Extreme Networks 9920 User manual

9920 Network Packet Broker Hardware
Installation Guide
9037024-00 Rev. AB
December 2022

Copyright © 2022 Extreme Networks, Inc.
Legal Notice
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contained in this document and its website without prior notice. The reader should in all cases
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are subject to change without notice.
Trademarks
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For additional information on Extreme Networks trademarks, see: www.extremenetworks.com/
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Open Source Declarations
Some software files have been licensed under certain open source or third-party licenses.
End-user license agreements and open source declarations can be found at: https://
www.extremenetworks.com/support/policies/open-source-declaration/

Table of Contents
Preface......................................................................................................................................................... 6
Audience...........................................................................................................................................................................6
Conventions.................................................................................................................................................................... 6
Text Conventions................................................................................................................................................. 6
Terminology............................................................................................................................................................8
Providing Feedback.................................................................................................................................................... 8
Getting Help....................................................................................................................................................................8
Subscribe to Product Announcements.....................................................................................................9
Documentation and Training.................................................................................................................................. 9
Extreme 9920 Overview.......................................................................................................................... 10
Management...................................................................................................................................................................11
Power Supplies for Use with the Extreme 9920...........................................................................................11
AC power supply................................................................................................................................................ 12
DC power supply................................................................................................................................................ 13
DC power cable...................................................................................................................................................13
Fan Modules for Use with the Extreme 9920............................................................................................... 13
Fan speed.............................................................................................................................................................. 14
Interface Module for Use with the Extreme 9920...................................................................................... 16
Port Partioning.................................................................................................................................................... 18
FEC Configuration Support ......................................................................................................................... 18
Site Preparation.........................................................................................................................................19
Plan Your Site................................................................................................................................................................19
Operating Environment Requirements...........................................................................................................20
Meet Building and Electrical Codes.........................................................................................................20
Set Up the Wiring Closet................................................................................................................................21
Control the Temperature.................................................................................................................................21
Control the Humidity Level...........................................................................................................................22
Protect Your System from ESD (Electrostatic Discharge)............................................................22
Rack Specifications and Recommendations................................................................................................ 23
Mechanical Recommendations for the Rack....................................................................................... 23
Ground the Rack................................................................................................................................................23
Provide Adequate Space for the Rack................................................................................................... 23
Secure the Rack.................................................................................................................................................24
Evaluate and Meet Cable Requirements........................................................................................................ 24
Label Cables and Keep Accurate Records........................................................................................... 24
Install Cable..........................................................................................................................................................25
Use RJ45 Connector Jackets...................................................................................................................... 28
Prevent Radio Frequency Interference (RFI)...................................................................................... 29
Meet Power Requirements.................................................................................................................................... 29
Power Supply Requirements.......................................................................................................................30
9920 Network Packet Broker Hardware Installation Guide iii

