Juniper EX4650 Series Installation instructions

EX4650 Switch Hardware Guide
Published
2019-10-10

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.
EX4650 Switch Hardware Guide
Copyright © 2019 Juniper Networks, Inc. All rights reserved.
The information in this document is current as of the date on the title page.
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.
ii

Table of Contents
About the Documentation | ix
Documentation and Release Notes | ix
Using the Examples in This Manual | ix
Merging a Full Example | x
Merging a Snippet | xi
Documentation Conventions | xi
Documentation Feedback | xiv
Requesting Technical Support | xiv
Self-Help Online Tools and Resources | xv
Creating a Service Request with JTAC | xv
Overview
1
EX4650 Switches System Overview | 19
EX4650 Switches Hardware Overview | 19
Benefits of the EX4650 Switch | 20
Software | 20
EX4650 Switch First View | 20
Power Supplies | 23
Cooling System | 24
EX4650 Switch Models | 25
Identifying EX4650 Switch Models | 26
Chassis Physical Specifications for EX4650 Switches | 28
Field-Replaceable Units in EX4650 Switches | 28
EX4650 Chassis | 29
Chassis Status LEDs on EX4650 Switches | 29
Management Port LEDs on EX4650 Switches | 31
Access Port and Uplink Port LEDs on EX4650 Switches | 31
EX4650 Cooling System | 33
Fan Modules | 34
Airflow Direction in EX4650 Switch Models | 35
iii

Front-to-Back Airflow | 36
Back-to-Front Airflow | 37
Do Not Mix AIR IN (AFI) and AIR OUT (AFO) Components in the Switch | 38
Positioning the Switch | 39
Fan Module Status | 39
EX4650 Power System | 40
AC Power Supply in EX4650 Switches | 40
AC Power Supply in EX4650 Switches | 40
DC Power Supply in EX4650 Switches | 41
Airflow Direction in Power Supplies | 42
AC Power Supply Specifications for EX4650 Switches | 43
AC Power Cord Specifications for EX4650 Switches | 44
AC Power Supply LEDs in EX4650 Switches | 46
DC Power Supply in EX4650 Switches | 47
Characteristics of a DC Power Supply | 48
DC Power Supply Airflow | 49
DC Power Supply in EX4650 Switches | 50
DC Power Supply in EX4650 Switches | 50
Airflow Direction in Power Supplies | 51
EX4650 DC Power Specifications | 53
DC Power Supply LEDs in EX4650 Switches | 53
Site Planning, Preparation, and Specifications
2
Site Preparation Checklist for EX4650 Switches | 57
EX4650 Site Guidelines and Requirements | 58
Environmental Requirements and Specifications for EX4650 Switches | 58
General Site Guidelines | 60
Site Electrical Wiring Guidelines | 60
Rack Requirements for EX4650 Switches | 61
Cabinet Requirements for EX4650 Switches | 62
iv

Clearance Requirements for Airflow and Hardware Maintenance for EX4650 Switches | 63
EX4650 Network Cable and Transceiver Planning | 65
Pluggable Transceivers Supported on EX4650 Switches | 65
SFP28 Direct Attach Copper Cables for EX4650 Switches | 66
Cable Specifications | 67
Standards Supported by These Cables | 67
QSFP28 Direct Attach Copper Cables for EX4650 Switches | 68
Cable Specifications | 68
Calculating the Fiber-Optic Cable Power Budget for EX Series Devices | 69
Calculating the Fiber-Optic Cable Power Margin for EX Series Devices | 69
EX4650 Management Cable Specifications and Pinouts | 71
Console Port Connector Pinout Information | 71
RJ-45 Management Port Connector Pinout Information | 72
RJ-45 to DB-9 Serial Port Adapter Pinout Information | 73
QSFP+, QSFP28, SFP, SFP+, and SFP28 Port Connector Pinout Information | 73
Initial Installation and Configuration
3
Unpacking and Mounting the EX4650 Switch | 81
Unpacking the Switch | 81
Parts Inventory (Packing List) for an EX4650 Switch | 82
Registering Products—Mandatory for Validating SLAs | 83
Mounting an EX4650 Switch on Four Posts of a Rack or Cabinet | 83
Connecting the EX4650 to Power | 87
Connecting Earth Ground to an EX4650 Switch | 87
Connecting AC Power to an EX4650 Switch | 88
Connecting DC Power to an EX4650 Switch | 90
Connecting the EX4650 to the Network | 94
Installing a Transceiver | 94
Connecting a Fiber-Optic Cable | 97
Connecting the EX4650 to External Devices | 98
Connecting a Device to a Network for Out-of-Band Management | 98
Connecting a Device to a Management Console by Using an RJ-45 Connector | 99
v

