Juniper Networks, Inc.
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www.juniper.net
Juniper Networks, the Juniper Networks logo, Juniper,and Junos are registered trademarks of Juniper Networks, Inc. and/or its affiliates in
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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.
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 limitationsthrough 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 tothe terms and conditions of the End User License Agreement (“EULA”) posted at
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If the information in the latest release notes differs from the information in the
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nuances of network architecture, deployment, and administration. The current list can
be viewed at http://www.juniper.net/books.
Supported Platforms
For the features described in this document, the following platforms are supported:
•
EX2300
Documentation Conventions
Table 1 on page xviii defines notice icons used in this guide.
Represents names of configuration
statements, commands, files, and
directories;configurationhierarchy levels;
or labels on routing platform
components.
About the Documentation
ExamplesDescriptionConvention
•
To configure a stub area, include the
stub statement at the [edit protocols
ospf area area-id] hierarchy level.
•
The console port is labeledCONSOLE.
stub <default-metric metric>;Encloses optional keywords or variables.< > (angle brackets)
| (pipe symbol)
# (pound sign)
[ ] (square brackets)
Indention and braces ( { } )
; (semicolon)
GUI Conventions
Bold text like this
Indicatesa choice between the mutually
exclusivekeywordsor variables on either
side of the symbol. The set of choices is
often enclosed in parentheses for clarity.
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.
Representsgraphicaluser interface(GUI)
items you click or select.
broadcast | multicast
(string1 | string2 | string3)
rsvp { # Required for dynamic MPLS onlyIndicates a comment specified on the
community name members [
community-ids ]
[edit]
routing-options {
static {
route default {
nexthop address;
retain;
}
}
}
•
In the Logical Interfaces box, select
All Interfaces.
•
To cancel the configuration, click
Cancel.
> (bold right angle bracket)
Documentation Feedback
We encourage you to provide feedback, comments, and suggestions so that we can
improve the documentation. You can provide feedback by using either of the following
methods:
•
Online feedback rating system—On any page of the Juniper Networks TechLibrary site
at http://www.juniper.net/techpubs/index.html,simply click the stars to ratethe content,
and use the pop-up form to provide us with information about your experience.
Alternately, you can use the online feedback form at
http://www.juniper.net/techpubs/feedback/.
Separates levels in a hierarchy of menu
selections.
In the configuration editor hierarchy,
select Protocols>Ospf.
E-mail—Sendyourcomments to techpubs-comments@juniper.net.Includethe document
or topic name, URL or page number, and software version (if applicable).
Requesting Technical Support
Technicalproduct support is availablethroughthe Juniper Networks TechnicalAssistance
Center (JTAC). If you are a customer with an active J-Care or Partner Support Service
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
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 solutions and answer questions using our Knowledge Base: http://kb.juniper.net/
•
Download the latest versions of software and review release notes:
http://www.juniper.net/customers/csc/software/
•
Search technical bulletins for relevant hardware and software notifications:
http://kb.juniper.net/InfoCenter/
•
Join and participate in the Juniper Networks Community Forum:
http://www.juniper.net/company/communities/
•
Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/
Toverify service entitlementby product serial number, use our Serial Number Entitlement
(SNE) Tool: https://entitlementsearch.juniper.net/entitlementsearch/
Opening a Case with JTAC
You can open a case with JTAC on the Web or by telephone.
•
Use the Case Management tool in the CSC at http://www.juniper.net/cm/.
•
Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).
EX2300 Switch Hardware and CLI Terminology Mapping on page 13
EX2300 Switches Hardware Overview
Juniper Networks EX Series Ethernet Switches provide scalable connectivity for the
enterprise market, including branch offices, campus locations, and data centers. The
Juniper Networks EX2300 Ethernet Switches run the Juniper Networks Junos operating
system (Junos OS), which provides Layer 2 and Layer 3 switching, routing, and security
services.
EX2300 switches provide connectivity for low-density environments.
This topic describes:
•
EX2300 Switches First View on page 3
•
Uplink Ports on page 4
•
Console Ports on page 4
•
Cable Guard on page 4
•
Security Slot on page 5
•
Power over Ethernet (PoE) Ports on page 5
•
Front Panel of an EX2300 Switch on page 5
•
Rear Panel of an EX2300 Switch on page 8
EX2300 Switches First View
EX2300 switches are available in models with 12 or 24, or 48 built-in network ports that
support RJ-45 cable connectors.Thecompact,fanlessEX2300-C switches have 12 RJ-45
network ports.
Up to four 10-Gigabit Ethernet uplink ports that support small form-factor pluggable
plus (SFP+) transceivers and small form-factor pluggable (SFP) transceivers.
•
12 (in EX2300-C switches), 24, or 48 built-in Gigabit Ethernet RJ-45 network ports with
10/100/1000 BASE-T connectors.
•
Virtual Chassis capability—You can connect up to four EX2300 switches (including
EX2300-C switches) to form one unit that you manage as a single chassis, called a
Virtual Chassis.
•
Power over Ethernet (PoE) or Power over Ethernet Plus (PoE+) on all RJ-45 network
ports (in PoE-capable models).
Uplink Ports
EX2300-C switches have two 10-Gigabit Ethernet uplink ports that support SFP and
SFP+ transceivers. EX2300 switches except the EX2300-C switch model and the have
four 10-Gigabit Ethernet uplink ports that support SFP and SFP+ transceivers. You can
use these uplink ports as network ports or configure these ports as Virtual Chassis ports
(VCPs) and use them to connect up to four switches by using SFP+ transceivers to form
a Virtual Chassis.
Console Ports
Cable Guard
NOTE: You cannot form a Virtual Chassis by using SFP transceivers.
For forming a Virtual Chassis, you must explicitly configure an uplink port on each of the
switches to be connected as a VCP. See Setting an Uplink Port on an EX Series Switch asa Virtual Chassis Port (CLI Procedure).
For information about the supported optical and copper interfaces, see “Pluggable
Transceivers Supported on EX2300 Switches” on page 75.
EX2300 switches have twoconsole ports—an RJ-45 console port and a Mini-USB Type-B
console port. The RJ-45 port accepts a cable that has an RJ-45 connector and the
Mini-USB Type-B port accepts a Mini-B plug (5-pin) connector to connect the switch to
a console management device.
On an EX2300-C switch, you can install a cable guard to secure the cables connected
to the switch. The cable guard has slots in the front of it through which you can pass all
the cables to prevent them from being accidently unplugged or removed after they are
connected. See “Mounting an EX2300 Switch on a Desk or Other Level Surface” on
page 105, “Mounting an EX2300-C Switch Under a Desk or Other Level Surface by Using
Screws” on page 107, and “Mounting an EX2300-C Switch on or Under a Surface Made
of Ferrous Material” on page 126.
An EX2300-C switch has a security slot on the right panel of the chassis. You can use
the security slot to lock and secure the chassis in the installation site with a standard
cable lock. See “Mounting an EX2300 Switch on a Desk or Other Level Surface” on
page 105, “Mounting an EX2300-C Switch Under a Desk or Other Level Surface by Using
Screws” on page 107, and “Mounting an EX2300-C Switch on or Under a Surface Made
of Ferrous Material” on page 126.
Power over Ethernet (PoE) Ports
EX2300 switches are availablewithor without PoE/PoE+ capability.Models that support
PoE/PoE+ provide that support on all RJ-45 network ports. PoE ports provide electrical
current to devices—such as IP phones, wireless access points, and security
cameras—through network cables, thus eliminating the need for separate power cords
for those devices. Uplink ports do not support PoE.
NOTE: IEEE 802.3at class 4 powered devices require category 5 or higher
Ethernet cables.
Chapter 1: System Overview
The remainder of this topic uses the term PoE to refer to both PoE and PoE+ unless there
is a need to distinguish between the two.
Front Panel of an EX2300 Switch
The front panel of an EX2300-C switch consists of the following components:
•
RJ-45 network ports—depending on the switch model, either of:
•
12 10/100/1000 BASE-T Gigabit Ethernet ports with PoE/PoE+ capability in
EX2300-C-12P
•
12 10/100/1000 BASE-T Gigabit Ethernet ports without PoE capability in
EX2300-C-12T
•
One USB port
•
One management Ethernet port
•
Three chassis status LEDs
•
Four port status mode LEDs in models with PoE capability and three port status mode
LEDs in models without PoE capability
Two built-in 10-Gigabit Ethernet uplink ports. You can use the uplink ports to forward
network traffic or configure them as VCPs to interconnect EX2300 switches into a
Virtual Chassis.
•
One electrostatic discharge (ESD) point
Figure 1 on page 6 shows the front panel of an EX2300-C switch with 12 Gigabit Ethernet
ports with PoE capability and Figure 2 on page 6 shows the front panel of an EX2300-C
switch with 12 Gigabit Ethernet ports without PoE capability.
Figure 1: Front Panel of an EX2300-C Switch with 12 Gigabit Ethernet
Ports with PoE Capability
6—1—Factory Reset/Mode buttonRJ-45 network ports
7—2—Mini-USB console portUSB port
8—3—RJ-45 console portManagement Ethernet port
9—4—10-Gigabit Ethernet uplink portsChassis status LEDs
10—5—ESD pointPort status mode LEDs. The LED labeled
PoE is present only on models with PoE
capability.
Figure 2: Front Panel of an EX2300-C Switch with 12 Gigabit Ethernet
Ports without PoE Capability
6—1—Factory Reset/Mode buttonRJ-45 network ports
7—2—Mini-USB console portUSB port
8—3—RJ-45 console portManagement Ethernet port
9—4—10-Gigabit Ethernet uplink portsChassis status LEDs
The front panel of EX2300 switches except the EX2300-C switch models consists of
the following components:
•
RJ-45 network ports—depending on the switch model, either of:
•
24 or 48 10/100/1000 BASE-T Gigabit Ethernet ports without PoE capability in the
EX2300-24T, EX2300-24T-DC and EX2300-48T models
•
24 or 48 10/100/1000 BASE-T Gigabit Ethernet ports with PoE/PoE+ capability in
the EX2300-24P and EX2300-48P model
•
Three chassis status LEDs
•
Four port status mode LEDs in models with PoE capability and three port status mode
LEDs in models without PoE capability
•
One Factory Reset/Mode button
•
One mini-USB console port
•
Four built-in 10-Gigabit Ethernet uplink ports . You can use these ports to forward
network traffic or configure them into VCPs to interconnect EX2300 switches into a
Virtual Chassis.
