREACH OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE AND
WHETHER BASED ON THIS AGREEMENT OR OTHERWISE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
(b) TO THE EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT
SHALL THE LIABILITY FOR DAMAGES HEREUNDER OF ALVARION OR
ITS EMPLOYEES OR AGENTS EXCEED THE PURCHASE PRICE PAID
FOR THE PRODUCT BY PURCHASER, NOR SHALL THE AGGREGATE
LIABILITY FOR DAMAGES TO ALL PARTIES REGARDING ANY
PRODUCT EXCEED THE PURCHASE PRICE PAID FOR THAT
PRODUCT BY THAT PARTY (EXCEPT IN THE CASE OF A BREACH OF A
PARTY’S CONFIDENTIALITY OBLIGATIONS).
Electronic Emission Notices
This device complies with Part 15 of the FCC rules, ETSI 300-328, UL,
UL/C, TUV/GS, and CE.
Operation is subject to the following two conditions:
This device may not cause harmful interference.
This device must accept any interference received, including
interference that may cause undesired operation.

Legal Rights
BreezeACCESS LB System Manual
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v
FCC Radio Frequency Interference Statement
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 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.

Important Notice
v
Important Notice
This user manual is delivered subject to the following conditions and
restrictions:
 This manual contains proprietary information belonging to Alvarion.
Such information is supplied solely for the purpose of assisting
properly authorized users of the respective Alvarion Ltd. products.
 No part of its contents may be used for any other purpose, disclosed
to any person or firm or reproduced by any means, electronic and
mechanical, without the express prior written permission of Alvarion
 The text and graphics are for the purpose of illustration and
reference only. The specifications on which they are based are
subject to change without notice.
 The software described in this document is furnished under a
license. The software may be used or copied only in accordance with
the terms of that license.
 Information in this document is subject to change without notice.
Corporate and individual names and data used in examples herein
are fictitious unless otherwise noted.
 Alvarion reserves the right to alter the equipment specifications and
descriptions in this publication without prior notice. No part of this
publication shall be deemed to be part of any contract or warranty
unless specifically incorporated by reference into such contract or
warranty.
 The information contained herein is merely descriptive in nature,
and does not constitute an offer for the sale of the product described
herein.
 Any changes or modifications of equipment, including opening of the
equipment not expressly approved by Alvarion. will void equipment
warranty and any repair thereafter shall be charged for. It could also
void the user’s authority to operate the equipment.
Some of the equipment provided by Alvarion and specified in this
manual, is manufactured and warranted by third parties. All such
equipment must be installed and handled in full compliance with the
instructions provided by such manufacturers as attached to this
manual or provided thereafter by Alvarion or the manufacturers. Non-
compliance with such instructions may result in serious damage
and/or bodily harm and/or void the user’s authority to operate the
equipment and/or revoke the warranty provided by such manufacturer.

About this Manual
This manual contains the following chapters:
 Chapter 1 – System Description, includes an introduction to
BreezeACCESS LB, its system components and specifications
 Chapter 2 – Installation, describes the installation of the
BreezeACCESS LB Indoor and Outdoor equipment
 Chapter 3 – Commissioning, describes the configuration of the
BreezeACCESS LB system
 Chapter 4 – Diagnostics and Troubleshooting, describes the
troubleshooting of a BreezeACCESS LB system via LED indicator
displays and the web interface
 Chapter 5 – Wireless Broadband, describes the benefits and
advantages of a BreezeACCESS LB system. It also describes the
Link Budget Tools and various scenarios.
 Appendix A – Glossary of Terms, includes a tabular list of
BreezeACCESS LB terms and abbreviations
 Appendix B Peak Power Spectral Density – includes graphical
information about the Power spectral density as measured for the
BreezeACCESS LB system
 Appendix C - CLI Commands – includes tabular lists of General,
System and Configuration commands
 Appendix D - Support For TDM Using Third Party Units
 Appendix E – Antenna Assembly Drawings.

Contents
Chapter 1 - System Description...............................................................1-1
Introducing BreezeACCESS LB ................................................................ 1-2
General ........................................................................................................ 1-2
System Components..................................................................................... 1-2
Networking Equipment................................................................................. 1-3
Management Systems .................................................................................. 1-3
Specifications ............................................................................................... 1-3
Radio......................................................................................................... 1-3
Data Communication ................................................................................ 1-4
Outdoor Unit to Indoor Unit Communication............................................. 1-5
Communication and Management ............................................................. 1-5
Interfaces .................................................................................................. 1-6
Electrical Mechanical and Environmental.................................................. 1-7
Standards Compliance and General .......................................................... 1-8
23 dBi, 9 Degree Antenna Specifications ................................................... 1-8
28 dBi, 4.5 Degree Antenna Specifications ................................................ 1-9
Chapter 2 - Installation .............................................................................2-1
Installation Requirements....................................................................... 2-2
Packing List: BreezeACCESS LB System....................................................... 2-2
The Indoor Unit at a Glance ......................................................................... 2-3
System Status Indicators........................................................................... 2-3
Wireless Status Indicators ......................................................................... 2-4
Ethernet Status Indicators ........................................................................ 2-4
The LAN Interface...................................................................................... 2-5
The Outdoor Unit & Antenna at a Glance ..................................................... 2-6
Equipment Location Guidelines .............................................................. 2-7
Installing the Indoor Unit ..................................................................... 2-10
Installing the Antenna and Outdoor Unit............................................... 2-12
Installing the Outdoor Unit ........................................................................ 2-13