Configuring Junos OS on the EX4650 | 100
EX4650 Switch Default Configuration | 101
Connecting and Configuring an EX4650 Switch | 101
Maintaining Components
4
Maintaining the EX4650 Cooling System | 109
Removing a Fan Module from an EX4650 Switch | 109
Installing a Fan Module in an EX4650 Switch | 110
Maintaining the EX4650 Power System | 112
Removing a Power Supply from an EX4650 Switch | 112
Installing an AC Power Supply in an EX4650 Switch | 114
Maintaining Transceivers | 115
Removing a Transceiver | 116
Removing a QSFP28 Transceiver | 119
Installing a Transceiver | 121
Installing a QSFP28 Transceiver | 123
Maintaining Fiber-Optic Cables | 125
Connecting a Fiber-Optic Cable | 125
Disconnecting a Fiber-Optic Cable | 126
Maintaining Fiber-Optic Cables | 127
Troubleshooting Hardware
5
Troubleshooting the EX4650 Components | 131
Understanding Alarms | 131
Interface Alarm Messages | 132
Creating an Emergency Boot Device | 133
Contacting Customer Support and Returning the Chassis or Components
6
Returning an EX4650 Chassis or Components | 137
Returning an EX4650 Switch or Component for Repair or Replacement | 137
Locating the Serial Number on an EX4650 Switch or Component | 138
Listing the Switch and Components Details using the CLI | 138
Locating the Chassis Serial Number ID Label on an EX4650 Switch | 139
vi

Locating the Serial Number ID Labels on FRUs in an EX4650 Switch | 139
Contacting Customer Support to Obtain Return Material Authorization | 140
Packing an EX4650 Switch or Component for Shipping | 141
Packing an EX4650 Switch for Shipping | 141
Packing EX4650 Switch Components for Shipping | 143
Safety and Compliance Information
7
General Safety Guidelines and Warnings | 147
Definitions of Safety Warning Levels | 148
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 | 157
Grounded Equipment Warning | 162
Radiation from Open Port Apertures Warning | 163
Laser and LED Safety Guidelines and Warnings | 164
General Laser Safety Guidelines | 164
Class 1 Laser Product Warning | 165
Class 1 LED Product Warning | 166
Laser Beam Warning | 167
Maintenance and Operational Safety Guidelines and Warnings | 167
Battery Handling Warning | 169
Jewelry Removal Warning | 170
vii

Lightning Activity Warning | 172
Operating Temperature Warning | 173
Product Disposal Warning | 175
General Electrical Safety Guidelines and Warnings | 176
Action to Take After an Electrical Accident | 177
Prevention of Electrostatic Discharge Damage | 177
AC Power Electrical Safety Guidelines | 179
AC Power Disconnection Warning | 180
DC Power Electrical Safety Guidelines | 181
DC Power Disconnection Warning | 182
DC Power Grounding Requirements and Warning | 184
DC Power Wiring Sequence Warning | 186
DC Power Wiring Terminations Warning | 189
Multiple Power Supplies Disconnection Warning | 192
TN Power Warning | 193
Agency Approvals for EX4650 Switches | 193
Compliance Statements for EMC Requirements for EX Series Switches | 195
Canada | 195
Taiwan | 196
European Community | 196
Israel | 196
Japan | 197
Korea | 197
United States | 197
FCC Part 15 Statement | 198
Nonregulatory Environmental Standards | 198
viii