Power Cord Requirements...........................................................................................................................30
UPS (Uninterruptible Power Supply) Requirements....................................................................... 30
DC Power Requirements.................................................................................................................................31
Follow Applicable Industry Standards............................................................................................................ 32
Install the Device and the Components................................................................................................ 33
Safety Considerations for Installation..............................................................................................................33
What You Will Need for the Installation......................................................................................................... 34
Install the Extreme 9920 in an Equipment Rack........................................................................................34
Ground the Chassis................................................................................................................................................... 37
Install an Interface Module.................................................................................................................................... 38
Install an AC Power Supply...................................................................................................................................39
Connect an AC Power Supply..................................................................................................................... 41
Install a DC Power Supply..................................................................................................................................... 42
Required Tools and Materials for Installing a DC Power Supply................................................43
Install the DC Power Supply........................................................................................................................43
Connect a DC Power Supply to the Source Voltage.......................................................................44
Turn on the Extreme 9920....................................................................................................................................46
Activate and Verify the Extreme 9920..................................................................................................47
Connect to a Management Console................................................................................................................. 47
Configure the IP Address for the Management VLAN............................................................................47
Replace Components...............................................................................................................................49
Replace a Power Supply........................................................................................................................................ 49
Replace a Fan Module...............................................................................................................................................51
Replace an Interface Module................................................................................................................................52
Monitor the Device...................................................................................................................................54
9920 LEDs.................................................................................................................................................................... 54
Management Port LEDs..........................................................................................................................................55
9920-16C Module LEDs.......................................................................................................................................... 55
Technical Specifications...........................................................................................................................57
9920 Technical Specifications.............................................................................................................................58
Fan and Accoustic Noise...............................................................................................................................58
Fan Speed and Temperature Variation ..................................................................................................59
Power Options....................................................................................................................................................59
CPU and Memory..............................................................................................................................................59
Standards and Environmental Data.........................................................................................................60
AC and DC Power Supply Specifications........................................................................................................61
Fan Module Specifications.................................................................................................................................... 63
9920-16C Module Specifications........................................................................................................................63
Power Cord Requirements for AC-Powered Switches and AC Power Supplies.........................64
Safety and Regulatory Information....................................................................................................... 65
Considerations Before Installing.........................................................................................................................65
General Safety Precautions.................................................................................................................................. 66
Maintenance Safety.................................................................................................................................................. 67
Fiber Optic Ports and Optical Safety.............................................................................................................. 67
GBIC, SFP (Mini-GBIC), QSFP+, XENPAK, and XFP Regulatory Compliance..................... 68
Cable Routing for LAN Systems........................................................................................................................ 68
Install Power Supply Units and Connect Power......................................................................................... 69
Table of Contents
iv 9920 Network Packet Broker Hardware Installation Guide

Select Power Supply Cords.................................................................................................................................. 69
Battery Notice.............................................................................................................................................................70
Battery Warning - Taiwan......................................................................................................................................70
EMC Warnings.............................................................................................................................................................. 71
Taiwan BSMI Warning.......................................................................................................................................71
China CCC Warning...........................................................................................................................................71
Japan (VCCI Class A)................................................................................................................................................71
Korea EMC Statement.............................................................................................................................................. 71
Index...........................................................................................................................................................72
Table of Contents
9920 Network Packet Broker Hardware Installation Guide v

Preface
This guide provides the instructions and supporting information needed to install the Extreme
Networks® Extreme 9920.
The guide includes information about site preparation, device functionality, and device operation.
Audience
This guide is intended for use by network administrators responsible for installing and setting up
network equipment. It assumes a basic working knowledge of:
•Local area networks (LANs)
•Ethernet concepts
•Ethernet switching and bridging concepts
•Routing concepts
•Simple Network Management Protocol (SNMP)
•Basic equipment installation procedures
See the and the for information about configuring Extreme Networks devices.
Note
If the information in an installation note or release note shipped with your Extreme Networks
equipment diers from the information in this guide, follow the installation or release note.
Conventions
This section discusses the conventions used in this guide.
Text Conventions
Unless otherwise noted, information in this document applies to all supported environments for the
products in question. Exceptions, like command keywords associated with a specific software version,
are identified in the text.
When a feature, function, or operation pertains to a specific hardware product, the product name is
used. When features, functions, and operations are the same across an entire product family, such as
ExtremeSwitching switches or SLX routers, the product is referred to as the switch or the router.
69920 Network Packet Broker Hardware Installation Guide

Table 1: Notes and warnings
Icon Notice type Alerts you to...
Tip Helpful tips and notices for using the product
Note Useful information or instructions
Important Important features or instructions
Caution Risk of personal injury, system damage, or loss of data
Warning Risk of severe personal injury
Table 2: Text
Convention Description
screen displays This typeface indicates command syntax, or represents information as
it is displayed on the screen.
The words enter and type When you see the word enter in this guide, you must type something,
and then press the Return or Enter key. Do not press the Return or
Enter key when an instruction simply says type.
Key names Key names are written in boldface, for example Ctrl or Esc. If you must
press two or more keys simultaneously, the key names are linked with a
plus sign (+). Example: Press Ctrl+Alt+Del
Words in italicized type Italics emphasize a point or denote new terms at the place where
they are defined in the text. Italics are also used when referring to
publication titles.
New information. In a PDF, this is searchable text.
Table 3: Command syntax
Convention Description
bold text Bold text indicates command names, keywords, and command options.
italic text Italic text indicates variable content.
[ ] Syntax components displayed within square brackets are optional.
Default responses to system prompts are enclosed in square brackets.
{ x | y | z } A choice of required parameters is enclosed in curly brackets separated
by vertical bars. You must select one of the options.
Preface Text Conventions
9920 Network Packet Broker Hardware Installation Guide 7