Contents
BreezeACCESS LB System Manual
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Connecting the Antenna Cable.................................................................2-14
Connecting the Ground and IF Cables .....................................................2-14
Running the IF cable................................................................................2-15
Aligning the Antenna ............................................................................ 2-17
Chapter 3 - Commissioning .................................................................... 3-1
Preliminary Configuration....................................................................... 3-2
Local Unit Management .............................................................................3-2
System Configuration and Operation via the Web Interface ............................................... 3-2
System Configuration and Operation via Telnet ................................................................. 3-4
System Configuration and Operation via SNMP................................................................. 3-5
Network Management Overview......................................................................................... 3-5
System Configuration and Operation via Console Port....................................................... 3-6
System Configuration.................................................................................3-8
Ethernet Configuration .................................................................................3-9
Community Configuration ..........................................................................3-11
Trap Configuration .....................................................................................3-11
Wireless Configuration................................................................................3-12
General Information.............................................................................. 3-15
System Status....................................................................................... 3-17
Error Details...............................................................................................3-19
Ethernet LAN Statistics...............................................................................3-19
Wireless Statistics.......................................................................................3-19
Software Upload .................................................................................... 3-21
System Password .................................................................................. 3-23
Product Options.................................................................................... 3-24
System Logs ......................................................................................... 3-25
Chapter 4 - Diagnostics and Troubleshooting ...................................... 4-1
Diagnostics Using the Front Panel........................................................... 4-2
System Power ...............................................................................................4-3
System Fault ................................................................................................4-3
Wireless Link ................................................................................................4-4
Wireless Signal .............................................................................................4-5
Ethernet Link ...............................................................................................4-6
Ethernet Collision .........................................................................................4-7

Contents
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Troubleshooting using The Web Interface................................................ 4-8
Chapter 5 - Wireless Broadband .............................................................5-1
Who Can Benefit From The BreezeACCESS LB System?........................... 5-2
Carriers........................................................................................................ 5-2
Internet Service Providers............................................................................. 5-3
Enterprises .................................................................................................. 5-4
Educational Institutions and Campuses....................................................... 5-4
The BreezeACCESS LB Advantage ........................................................... 5-5
Adaptive Modulation .................................................................................... 5-5
Advanced Error Correction ........................................................................... 5-5
Orthogonal Frequency Division Multiplex (OFDM) Processing ....................... 5-5
Narrow Beam Width ..................................................................................... 5-5
Wireless Facts......................................................................................... 5-7
The Link Budget Tool ................................................................................... 5-7
Deployment Scenarios .......................................................................... 5-15
Co-located Deployments ............................................................................. 5-15
Adjacent Area Deployments........................................................................ 5-16
Appendix A - Glossary of Terms ............................................................ A-1
Appendix B - Peak Power Spectral Density .......................................... B-1
Power spectral density as measured for the BreezeACCESS LB system .... B-2
Appendix C - CLI Commands ................................................................. C-1
General CLI Commands........................................................................... C-2
General Commands...................................................................................... C-2
General Information ..................................................................................... C-4
System Status and Configuration ............................................................ C-5
System Status .............................................................................................. C-5
System Configuration ................................................................................... C-6
Appendix D - Support for TDM using Third Party Units ....................... D-1
Support For TDM Using Third Party Units ............................................... D-2
802.1p .........................................................................................................D-2
Flow Control.................................................................................................D-2
Using a Third Party T1/E1 Unit with BreezeACCESS LB ..............................D-3

Contents
BreezeACCESS LB System Manual
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v
Appendix E - Antenna Assembly............................................................ E-1
Antenna Assembly Drawings.................................................................... E-2
28 dBi, 4.5º Antenna - Vertical Mount Assembly.......................................... E-2
23 dBi, 9º, Antenna - Vertical Mount Assembly............................................ E-3

