Juniper EX4600 User Manual
EX4600 Switch Hardware Guide
Published
2020-12-16
Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc. in
the United States and other countries. All other trademarks, service marks, registered marks, or registered service marks
are the property of their respective owners.
Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right
to change, modify, transfer, or otherwise revise this publication without notice.
EX4600 Switch Hardware Guide
Copyright © 2020 Juniper Networks, Inc. All rights reserved.
The information in this document is current as of the date on the title page.
ii
YEAR 2000 NOTICE
Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related
limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.
END USER LICENSE AGREEMENT
The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with)
Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement
(“EULA”) posted at https://support.juniper.net/support/eula/. By downloading, installing or using such software, you
agree to the terms and conditions of that EULA.
Table of Contents
1
About the Documentation | x
Documentation and Release Notes | x
Using the Examples in This Manual | x
Merging a Full Example | xi
Merging a Snippet | xii
Documentation Conventions | xii
Documentation Feedback | xv
Requesting Technical Support | xv
Self-Help Online Tools and Resources | xvi
Creating a Service Request with JTAC | xvi
iii
Overview
EX4600 System Overview | 18
EX4600 Switch Hardware Overview | 18
Benefits of the EX4600 Switch | 19
EX4600 Hardware | 19
System Software | 20
EX4600 Switch Models | 21
Understanding Redundancy of EX4600 Switch Components and Functionality | 22
EX4600 Chassis | 22
Chassis Physical Specifications for an EX4600 Switch | 23
Field-Replaceable Units in an EX4600 Switch | 23
Port Panel of an EX4600 Switch | 24
Access Port and Uplink Port LEDs on an EX4600 Switch | 25
Management Panel of an EX4600 Switch | 28
Chassis Status LEDs on an EX4600 Switch | 30
Expansion Modules for the EX4600 | 32
EX4600-EM-8F | 33
QFX-EM-4Q | 34
EX4600 Cooling System | 35
2
Cooling System and Airflow in an EX4600 Switch | 35
Fan Modules | 36
Do Not Install Components with Different Airflow or Wattage in the Switch | 38
Fan Module Status | 39
Fan Module LED on an EX4600 Switch | 40
EX4600 Power System | 41
AC Power Supply in an EX4600 Switch | 41
AC Power Supply LEDs on an EX4600 Switch | 43
AC Power Specifications for an EX4600 Switch | 44
AC Power Cord Specifications for an EX4600 Switch | 45
DC Power Supply in an EX4600 Switch | 46
DC Power Supply LEDs in EX4600 Switches | 48
iv
DC Power Specifications for an EX4600 Switch | 50
Grounding Cable and Lug Specifications for an EX4600 Switch | 50
Site Planning, Preparation, and Specifications
Site Preparation Checklist for an EX4600 Switch | 53
EX4600 Site Guidelines and Requirements | 54
Environmental Requirements and Specifications for EX Series Switches | 55
General Site Guidelines | 60
Site Electrical Wiring Guidelines | 60
Rack Requirements for an EX4600 Switch | 61
Cabinet Requirements for an EX4600 Switch | 63
Clearance Requirements for Airflow and Hardware Maintenance for an EX4600 Switch | 64
3
EX4600 Network Cable and Transceiver Planning | 64
Determining Interface Support for an EX4600 Switch | 65
Cable Specifications for QSFP+ Transceivers on EX4600 Series Switches | 66
Network Cable Specifications for EX4600 Switches | 68
Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and
Dispersion | 68
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable | 69
Attenuation and Dispersion in Fiber-Optic Cable | 69
Calculating the Fiber-Optic Cable Power Budget for EX Series Devices | 70
Calculating the Fiber-Optic Cable Power Margin for EX Series Devices | 70
EX4600 Management Cable Specifications and Pinouts | 72
Cable Specifications for Console and Management Connections for the EX4600 | 73
v
USB Port Specifications for an EX Series Switch | 73
Console Port Connector Pinout Information | 74
RJ-45 Management Port Connector Pinout Information | 75
Initial Installation and Configuration
Unpacking and Mounting an EX4600 Switch | 77
Installing and Connecting an EX4600 Switch | 77
Unpacking an EX4600 Switch | 78
Mounting an EX4600 Switch in a Rack or Cabinet | 79
Before You Begin Rack Installation | 80
Four Post Procedure | 81
Connecting the EX4600 to Power | 83
Connecting Earth Ground to an EX4600 Switch | 84
Connecting AC Power to an EX4600 Switch | 85
Connecting DC Power to an EX4600 Switch | 88
Connecting the EX4600 to Management Devices | 92