Figure 3 on page 7 shows the front panel of an EX2300 switch with 24 Gigabit Ethernet
ports with PoE capability and Figure 4 on page 8 shows the front panel of an EX2300
switch with 48 Gigabit Ethernet ports.
Figure 3: Front Panel of an EX2300 Switch with 24 Gigabit Ethernet Ports
with PoE Capability
4—1—Factory Reset/Mode buttonRJ-45 network ports
5—2—Mini-USB console portChassis status LEDs
6—3—10-Gigabit Ethernet uplink portsPort status mode LEDs. The LED labeled
Figure 4: Front Panel of an EX2300 Switch with 48 Gigabit Ethernet Ports
with PoE Capability
PoE is present only on models with PoE
capability.
Rear Panel of an EX2300 Switch
The rear panel of an EX2300-C switch consists of the following components:
4—1—Factory Reset/Mode buttonRJ-45 network ports
5—2—Mini-USB console portChassis status LEDs
6—3—10-Gigabit Ethernet uplink portsPort status mode LEDs. The LED labeled
•
Serial number ID label
•
CLEI code label
•
One protective earthing terminal
•
Heatsink
•
One AC power cord inlet
Figure 5 on page 8 shows the rear panel of an EX2300-C switch with 12 Gigabit Ethernet
ports with PoE capability and Figure 6 on page 9 shows the rear panel of an EX2300-C
switch with 12 Gigabit Ethernet ports without PoE capability.
EX2300-C switches being fanless models have no exhaust openings. EX2300 switches
have vents on the top of the chassis. The PoE models have a heatsink installed in the
rear panel to dissipate heat, while non-PoE models have no heatsink.
Figure 5: Rear Panel of an EX2300-C Switch with 12 Gigabit Ethernet Ports
with PoE Capability
Figure 6: Rear Panel of an EX2300-C Switch with 12 Gigabit Ethernet
Ports without PoE Capability
3—1—Protective earthing terminalCLEI code label
4—2—AC power cord inletSerial number ID label
The rear panel of the EX2300 switch except the EX2300-C switch consists of the following
components:
•
One management Ethernet port that supports an RJ-45 connector
•
One console port that supports an RJ-45 connector
•
One protective earthing terminal
•
One ESD point
•
Air exhaust openings
•
Serial number ID label
•
CLEI code label
•
One AC power cord inlet or DC power terminals
•
One USB port
Figure 7 on page 10 shows the rear panel of an AC-powered EX2300 switch with 24
Gigabit Ethernet ports with PoE capability except the and Figure 10 on page 11 shows
the rear panel of an EX2300 switch with 48 Gigabit Ethernet ports with PoE capability.
Figure 8 on page 10 shows the rear panel of an AC-powered EX2300 switch with 24
Gigabit Ethernet ports without PoE capability and Figure 11 on page 11 shows the rear
panel of an EX2300 switch with 48 Gigabit Ethernet ports without PoE capability.
Figure9 on page 10 shows the rear panel of a DC-powered EX2300 switch with 24 Gigabit
Ethernet ports.
NOTE: DC-powered EX2300 switches do not provide PoE.
The AC power cord retainer clips extend out of the chassis by 3 in (7.62 cm).
Figure 10: Rear Panel of an AC-Powered EX2300 Switch with 48 Gigabit
Ethernet Ports with PoE Capability
6—1—Air exhaust openingsUSB port
7—2—Serial number ID labelManagement Ethernet port
8—3—CLEI code labelRJ-45 console port
9—4—AC power cord inletProtective earthing terminal
5—ESD point
Figure 11: Rear Panel of an AC-Powered EX2300 Switch with 48 Gigabit
Ethernet Ports without PoE Capability
5—ESD point
Related
Documentation
EX2300 Switch Models on page 11•
• Site Preparation Checklist for EX2300 Switches on page 53
EX2300 Switch Models
The EX2300 switch is available with 12 or 24, or 48 built-in RJ-45 network ports with full
Power over Ethernet (PoE) or Power over Ethernet plus (PoE+) capability on all built-in
RJ-45 network ports (access ports), or no PoE capability. Table 3 on page 12 lists the
EX2300 switch models.
EX2300-C switches have two uplink ports. EX2300 switches except the EX2300-C switch
model and the EX2300-48MP switch model have four uplink ports. The EX2300-48MP
switch model has six 10-Gigabit Ethernet uplink ports. These uplink ports support SFP
and SFP+ transceivers. You can use these uplink ports as network ports or configure
these ports as Virtual Chassis ports (VCPs) and use them to connect up to four switches
by using SFP+ transceivers to form a Virtual Chassis. You cannot form a Virtual Chassis
by using SFP transceivers. Uplink ports do not support PoE.
6—1—Air exhaust openingUSB port
7—2—Serial number ID labelManagement Ethernet port
8—3—CLEI code labelRJ-45 console port
9—4—AC power cord inletProtective earthing terminal
EX2300 Switch Hardware and CLI Terminology Mapping
This topic describes the hardware terms used in EX2300 switch documentation and the
corresponding terms used in the Junos OS CLI. See Table 4 on page 13.
Table 4: CLI Equivalents of Terms Used in Documentation for EX2300 Switches
Hardware Item (as
Displayed in the
CLI)
Chassis
Description (as Displayed in the
CLI)
•
EX2300-C-12T
•
EX2300-C-12P
•
EX2300-24T
•
EX2300-24P
•
EX2300-24MP
•
EX2300-24T-DC
•
EX2300-48T
•
EX2300-48P
•
EX2300-48MP
Value (as
Displayedin
the CLI)
Item in
Documentation
Switch chassis–One of the following:
Additional
Information
“Chassis Physical
Specifications for
EX2300 Switches”
on page 15
FPC (n)
Abbreviated name of the Flexible PIC
Concentrator (FPC)
One of the following:
•
EX2300-C-12T
•
EX2300-C-12P
•
EX2300-24T
•
EX2300-24P
•
EX2300-24MP
•
EX2300-24T-DC
•
EX2300-48T
•
EX2300-48P
•
EX2300-48MP
On EX2300 Virtual Chassis:
•
Member ID of the switch within the
Virtual Chassis
Value of n is
always 0.
n is a value in
the range of
0 through 3.
The switch does not
have actual FPCs. In
this case, FPC refers
to the switch itself.
In this case, the FPC
number refers to the
member ID assigned
to the switch.
Understanding
Interface Naming
Conventions on EX
Series Switches
Understanding EX
Series Virtual Chassis
Components
Chassis Physical Specifications for EX2300 Switches on page 15
•
Chassis Status LEDs in EX2300 Switches on page 16
•
Management Port LEDs in EX2300 Switches on page 20
•
RJ-45 Network Port LEDs and Uplink Port LEDs in EX2300 Switches on page 21
Chassis Physical Specifications for EX2300 Switches
The EX2300 switch chassis is a rigid sheet-metal structure that houses the hardware
components. Table 5 on page 15 summarizes the physical specifications of the EX2300
switch chassis.
Table 5: Physical Specifications of the EX2300 Switch Chassis
EX2300 ValueEX2300-C ValueDescription
•
1.72 in. (4.36 cm)Chassis height
All models except EX2300-24MP and
EX2300-48MP—1.75 in.(4.45 cm)
•
EX2300-24MP and EX2300-48MP
models—1.7 in. (4.33 cm)
Chassis width
•
10.98 in. (27.9 cm)
•
18.86 in. (47.9 cm) with mounting brackets
attached
•
All models except EX2300-24MP and
EX2300-48MP
•
17.4 in. (44.19 cm)
•
19 in. (48.26 cm) with mounting brackets
attached
•
EX2300-24MP and EX2300-48MP models
•
17.36 in. (44.09 cm)
•
18.95 in. (48.13 cm) with mounting brackets
attached
Table 5: Physical Specifications of the EX2300 Switch Chassis (continued)
EX2300 ValueEX2300-C ValueDescription
•
9.45 in. (23.8 cm)Chassis depth
All models except EX2300-24MP and
EX2300-48MP
•
Models without PoE capability: 10.2 in.
(25.9 cm)
•
Models with PoE capability: 12.2 in.
(30.98 cm)
•
EX2300-24MP—10 in. (25.4 cm)
•
EX2300-48MP—14.45 in. (36.71 cm)
•
Weight
Related
Documentation
EX2300-C-12T: 5.45 lb (2.48 kg)
•
EX2300-C-12P: 6.99 lb (3.17 kg)
Rack Requirements on page 61•
• Cabinet Requirements on page 63
• Mounting an EX2300 Switch on page 104
• Installing and Connecting an EX2300 Switch on page 103
Chassis Status LEDs in EX2300 Switches
The front panel of EX2300 switches except the EX2300-24MP and EX2300-48 MP
models has three chassis statusLEDs labeledSYS,ALM, and MST. See Figure 12 on page 16
and Figure 13 on page 17.
Figure 12: Chassis Status LEDs in EX2300-C Switches
Figure 13: Chassis Status LEDs in EX2300 SwitchesExcept the EX2300-C,
EX2300-24MP and EX2300-48MP Models
1— Chassis Status LEDs
Table 6 on page 17 describes the chassis status LEDs in EX2300 switches except the
EX2300-24MP and EX2300-48 MP models, their colors and states, and the status they
indicate.
Table 6: Chassis Status LEDs in EX2300 Switches Except the EX2300-24MP and EX2300-48
MP Models
GreenSYS
RedALM
Yellow
State and DescriptionColorLED Label
•
On steadily—Junos OS for EX Series
switches has been loaded on the switch.
•
Blinking—The switch is booting.
•
Off—The switch is powered off or is halted.
There is a major alarm.
NOTE: When you connect power to the switch,
the alarm LED (ALM) glows red. This behavior
is normal. Plugging an active Ethernet cable
into the management port (MGMT) on the
switch completes the network link and turns
off the ALM LED. (See “Connecting a Device
to a Network for Out-of-Band Management”
on page 147.)
Connecting the switch to a dedicated
management console instead of a network
does not affectthe ALM LED. The LED remains
red until the switch is connected to a network.
There is a minor alarm.
