Juniper Networks, the Juniper Networks logo, JUNOS, NetScreen, ScreenOS, and Steel-Belted Radius are registered trademarks of Juniper Networks, Inc. in the United States and other countries. JUNOSe is a trademark of Juniper Networks,
Inc. All other trademarks, service marks, registered trademarks, 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. Products made or sold by Juniper Networks or components thereof might be covered by one or more of the following patents that are owned
by or licensed to Juniper Networks: U.S. Patent Nos. 5,473,599, 5,905,725, 5,909,440, 6,192,051, 6,333,650, 6,359,479, 6,406,312, 6,429,706, 6,459,579, 6,493,347, 6,538,518, 6,538,899, 6,552,918, 6,567,902, 6,578,186, and
6,590,785. Copyright © 2009, Juniper Networks, Inc. All rights reserved. Printed in USA. Part Number: 530-029708-01, Revision 02, 31 March 2009.
3.
At the
Password
prompt, type the default switch password
admin
and press Enter.
4.
At the prompt that appears, type
enable
and press Enter.
5.
Type
configure terminal
and press Enter.
6.
Configure the management port with an IP address, subnet mask, and gateway. For
example:
ex2500(config)#
interface ip-mgmt address 10.10.10.2
ex2500(config)#
interface ip-mgmt netmask 255.255.255.0
ex2500(config)#
interface ip-mgmt enable
ex2500(config)#
interface ip-mgmt gateway 10.10.10.1
ex2500(config)#
interface ip-mgmt gateway enable
ex2500(config)#
exit
You can now connect to the management (MGMT) port over a network and use Telnet
from an external management station to access and control the switch through the
EX2500 command-line interface (CLI). For instructions, see the
EX2500 Ethernet Switch
Configuration Guide
.
For EX2500 documentation, go to
http://www.juniper.net/techpubs/
, select the EX Series
link, and then select
EX2500 Switch
.
Part 4: Basic Troubleshooting
System LEDs do not light
Symptom:
The SYS and FAN LEDs do not light.
Solution:
Verify that the power cord or cords are properly connected to the power plug or
plugs. Verify that AC power is available from the power source.
Temperature sensor warning
Symptom:
A temperature warning is displayed on the management console.
Solution:
1.
Verify that the air circulation vents on the front and back of the switch are free from
obstruction by cables, panels, rack frames, and other materials.
2.
Make sure all cooling fans inside the switch are running. The FAN LED blinks to
indicate a failure of one or more fans.
3.
Use the
show sys-info
command to display fan status. If any fan stops during switch
operation, contact Juniper Networks technical support.
4.
If necessary, cool the room to a lower temperature or provide a fan for greater air
circulation.
Switch does not initialize (boot)
Symptom:
All switch LEDs stay lit, and no command prompt appears on the console.
Solution:
The operating system might have been damaged. Use the console port to
perform a serial upgrade of the software. For instructions, see the
EX2500 Ethernet Switch
Command Referenc
e.
Safety Warnings Summary
NOTE:
This is a summary of safety warnings. For a complete list of warnings, including
translations, see the
EX2500 Ethernet Switch Hardware Guide
. For EX2500 documentation,
go to
http://www.juniper.net/techpubs/
, select the EX Series link, and then select
EX2500
Switch
.
WARNING:
Failure to observe these safety warnings can result in serious physical injury.
To reduce the risk of electric shock, use only power cords that have a grounding path,
and always connect the power cord to a properly grounded power outlet.
Electrical current from power, telephone, and communication cables is hazardous. To
prevent a shock hazard:
Do not connect or disconnect any cables or work on the switch during an
electrical storm.
Before working on equipment connected to power lines, remove jewelry (rings,
necklaces, and watches). Metal objects heat up when connected to power and
ground and can cause serious burns or become welded to the terminals.
Connect all power cords—for the switch and any attached equipment—to a
properly wired and grounded electrical outlet.
When possible use one hand only to connect or disconnect cables.
Never turn on any equipment that has evidence of fire, water, or structural
damage.
Disconnect the power cords before installing, uninstalling, or moving the switch.
Both power cords must be disconnected to ensure the removal of hazardous
energy.
The EX2500 switch does not have a power switch. When you connect one of the two
power cords to an energized AC power outlet, the switch powers on immediately. You
must disconnect the power cords to power off the switch. Always connect each power
cord to a universal grounded power source in a quickly and safely accessible location.
Do not stack other devices on top of the switch in a rack. The mounting brackets
cannot support multiple devices. Use mounting brackets to secure each device to the
rack.
Optical SFP+ transceivers are Class 1 laser products. To prevent eye injury, do not
look directly into a fiber-optic transceiver or into the ends of fiber-optic cables. Do not
leave a fiber-optic transceiver uncovered—keep the safety cap on—except when
inserting or removing cables. Always inspect and clean the LC connector end faces
before making any connections.
Contacting Juniper Networks
For technical support, see
http://www.juniper.net/support/requesting-support.html
.