Connect a Device to a Network for Out-of-Band Management | 93
Connect a Device to a Management Console Using an RJ-45 Connector | 93
Connecting EX4600 Switches in a Virtual Chassis | 95
Configuring Junos OS on the EX4600 | 96
Maintaining Components
4
5
Maintaining the EX4600 Switch Cooling System | 100
Removing a Fan Module from an EX4600 Switch | 100
Installing a Fan Module in an EX4600 Switch | 101
Maintaining the EX4600 Switch Power System | 103
Removing a Power Supply from an EX4600 Switch | 103
Installing a Power Supply in an EX4600 Switch | 105
Maintaining the Expansion Module in an EX4600 Switch | 106
Removing an Expansion Module from an EX4600 Switch | 107
Installing an Expansion Module in an EX4600 Switch | 108
Maintain Transceivers | 110
Remove a Transceiver | 110
vi
Remove a QSFP28 Transceiver | 114
Install a Transceiver | 116
Install a QSFP28 Transceiver | 118
Maintain Fiber-Optic Cables | 120
Connect a Fiber-Optic Cable | 120
Disconnect a Fiber-Optic Cable | 121
How to Handle Fiber-Optic Cables | 122
Removing the EX4600 Switch | 123
Installing and Removing EX4600 Switch Hardware Components | 124
Powering Off an EX4600 Switch | 125
Removing an EX4600 Switch from a Rack or Cabinet | 127
Troubleshooting Hardware
Troubleshooting the EX4600 Components | 130
Understand Alarm Types and Severity Levels on EX Series Switches | 130
Interface Alarm Messages | 132
Creating an Emergency Boot Device | 132
Performing a Recovery Installation | 134
Contacting Customer Support and Returning the Chassis or Components
6
7
Returning an EX4600 Chassis or Components | 137
Returning an EX4600 Switch or Component for Repair or Replacement | 137
Locating the Serial Number on an EX4600 Switch or Component | 138
Listing the Chassis and Component Details Using the CLI | 138
Locating the Chassis Serial Number ID Label on an EX4600 Switch | 140
Locating the Serial Number ID Labels on FRU Components | 140
Contact Customer Support to Obtain Return Material Authorization | 140
Packing an EX4600 Switch or Component for Shipping | 141
Packing an EX4600 Switch for Shipping | 142
Packing EX4600 Switch Components for Shipping | 143
Safety and Compliance Information
vii
General Safety Guidelines and Warnings | 146
Definitions of Safety Warning Levels | 147
Qualified Personnel Warning | 150
Warning Statement for Norway and Sweden | 151
Fire Safety Requirements | 151
Fire Suppression | 151
Fire Suppression Equipment | 151
Installation Instructions Warning | 153
Chassis and Component Lifting Guidelines | 153
Restricted Access Warning | 155
Ramp Warning | 157
Rack-Mounting and Cabinet-Mounting Warnings | 158
Grounded Equipment Warning | 164
Laser and LED Safety Guidelines and Warnings | 165
General Laser Safety Guidelines | 165
Class 1 Laser Product Warning | 166
Class 1 LED Product Warning | 167
Laser Beam Warning | 168
Radiation from Open Port Apertures Warning | 169
Maintenance and Operational Safety Guidelines and Warnings | 170
Battery Handling Warning | 171
Jewelry Removal Warning | 172
Lightning Activity Warning | 174
Operating Temperature Warning | 175
Product Disposal Warning | 177
General Electrical Safety Guidelines and Warnings | 178
Action to Take After an Electrical Accident | 179
Prevention of Electrostatic Discharge Damage | 180
viii
AC Power Electrical Safety Guidelines | 181
AC Power Disconnection Warning | 183
DC Power Electrical Safety Guidelines | 184
DC Power Disconnection Warning | 185
DC Power Grounding Requirements and Warning | 187
DC Power Wiring Sequence Warning | 189
DC Power Wiring Terminations Warning | 192
Multiple Power Supplies Disconnection Warning | 195
TN Power Warning | 196
Agency Approvals for EX Series Switches | 196
Compliance Statements for EMC Requirements for EX Series Switches | 197
Canada | 198
Taiwan | 199
European Community | 199
Israel | 199
Japan | 199
Korea | 200
United States | 200
FCC Part 15 Statement | 200
Nonregulatory Environmental Standards | 201
Compliance Statements for Acoustic Noise for EX Series Switches | 202
Statements of Volatility for Juniper Network Devices | 202
ix
About the Documentation
IN THIS SECTION
Documentation and Release Notes | x
Using the Examples in This Manual | x
Documentation Conventions | xii
Documentation Feedback | xv
Requesting Technical Support | xv
Use this guide to install hardware and perform initial software configuration, routine maintenance, and
troubleshooting for the EX4600 switch. After completing the installation and basic configuration procedures
covered in this guide, refer to the Junos OS documentation for information about further software
configuration.