NOTE: The ALM LED glows yellow if you
commit a configuration to make it active on
the switch without creating a rescue
configuration to back it up. To save the most
recentlycommitted configuration as the rescue
configuration, enter the operational mode
command request system configurationrescue
Table 6: Chassis Status LEDs in EX2300 Switches Except the EX2300-24MP and EX2300-48
MP Models (continued)
State and DescriptionColorLED Label
GreenMST
In a standalone EX2300 switch:
•
On steadily—The switch is functioning
normally as the master.
•
Off—The switch is powered off or is halted.
In a Virtual Chassis configuration:
•
On steadily—The switch is functioning
normally and is the master in the Virtual
Chassis configuration.
•
Blinking—The switch is functioning normally
and is the backup in the Virtual Chassis
configuration.
•
Off—The switch is a linecard member in the
Virtual Chassis configuration or is halted.
A major alarm (red) indicates a critical error condition that requires immediate action.
A minor alarm (yellow) indicates a noncritical condition that requires monitoring or
maintenance. A minor alarm that is left unchecked might cause interruption in service or
performance degradation.
All three LEDs can be lit simultaneously.
You can view the colors of the two LEDs remotely through the CLI by issuing the
operational mode command show chassis led.
The front panel of EX2300-24MP and EX2300-48 MP models has three chassis status
LEDs labeled SYS, ALM, and MST. See Figure 14 on page 18.
Figure 14: Chassis Status LEDs in EX2300-24MP and EX2300-48MP
Models
1— Chassis Status LEDs
Table 7 on page 19 describes the chassis status LEDs in EX2300-24MP and EX2300-48
MP models, their colors and states, and the status they indicate.
Table 7: Chassis Status LEDs in EX2300-24MP and EX2300-48 MP Models
State and DescriptionColorLED Label
•
GreenSYS
On steadily—Junos OS for EX Series
switches has been loaded on the switch.
•
Blinking—The switch is booting.
•
Off—The switch is powered off or is halted.
RedALM
Yellow
There is a major alarm.
NOTE: When you connect power to the switch,
the alarm LED (ALM) glows red. This behavior
is normal. Plugging an active Ethernet cable
into the management port (MGMT) on the
switch completes the network link and turns
off the ALM LED. (See “Connecting a Device
to a Network for Out-of-Band Management”
on page 147.)
Connecting the switch to a dedicated
management console instead of a network
does not affectthe ALM LED. The LED remains
red until the switch is connected to a network.
There is a minor alarm.
NOTE: The ALM LED glows yellow if you
commit a configuration to make it active on
the switch without creating a rescue
configuration to back it up. To save the most
recentlycommitted configuration as the rescue
configuration, enter the operational mode
command request system configurationrescue
save.
There is no alarm or the switch is halted.Unlit
GreenMST
In a standalone EX2300 switch:
•
On steadily—The switch is functioning
normally as the master.
•
Off—The switch is powered off or is halted.
In a Virtual Chassis configuration:
•
On steadily—The switch is functioning
normally and is the master in the Virtual
Chassis configuration.
•
Blinking—The switch is functioning normally
and is the backup in the Virtual Chassis
configuration.
•
Off—The switch is a linecard member in the
Virtual Chassis configuration or is halted.
A major alarm (red) indicates a critical error condition that requires immediate action.
A minor alarm (yellow) indicates a noncritical condition that requires monitoring or
maintenance. A minor alarm that is left unchecked might cause interruption in service or
performance degradation.
All LEDs can be lit simultaneously.
Related
Documentation
EX2300 Switches Hardware Overview on page 3•
• Chassis Component Alarm Conditions on EX2300 Switches on page 194
• Checking Active Alarms with the J-Web Interface on page 196
• Understanding Alarm Types and Severity Levels on EX Series Switches on page 193
Management Port LEDs in EX2300 Switches
The management port on an EX2300 switch has two LEDs that indicate link/activity and
port status. The EX2300 switches except the EX2300-C switch and EX2300-24MP and
EX2300-48MP models have the management port on the rear panel; the EX2300-C
switches and EX2300-24MP and EX2300-48MP models have the management port on
the front panel. See Figure 15 on page 20 and Figure 16 on page 20.
Figure 15: LEDs on the Management Port on EX2300-C Switches
2—1—Status LEDLink/Activity LED
Figure 16: LEDs on the Management Port on EX2300 Switches Except
EX2300-24MP and EX2300-48MP Models
2—1—Status LEDLink/Activity LED
Table 8 on page 21 describes the Link/Activity LED.
Table 8: Link/Activity LED on the Management Port on EX2300 Switches
State and DescriptionColorLED
•
GreenLink/Activity
Blinking—The port and the link are active, and there is link activity.
•
Off—The port is not active.
Table 9 on page 21 describes the Status LED.
Table 9: Status LED on the Management Port on EX2300 Switches
State and DescriptionColorLED
Indicates the speed. The speed indicators are:
•
Off—Link speed is 10 Mbps.
•
Blinking—Link speed is 100 Mbps.
•
On Steadily—Link speed is 1000 Mbps.
Related
GreenStatus
Connecting a Device to a Network for Out-of-Band Management on page 147•
Documentation
RJ-45 Network Port LEDs and Uplink Port LEDs in EX2300 Switches
Each RJ-45 network port and uplink port on the front panel of an EX2300 switch has two
LEDs that indicate link/activity and port status. See Figure 17 on page 21,
Figure 18 on page 21, and Figure 19 on page 22.
Figure 17: LEDs on RJ-45 Network Ports
Figure 18: LEDs on the Uplink Ports in EX2300-C Switches
Figure 19: LEDs on the Uplink Ports in an EX2300 Switches Except the
EX2300-C Switches
1— LEDs on the uplink ports
Table 10 on page 22 describes the Link/Activity LED.
Table10: Link/ActivityLED on the RJ-45 NetworkPorts and the Uplink Ports in EX2300 Switches
State and DescriptionColorLED
•
GreenLink/Activity
Blinking—The port and the link are active, and there is link activity.
•
On steadily—The port and the link are active, but there is no link activity.
•
Off—The port is not active.
Figure 20 on page 22 shows the LEDs that indicate the status of one of the four port
parameters—speed, duplex mode, administrative status, and Power over Ethernet (PoE)
status. Use the Factory Reset/Mode button on the far right side of the front panel to
toggle the Status LED to show the different port parameters for RJ-45 network ports.
You can tell which port parameter is indicated by the Status LED by looking at which port
status mode LED (SPD, DX, EN, and PoE) is lit. The LED labeled PoE is not available on
switch models with RJ-45 network ports that do not provide PoE.
Figure 20: Port Mode LEDs on EX2300 Switches
1— Port mode LEDs
Table 11 on page 23 describes the Status LED on the RJ-45 network ports.
Table 11: Status LED on the RJ-45 Network Ports in EX2300 Switches
State and DescriptionPort Parameters
Speed (SPD)
Duplex mode (DX)
NOTE: On EX2300-24T switches, only
the ports labeled 0/0 through 0/15
support half-duplex. On EX2300-48T
switches, only the ports labeled 0/0
through 0/15 and 0/24 through 0/39
support half-duplex.
Administrative status (EN)
PoE status (PoE)
Indicates the speed. The speed indicators are:
•
Unlit—10 Mbps
•
Blinking—100 Mbps
•
On steadily—1000 Mbps
Indicates the duplex mode. The status indicators are:
•
Green—Port is set to full-duplex mode.
•
Unlit—Port is set to half-duplex mode.
Indicates the administrative status. The status indicators are:
•
Green—Port is administratively enabled.
•
Unlit—Port is administratively disabled.
Indicates the PoE status. The status indicators are:
•
On steadily—PoE is enabled on the port and a device is drawing power.
•
Blinking—PoE is enabled on the port, but no power is drawn from the port.
•
Unlit—PoE is not enabled on the port.
NOTE: The PoE Status LED is available on the following EX2300 switch models:
•
EX2300-C-12P
•
EX2300-24P
•
EX2300-24MP
•
EX2300-48P
•
EX2300-48MP
The uplink ports operate in full-duplex mode and PoE is not applicable on uplink ports.
The Status LED on uplink ports indicatethe Speed (SPD) and Administrative status(EN).
Table 12 on page 23 describes the Status LED on the uplink ports.
Table 12: Status LED on the Uplink Ports in EX2300 Switches
State and DescriptionLED
Status LED
You can tell which port parameter is indicated by the Status LED on RJ-45 network ports
and uplink ports by issuing the operational mode command show chassis led.
Indicates the speed and administrative status. The indicators are:
•
On steadily—10 Gbps
•
Blinking—1 Gbps
•
Unlit—The port is administratively disabled or the link is down.
Cooling System and Airflow in an EX2300 Switch on page 25
Cooling System and Airflow in an EX2300 Switch
The cooling systemin EX2300 switches—exceptEX2300-C which is the compact, fanless
model—consists of two fans along the rear of the chassis that provide front-to-back
chassis cooling.
The cooling system in EX2300-C switches consists of the vents on the top of the chassis
and the heatsinks installed in the rear panel in PoE models. Do not block the vents on
the chassis; doing so can lead to overheating of the switch chassis.
This topic describes:
•
Airflow Direction in EX2300 Switches with 24 Ports with PoE Capability on page 25
•
Airflow Direction in EX2300 Switches with 48 Ports with PoE Capability on page 26
•
Airflow Direction in EX2300 Switches without PoE Capability on page 27
Airflow Direction in EX2300 Switches with 24 Ports with PoE Capability
Figure 21 on page 26 shows the airflow in EX2300 switches with 24 ports with PoE
Figure 23: Airflow Direction in EX2300 Switches with 24 Ports without
PoE Capability
Related
Documentation
Under normal operating conditions, the fans operate at a moderate speed to reduce
noise. Temperature sensors in the chassis monitor the temperature within the chassis.
If any fan fails or if the temperature inside the chassis rises above the threshold, the
switch raises an alarm and all functioning fans operate at a higher speed than normal.
If the temperature inside the chassis rises above the threshold, the switch shuts down
automatically.
• EX2300 Switches Hardware Overview on page 3
• Chassis Status LEDs in EX2300 Switches on page 16
• Understanding Alarm Types and Severity Levels on EX Series Switches on page 193
• Prevention of Electrostatic Discharge Damage on page 243
The power supply in EX2300 switches is built in along the rear panel of the chassis, with
an AC power cord inlet or DC power terminals on the rear panel to connect power to the
switch.
