Troubleshooting The Mx2020 Host Subsystems - Juniper MX2020 Hardware Manual
3d universal edge router
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Also See for MX2020:
- Hardware manual (630 pages) ,
- Hardware manual (800 pages) ,
- Quick start manual (72 pages)
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MX2020 3D Universal Edge Router Hardware Guide
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Troubleshooting the MX2020 Host Subsystems
Problem
Solution
196
SFB LEDs—One LED, labeled
the SFB. If no LEDs are lit, the master CB-RE might still be booting or the SFB is not
receiving power.
Control Board and Routing Engine (CB-RE) LEDs—For the Control Board portion of the
CB-RE, there is one bicolor LED, labeled
and
. For the Routing Engine portion of the CB-RE, there are three LEDs, labeled
UTI
,
, and
ONLINE
MASTER
OK/FAIL
the CB-RE.
NOTE:
UTI isn't supported.
NOTE:
Even though the Control Board and Routing Engine (CB-RE) are
combined into one unit; the LED functionality is separate for the Control
Board and Routing Engine.
AC Delta or Wye PDM LEDs—One LED for each input terminal block indicating the input
feed status.
DC PDM LEDs—One LED on each PDM next to each of the nine –48VDC power feeds
indicates the status of that PDM incoming power.
AC or DC PSM LEDs—Four LEDs, labeled
supply module faceplate indicates the status of that power supply module.
MX2020 Craft Interface Description on page 33
Troubleshooting the MX2020 Cooling System on page 197
Troubleshooting the MX2020 MPCs on page 198
Troubleshooting the MX2020 MICs on page 201
Troubleshooting the MX2020 Power Subsystem on page 202
The following alarms and LEDs indicate a problem with a host subsystem Control Board
and Routing Engine (CB-RE):
A red alarm indicates that the host subsystem has been removed.
The red host subsystem
The green host subsystem
To troubleshooting the host subsystems:
Check the LEDs on the faceplate of each CB-RE.
1.
Check the LEDs on the craft interface.
2.
, on each SFB faceplate indicate the status of
OK/FAIL
OK/FAIL
,
LINK
. These LEDs on the faceplate indicate the status of
PWR OK
,
FAULT
OFFLINE
LED on the craft interface is lit.
LED on the craft interface is not lit.
ONLINE
,
ExtClk-0
,
ExtClk-1
,
BITS
,
INP0
, and
INP1
on each power
Copyright © 2013, Juniper Networks, Inc.
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