x
Documentation and Release Notes
To obtain the most current version of all Juniper Networks®technical documentation, see the product
documentation page on the Juniper Networks website at https://www.juniper.net/documentation/.
If the information in the latest release notes differs from the information in the documentation, follow the
product Release Notes.
Juniper Networks Books publishes books by Juniper Networks engineers and subject matter experts.
These books go beyond the technical documentation to explore the nuances of network architecture,
deployment, and administration. The current list can be viewed at https://www.juniper.net/books.
Using the Examples in This Manual
If you want to use the examples in this manual, you can use the load merge or the load merge relative
command. These commands cause the software to merge the incoming configuration into the current
candidate configuration. The example does not become active until you commit the candidate configuration.
If the example configuration contains the top level of the hierarchy (or multiple hierarchies), the example
is a full example. In this case, use the load merge command.
If the example configuration does not start at the top level of the hierarchy, the example is a snippet. In
this case, use the load merge relative command. These procedures are described in the following sections.
Merging a Full Example
To merge a full example, follow these steps:
1. From the HTML or PDF version of the manual, copy a configuration example into a text file, save the
file with a name, and copy the file to a directory on your routing platform.
For example, copy the following configuration to a file and name the file ex-script.conf. Copy the
ex-script.conf file to the /var/tmp directory on your routing platform.
system {
scripts {
commit {
file ex-script.xsl;
}
}
}
interfaces {
fxp0 {
disable;
unit 0 {
family inet {
address 10.0.0.1/24;
}
}
}
}
xi
2. Merge the contents of the file into your routing platform configuration by issuing the load merge
configuration mode command:
[edit]
user@host# load merge /var/tmp/ex-script.conf
load complete
Merging a Snippet
To merge a snippet, follow these steps:
1. From the HTML or PDF version of the manual, copy a configuration snippet into a text file, save the
file with a name, and copy the file to a directory on your routing platform.
For example, copy the following snippet to a file and name the file ex-script-snippet.conf. Copy the
ex-script-snippet.conf file to the /var/tmp directory on your routing platform.
commit {
file ex-script-snippet.xsl; }
2. Move to the hierarchy level that is relevant for this snippet by issuing the following configuration mode
command:
[edit]
user@host# edit system scripts
[edit system scripts]
xii
3. Merge the contents of the file into your routing platform configuration by issuing the load merge
relative configuration mode command:
[edit system scripts]
user@host# load merge relative /var/tmp/ex-script-snippet.conf
load complete
For more information about the load command, see CLI Explorer.
Documentation Conventions
Table 1 on page xiii defines notice icons used in this guide.
Table 1: Notice Icons
xiii
DescriptionMeaningIcon
Indicates important features or instructions.Informational note
Caution
Indicates a situation that might result in loss of data or hardware
damage.
Alerts you to the risk of personal injury or death.Warning
Alerts you to the risk of personal injury from a laser.Laser warning
Indicates helpful information.Tip
Alerts you to a recommended use or implementation.Best practice
Table 2 on page xiii defines the text and syntax conventions used in this guide.
Table 2: Text and Syntax Conventions
ExamplesDescriptionConvention
Fixed-width text like this
Italic text like this
Represents text that you type.Bold text like this
Represents output that appears on
the terminal screen.
Introduces or emphasizes important
•
new terms.
Identifies guide names.
•
Identifies RFC and Internet draft
•
titles.