NOTE: After powering on the switch, wait for at least 60 seconds before
powering it off. After powering off the switch, wait for at least 60 seconds
before powering it back on.
Table 13 on page 29 lists the power consumed by each EX2300 switch model.
NOTE: This topic applies only to the J-Web Application package.
When you log in to the J-Web user interface, the dashboard for the Juniper Networks EX
Series Ethernet Switches appears. Use the dashboard to view system information.
The Update Availablewindow appearsif there is a latestupdateof the J-Web Application
package available on the Juniper Networks server. This window is enabled by the auto
update feature of J-Web.
NOTE:
•
The Update Available window will not appear when you log in, if you have
not selected the Check for updates automaticallyon every login in the UpdatePreference section in the Maintain > Update J-Web side pane. By default,
the Check for update automatically on every login is selected.
•
If you choose Update Later, you can update to the latest J-WebApplication
package by clicking the orange icon next to Update Available on the top
pane of the J-Web interface or through Maintain > Update J-Web.
The dashboard comprises a graphical chassis viewer and four panels.
The Dashboard panel displays a graphical view of the chassis of a switch. In a Virtual
Chassis, it displays a graphical view of each member switch.
In a Virtual Chassis, the defaultvalues are shown on the Dashboardpanel when no chassis
image is clicked. The panel displays the value for a switch if you click its image.
NOTE: If the member switch is not present, inactive, or not provisioned, you
cannot expand the member switch image.
In J-Web Application package Release 14.1X53-A2, you can form a Virtual
Chassisusing EX4600 and EX4300 switches. When in a mixed Virtual Chassis
consisting of EX4600 switches and EX4300 switches,the EX4600 switches
can be the master, backup, or in the linecard role, while the EX4300 switches
must be in the linecard role.
Table 14 on page 32 lists the details that are displayed on each member switch.
Table 14: Details of a Virtual Chassis Member Switch
ExampleDetails
EX3300Model number of the member switch
Assigned ID that applies to the entire Virtual Chassis
configuration
Role of the member switch
Status of the member switch
The status of the member switch is displayed on the image of the switch. If the member
switchappears dimmed, it means the switch is not present, is inactive, or is not provisioned
in the Virtual Chassis. If the member switchdoes not appear dimmed, it means the switch
is present and is active.
ID 2
NOTE: If the member switch is not provisioned, the serial number
of the switch is displayed instead of its ID.
Master
Possible roles are: Master, Backup, or Linecard
Prsnt
Possible statuses are: Prsnt, NotPrsnt, Inactive, or Unprvsnd
Table 15 on page 33 describes the possible status of a member switch.
Table 15: Status of a Member Switch in a Virtual Chassis
It means the member switchIt appears asIf the member switch is
Chapter 5: Viewing System Information
Not present
Inactive
Not provisioned
PrsntPresent
NotPrsnt
dimmed and
Inactive
dimmed and
Unprvsnd
Has established physical and logical connections with Virtual
Chassis member switches.
Has been disconnected from the existing Virtual Chassis.dimmed and
Has established physical connections, but is unable to establish
logical connections.
Cannot synchronize with the existing preprovisioned Virtual
Chassis.
Click Rear View for a graphical view of the rear panel of the switch.
Click Preferences to choose which panels must be displayed and set the refresh interval
forchassis viewer information.Click OK to saveyour changes and return to the dashboard
or click Cancel to return to the dashboard without saving changes.
NOTE: You can drag the various panels to different locations in the J-Web
window.
System Information Panel
Table 16: System Information
System name
Device model
DescriptionField
Indicates the local name of the EX Series switch. The local
name of the EX Series switches changes when an individual
image is clicked.
Indicatesthe model of the EX Series switch.In a Virtual Chassis
configuration,toindicatethe model of a switch, click the image
of that switch.
NOTE: In a Virtual Chassis setup for an EX6210, EX8208, or
EX8216 switch, the Device model field displays details of the
master Routing Engine. To view details of a member, select it.
For EX3200 switches; and for EX2200, EX2200-C, EX3300,
EX4200, EX4300, EX4500, EX4550, and EX4600 switches
that are not configured as Virtual Chassis, the value
displayed in Inventory details field is always 1 FPC. FPC is a
legacy term for a slot in a large Juniper Networks chassis;
which simply refers to the standalone switch.
•
For EX2200 and EX2200-C switches configured as a Virtual
Chassis, the value displayed in the Inventory details field is
1–4 FPC, with the number corresponding to the number of
member switches.
•
For EX3300 switches configured as a Virtual Chassis, the
value displayed in the Inventorydetails field is 1–6 FPC, with
the number corresponding to the number of member
switches.
NOTE: For Junos OS Release14.1X53-D10and later,EX3300
switches configured as a Virtual Chassis display the value
1–10 FPC in the Inventory details field.
•
For EX4200, EX4500, EX4550, and EX4600 switches
configured as a Virtual Chassis, the value displayed in the
Inventory details field is 1–10 FPC, with the number
corresponding to the number of member switches.
•
For EX6210 switches, the values displayed in the Inventory
details field are 1–2 CB and 1–9 FPC. CB, or Control Board,
refers to the SRE module. FPC refers to line cards and the
FPC within the CB.
•
For an EX8208 switch, the values displayed in Inventory
details field are 1–3 CB and 0–8 FPC. CB, or Control Board,
refers to SRE and SF modules. FPC refers to line cards.
•
For EX8216 switches, the values displayed in Inventory
details field are 1–2 CB and 0–16 FPC. CB, or Control Board,
refers to RE modules and FPC refers to line cards.
•
For an XRE200 External Routing Engine in an EX8200 Virtual
Chassis, the value displayed in Inventory details is 1 XRE.
XRE refers to RE modules. For XRE200 External Routing
Engines configured as a Virtual Chassis, the values displayed
in Inventory details are 1–2 XRE and 0–4 LCC, where LCC
refers to the EX8200 line card chassis.
Junos image
Boot image
Indicatesthe version of the Junos OS image. In a Virtual Chassis
configuration, the Junos OS image of the master switch is
displayed by default. To display the Junos OS image of a
specific switch, click the image of that switch.
Indicatesthe version of the boot image that is used. In a Virtual
Chassis configuration, the boot image of the master switch is
displayed by default. To display the boot image of a specific
switch, click the image of that switch.
Indicates the time since the last reboot. In a Virtual Chassis
configuration,to displaythe uptime of the specific switch, click
the image of that switch.
Indicates the time when the switch was last configured.Last configured time
Health Status Panel
Table 17: Health Status
DescriptionField
EX2200, EX2200-C, EX3200, EX3300, EX4200, and EX4300 Switches
Memory util.
Flash
Indicates the memory used in the Routing Engine. In a Virtual Chassis configuration, the memory
utilization value of the master Routing Engine is displayed.
NOTE: In EX4300 and EX4600 Virtual Chassis, to display the Routing Engine memory utilization of
the master or backup, click the respective image. J-Web is supported on EX4600 switches only in
J-Web Application package Release 14.1X53-A2.
Indicates the usage and capacity of internal flash memory and any external USB flash drive.
NOTE: In EX4300 Virtual Chassis, the flash memory utilization of the master switch is displayed by
default. To display the flash memory utilization along with the internal and external flash memory
utilization details for each switch or line card, mouse over individual switch or line card images.
In EX4600 Virtual Chassis, to displaythe flash memory utilization along with the internal and external
flash memory utilization details of each switch or line card mouse over the green-colored indicator.
Temp.
CPU load
Indicates the chassis temperature status. Temperatures are listed in Celsius and the corresponding
Fahrenheit values.
NOTE: The Temp field is unavailable for a standalone EX2200-C switch.
The Temp field is dynamically available for an EX2200 Virtual Chassis switch based on the model
of the member clicked.
NOTE: In EX4300 Virtual Chassis, the temperature of the master Routing Engine is displayed by
default. To display the temperature of the Routing Engine of any switch, click the image of that
switch.
In EX4600 Virtual Chassis, to display the temperature of the Routing Engine of each switch, mouse
over the green-colored indicator.
Indicates the average CPU usage over 15 minutes. In a Virtual Chassis configuration, on loading the
master or backup switch, the CPU load for that switch's Routing Engine is displayed by default. To
display the CPU load for a specific switch's Routing Engine, click the image of that switch.
Indicates the status of the fans in the fan tray. The possible values are OK, Failed, and Absent. In a
Virtual Chassis configuration, the fan status of the master switch is displayed by default. To display
the fan status for any switch , click the image of that switch.
NOTE: The Fan status field is unavailable for a standalone EX2200-C switch.
The Fan status field is dynamically available for an EX2200 Virtual Chassis switch based on the
model of the member clicked.
In EX4600 Virtual Chassis, mouse over the fan icon to display the fan status of all the switches.
EX4500 and EX4550 Switches
Memory util.
Temp.
Fan status
Indicates the memory used in the Routing Engine. In a Virtual Chassis configuration, the memory
utilization value of the master Routing Engine is displayed.
Indicates the usage and capacity of internal flash memory and any external USB flash drive.Flash
Indicates the chassis temperature status. Temperatures in the dashboard are listed in Celsius and
the corresponding Fahrenheit values.
NOTE: The Temp field is unavailable for an EX4500 switch.
Indicates the average CPU usage over 15 minutes.CPU load
Indicates the status of the fans in the fan tray. The possible values are OK, Failed, and Absent. This
field also indicates the direction of airflow of the fan tray. The possible values are Front to back and
Back to front.
EX6210 Switches
Memory util.
EX8208 Switches
Memory util.
EX8216 Switches
Indicates the memory used in the master Routing Engine. Click the backup Routing Engine to view
the memory used in the backup Routing Engine.
Indicates the average CPU usage over 15 minutes.CPU load
Indicates the usage and capacity of internal flash memory and any external USB flash drive.Flash
Indicates the status of the fans in the fan tray. The possible values are OK, Failed, and Absent.Fan status
Indicatesthememory used in the external Routing Engine. In an EX8200 Virtual Chassis, the memory
utilization value of the XRE200 External Routing Engine in the master role is displayed. Click the
XRE200 External Routing Engine in the backup role to view the memory used in the backup external
Routing Engine.