Table 3: Command syntax (continued)
Convention Description
x | yA vertical bar separates mutually exclusive elements.
< > Nonprinting characters, such as passwords, are enclosed in angle
brackets.
... Repeat the previous element, for example, member[member...].
\ In command examples, the backslash indicates a “soft” line break.
When a backslash separates two lines of a command input, enter the
entire command at the prompt without the backslash.
Terminology
When features, functionality, or operation is specific to a device family, such as ExtremeSwitching, the
family name is used. Explanations about features and operations that are the same across all product
families simply refer to the product as the device.
Providing Feedback
The Information Development team at Extreme Networks has made every eort to ensure the accuracy
and completeness of this document. We are always striving to improve our documentation and help
you work better, so we want to hear from you. We welcome all feedback, but we especially want to
know about:
•Content errors, or confusing or conflicting information.
•Improvements that would help you find relevant information in the document.
•Broken links or usability issues.
If you would like to provide feedback, you can do so in three ways:
•In a web browser, select the feedback icon and complete the online feedback form.
•Access the feedback form at https://www.extremenetworks.com/documentation-feedback/.
•Email us at [e-mail].
Provide the publication title, part number, and as much detail as possible, including the topic heading
and page number if applicable, as well as your suggestions for improvement.
Getting Help
If you require assistance, contact Extreme Networks using one of the following methods:
Extreme Portal
Search the GTAC (Global Technical Assistance Center) knowledge base; manage support cases and
service contracts; download software; and obtain product licensing, training, and certifications.
The Hub
A forum for Extreme Networks customers to connect with one another, answer questions, and
share ideas and feedback. This community is monitored by Extreme Networks employees, but is not
intended to replace specific guidance from GTAC.
Terminology Preface
89920 Network Packet Broker Hardware Installation Guide

Call GTAC
For immediate support: [phone] (toll-free in U.S. and Canada) or 1 [phone]. For the
support phone number in your country, visit: www.extremenetworks.com/support/contact
Before contacting Extreme Networks for technical support, have the following information ready:
•Your Extreme Networks service contract number, or serial numbers for all involved Extreme
Networks products
•A description of the failure
•A description of any actions already taken to resolve the problem
•A description of your network environment (such as layout, cable type, other relevant environmental
information)
•Network load at the time of trouble (if known)
•The device history (for example, if you have returned the device before, or if this is a recurring
problem)
•Any related RMA (Return Material Authorization) numbers
Subscribe to Product Announcements
You can subscribe to email notifications for product and software release announcements, Field
Notices, and Vulnerability Notices.
1. Go to The Hub.
2. In the list of categories, expand the Product Announcements list.
3. Select a product for which you would like to receive notifications.
4. Select Subscribe.
5. To select additional products, return to the Product Announcements list and repeat steps 3 and 4.
You can modify your product selections or unsubscribe at any time.
Documentation and Training
Find Extreme Networks product information at the following locations:
Current Product Documentation
Release Notes
Hardware and software compatibility for Extreme Networks products
Extreme Optics Compatibility
Other resources such as white papers, data sheets, and case studies
Extreme Networks oers product training courses, both online and in person, as well as specialized
certifications. For details, visit www.extremenetworks.com/education/.
Preface Subscribe to Product Announcements
9920 Network Packet Broker Hardware Installation Guide 9