To enter configuration mode, type
the configure command:
user@host> configure
user@host> show chassis alarms
No alarms currently active
A policy term is a named structure
•
that defines match conditions and
actions.
Junos OS CLI User Guide
•
RFC 1997, BGP Communities
•
Attribute
Table 2: Text and Syntax Conventions (continued)
xiv
ExamplesDescriptionConvention
Italic text like this
Text like this
< > (angle brackets)
| (pipe symbol)
Represents variables (options for
which you substitute a value) in
commands or configuration
statements.
Represents names of configuration
statements, commands, files, and
directories; configuration hierarchy
levels; or labels on routing platform
components.
variables.
Indicates a choice between the
mutually exclusive keywords or
variables on either side of the symbol.
The set of choices is often enclosed
in parentheses for clarity.
Configure the machine’s domain
name:
[edit]
root@# set system domain-name
domain-name
To configure a stub area, include
•
the stub statement at the [edit
protocols ospf area area-id]
hierarchy level.
The console port is labeled
•
CONSOLE.
stub <default-metric metric>;Encloses optional keywords or
broadcast | multicast
(string1 | string2 | string3)
# (pound sign)
[ ] (square brackets)
Indention and braces ( { } )
; (semicolon)
GUI Conventions
Indicates a comment specified on the
same line as the configuration
statement to which it applies.
Encloses a variable for which you can
substitute one or more values.
Identifies a level in the configuration
hierarchy.
Identifies a leaf statement at a
configuration hierarchy level.
rsvp { # Required for dynamic MPLS
only
community name members [
community-ids ]
[edit]
routing-options {
static {
route default {
nexthop address;
retain;
}
}
}
Table 2: Text and Syntax Conventions (continued)
xv
ExamplesDescriptionConvention
Bold text like this
> (bold right angle bracket)
Represents graphical user interface
(GUI) items you click or select.
Separates levels in a hierarchy of
menu selections.
In the Logical Interfaces box, select
•
All Interfaces.
To cancel the configuration, click
•
Cancel.
In the configuration editor hierarchy,
select Protocols>Ospf.
Documentation Feedback
We encourage you to provide feedback so that we can improve our documentation. You can use either
of the following methods:
Online feedback system—Click TechLibrary Feedback, on the lower right of any page on the Juniper
•
Networks TechLibrary site, and do one of the following:
Click the thumbs-up icon if the information on the page was helpful to you.
•
Click the thumbs-down icon if the information on the page was not helpful to you or if you have
•
suggestions for improvement, and use the pop-up form to provide feedback.
E-mail—Send your comments to techpubs-comments@juniper.net. Include the document or topic name,
•
URL or page number, and software version (if applicable).
Requesting Technical Support
Technical product support is available through the Juniper Networks Technical Assistance Center (JTAC).
If you are a customer with an active Juniper Care or Partner Support Services support contract, or are
covered under warranty, and need post-sales technical support, you can access our tools and resources
online or open a case with JTAC.
JTAC policies—For a complete understanding of our JTAC procedures and policies, review the JTAC User
•
Guide located at https://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf.
Product warranties—For product warranty information, visit https://www.juniper.net/support/warranty/.
•
JTAC hours of operation—The JTAC centers have resources available 24 hours a day, 7 days a week,
•
365 days a year.
Self-Help Online Tools and Resources
For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called
the Customer Support Center (CSC) that provides you with the following features:
Find CSC offerings: https://www.juniper.net/customers/support/
•
Search for known bugs: https://prsearch.juniper.net/
•
xvi
Find product documentation: https://www.juniper.net/documentation/
•
Find solutions and answer questions using our Knowledge Base: https://kb.juniper.net/
•
Download the latest versions of software and review release notes:
•
https://www.juniper.net/customers/csc/software/
Search technical bulletins for relevant hardware and software notifications:
•
https://kb.juniper.net/InfoCenter/
Join and participate in the Juniper Networks Community Forum:
•
https://www.juniper.net/company/communities/
Create a service request online: https://myjuniper.juniper.net
•
To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool:
https://entitlementsearch.juniper.net/entitlementsearch/
Creating a Service Request with JTAC
You can create a service request with JTAC on the Web or by telephone.
Visit https://myjuniper.juniper.net.
•
Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).
•
For international or direct-dial options in countries without toll-free numbers, see
https://support.juniper.net/support/requesting-support/.