Indicates the average CPU usage over 15 minutes.CPU load
Indicates the usage and capacity of internal flash memory and any external USB flash drive.Flash
Indicatesthememory used in the external Routing Engine. In an EX8200 Virtual Chassis, the memory
utilization value of the XRE200 External Routing Engine in the master role is displayed. Click the
XRE200 External Routing Engine in the backup role to view the memory used in the backup external
Routing Engine.
Indicates the average CPU usage over 15 minutes.CPU load
Indicates the usage and capacity of internal flash memory and any external USB flash drive.Flash
XRE200 External Routing Engines
Memory util.
Indicatesthememory used in the external Routing Engine. In an EX8200 Virtual Chassis, the memory
utilization value of the XRE200 External Routing Engine in the master role is displayed. Click the
backup XRE200 External Routing Engine to view the memory used in backup external Routing Engine.
Indicates the average CPU usage over 15 minutes.CPU load
Indicates the usage and capacity of internal flash memory and any external USB flash drive.Flash
Indicates the status of the fans in the fan tray. The possible values are OK, Failed, and Absent.Fan Status
Capacity Utilization Panel
Table 18: Capacity Utilization
DescriptionField
Number of active ports
Total number of ports
Number of VLANs configured
Alarms Panel
Indicates the number of active ports in the switch. Configured
Virtual Chassis ports (VCPs) are considered as active ports.
Indicates the number of ports in the switch.
NOTE: In EX3300 and EX4600 Virtual Chassis, the total
number of ports of all of the switches is displayed.
Indicates the number of MAC table entries.Used-up MAC-Table entries
Indicatesthemaximum number of MAC table entries permitted.Supported MAC-Table entries
Indicates the number of VLANs configured.
NOTE: Only tagged VLANs are counted.
Indicates the maximum number of VLANs supported.Number of VLANs supported
Displaysinformation about the last five alarms raised in the system. For example, if there
are 5 major alarms, then details of all 5 major alarms are displayed. If there are 4 major
alarms and 3 minor alarms, then details of the 4 major alarms and 1 minor alarm are
displayed. Major alarms are displayed in red and minor alarms are displayed in yellow.
In an EX8200 Virtual Chassis, the top 5 alarms for the master external Routing Engine
are displayed by default. If you select an EX8200 member switch of the Virtual Chassis,
the top 5 alarms for that member switch are displayed.
File System Usage
To display the file system storage details of a switch in the backup or linecard role, click
the image of that switch.
Chassis Viewer
Click the Rear View button to see the back of the chassis image. Click the Front View
button to see the front of the chassis image. In a Virtual Chassis configuration, the Rear
View button is disabled if the switch is not selected.
•
Table 19 on page 38—Describes the chassis viewer for EX2200 switches.
•
Table 20 on page 39—Describes the chassis viewer for EX2200-C switches.
•
Table 21 on page 39—Describes the chassis viewer for EX3200, EX3300, and EX4200
switches.
•
Table 22 on page 41—Describes the chassis viewer for EX4300 switches.
•
Table 23 on page 42—Describes the chassis viewer for EX4500 switches.
•
Table 24 on page 43—Describes the chassis viewer for EX4550 switches.
•
Table 25 on page 45—Describes the chassis viewer for EX4600 switches.
•
Table 26 on page 45—Describes the chassis viewer for EX6210 switches.
•
Table 27 on page 46—Describes the chassis viewer for EX8208 switches.
•
Table 28 on page 48—Describes the chassis viewer for EX8216 switches.
•
Table 29 on page 48—Describes the chassis viewer for the XRE200 External Routing
Engines.
Table 19: Chassis Viewer for EX2200 Switches
DescriptionField
Front View
Interface status
In the image, the following colors denote the interface status:
•
Green—Interface is up and operational.
•
Yellow—Interface is up but is nonoperational.
•
Gray—Interface is down and nonoperational.
Mouse over the interface (port) to view more information.
Table 21: Chassis Viewer for EX3200, EX3300, and EX4200 Switches (continued)
DescriptionField
Interface status
In the image, the following colors denote the interface status:
•
Green—Interface is up and operational.
•
Yellow—Interface is up but is nonoperational.
•
Gray—Interface is down and nonoperational.
Mouse over the interface (port) to view more information.
For a Virtual Chassis configuration, select the switch to view the interface status.
If an SFP+ uplink module is installed in the switch, mouse over the port icon to display whether
the module is configured to operate in 1-gigabit mode or in 10-gigabit mode. If the module is
configured to operate in 1-gigabit mode, the tool tip information is displayed for all 4 ports. If the
module is configured to operate in 10-gigabit mode, the tool tip information is displayed only for
2 ports.
On an EX3300 switch with the 4x GE/XE SFP+ module, mouse over the port icon to display
whether the module is configured to operate in 1-gigabit mode or 10-gigabit mode.
For SFP, SFP+, and XFP ports, the interfaces appear dimmed if no transceiver is inserted. The
chassis viewer displays Transceiver not plugged-in when you mouse over the port icon.
LCD panel
LCD panel configured for the LEDs on the ports. Mouse over the icon to view the current character
display.
Rear View of the EX3200 Switch
Management (me0) port
The management port is used to connect the switch to a management device for out-of-band
management.
Console port
The console port is used to connect the switch to a management console or to a console server.
(You might do this for initial switch configuration.)
USB port
Indicates the USB port for the switch.
NOTE: We recommend that you use USB flash drives purchased from Juniper Networks for your
EX Series switch.
Mouse over the fan tray icon to display name, status, and description information.Fan tray
Mouse over the power supply icon to display name, status, and description information.Power supply
Rear View of the EX3300 and EX4200 Switch
Fan tray
Mouse over the fan tray icon to display name, status, and description information. For a Virtual
Chassis, the status of the fans of the selected member switch is displayed.
Virtual Chassis port
Displayed only when EX4200 switches are configured as a Virtual Chassis. The following colors
denote the Virtual Chassis port (VCP) status:
Table 22: Chassis Viewer for EX4300 Switches (continued)
DescriptionField
Console port
USB port
PIC 1 slot
The Console port (RJ-45) is used to connect the switch to a management console or to a console
server.
Indicates the USB port for the switch.
NOTE: We recommend that you use USB flash drives purchased from Juniper Networks for your
EX Series switch.
Mouse over the fan tray icons to display name, status, and description information.Fan tray
Mouse over the power supply icons to display name, status, and description information.Power supplies
The rear panel of a 24-port and a 48-port EX4300 switch has four (built-in) 40-Gigabit QSFP+
ports, and the rear panel of an EX4300-32F switch has two (built-in) 40-Gigabit QSFP+ ports, in
which you can install QSFP+ transceivers. Mouse over the ports to view the details of the ports.
After you install a transceiver in the port, the following colors denote the interface status:
•
Green—Interface is up and operational.
•
Yellow—Interface is up but is not operational.
•
Gray—Interface is down and not operational.
For QSFP+ ports, the interfaces appear dimmed if no transceiver is inserted. The chassis viewer
displays Transceiver not plugged in when you mouse over the port.
When a QSFP+ port is configured as a Virtual Chassis Port (VCP), the following colors denote the
VCP status:
•
Green—VCP is up and operational.
•
Yellow—VCP is up but is not operational.
•
Gray—VCP is down and not operational.
Table 23: Chassis Viewer for EX4500 Switches
DescriptionField
Front View
Interface status
In the image, the colors listed below denote the interface status:
•
Green—Interface is up and operational.
•
Yellow—Interface is up but is nonoperational.
•
Gray—Interface is down and nonoperational.
Mouse over the interface (port) to view more information.
For a Virtual Chassis configuration, select the switch to view the interface status.
If an SFP+ uplink module is installed in the switch, mouse over the interface (ports) on the
module for more information.
For SFP and SFP+ ports, the interfaces appear dimmed if no transceiver is inserted. The chassis
viewer displays Transceiver not plugged-in when you mouse over the port icon.
Table 23: Chassis Viewer for EX4500 Switches (continued)
DescriptionField
Chapter 5: Viewing System Information
LCD panel
Management (me0) port
USB port
LCDpanel configured for the LEDs on the ports. Mouse over the icon to view the current character
display.
The console port is used to connect the switch to a management console or to a console server.Console port
The management port is used to connect the switch to a management device for out-of-band
management. Use this port for initial switch configuration.
Indicates the USB port for the switch.
NOTE: We recommend that you use USB flash drives purchased from Juniper Networks for
your EX Series switch.
Rear View of the EX4500 Switch
Fan tray
Virtual Chassis port
Mouse over the fan tray icon to display status of the fans and airflow direction information. For
a Virtual Chassis, the status of the fans of the selected member switch is displayed.
Displayedonlywhen switches are configured as a Virtual Chassis. The colors listed below denote
the Virtual Chassis port (VCP) status:
•
Green—VCP is up and operational.
•
Yellow—VCP is up but is nonoperational.
•
Gray—VCP is down and nonoperational.
Mouse over the power supply icons to display name, status, and description information.Power supplies
Intraconnect module
Mouse over the module to display details of the intraconnect module. The intraconnect module
helps the switch achieve line rate on all its ports.
Mouse over to display details of the switches in the Virtual Chassis configuration.Virtual Chassis module
Table 24: Chassis Viewer for EX4550 Switches (continued)
DescriptionField
Interface status
LCD panel
Management (me0) port
PIC1 slot
In the image, the colors listed below denote the interface status:
•
Green—Interface is up and operational.
•
Yellow—Interface is up but is nonoperational.
•
Gray—Interface is down and nonoperational.
Mouse over the interface (port) to view more information.
For a Virtual Chassis configuration, select the switch to view the interface status.
If an expansion module or a Virtual Chassis module is installed in the switch, mouse over the
interface (ports) on the module for more information.
On an EX4550-32F switch, for SFP and SFP+ ports, the interfacesappear dimmed if no transceiver
is inserted. The chassis viewer displays Transceiver (1G/10G) not plugged in when you mouse over
the port icon.
LCD panel configured for the LEDs on the ports. Mouse over the icon to view the current character
display.
The console port is used to connect the switch to a management console or to a console server.Console port
The mini console port is used to connect the switch to the management console.Mini Console port
The management port is used to connect the switch to a management device for out-of-band
management. Use this port for initial switch configuration.
You can insert an uplink module or a Virtual Chassis module in the PIC1 slot. Mouse over to display
the details of the module inserted (uplink or Virtual Chassis).
USB port
Indicates the USB port for the switch.