Extreme 9920 Overview
Power Supplies for Use with the Extreme 9920 on page 11
Fan Modules for Use with the Extreme 9920 on page 13
Interface Module for Use with the Extreme 9920 on page 16
The Extreme 9920 is a next-generation network packet broker solution for pervasive monitoring of
large, fixed service provider networks (SPs) and for both physical and virtual 5G mobile networks
operators (VMNOs). The Extreme 9920 delivers uncompromising insights into the trac traveling
across large service provider networks, assists in understanding user behavior, and helps businesses
protect themselves by centralizing and improving network eciency and ROI across many network
devices.
The Extreme 9920:
•Provides highly scalable network visibility for high-capacity network monitoring.
•Enables wire-speed trac aggregation, regeneration, optimization, and load balancing to deliver
maximum tool productivity.
•Provides selective or full data trac aggregation and regeneration as well as load balancing.
•Facilitates high availability (HA) and business continuity.
•Provides hierarchical scale out architecture to better align function and robustness for the largest
data center and service provider environments.
•Enables intelligent filtering, packet slicing, and decapsulation.
•Works in tandem with Extreme Visibility Manager.
The Extreme 9920 is a high density chassis in a 4U vertically oriented configuration. The Extreme 9920
supports up to 256 multispeed ports ranging from 10 Gb to 100 Gb, and aggregates and monitors up to
12.8 Tbps of total trac. The chassis supports four power supplies and five fan modules, each with 2x80
mm fans. Five fan modules are required. For more information, see Technical Specifications on page 57.
10 9920 Network Packet Broker Hardware Installation Guide

Figure 1: 9920 Network Packet Broker
Management
A Type A USB console port on the front panel of the Extreme 9920 connects the chassis to a laptop
or PC for local management functions. A Mini-B USB console serial port on the front panel can also
be used for management functions. If the USB Type A host port is connected, it is selected over
the Mini-USB port, and system does not accept any input from the Mini-USB port. A DB9 adapter is
required to convert from serial to DB9. There is also an additional adapter that can be used with the
cable to convert to RJ-45.
An Ethernet management port can also connect the system to an out of band management network
for administration. Alternatively, an Ethernet cable can connect this port directly to a laptop to view and
locally manage the chassis configuration. The Ethernet management port supports 10/100/1000 Mbps
speeds.
There is also a Type A USB 2.0 port that can host removable devices like flash drives.
Power Supplies for Use with the Extreme 9920
Four power supply slots support the installation of up to four 1,600 watt power supplies. The Extreme
9920 accommodates AC power supplies, DC power supplies, or a mixture of both. Each power supply
is self enclosed with an integrated cooling fan that vents directly to the rear of the Extreme 9920, to
provide front-to-back cooling airflow.
The following figure shows the rear of the chassis with four power supply modules. The power supply
slots are situated in the four contiguous slots starting from the left-hand side to the bottom and the rear
of the chassis. They are numbered PSU 1 through PSU 4. Power supplies are hot swappable as long as
there are enough power supplies remaining to provide the necessary amount of power. Power needs
vary depending on the number of installed interface modules.
Note
Do not remove the cover from the fifth, or last, power supply slot on the far right to the
bottom and the rear of the chassis. The slot has no function and system airflow is disrupted if
the cover is removed, which aects the cooling of the internal components.
Extreme 9920 Overview Management
9920 Network Packet Broker Hardware Installation Guide 11

Figure 2: View of the power supply units in the rear of the 9920
AC power supply
Figure 3: Front view of a 1600W AC power supply
AC power supply Extreme 9920 Overview
12 9920 Network Packet Broker Hardware Installation Guide

DC power supply
Figure 4: Front view of a 1600W DC power supply
DC power cable
A DC power cord is provided with the DC power supply.
Figure 5: DC power cord provided with the DC power supply
Fan Modules for Use with the Extreme 9920
Five fan module slots accommodate five fan modules. Each fan module contains 2x80 mm fans that
provide front-to-back airflow to cool the chassis. All five fan modules must be installed for proper
cooling. The fans in each module create a negative pressure that is evenly distributed across the
interface modules. If a fan module fails, do not remove it until a replacement is available. When a fan
module is removed, the empty slot diminishes air flow in the places where it is needed, which can cause
interface modules to overheat and shutdown. The system can operate with an inoperable, but present,
fan module indefinitely, but it can only operate for a short period of time with one module removed.
Extreme 9920 Overview DC power supply
9920 Network Packet Broker Hardware Installation Guide 13