1
CHAPTER
Overview
EX4600 System Overview | 18
EX4600 Chassis | 22
EX4600 Cooling System | 35
EX4600 Power System | 41
EX4600 System Overview
IN THIS SECTION
EX4600 Switch Hardware Overview | 18
EX4600 Switch Models | 21
Understanding Redundancy of EX4600 Switch Components and Functionality | 22
EX4600 Switch Hardware Overview
18
IN THIS SECTION
Benefits of the EX4600 Switch | 19
EX4600 Hardware | 19
System Software | 20
The Juniper Networks EX4600 Ethernet switch is a highly versatile, second generation solution for campus
environments. The EX4600 can be deployed in these environments:
Campus distribution
•
Small campus core
•
Top-of-rack in small, low -density data centers
•
Data center distribution in small, low -density data centers
•
In addition to operating as a standalone switch, the EX4600 switch can act as a member switch in a
non-mixed Virtual Chassis, a Virtual Chassis composed entirely of EX4600 switches, as well as participate
as member switches in a mixed Virtual Chassis with EX4300 switches. The switch offers a flexible
configuration of high-performance 10-gigabit and 40-gigabit ports to add higher port densities, additional
scalability, and improved latency to the EX Series of switches.
Benefits of the EX4600 Switch
1
Compact solution—The EX4600 switch supports up to 72 10-Gigabit Ethernet ports in a 1 rack unit (1 U)
chassis.
Intelligent buffer management—EX4600 switches have a total of 12 MB shared buffers. While 25 percent
of the total buffer space is dedicated, the rest is shared among all ports and is user configurable. The
intelligent buffer mechanism in the EX4600 effectively absorbs traffic bursts while providing deterministic
performance, significantly increasing performance over static allocation.
Energy efficiency—The 10-Gigabit Ethernet ports consume less than five watts, thereby offering a low
power solution for top-of-rack, end-of-row, and distribution deployments.
EX4600 Hardware
The EX4600 switch is a compact 1 U model that provides wire-speed packet performance, very low latency,
and a rich set of Layer 2 and Layer 3 features. In addition to a high-throughput Packet Forwarding Engine,
the performance of the control plane running on the EX4600 model is enhanced by the 1.5 -GHz dual-core
Intel CPU with 8 GB of memory and 32 GB of solid-state drive (SSD) storage.
19
The port panel of the EX4600 features 24 fixed small form-factor pluggable (SFP) or SFP+ access ports
and 4 fixed quad SFP+ (QSFP+) high-speed uplinks.
Figure 1: EX4600 Port Panel with Expansion Bays
In addition, the switch has two module bays where you can install optional expansion modules. The EX4600
switch supports two expansion modules to increase port density:
QFX-EM-4Q–Adds four additional QSFP+ ports to the chassis. When fully populated with QFX-EM-4Q
•
expansion modules, the EX4600 is equivalent to one with 72 interfaces (24 + 16 + 16 + 16). See
Figure 2 on page 20.
Figure 2: QFX-EM-4Q Expansion Module
EX4600-EM-8F–Adds a total of eight additional SFP+ ports to the chassis. When fully populated with
•
EX4600-EM-8F expansion modules, the EX4600 is equivalent to one with 56 interfaces (24 + 16 + 8 +
8). See Figure 3 on page 20.
Figure 3: EX4600-EM-8F Expansion Module
20
The EX4600 switch can be used as:
A standalone switch.
•
A primary, backup, or linecard member in a Virtual Chassis with EX4600 switches or EX4300 switches.
•
When in a mixed Virtual Chassis consisting of EX4600 switches and EX4300 switches, the EX4600
switches can be the primary, backup, or in the linecard role, while the EX4300 switches must be in the
linecard role. An EX4600 Virtual Chassis enables you to interconnect up to 10 switches into one logical
device and manage the device as a single chassis. An EX4600 Virtual Chassis is cabled in a ring topology.
In a mixed Virtual Chassis of EX4600 and EX4300 switches, the Junos OS release dictates whether the
EX4600 is best used in the primary role. For Junos OS releases between 13.2X50-D10 and 14.1X53-D25,
use the use the EX4300 as a primary and backup RE in the Virtual Chassis. For Junos OS Release
14.1X53-D25 and later, the EX4600 is fully supported as the primary in a mixed Virtual Chassis of
EX4600 and EX4300.