Figures
Figure 2-1: Front Panel - System........................................................................ 2-3
Figure 2-2: Front Panel – Wireless...................................................................... 2-4
Figure 2-3: Front Panel – Ethernet ..................................................................... 2-4
Figure 2-4: LAN Interface ................................................................................... 2-5
Figure 2-5: Outdoor Unit and Antenna with Vertical Mount ............................... 2-6
Figure 2-6: Radio Deployment Options............................................................... 2-8
Figure 2-7: BreezeACCESS LB System Installation............................................. 2-9
Figure 2-8: Indoor Unit Connected To Switch/Router/Hub .............................. 2-10
Figure 2-9: Indoor Unit Connected To Host Computer...................................... 2-10
Figure 2-10: Indoor unit LAN Ethernet Port RJ-45 Jack................................... 2-11
Figure 2-11: Antenna Polarization Arrow.......................................................... 2-12
Figure 2-12: Holes/Grooves/Screw Holes......................................................... 2-13
Figure 2-13: Installation Using the Special Brackets ........................................ 2-14
Figure 2-14: Outdoor Unit Top Panel ............................................................... 2-15
Figure 2-15: Aligning the Antenna - Vertical Mount ......................................... 2-17
Figure 3-1: Web Interface................................................................................... 3-3
Figure 3-2: User name and Password Dialog Box ............................................... 3-4
Figure 3-3: IP Address of Indoor Unit ................................................................. 3-5
Figure 3-4: Logging in ........................................................................................ 3-5
Figure 3-5: 9-PIN D SUB Connector (Male)......................................................... 3-7
Figure 3-6: System Configuration....................................................................... 3-8
Figure 3-7: SNMP Configuration ...................................................................... 3-10
Figure 3-8: SNMP Community Configuration ................................................... 3-10

Figures
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Figure 3-9: SNMP BreezeACCESS LB General Information ...............................3-15
Figure 3-10: System Status ..............................................................................3-17
Figure 3-11: Software Upgrade .........................................................................3-21
Figure 3-12: Status of the Upgrade File Transfer ..............................................3-22
Figure 3-13: System Password..........................................................................3-23
Figure 3-14: Options Key..................................................................................3-24
Figure 3-15: System Log Screen .......................................................................3-25
Figure 4-1: Front Panel Status LEDs ..................................................................4-2
Figure 5-1: Wireless Extension for Carriers ........................................................5-2
Figure 5-2: Wireless Solution for ISPs.................................................................5-3
Figure 5-3: Wireless Solution for Enterprise .......................................................5-4
Figure 5-4: Fresnel Zone Obstruction .................................................................5-9
Figure 5-5: Fresnel Zone Radius Calculation ....................................................5-10
Figure 5-6: Link Budget for 64 QAM ¾ Code Rate ............................................5-12
Figure 5-7: Fade Margin Graph LOS, OLOS and NLOS .....................................5-13
Figure 5-8: Adjacent Channel Interference........................................................5-15
Figure 5-9: Deployment Scenarios ....................................................................5-16

Tables
Table 1-1 Radio Specifications ........................................................................... 1-3
Table 1-2: Data Communications Specifications ................................................ 1-4
Table 1-3: Outdoor Unit to Indoor Unit Communications ................................... 1-5
Table 1-4: Communication and Management ..................................................... 1-5
Table 1-5: Interfaces .......................................................................................... 1-6
Table 1-6: Electrical Mechanical and Environmental.......................................... 1-7
Table 1-7: Standards Compliance and General................................................... 1-8
Table 1-8: 23 dBi, 9 Degree Antenna Specifications ........................................... 1-8
Table 1-9: 28 dBi, 4.5 Degree Antenna Specifications......................................... 1-9
Table 2-1: Indoor unit LAN Ethernet Port Pin-out............................................. 2-11
Table 3-1: 9-PIN D SUB Connector Pin-Outs (Male)............................................ 3-7
Table 3-2: Wireless Channel Center Frequencies.............................................. 3-12
Table 3-3: Max. Operational Power Per Channel (dBm) vs. Modulation............. 3-13
Table 3-4: RF Status Error Codes..................................................................... 3-18
Table 3-5: Log Messages and Descriptions ....................................................... 3-26
Table 4-1: System Power Diagnostics ................................................................. 4-3
Table 4-2: Wireless Links Diagnostics ................................................................ 4-4
Table 4-3: Wireless Signal Diagnostics ............................................................... 4-5
Table 4-4: Ethernet Link Diagnostics ................................................................. 4-6
Table 4-5: Ethernet Collision Diagnostics........................................................... 4-7
Table 4-6: Web Interface Diagnostics ................................................................. 4-9
Table 5-1: Modulation Scheme vs. Data Rate ..................................................... 5-8
Table 5-2: Availability versus Outage Time....................................................... 5-11
Table 5-3: Radar Horizon Ranges, Different Terminal Heights H1 & H2........... 5-14

Tables
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Chapter 1 - System Description
In this Chapter
This chapter introduces BreezeACCESS LB, and includes the following
sections:
 General, on page 1-2, provides a general introduction of the entire
BreezeACCESS LB system
 System Components, on page 1-2 describes the highlights of the
BreezeACCESS LB system components
 Networking Equipment, on page 1-3, describes the standard
network connections used by the BreezeACCESS LB system
 Management Systems, on page 1-3, introduces the management
and monitoring interface for the BreezeACCESS LB system
 Specifications, on page 1-3, provide system specifications for the
BreezeACCESS LB system components.