About the Documentation
IN THIS SECTION
Documentation and Release Notes | ix
Using the Examples in This Manual | ix
Documentation Conventions | xi
Documentation Feedback | xiv
Requesting Technical Support | xiv
Use this guide to install hardware and perform initial software configuration, routine maintenance, and
troubleshooting for the EX4650 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.
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.
ix

If the example configuration contains the top level of the hierarchy (or multiple hierarchies), the example
isafull 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;
}
}
}
}
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
x

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]
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 xii defines notice icons used in this guide.
xi

Table 1: Notice Icons
DescriptionMeaningIcon
Indicates important features or instructions.Informational note
Indicates a situation that might result in loss of data or hardware
damage.
Caution
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 xii defines the text and syntax conventions used in this guide.
Table 2: Text and Syntax Conventions
ExamplesDescriptionConvention
To enter configuration mode, type
the configure command:
user@host> configure
Represents text that you type.Bold text like this
user@host> show chassis alarms
No alarms currently active
Represents output that appears on
the terminal screen.
Fixed-width text like this
•A policy term is a named structure
that defines match conditions and
actions.
•Junos OS CLI User Guide
•RFC 1997, BGP Communities
Attribute
•Introduces or emphasizes important
new terms.
•Identifies guide names.
•Identifies RFC and Internet draft
titles.
Italic text like this
xii

Table 2: Text and Syntax Conventions (continued)
ExamplesDescriptionConvention
Configure the machine’s domain
name:
[edit]
root@# set system domain-name
domain-name
Represents variables (options for
which you substitute a value) in
commands or configuration
statements.
Italic text like this
•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.
Represents names of configuration
statements, commands, files, and
directories; configuration hierarchy
levels; or labels on routing platform
components.
Text like this
stub <default-metric metric>;Encloses optional keywords or
variables.
< > (angle brackets)
broadcast | multicast
(string1 |string2 |string3)
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.
| (pipe symbol)
rsvp { # Required for dynamic MPLS
only
Indicates a comment specified on the
same line as the configuration
statement to which it applies.
# (pound sign)
community name members [
community-ids ]
Encloses a variable for which you can
substitute one or more values.
[ ] (square brackets)
[edit]
routing-options {
static {
route default {
nexthop address;
retain;
}
}
}
Identifies a level in the configuration
hierarchy.
Indention and braces ( { } )
Identifies a leaf statement at a
configuration hierarchy level.
; (semicolon)
GUI Conventions
xiii

Table 2: Text and Syntax Conventions (continued)
ExamplesDescriptionConvention
•In the Logical Interfaces box, select
All Interfaces.
•To cancel the configuration, click
Cancel.
Represents graphical user interface
(GUI) items you click or select.
Bold text like this
In the configuration editor hierarchy,
select Protocols>Ospf.
Separates levels in a hierarchy of
menu selections.
>(bold right angle bracket)
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 [email protected]. 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.
xiv

•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/
•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/.
xv

1
CHAPTER
Overview
EX4650 Switches System Overview | 19
EX4650 Chassis | 29
EX4650 Cooling System | 33
EX4650 Power System | 40

EX4650 Switches System Overview
IN THIS SECTION
EX4650 Switches Hardware Overview | 19
EX4650 Switch Models | 25
Identifying EX4650 Switch Models | 26
Chassis Physical Specifications for EX4650 Switches | 28
Field-Replaceable Units in EX4650 Switches | 28
EX4650 Switches Hardware Overview
IN THIS SECTION
Benefits of the EX4650 Switch | 20
Software | 20
EX4650 Switch First View | 20
Power Supplies | 23
Cooling System | 24
Juniper Networks EX4650 Ethernet Switches provide connectivity for high-density environments, scalability
for growing networks, and redundancy. The EX4650 provides the flexibility to support mixed 1-Gigabit
Ethernet, 10-Gigabit Ethernet, 25-Gigabit Ethernet, 40-Gigabit Ethernet, and 100-Gigabit Ethernet
environments.
The EX4650 switch is available as a fixed-configuration switch with the following built-in ports:
•Forty-eight 25-Gigabit Ethernet ports that can operate at 1-Gbps, 10-Gbps, or 25-Gbps speed and
support SFP, SFP+, or SFP28 transceivers.
•Eight 100-Gigabit Ethernet ports that can operate at 40-Gbps or 100-Gbps speed and support QSFP+
or QSFP28 transceivers. When these ports operate at 40-Gbps speed, you can configure four 10-Gbps
interfaces and connect breakout cables, increasing the total number of supported 10-Gbps ports to 80.
19