The following figure shows the rear of the chassis with all five fan modules. Facing the rear, the fan
modules are numbered Fan 1 through Fan 5 from left-to-right. Fan modules are hot-swappable.
Warning
Risk of personal injury
When you remove a fan module, wait for the fans to spin down before you fully withdraw the
fan module. Be careful to keep your fingers out of the fan blades.
Figure 6: View of the fans in the rear of the 9920
Fan speed
There are thermal sensors inside the chassis that monitor the temperature inside the chassis. The
sensors send information regarding temperature readings to the central controller, which automatically
adjusts the fan module fan speed to maintain the proper temperature. For example, when the central
controller determines that the temperature readings of the sensors is decreasing, the fan module fan
speed also decreases. However, if one of the fan modules fails or is temporarily removed, the central
controller increases the speed of the other fan modules to provide maximum cooling to the chassis. The
chassis can operate with a single fan module failure and still maintain uniform airflow across all module
slots. When all fan modules are operational, the central controller, using internal temperature sensors,
determines the speed of the fans.
Warning
Do not operate the chassis for more than a few minutes with a missing fan module. To ensure
internal chassis air pressure is maintained and to avoid interface modules overheating and
shutting down, leave a failed fan module installed until a replacement is available.
Alarms are triggered when the temperature exceeds the following alarm thresholds—Warning, Critical,
and Shutdown.
Note
%d represents a number for either a sensor, slot, or temperature.
The following list shows the log messages for the three threshold types:
•Warning—Temperature Sensor %d is (%d C) has exceeded the alarm threshold temperature (%d C).
•Critical—Sensor %d slot %d temperature (%d C) exceeded the critical alarm threshold (%d C).
Module will be shut down at (%d C).
•Shutdown—Sensor %d in slot %d temperature (%d C) exceeded the shutdown threshold
temperature (%d C). Module has been powered down.
Fan speed Extreme 9920 Overview
14 9920 Network Packet Broker Hardware Installation Guide

Alarms are cleared when the temperature decreases 2° below the threshold temperature. The following
list shows the log messages when an alarm is cleared:
•Critical threshold—Sensor %d in slot %d overheat critical alarm cleared
•Warning threshold—Temperature Sensor %d overheat temperature alarm cleared
You can use the following command to monitor the current temperature, and view the threshold values
for Warning, Critical, and Shutdown.
show sys-info temperature
The following table provides a description of the various threshold limits:
Table 4: Alarm thresholds
Value Description
Sensor Index Specifies sensor IDs from 1 to 5. There are five sensors on each module.
Current temperature Specifies the current temperature sensor reading.
Warning threshold Specifies the temperature at which an alarm is raised.
Critical threshold Specifies the point at which a log message is generated. Action must be
taken at this point otherwise the module is at risk of reaching the shutdown
threshold.
Shutdown threshold Specifies the critical maximum value when the module shuts down.
Note:
A module must be powered on again when it returns to normal state after
entering a shutdown state.
Normal state is when the temperature is below the Warning threshold value,
and there is no alarm on the system.
The following table shows an example of the threshold values for each temperature sensor in degrees
Celsius (° C):
NPB# show sysinfo sensor all
Sensor Information
Id Name Current(°C) Warning(°C) Critical(°C) Shutdown(°C)
--------------------------------------------------------------------------------------
1 CPU Core 35 85 90
100
2 TF2 MAC 41 75 80
95
3 TF2 Serdes1 49 80 85
95
4 TF2 Serdes2 46 80 85
95
5 TF2 Serdes3 48 80 85
95
6 TF2 Serdes4 47 80 85
95
7 LC1 PHY MAX 65 115 120
125
8 LC1 QSFP MAX 38 63 68
73
9 LC2 PHY MAX 60 115 120
Extreme 9920 Overview Fan speed
9920 Network Packet Broker Hardware Installation Guide 15