Chapter 1 - System Description
BreezeACCESS LB System Manual
1-2
Introducing BreezeACCESS LB
General
The BreezeACCESS LB is a high-performance, high-speed wireless
Ethernet bridge system providing a scalable multi-service platform from
a common equipment infrastructure and management system.
The BreezeACCESS LB system operates in the unlicensed band of 5.8
GHz and includes advanced technologies to address any potential inter-
cell interference issues. The system also features adaptive modulation
in both directions for automatic selection of modulation schemes,
including BPSK, QPSK, 16 and 64 QAM to maximize data rate up to 72
Mbps, and improve spectral efficiency.
The BreezeACCESS LB system is a Class A digital device for use in a
commercial, industrial or business environment.
System Components
The BreezeACCESS LB system is comprised of an Indoor Unit (LB NI-01)
and an Outdoor Unit (LB RE-01).
The LB RE-01 Outdoor Unit can be equipped with a narrow beam
antenna to provide high directivity for long-range operations up to 30
miles (50 km) in line of sight (LOS) conditions, and up to 6 miles (10
km) in NLOS conditions.
The LB NI-01 Indoor unit provides the interface to the customer’s
equipment. The customer's data equipment is connected via a standard
IEEE 802.3 Ethernet 10/100BaseT (RJ 45) interface. The LB NI-01
Indoor unit is connected to the Outdoor Unit via a 75-ohm coaxial
Intermediate Frequency (IF) cable. This cable carries 815 MHz IF signals
between the Indoor and the Outdoor Units, and also transmits
management and control signals between the Indoor and Outdoor
Units. In addition, this cable transmits power (24 VDC) from the Indoor
Unit to the Outdoor Unit.

Introducing BreezeACCESS LB
1-3
Networking Equipment
The BreezeACCESS LB system point-to-point is connected to the
backbone through standard data communication and
telecommunication equipment. The 10/100BaseT ports of the system
can be connected directly to a multi-port router or to an Ethernet
switch connected to a router.
Management Systems
BreezeACCESS LB system components can be managed using a
standard interface. All operator communications with the LB NI-01
Indoor unit are achieved over the Ethernet or Wireless port, using
hypertext transfer protocol (HTTP), Telnet and Local Console Port via
Command Line Interface (CLI), and SNMP.
Specifications
Radio
Table 1-1 Radio Specifications
Parameter Value
Frequency 5.725 – 5.825 GHz
Radio Access
Method
TDD (Time Division Duplex)
Wireless
Transmission
OFDM (Orthogonal Frequency Division Multiplexing)
Channel Spacing 20 MHz
Ch. 1 1A 2 2A 3 3A 4 4A 5
Channel Center
Frequency Freq (GHz) 5.735 5.745 5.755 5.765 5.775 5.785 5.795 5.805 5.815
Antennas 23 dBi, 9o, vertical / horizontal polarization
28 dBi, 4.5o, vertical / horizontal polarization
Range Up to 30 miles / 50 km line-of-sight (LOS)
Antenna Port 50 ohm

Chapter 1 - System Description
BreezeACCESS LB System Manual
1-4
Table 1-1 Radio Specifications
Parameter Value
Output Power
(antenna port) -20 dBm to +20 dBm* (region specific)
RF input at
receiver:
Max: -15 dBm
Over the Air Rate 72 Mbps
Modulated Burst
Data Rate
6, 9, 12, 18, 24, 36, 48, 54 Mbps
Data Rate
Mbps
6 12 18 24 36 48 54Sensitivity,
typical
(dBm at antenna
port,
BER 1E10-6)
Modulation BPSK QPSK QPSK 16
QAM
16
QAM
64
QAM
64
QAM
Modulation BPSK, QPSK, 16 QAM, 64 QAM
Security Over the Air Encryption, Proprietary 64-bit encryption
Coding Rate 1/2, 3/4 and 2/3
OFDM symbol
rate
4 us (microseconds) including guard interval.
MAC Point to point
Automatic Repeat Request (ARQ) error correction
Concatenation/Fragmentation
Data Communication
Table 1-2: Data Communications Specifications
Parameter Value
Standard Compliance IEEE 802.3 CSMA/CD
VLAN support Transparent to IEEE 802.1q
Layer-2 Traffic Prioritization IEEE 802.1p prioritization
Layer-3 Traffic Prioritization Transparent to IP ToS according to RFC791