When these ports operate at 100-Gbps speed, you can configure four 25-Gbps interfaces and connect
breakout cables, increasing the total number of supported 25-Gbps ports to 80.
Four models are available: two featuring AC power supplies and front-to-back or back-to-front airflow
and two featuring DC power supplies and front-to-back or back-to-front airflow.
Benefits of the EX4650 Switch
EVPN-VXLAN campus architecture—The EX4650 switch extends EVPN-VXLAN beyond the data center,
thus providing customers the building blocks for an enterprise-wide fabric. The EVPN-VXLAN protocol is
suitable for campus architectures because it provides Layer 3 transport with Layer 2 capabilities that allow
enterprises to evolve, while also taking into consideration legacy applications. EX4650 also offers core
aggregation capabilities aimed at enterprises with campus networks that want a compact and highly scalable
solution.
Industry-leading 25-Gbps and 100-Gbps wire speeds: The EX4650 Switch offers industry-leading high
density 25-Gbps and 100-Gbps wire speeds that support 48 ports at 100-Gbps or 48 ports at 25-Gbps,
and 8 100-Gbps uplink ports.
Common data center protocols: Like the EX9000 series, the EX4650 also uses data center network
protocols. The network protocols used in the EX4650 are the Ethernet VPN (EVPN) and the Virtual
Extensible LAN (VXLAN). Engineers typically use it with the Border Gateway Protocol and the VXLAN
encapsulation protocol which creates an overlay network on an existing Layer 3 infrastructure. As a result,
the same engineering team can manage the data center and the campus.
Software
Juniper Networks EX Series Ethernet Switches run Junos OS™, which provides Layer 2 and Layer 3
switching, routing, and security services. The same Junos OS code base that runs on EX Series switches
also runs on all Juniper Networks M Series, MX Series, and T Series routers, and SRX Series Services
Gateways.
EX4650 Switch First View
The EX4650 switch has a 1 U form factor and is shipped with redundant fans (4+1) and redundant power
supplies (1+1).
The EX4650 switch is a 25-Gigabit Ethernet enhanced small form-factor (SFP28) switch with 48 SFP28
ports and 8 100-Gbps quad small form-factor (QSFP28) pluggable ports. Each SFP28 port can operate as
a native 25-Gigabit Ethernet port, 10-Gigabit Ethernet port, and can act as a 1-Gbps port based on the
transceivers inserted. Each of the eight uplink ports can operate as either 100-G or 40-G based on the
optics used. They can also be used as 25-Gbps ports or 10-Gbps ports using breakout cables or
channelization.
20

NOTE:
•The SFP-T transceivers are supported only on top or bottom ports, upto a maximum of 24 ports
•The SFP28 speed can be applied only for individual quads (four ports). The speed cannot be
configured for a single port.
Figure 1 on page 21 and Figure 2 on page 21 show the front panel of an EX4650 switch.
Figure 1: Front Panel of an EX4650 Switch
g022501
Figure 2 on page 21 shows the components on the front panel of an EX4650 switch.
Figure 2: Components on the Front Panel of an EX4650 Switch
2—1—QSFP28 portsSFP28 ports
Figure 3 on page 21 shows the rear panel of an EX4650 Switch with AC power supplies.
Figure 3: Rear Panel of an AC-Powered EX4650 Switch
g022505
Figure 4 on page 22 shows the rear view of an EX4650 Switch with DC power supplies.
21