NOTE: We recommend that you use USB flash drives purchased from Juniper Networks for your
EX Series switch.
Rear View of the EX4550 Switch
Fan tray
Mouse over the fan tray icon to display the status of the fans and airflow direction information.
For a Virtual Chassis, the status of the fans of the selected member switch is displayed.
Virtual Chassis port
Displayed only when switches are configured as a Virtual Chassis. In the image, the colors listed
below denote the Virtual Chassis port (VCP) status:
•
Green—VCP is up and operational.
•
Yellow—VCP is up but is nonoperational.
•
Gray—VCP is down and nonoperational.
Mouse over the power supply icons to display name, status, and description information.Power supplies
PIC2 slot
You can insert an uplink module or a Virtual Chassis module into the PIC2 slot. Mouse over to
display the details of the module inserted (uplink or Virtual Chassis).
Table 26: Chassis Viewer for EX6210 Switches (continued)
DescriptionField
Interface status
Select the CB or line card.
In the image, the colors listed below denote the interface status:
•
Green—Interface is up and operational.
•
Yellow—Interface is up but is nonoperational.
•
Gray—Interface is down and nonoperational.
Mouse over the interface (port) to view more information.
You can view status for the following ports on the SRE module:
•
USB port—Indicates the USB port for the switch.
NOTE: We recommend that you use USB flash drives purchased from Juniper Networks for your
EX Series switch.
•
Management (me0) port—The management port is used to connect the switch to a management
device for out-of-band management. There are 2 management ports: fiber and copper. The same
status is displayed for both the me0 ports.
•
Console port—The console port is used to connect the switch to a management console or to a
console server. (You might do this for initial switch configuration.)
CBs support 4 SFP+ uplink ports. Mouse over the interface on the CB for more information.
For SFP and SFP+ ports, the interfaces appear dimmed if no transceiver is inserted. The chassis viewer
displays Transceiver not plugged-in when you mouse over the port icon.
Mouse over the power supply icons to display name, status, and description information.Power supplies
LCD panel
LCD panel configured for the LEDs on the ports. Mouse over the icon to view the current character
displayof the master Routing Engine. The EX6210 switch has 2 LCDpanels, one for eachRouting Engine.
The backup Routing Engine LCD displays Backup.
Rear View of the EX6210 Switch
Mouse over the fan tray icon to display information regarding the cooling fans.Fan tray
Table 27: Chassis Viewer for EX8208 Switches (continued)
DescriptionField
Chapter 5: Viewing System Information
Interface status
Slot numbers
In the image, click any line card, SRE module, or SF module to view the front view of the selected
component. In the image, the colors listed below denote the interface status:
•
Green—Interface is up and operational.
•
Yellow—Interface is up but is nonoperational.
•
Gray—Interface is down and nonoperational.
Mouse over the interface (port) to view more information.
You can view status for the following ports on the SRE module:
•
USB port—Indicates the USB port for the switch.
NOTE: We recommend that you use USB flash drives purchased from Juniper Networks for your
EX Series switch.
•
Auxiliary port—This port is unavailable.
•
Management (me0) port—Themanagement port is used to connect the switch to a management
device for out-of-band management.
•
Console port—The console port is used to connect the switch to a management console or to a
console server. (You might do this for initial switch configuration.)
Because the SF module has no ports, no status information is displayed.
Slots on the switch are labeled, from the top of the switch down:
•
0–3 (line cards)
•
SRE0, SF, SRE1 (SRE and SF modules)
•
4–7 (line cards)
Temperature
LCD panel
Rear View
The active slots contain a gray temperature icon. Mouse over the icon to display temperature
information for the slot.
Mouse over the fan tray icon to display name, status, and description information.Fan status
Mouse over the power supply icons to display name, status, and description information.Power supplies
LCD panel configured for the LEDs on the ports. Mouse over the icon to view the current character
display.
The EX8208 switch does not have any components on the rear of the chassis.
In the image, click any line card or RE module to display the front view of the selected component.
In the image, the colors listed below denote the interface status:
•
Green—Interface is up and operational.
•
Yellow—Interface is up but is nonoperational.
•
Gray—Interface is down and nonoperational.
Mouse over the interface (port) to view more information.
You can view status for the following ports on the RE module:
•
USB port—Indicates the USB port for the switch.
NOTE: We recommend that you use USB flash drives purchased from Juniper Networks for your
EX Series switch.
•
Auxiliary port—This port is unavailable.
•
Management(me0) port—Themanagementport is used to connect the switch to a management
device for out-of-band management.
•
Console port—The console port is used to connect the switch to a management console or to a
console server. (You might do this for initial switch configuration.)
Slot numbers
Temperature
Slots on the switch are labeled, from the top of the switch down:
•
RE0 (RE module)
•
RE1 (RE module)
•
0–15 (line cards)
The active slots contain a gray temperature icon. Mouse over the icon to display temperature
information for the slot.
Mouse over the fan tray icon to display consolidated information about the fans.Fan status
Mouse over the power supply icons to display name, status, and description information.Power supplies
LCD panel
LCD panel configured for the LEDs on the ports. Mouse over the icon to view the current character
display.
Rear View
SF modules
Mouse over the SF module icons in their respective slots to display information. Slots are numbered
SF7–SF0, from left to right.
Table 29: Chassis Viewer for XRE200 External Routing Engines
Table 29: Chassis Viewer for XRE200 External Routing Engines (continued)
DescriptionField
Interface status
Management (me0) port
Virtual Chassis port
LCD panel
Temperature
In the image, the colors listed below denote the interface status:
•
Green—Interface is up and operational.
•
Yellow—Interface is up but is nonoperational.
•
Gray—Interface is down and nonoperational.
Mouse over the interface (port) to view more information.
For a Virtual Chassis configuration, select the switch to view the interface status.
The console port is used to connect the switch to a management console or to a console server.Console port
The management port is used to connect the switch to a management device for out-of-band
management. Use this port for initial switch configuration.
In the image, the colors listed below denote the Virtual Chassis port (VCP) status:
•
Green—VCP is up and operational.
•
Yellow—VCP is up but is nonoperational.
•
Gray—VCP is down and nonoperational.
Mouse over the interface (port) to view more information.
LCDpanel configured for the LEDs on the ports. Mouse over the icon to view the current character
display.
The active slots contain a gray temperature icon. Mouse over the icon to display temperature
information for the slot.
USB port
Indicates the USB port for the switch.
NOTE: We recommend that you use USB flash drives purchased from Juniper Networks for
your EX Series switch.
PIC1 slot
You can install a Virtual Chassis module in the PIC1 slot. Mouse over the Virtual Chassis ports
to display the port status details.
PIC2 slot
You can install a Virtual Chassis module in the PIC2 slot. Mouse over the Virtual Chassis ports
to display the port status details.
Rear View of the XRE200 External Routing Engine
Fan modules
Mouse over the fan modules to display status of the fans and airflow direction information. For
a Virtual Chassis, the status of the fans of the selected member switch is displayed.
Mouse over the power supply icons to display name, status, and description information.Power supplies
Environmental Requirements and Specifications for EX Series Switches
The switch must be installed in a rack or cabinet housed in a dry, clean, well-ventilated,
and temperature-controlled environment.
Ensure that these environmental guidelines are followed:
•
The site must be as dust-free as possible, because dust can clog air intake vents and
filters, reducing the efficiency of the switch cooling system.
•
Maintain ambient airflow for normal switch operation. If the airflow is blocked or
restricted, or if the intake air is too warm, the switch might overheat, leading to the
switch temperature monitor shutting down the switch to protect the hardware
components.
Table 31 on page 55 provides the required environmental conditions for normal switch
operation.
Table 31: EX Series Switch Environmental Tolerances
Environment Tolerance
Switch or
deviceSeismicTemperatureRelative HumidityAltitude
EX2200-C
EX2200
(except
EX2200-C
switches)
EX2300-C
No performance
degradation up to
5,000 feet
(1524 meters)
No performance
degradation up to
10,000 feet
(3048 meters)
No performance
degradation up to
5,000 feet
(1524 meters)
Normal operation ensured
in the relative humidity
range 10% through 85%
(noncondensing)
Normal operation ensured
in the relative humidity
range 10% through 85%
(noncondensing)
Normal operation ensured
in the relative humidity
range 10% through 85%
(noncondensing)
Normal operation ensured in
the temperature range 32 °F
(0 °C) through 104 °F (40 °C)
at altitudes up to 5,000 ft
(1,524 m).
For information about
extended temperature SFP
transceivers supported on
EX2200 switches, see
Pluggable Transceivers
Supported on EX2200
Switches.
Normal operation ensured in
the temperature range 32 °F
(0 °C) through 113 °F (45 °C)
Normal operation ensured in
the temperature range 32 °F
(0 °C) through 104 °F (40 °C)
Complieswith Zone 4
earthquake
requirements as per
GR-63, Issue 4.
Complieswith Zone 4
earthquake
requirements as per
GR-63, Issue 4.
Complieswith Zone 4
earthquake
requirements as per
GR-63, Issue 4.
EX2300
(except
EX2300-C
switches)
No performance
degradation up to
13,000 feet
(3048 meters) at
104 °F (40 °C) as
per GR-63
Normal operation ensured
in the relative humidity
range 10% through 85%
(noncondensing)
Normal operation ensured in
the temperature range 32 °F
(0 °C) through 113 °F (45 °C)
Complieswith Zone 4
earthquake
requirements as per
GR-63, Issue 4.
• Clearance Requirements for Airflow and Hardware Maintenance for an EX6210 Switch
• Clearance Requirements for Airflow and Hardware Maintenance for an EX8208 Switch
• Clearance Requirements for Airflow and Hardware Maintenance for an EX8216 Switch
• Clearance Requirements for Airflow and Hardware Maintenance for an EX9204 Switch
• Clearance Requirements for Airflow and Hardware Maintenance for an EX9208 Switch
• Clearance Requirements for Airflow and Hardware Maintenance for an EX9214 Switch
General Site Guidelines
Efficient device operation requires proper site planning and maintenance and proper
layout of the equipment, rack or cabinet (if used), and wiring closet.
To plan and create an acceptable operating environment for your device and prevent
environmentally caused equipment failures:
•
Keep the area around the chassis free from dust and conductive material, such as
metal flakes.