System Software
EX Series switches run the Junos operating system (OS), which provides Layer 2 and Layer 3 switching,
routing, and security services. An EX4600 switch ships with Junos OS installed on it. The same Junos OS
code base that runs on EX4600 switches also runs on all Juniper Networks QFX Series devices, M Series,
MX Series, and T Series routers.
You manage the switch by using the Junos OS CL), which is accessible through the console and out-of-band
management ports on the switch.
All models of the EX4600 run on Junos OS Release 13.2X51-D25 or later.
EX4600 Switch Models
The EX4600 switches have a base configuration of 24 small form-factor pluggable plus (SFP+) ports and
4 quad small-form-factor pluggable (QSFP+) ports. You can increase the number of ports by using expansion
modules. All EX4600 switches, except the EX4600-40F-S switch, ship with two power supplies and five
fans installed by default. Expansion modules are optional components that must be separately ordered.
Table 3 on page 21 lists the EX4600 switch configurations.
Table 3: EX4600 Switches
Number of
Expansion
Modules
SupportedPortsProduct Number
Power
Supply
Airflow
21
Air In (FRU-to-port)AC224 SFP+ and 4 QSFP+EX4600-40F-AFI
AC224 SFP+ and 4 QSFP+EX4600-40F-AFO
DC224 SFP+ and 4 QSFP+EX4600-40F-DC-AFO
224 SFP+ and 4 QSFP+EX4600-40F-S
Order PSUs
separately
Air Out
(port-to-FRU)
Air In (FRU-to-port)DC224 SFP+ and 4 QSFP+EX4600-40F-DC-AFI
Air Out
(port-to-FRU)
Fan modules are
not shipped by
default.
Order fan modules
separately
CAUTION: Do not mix:
AC and DC power supplies in the same chassis.
•
Power supplies with different airflow labels (AFI) and (AFO) in the same chassis.
•
Fan modules with different airflow labels (AIR INI) and (AIR OUT) in the same chassis.
•
Power supplies and fan modules with different airflow labels (AIR INI) and AIR OUT)
•
or AFI and AFO in the same chassis.
Understanding Redundancy of EX4600 Switch Components and Functionality
22
The following hardware components provide redundancy on an EX4600 switch:
Power supplies—The EX4600 switch can operate with one power supply. However, all EX4600 switches,
•
except the EX4600-40F-S switch, ship with two power supplies preinstalled for redundancy. Each power
supply provides power to all components in the switch. Installing two power provides full power
redundancy to the switch. If one power supply fails or is removed, the second power supply balances
the electrical load without interruption.
Cooling system—All EX4600 switches, except the EX4600-40F-S ship with five fan modules installed.
•
If a fan module fails and leads to the overheating of the chassis, alarms occur and the switch might shut
down.
EX4600 Chassis
IN THIS SECTION
Chassis Physical Specifications for an EX4600 Switch | 23
Field-Replaceable Units in an EX4600 Switch | 23
Port Panel of an EX4600 Switch | 24
Access Port and Uplink Port LEDs on an EX4600 Switch | 25
Management Panel of an EX4600 Switch | 28
Chassis Status LEDs on an EX4600 Switch | 30
Expansion Modules for the EX4600 | 32
Chassis Physical Specifications for an EX4600 Switch
The EX4600 switch chassis is a rigid sheet-metal structure that houses the hardware components.
Table 4 on page 23 summarizes the physical specifications of the EX4600 chassis.
Table 4: Physical Specifications for the EX4600 Switch Chassis
WeightDepthWidthHeightProduct Number
23
20.48 in. (4.37 cm)17.36 in. (44.1 cm)1.72 in. (4.3 cm)EX4600
With power supplies and fan
modules installed: 21.7lbs ( 9.84
kg)
Field-Replaceable Units in an EX4600 Switch
Field-replaceable units (FRUs) are components that you can replace at your site. The EX4600 switch FRUs
are hot-insertable and hot-removable: you can remove and replace one of them without powering off the
switch or disrupting the switching function. FRU types are:
Power supplies
•
Fan modules
•
Optical transceivers
•
Expansion modules
•
CAUTION: Replace a failed power supply with a blank panel or a new power supply
within one minute of removal to prevent chassis overheating. The switch continues
to operate with only one power supply running. Replace a failed fan module with a
new fan module within one minute of removal to prevent chassis overheating. Do not
operate the switch for more than one minute after a fan module or power supply fails.