125
10 LC2 QSFP MAX 25 63 68
73
11 LC3 PHY MAX 65 115 120
125
12 LC3 QSFP MAX 31 63 68
73
13 LC4 PHY MAX 64 115 120
125
14 LC4 QSFP MAX 30 63 68
73
15 LC5 PHY MAX 66 115 120
125
16 LC5 QSFP MAX 33 63 68
73
17 LC6 PHY MAX 57 115 120
125
18 LC6 QSFP MAX 0 63 68
73
19 LC7 PHY MAX 53 115 120
125
20 LC7 QSFP MAX 0 63 68
73
21 LC8 PHY MAX 52 115 120
125
22 LC8 QSFP MAX 0 63 68
73
23 DIMM1 39 80 85
0
24 DIMM2 35 80 85
0
25 DIMM3 36 80 85
0
26 DIMM4 34 80 85
0
27 SSD 40 80 85 0
Each fan module contains two fans. Use the following command to monitor the status of each fan in all
five cooling modules:
show sys-info fan
NPB# show sysinfo fan
Fan Information
Id Status RPM Percentage SpeedLevel Direction
--------------------------------------------------------------------------------------
1 Up 5800 33 LOW FAN_DIR_F2B
2 Up 5800 33 LOW FAN_DIR_F2B
3 Up 5900 33 LOW FAN_DIR_F2B
4 Up 5800 33 LOW FAN_DIR_F2B
5 Up 5900 33 LOW FAN_DIR_F2B
FAN_DIR_F2B - Fan Airflow Direction is FrontToBack
FanSpeedLevel - <40%[LOW],40-70%[MEDIUM],>70%[HIGH]
Interface Module for Use with the Extreme 9920
Eight vertically oriented interface module slots support the installation of up to eight 9920-16C interface
modules. Each interface module supports up to sixteen 100 Gb ports, for a total of 128 100Gb ports.
Interface Module for Use with the Extreme 9920 Extreme 9920 Overview
16 9920 Network Packet Broker Hardware Installation Guide

There is also one feature slot that is reserved for future use. The 9920-16C interface module is hot-
swappable.
The front panel of the 9920-16C modules contains four LEDs located between the upper and lower
ports. The two LEDs on the left are both green and indicate the channel within the port, which is
indicated by the remaining two LEDs. The font panel also contains a Channel Selector button, which
cycles through the four selectable channels.
esd
Electrostatic discharge (ESD) can damage electronic circuits. Do not touch electronic
hardware unless you wear a grounding wrist strap or other static-dissipating device.
warning
Keep the metal cover plate in place over empty module slots. An empty module slot allows
air into the chassis, which reduces the negative pressure in the chassis. This reduces airflow to
the installed modules.
The following table provides a description of the ports and LED indicators for all IOC models, as shown
in the preceding figure:
1 = 16 port 40Gb/100 Gbps QSFP ports, even ports
(2, 4, 6, 8, 10, 12, and 14) can be patitioned to 4 x
25Gbps or 4 x 10Gbps
4 = Interface module ejector lever
2 = Channel select button 5 = LED status indicators:
Left two LEDs indicate channel.
Right two LEDs indicate port speed and link
status.
LEDs are for every port pair.
3 = Interface module handle release
Extreme 9920 Overview Interface Module for Use with the Extreme 9920
9920 Network Packet Broker Hardware Installation Guide 17

Port Partioning
With port partitioning (or channelization), you can configure a single port to operate as four individual
ports. Port partitioning is supported for the following port speeds:
40 Gbps (QSFP+)
When partitioned, the port operates as four seperate 10 Gbps ports while using QSFP+ cables.
100 Gbps (QSFP28)
When partitioned, the port operates as four seperate 25 Gbps ports while using QSFP28 cables.
When partitioning either 40 Gbps QSFP+ ports or 100 Gbps QSFP28 ports, only the eight even
numbered ports can be partioned. The lower odd numbered port interface is blocked when the higher
even numbered port interface is partioned. You can use 40GBASE-CR4 (copper) or 40GBASE-SR4
(fiber) or 100GBASE-CR4 (copper) or 100GBASE-SR4 (fiber) breakout cables to connect the 40/100
Gigabit Ethernet ports to other servers, storage devices, and switches. For breakout cable details, see
Extreme Networks Pluggable Transceivers Installation Guide.
Ports are not partitioned by default. If partitioning is not enabled, the ports display the existing port
format as “slot/port”. When partitioning is enabled, ports display the format as “slot/port/sub-port” in
the input/output.
FEC Configuration Support
Configure Forward Error Correction (FEC) on a port to obtain error control in data transmission over an
unreliable or noisy channel. You can configure FEC on 100 Gbps ports or on channelized 100 Gbps ports
operating at 25 Gbps speed.
The following FEC options are supported:
•Disabled
•RS-FEC
•FC-FEC
FEC is not supported on a 100 Gbps port operating at 40 Gbps speed or on a management port.
Important
On ports that support FEC configuration, ensure that you configure the same option at both
end points. Otherwise, the link does not come up.
Port Partioning Extreme 9920 Overview
18 9920 Network Packet Broker Hardware Installation Guide