Chapter 6: Preparation Overview
•
Followprescribed airflow guidelines to ensure that the cooling system functions properly
and that exhaust from other equipment does not blow into the intake vents of the
device.
•
Follow the prescribed electrostatic discharge (ESD) prevention procedures to prevent
damaging the equipment. Static discharge can cause components to fail completely
or intermittently over time.
•
Install the device in a secure area, so that only authorized personnel can access the
device.
Related
Prevention of Electrostatic Discharge Damage on page 243•
Documentation
Site Electrical Wiring Guidelines
Table32 on page 60 describes the factors you must consider while planning the electrical
wiring at your site.
WARNING: It is particularly important to provide a properly grounded and
shielded environment and to use electrical surge-suppression devices.
If your site experiences any of the following problems, consult experts in electrical surge
suppression and shielding:
•
Improperly installed wires cause radio frequency interference (RFI).
•
Damage from lightning strikes occurs when wires exceed recommended distances or pass
between buildings.
•
Electromagnetic pulses (EMPs) caused by lightning damage unshielded conductors and
electronic devices.
To reduce or eliminate RFI from your site wiring, do the following:
•
Use a twisted-pair cable with a good distribution of grounding conductors.
•
If you must exceed the recommended distances, use a high-quality twisted-pair cable with
one ground conductor for each data signal when applicable.
If your site is susceptibleto problems with electromagneticcompatibility(EMC), particularly from
lightning or radio transmitters, seek expert advice.
Some of the problems caused by strong sources of electromagnetic interference (EMI) are:
•
Destruction of the signal drivers and receivers in the device
•
Electrical hazards as a result of power surges conducted over the lines into the equipment
General Safety Guidelines and Warnings on page 213•
• General Electrical Safety Guidelines and Warnings on page 241
• Prevention of Electrostatic Discharge Damage on page 243
Chassis Physical Specifications for EX2300 Switches
The EX2300 switch chassis is a rigid sheet-metal structure that houses the hardware
components. Table 5 on page 15 summarizes the physical specifications of the EX2300
switch chassis.
Table 33: Physical Specifications of the EX2300 Switch Chassis
EX2300 ValueEX2300-C ValueDescription
•
1.72 in. (4.36 cm)Chassis height
All models except EX2300-24MP and
EX2300-48MP—1.75 in.(4.45 cm)
•
EX2300-24MP and EX2300-48MP
models—1.7 in. (4.33 cm)
Table 34 on page 62 provides the rack requirements and specifications.
Table 34: Rack Requirements and Specifications
GuidelinesRack Requirement
Rack type
Mounting bracket hole spacing
Rack size and strength
Rack connection to building structure
Related
Rack-Mounting and Cabinet-Mounting Warnings on page 224•
Documentation
You can mount the device on a rack that provides bracket holes or hole patterns spaced
at 1 U (1.75 in. or 4.45 cm) increments and meets the size and strength requirements to
support the weight.
A U is the standard rack unit defined by the Electronics Industry Association.
The holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm), so that the
device can be mounted in any rack that provides holes spaced at that distance.
•
Ensure that the rack complies with the size and strength standards of a 19-in. rack as
defined by the Electronics Industry Association.
•
Ensure that the rack rails are spaced widely enough to accommodate the external
dimensions of the device chassis. The outer edges of the front-mounting brackets
extend the width of the chassis to 19 in. (48.2 cm).
•
The rack must be strong enough to support the weight of the device.
•
Ensure that the spacing of rails and adjacent racks provides for proper clearance
around the device and rack.
•
Secure the rack to the building structure.
•
If earthquakes are a possibility in your geographical area, secure the rack to the floor.
•
Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum
stability.
Requirements for Mounting an EX2300 Switch On or Under a Desk or Other Level
Surface or On a Wall
You can mount the switch on a desk or other levelsurface. Youcan mount the EX2300-C
switch under a desk or other level surface. You can mount EX2300 switches except the
EX2300-24MP and EX2300-48MP models on a wall. When choosing a location, allow
at least6 in. (15.2 cm) of clearancebetweenthe front and back of the chassis and adjacent
equipment or walls.
Ensure that the wall onto which the switch is installed is stable and securely supported.
If you are mounting the switch in sheetrock (wall board with a gypsum plaster core) or
in wall board not backed by wall studs, use hollow wall anchors capable of supporting
the combined weight of two fully loaded chassis. Insert the screws into wall studs
wherever possible to provide added support for the chassis.
Use the wall-mount kit from Juniper Networks to mount the switch on a wall. The
wall-mount kit is not part of the standard package and must be ordered separately.
Related
Documentation
Clearance Requirements for Airflow and Hardware Maintenance for EX2300 Switches
•
on page 64
• Mounting an EX2300 Switch on a Desk or Other Level Surface on page 105
• Mounting an EX2300-C Switch Under a Desk or Other Level Surface by Using Screws
on page 107
• Mounting an EX2300 Switch on a Wall on page 118
Cabinet Requirements
You can mount the device in a cabinet that contains a 19-in. rack.
Cabinet requirements consist of:
•
Cabinet size
•
Clearance requirements
•
Cabinet airflow requirements
Table 35 on page 63 provides the cabinet requirements and specifications.
Table 35: Cabinet Requirements and Specifications
GuidelinesCabinet Requirement
Cabinet size
Cabinet clearance
Cabinet airflow
requirements
•
You can mount the device in a cabinet that contains a 19-in. rack as defined by the Electronics
Industry Association.
•
The minimum cabinet size must be able to accommodate the maximum external dimensions of
the device.
•
The outer edges of the mounting brackets extend the width of the chassis to 19 in. (48.2 cm).
•
The minimum total clearance inside the cabinet is 30 in. (76.2 cm) between the inside of the front
door and the inside of the rear door.
When you mount the device in a cabinet, ensure that ventilation through the cabinet is sufficient to
prevent overheating.
•
Ensure adequate cool air supply to dissipate the thermal output of the device or devices.
•
Ensure that the hot air exhaustof the chassis exits the cabinet without recirculating into the device.
An open cabinet (without a top or doors) that employs hot air exhaust extraction from the top
ensures the best airflow through the chassis. If the cabinet contains a top or doors, perforations
in these elements assist with removing the hot air exhaust.
•
Install the device in the cabinet in a way that maximizes the open space on the side of the chassis
that has the hot air exhaust.
•
Route and dress all cables to minimize the blockage of airflow to and from the chassis.
•
Ensure that the spacing of rails and adjacent cabinets is such that there is proper clearance around
the device and cabinet.
•
A cabinet larger than the minimum required provides better airflow and reduces the chance of
overheating.
Rack-Mounting and Cabinet-Mounting Warnings on page 224•
Clearance Requirements for Airflow and Hardware Maintenance for EX2300 Switches
When planning the site for installing an EX2300 switch, you must allow sufficient
clearance around the installed switch. Figure 24 on page 64 shows the clearance
requirementsfor the EX2300-C switch models. Figure 25 on page 65 shows the clearance
requirements for EX2300 switches, except the EX2300-C switch model, with PoE
capability. The depth of EX2300 switches, except the EX2300-C switch model, without
PoE capability is 10 in. (25.4 cm).
Figure 24: ClearanceRequirementsfor Airflow and Hardware Maintenance
for EX2300-C Switches
Figure 25: ClearanceRequirementsfor Airflow and HardwareMaintenance
for EX2300 Switches Except EX2200-C Switches
The power cord retainer clips in EX2300 switches except the EX2300-24MP model and
the EX2300-48MP model extend out of the rear of the chassis by 3 in. (7.6 cm).
•
Allow at least 6 in. (15.2 cm) of clearance on the side between devices that have fans
installed. Allow 2.8 in. (7 cm) between the side of the chassis and any
non-heat-producingsurfacesuch as a wall. For the cooling system to function properly,
the airflow around the chassis must be unrestricted.
Figure 26 on page 66 shows the airflow in EX2300 switches with 24 ports with PoE
capability. Figure 27 on page 66 shows the airflow in EX2300 switches with 48 ports
with PoE capability.Figure28 on page 67 showsthe airflowin EX2300 switches without
PoE capability.
Figure 28: Airflow Direction in EX2300 Switches without PoE Capability
Related
Documentation
•
If you are mounting an EX2300 switch in a rack or cabinet with other equipment, or if
you are placing it on or under a desk or floor near other equipment, ensure that the
exhaust from other equipment does not blow into the intake vents of the chassis.
NOTE: You can mount only EX2300-C switches under a desk or other level
surface.
•
Leave at least24 in. (61 cm) in front of the switch and 6 in. (15.2 cm) behind the switch.
For service personnel to remove and install hardware components, you must leave
adequate space at the front and back of the switch. NEBS GR-63 recommends that
you allow at least 30 in. (76.2 cm) in front of the rack or cabinet and 24 in. (61 cm)
behind the rack or cabinet.
• Rack Requirements on page 61
• Cabinet Requirements on page 63
• General Site Guidelines on page 59
• Rack-Mounting and Cabinet-Mounting Warnings on page 224
• Cooling System and Airflow in an EX2300 Switch on page 25
Table 37: DC Power Supply Electrical Specifications for EX2300 Switches (Except EX2300-C,
EX2300-24MP, and EX2300-48MP Switches)
SpecificationItem
–48 through –60 VDCDC input voltage
2.8 A maximumDC input current
100 WPower supply output
5 ms minimumOutput holdup time
NOTE: For DC power supplies, we recommend that you provide at least 2.8 A
at 48 VDC and use a facility circuit breaker rated for 10 A minimum. Doing so
enables you to operate the switch in any configuration without upgrading
the power infrastructure, and enables the switch to function at full capacity
using multiple power supplies.
Related
Documentation
AC Power Cord Specifications for EX2300 Switches on page 70•
• Power Supply in EX2300 Switches on page 29
• General Safety Guidelines and Warnings on page 213
• General Electrical Safety Guidelines and Warnings on page 241
AC Power Cord Specifications for EX2300 Switches
A detachable AC power cord is supplied with the AC power supplies. The coupler is type
C13 as described by International Electrotechnical Commission (IEC) standard 60320.
The plug at the male end of the power cord fits into the power source outlet that is
standard for your geographical location.
CAUTION: The AC power cord provided with each power supply is intended
for use with that power supply only and not for any other use.