Table 5 on page 24 lists the FRUs for the EX4600 switch and actions to take before removing them.
Table 5: FRUs in a EX4600 Switch
24
Required ActionFRU
Power supplies
Fan modules
Optical transceivers
Expansion modules
None, if two power supplies are installed as recommended. If only one
power is installed, you must power down the switch. See “Removing a
Power Supply from an EX4600 Switch” on page 103.
None. See “Removing a Fan Module from an EX4600 Switch” on page 100
for details.
None. We recommend that you disable the interface using the set interfaces
interface-name disable command before you remove the transceiver. See
“Disconnect a Fiber-Optic Cable” on page 121.
None. See “Removing an Expansion Module from an EX4600 Switch” on
page 107.
NOTE: If you have a Juniper Care service contract, register any addition, change, or upgrade of
hardware components at https://www.juniper.net/customers/support/tools/updateinstallbase/
. Failure to do so can result in significant delays if you need replacement parts. This note does
not apply if you replace existing components with the same type of component.
SEE ALSO
Installing and Removing EX4600 Switch Hardware Components | 124
Port Panel of an EX4600 Switch
The fixed portion of the port panel of the EX4600-40F switch supports up to a maximum of 40 logical 10
GbE ports. Twenty-four physical ports (0 through 23) support 10 Gbps small form-factor pluggable plus
(SFP+) transceivers. These ports can be configured as access ports. See The Hardware Compatibility Tool
for a list of supported transceivers. All 24 of these ports can be used for SFP+ transceivers or SFP+ direct
attach copper (DAC) cables. You can use 1-Gigabit Ethernet SFP+ transceivers, 10-Gigabit Ethernet SFP+
transceivers, and SFP+ direct attach copper cables in any access port.
The remaining 16 logical ports are available for four 40 GbE ports (24 through 27) that support up to four
quad small-form factor pluggable plus (QSFP+) transceivers. Each QSFP+ port can operate either as a
single 40 Gbps port or as a set of 4 independent 10 Gbps ports using QSFP+ breakout cables. The 40 GbE
ports can be configured as either access ports or as uplinks. .
CAUTION: Do not install 1GbE copper transceivers (such as QFX-SFP-1GE-T) directly
above or below another 1GbE copper transceiver. Use only the top row or bottom
row to avoid damage to the device caused by some types of copper transceivers when
the transceivers are installed above or below each other. However, if you are using
copper transceivers with the OEM part number FCLF8521P2BTL-J1 printed on the
transceiver label, you can install the transceivers in any port with no restrictions. For
devices that support 10GbE copper transceivers, there is no similar restriction.
Figure 4 on page 25 shows the port panel of an EX4600 switch.
Figure 4: EX4600 Switch Port Panel
25
3—1— 40 GbE ports (4)Electrostatic Discharge (ESD) terminal
4—2— Expansion module bays with cover panels (2)10 G ports (24)
Access Port and Uplink Port LEDs on an EX4600 Switch
The Link/Activity and Status LED configuration for an EX4600 switch uses bi-colored LEDs. The two
figures in this topic show the location of those LEDs:
Figure 5 on page 26 shows the location of the LEDs on the SFP+ access ports on the EX4600 and
g050236
Bi-colored LEDs
•
Figure 6 on page 26 shows the location of the LEDs on the QSFP+ uplink ports on the EX4600.
Figure 5: LEDs on the SFP+ Ports
Figure 6: LEDs on the QSFP+ Ports
26
The LED in Figure 5 on page 26 labeled Link/Activity indicate link activity or a fault. The LED labeled Status
in indicates transceiver presence.
Table 6 on page 27 describes how to interpret the SFP+ port LEDs.
Table 6: Network Port LEDs on SFP+ Ports on an EX4600 Switch
DescriptionStateColorLED
27
OffUnlitLink/Activity
BlinkingGreen
On steadilyGreen
The port is administratively disabled, there is no power, the
link is down, or there is a fault.
A link is established, but there is no link activity.On steadilyGreen
A link is established, and there is link activity.Blinking
The beacon is enabled on the port.BlinkingAmber
The link is down.OffUnlitStatus
The beacon function is enabled on the port.BlinkingAmber
A 1-Gigabit Ethernet transceiver is installed in the port and
the link is established.