Site Preparation
Plan Your Site on page 19
Operating Environment Requirements on page 20
Rack Specifications and Recommendations on page 23
Evaluate and Meet Cable Requirements on page 24
Meet Power Requirements on page 29
Follow Applicable Industry Standards on page 32
By carefully planning your site, you can maximize the performance of your existing network and ensure
that it is ready to migrate to future networking technologies.
The information in this chapter is intended for the system administrator, network equipment technician,
network manager, or facilities manager responsible for installing and managing the network hardware.
The chapter assumes a working knowledge of local area network (LAN) operations, and a familiarity
with communications protocols that are used on interconnected LANs.
Only qualified service personnel should install, maintain, or remove a switch, chassis, or its components.
Qualified service personnel have had appropriate technical training and experience that is necessary
to be aware of the hazards to which they are exposed when performing a task and of measures to
minimize the danger to themselves or other people.
Note
Before installing or removing any components of the system, and before carrying out any
maintenance procedures, read the safety information in "Technical Specifications."
Plan Your Site
To install your equipment successfully, you should plan the site carefully. The site planning process has
three major parts:
1. Meeting site requirements.
The physical installation site must meet the following requirements for a safe and successful
installation:
•Building and electrical code requirements
•Environmental, safety, and thermal requirements for the equipment you plan to install
•Equipment rack requirements
2. Evaluating and meeting cable requirements.
9920 Network Packet Broker Hardware Installation Guide 19

After examining your physical site and verifying that all environment requirements are met, evaluate
and compare your existing cable plant with the requirements of the Extreme Networks equipment to
determine if you need to install new cables.
3. Meeting power requirements.
To run your equipment safely, you must meet the specific power requirements for each switch and
external power supply unit installed in the system.
For power specifications of the switches, see the specific switch listings in "Technical Specifications."
Operating Environment Requirements
Verify that your site meets all environmental and safety requirements.
Virtually all areas of the United States are regulated by building codes and standards. During the early
planning stages of installing or modifying your network, it is important that you develop a thorough
understanding of the regulations that pertain to your location and industry.
Meet Building and Electrical Codes
Building and electrical codes vary depending on your location. Comply with all code specifications
when planning your site and installing cable. This section lists resources for obtaining additional
information.
For information about major building codes, consult the following organization:
International Code Council (ICC)
5203 Leesburg Pike
Falls Church, VA 22041 USA
www.iccsafe.org
The organizations listed in Table 5 are authorities on electrical codes.
Table 5: Authorities on Electrical Codes
Organization Address Web Site URL
National Electrical Code (NEC) Classification (USA only)
Recognized authority on safe electrical wiring. Federal,
state, and local governments use NEC standards to
establish their own laws, ordinances, and codes on
wiring specifications. The NEC classification is published
by the National Fire Protection Association (NFPA).
NFPA
1 Batterymarch Park
Quincy, MA 02169
USA
www.nfpa.org/
Underwriters’ Laboratory (UL)
Independent research and testing laboratory. UL
evaluates the performance and capability of electrical
wiring and equipment to determine whether they
meet certain safety standards when properly used.
Acceptance is usually indicated by the words “UL
Approved” or “UL Listed.”
UL
333 Pfingsten Road
Northbrook, IL 60062
USA
www.ul.com
Operating Environment Requirements Site Preparation
20 9920 Network Packet Broker Hardware Installation Guide