NOTE: In North America, AC power cords must not exceed 4.5 meters in
length,to comply with National ElectricalCode(NEC) Sections400-8 (NFPA
75, 5-2.2) and 210-52 and Canadian Electrical Code (CEC) Section 4-010(3).
The cords supplied with the switch are in compliance.
Table 38 on page 71 gives the AC power cord specifications for the countries and regions
• Prevention of Electrostatic Discharge Damage on page 243
Calculating the EX Series Switch Fiber-Optic Cable Power Budget
Calculate the link's power budget when planning fiber-optic cable layout and distances
to ensure that fiber-optic connections have sufficient power for correct operation. The
powerbudget is the maximum amount of power the link can transmit. When you calculate
the power budget, you use a worst-caseanalysis to providea margin of error,even though
all the parts of an actual system do not operate at the worst-case levels.
To calculate the worst-case estimate for fiber-optic cable power budget (PB) for the
link:
1. Determinevalues for the link's minimum transmitterpower (P
sensitivity (PR). For example, here, (PT) and (PR) are measured in decibels, and
decibels are referred to one milliwatt (dBm).
PT= –15 dBm
PR= –28 dBm
NOTE: See the specifications for your transmitter and receiver to find the
minimum transmitter power and minimum receiver sensitivity.
2. Calculate the power budget (P
) by subtracting (PR) from (PT):
B
–15 dBm – (–28 dBm) = 13 dBm
Related
Documentation
Calculating the EX Series Switch Fiber-Optic Cable Power Margin on page 72•
• Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and
Dispersion on page 83
• Pluggable Transceivers Supported on EX Series Switches on page 76
Calculating the EX Series Switch Fiber-Optic Cable Power Margin
) and minimum receiver
T
Calculate the link's power margin when planning fiber-optic cable layout and distances
to ensure that fiber-optic connections have sufficient signal power to overcome system
losses and still satisfy the minimum input requirements of the receiver for the required
performance level. The power margin (PM) is the amount of power available after
attenuation or link loss (LL) has been subtracted from the power budget (PB).
When you calculate the power margin, you use a worst-case analysis to provide a margin
of error, even though all the parts of an actual system do not operate at worst-case
levels.A power margin (PM) greater than zero indicates that the power budget is sufficient
to operate the receiver and that it does not exceed the maximum receiver input power.
This means the link will work. A (PM) that is zero or negative indicates insufficient power
to operate the receiver. See the specification for your receiver to find the maximum
receiver input power.
Before you begin to calculate the power margin:
•
Calculate the power budget. See “Calculating the EX Series Switch Fiber-Optic Cable
Power Budget” on page 72.
To calculate the worst-case estimate for the power margin (PM) for the link:
1. Determine the maximum value for link loss (LL) by adding estimated values for
applicable link-loss factors—for example, use the sample values for various factors
as provided in Table 39 on page 73 (here, the link is 2 km long and multimode, and
the (PB) is 13 dBm):
Table 39: Estimated Values for Factors Causing Link Loss
The calculatedpowermargin is greater than zero, indicating that the link has sufficient
power for transmission. Also, the power margin value does not exceed the maximum
receiver input power. Refer to the specification for your receiver to find the maximum
receiver input power.
• Calculating the EX Series Switch Fiber-Optic Cable Power Budget on page 72
• Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and
Dispersion on page 83
• Pluggable Transceivers Supported on EX Series Switches on page 76
Pluggable Transceivers Supported on EX2300 Switches on page 75
•
Pluggable Transceivers Supported on EX Series Switches on page 76
•
SFP+ Direct Attach Copper Cables for EX Series Switches on page 80
•
Management Cable Specifications on page 82
•
Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and
Dispersion on page 83
Pluggable Transceivers Supported on EX2300 Switches
Uplink ports on the front panel in EX2300 switches support SFP and SFP+ transceivers.
You can find the list of transceivers supported on EX2300 switches and information
about those transceivers at the Hardware Compatibility Tool page for EX2300.
NOTE: We recommend that you use only optical transceivers and optical
connectors purchased from Juniper Networks with your Juniper Networks
device.
CAUTION: If you face a problem running a Juniper Networks device that uses
a third-party optic or cable, the Juniper NetworksTechnicalAssistance Center
(JTAC)can help you diagnose the source of the problem. Your JTACengineer
might recommend that you check the third-party optic or cableand potentially
replaceit with an equivalent Juniper Networksoptic or cable that is qualified
for the device.
NOTE: EX2300-C switches ensurenormal operationin the temperaturerange
32° F (0° C) through 104° F (40° C) at altitudes up to 5,000 ft (1,524 m).
In the temperature range 104° F (40° C) through 113° F (45° C) at altitudes
up to 5,000 ft (1,524 m), use extended temperature range SFP transceivers.
The Gigabit Ethernet SFP and SFP+ transceivers installed in EX2300 switches support
digital optical monitoring (DOM): Youcanview the diagnostic details for these transceivers
by issuing the operational mode CLI command show interfaces diagnostics optics.
NOTE: The transceiverssupport DOM even if they areinstalled in uplink ports
configured as Virtual Chassis ports.
Related
Documentation
EX2300 Switches Hardware Overview on page 3•
• Installing a Transceiver on page 175
• Removing a Transceiver on page 177
Pluggable Transceivers Supported on EX Series Switches
The transceivers for EX Series switches are hot-removable and hot-insertable
field-replaceable units (FRUs): You can remove and replace them without powering off
the switch or disrupting switch functions.
NOTE: After you insert a transceiver or after you change the media-type
configuration, wait for 6 seconds for the interface to display the operational
commands.
NOTE: We recommend that you use only optical transceivers and optical
connectors purchased from Juniper Networks with your Juniper Networks
device.
CAUTION: If you face a problem running a Juniper Networks device that uses
a third-party optic or cable, the Juniper NetworksTechnicalAssistance Center
(JTAC)can help you diagnose the source of the problem. Your JTACengineer
might recommend that you check the third-party optic or cableand potentially
replaceit with an equivalent Juniper Networksoptic or cable that is qualified
for the device.
EX2200—Uplink ports and dual-purpose uplink ports on the front panel in EX2200
switches support SFP transceivers. You can find the list of transceivers supported on
EX2200 switches and information about those transceivers at the Hardware
Compatibility Tool page for EX2200.
NOTE: EX2200-C switches ensure normal operation in the temperature
range 30° F (0° C) through 104° F (40° C) at altitudes up to 5,000 ft
(1,524 m).
In the following conditions, use extended temperature range SFP
transceivers when fiber uplinks are used:
•
In the temperature range 104° F (40° C) through 113° F (45° C) at
altitudes up to 5,000 ft (1,524 m)
•
In the temperaturerange95° F (35° C) through 113° F (45°C) at altitudes
above 5,000 ft (1,524 m) up to 10,000 ft (3,048 m)
•
EX2300—Uplink ports on the front panel in EX2300 switches support SFP and SFP+
transceivers. You can find the list of transceivers supported on EX2300 switches and
information about those transceivers at the Hardware Compatibility Tool page for
EX2300.
NOTE: EX2300-C switches ensure normal operation in the temperature
range 32° F (0° C) through 104° F (40° C) at altitudes up to 5,000 ft
(1,524 m).
In the temperature range 104° F (40° C) through 113° F (45° C) at altitudes
up to 5,000 ft (1,524 m), use extendedtemperaturerangeSFP transceivers.
The Gigabit Ethernet SFP and SFP+ transceiversinstalled in EX2300 switches support
digital optical monitoring (DOM): You can view the diagnostic details for these
transceivers by issuing the operationalmode CLI command show interfaces diagnostics
optics.
NOTE: The transceivers support DOM even if they are installed in uplink
ports configured as Virtual Chassis ports.
•
EX3200—Optional uplink modules for EX3200 switches support SFP, SFP+, or XFP
transceivers. You can find the list of transceivers supported on EX3200 switches and
information about those transceivers at the Hardware Compatibility Tool page for
EX3200.
The Gigabit Ethernet SFP, SFP+, or XFP transceivers installed in EX3200 switches
support digital optical monitoring (DOM): Youcan view the diagnostic details for these
transceivers by issuing the operationalmode CLI command show interfaces diagnostics
optics.
•
EX3300—Uplink ports on the front panel in EX3300 switches support SFP and SFP+
transceivers. You can find the list of transceivers supported on EX3300 switches and
information about those transceivers at the Hardware Compatibility Tool page for
EX3300.
The Gigabit Ethernet SFP and SFP+ transceiversinstalled in EX3300 switches support
digital optical monitoring (DOM): you can view the diagnostic details for these
transceivers by issuing the operationalmode CLI command show interfaces diagnostics
optics.
NOTE: The transceivers support DOM even if they are installed in uplink
ports configured as Virtual Chassis ports.
•
EX3400—Uplink ports on EX3400 switches support SFP,SFP+,and QSFP+ transceivers.
You can find the list of transceivers supported on EX3400 switches and information
about those transceivers at the Hardware Compatibility Tool page for EX3400.
The Gigabit Ethernet SFP, SFP+, and QSFP+ transceivers installed in EX3400 switches
support digital optical monitoring (DOM): Youcan view the diagnostic details for these
transceivers by issuing the operationalmode CLI command show interfaces diagnostics
optics.
NOTE: The transceivers support DOM even if they are installed in uplink
ports configured as Virtual Chassis ports.
•
EX4200—Optional uplink modules for EX4200 switches support SFP, SFP+, or XFP
transceivers. You can find the list of transceivers supported on EX4200 switches and
information about those transceivers at the Hardware Compatibility Tool page for
EX4200.
The Gigabit Ethernet SFP, SFP+, or XFP transceivers installed in EX4200 switches
support digital optical monitoring (DOM): Youcan view the diagnostic details for these
transceivers by issuing the operationalmode CLI command show interfaces diagnostics
optics.
NOTE: The transceivers support DOM even if they are installed in uplink
module ports configured as Virtual Chassis ports.
•
EX4300—Optional uplink modules for EX4300 switches support SFP, SFP+, and
QSFP+ transceivers.Youcan find the list of transceiverssupported on EX4300 switches
and information about those transceivers at the Hardware Compatibility Tool page for
EX4300.
The Gigabit Ethernet SFP, SFP+, and QSFP+ transceivers installed in EX4300 switches
support digital optical monitoring (DOM): Youcan view the diagnostic details for these
transceivers by issuing the operationalmode CLI command show interfaces diagnostics