A 10-Gigabit Ethernet transceiver is installed in the port
and link is established.
As shown in Figure 6 on page 26, there are four bi-color LEDs for each QSFP+ port. The first LED is used
and the remaining LEDs are not used when the interface is configured for 40-Gigabit Ethernet and connected
to a QSFP+ transceiver. All four LEDs are used when the interface is configured for 10-Gigabit Ethernet
and the port is connected using an optical split cable or a copper DACBO cable. Table 7 on page 27
describes how to interpret the QSFP+ LEDs.
Table 7: Network Port LEDs on QSFP+ Ports on an EX4600 Switch
DescriptionStateColor
OffUnlit
The port is administratively disabled, there is no power, the
link is down, or there is a fault.
NOTE: When configured for 10-Gigabit Ethernet, the LED
remains unlit only if all four of the 10-Gigabit Ethernet SFP+
breakout links are down.
Table 7: Network Port LEDs on QSFP+ Ports on an EX4600 Switch (continued)
DescriptionStateColor
28
On steadilyGreen
Blinking
BlinkingAmber
A link is established, but there is no link activity.
NOTE: When configured for 10-Gigabit Ethernet, the LED is
lit green when at least one of the four 10-Gigabit Ethernet
SFP+ breakout links is established.
A link is established, and there is link activity.
NOTE: When configured for 10-Gigabit Ethernet, the LED is
lit green when at least one of the four 10-Gigabit Ethernet
SFP+ breakout links is established.
All four LEDs blink to indicate the beacon function was enabled
on the port.
Management Panel of an EX4600 Switch
The management panel of the EX4600 switch is located on the Field Replaceable Unit (FRU) side of the
switch, as shown in Figure 7 on page 28. See Figure 8 on page 29 for management panel details.
Figure 7: EX4600 Switch, FRU Side with Fans Modules and Power Supplies Installed
3—1— Power supply unitsManagement panel
2—Fan modules
Figure 8: Management Panel Components
29
Status LEDs
Cage (socket for either 1 GbE copper SFP or fiber
SFP)
3—Reset button, see caution statement below
4—1— RJ-45 console port (CON) and em0–RJ-45 (1000
Base-T) management Ethernet port (C0)
5—2— USB portem1–SFP management Ethernet port (C1)
CAUTION: Do not use the Reset button to restart the power sequence unless under
the direction of Juniper Networks Technical Assistance Center (JTAC).
The management panel consists of the following components:
Status LEDs
•
ALM (Alarm or beacon)
•
Unlit indicates the switch is halted or that there is no alarm.
•
Red indicates a major alarm.
•
Amber indicates a minor alarm.
•
SYS (System)
•
Unlit indicates the switch is powered off or halted.
•
Solid green indicates that Junos OS for EX Series is loaded on the switch.
•
Blinking green indicates that the switch is a participating member in a Virtual Chassis.
•
MST (Primary) in a Virtual Chassis
•
Unlit indicates the switch is standalone or is a line card member in a Virtual Chassis.
•
Solid green indicates the switch is the primary in a Virtual Chassis.
•
Blinking green indicates the switch is the backup primary in a Virtual Chassis.
•
ID (Identification)
•
Unlit indicates the beacon feature is not enabled.
•
Blinking blue indicates the beacon feature is enabled. This feature is enabled using the request
•
chassis beacon command.
Switch model number
•
Management Ports C0 and C1
•
C0–Use the RJ-45 connectors for 10/100/1000 BaseT.
•
C1–Use the SFP connector for 1000 BaseX.
•
USB port for image updates.
•
Console port (RJ-45) to support RS-232 serial ports. The LEDs above the port indicate status and link.
•
30
Chassis Status LEDs on an EX4600 Switch
The EX4600 switch has four status LEDs on the field-replaceable unit (FRU) end of the chassis, next to
the management ports (see Figure 9 on page 30).
Figure 9: Chassis Status LEDs on an EX4600 Switch
Status LEDs
3—1— RJ-45 console port (CON) and em0–RJ-45 (1000
Base-T) management Ethernet port (C0)
Cage (socket for either 1 GbE copper SFP or fiber
SFP)
4—2— USB portem1–SFP management Ethernet port (C1)
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