Verify Routing Engine Failure - Juniper M Series Monitoring And Troubleshooting Manual

Meaning
Related
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Verify Routing Engine Failure

Purpose
Action
Copyright © 2012, Juniper Networks, Inc.
Yellow . .
Green * .
Blue * .
SCG LEDs:
SCG 0 1
--------------
Yellow . .
Green * *
Blue * .
SIB LEDs:
SIB 0 1 2 3
--------------------------
Red . . . . .
Green * * * * *
The M10i router craft interface command output displays the LED status of the master
Routing Engine, indicating whether the
that the backup Routing Engine is active.
The M20 router craft interface command output displays the LED status of the master
Routing Engine, indicating whether the
The M40e and M160 router craft interface command output also displays the LED status
of both the master and backup host modules that include the master and backup Routing
Engines. By default, the master host module (
and ; the backup host module (
RE0 MCS0
and .
MCS1
The router craft interface command output for T640 and T1600 routers indicates that
is the master Routing Engine, and that it is active. The status under the backup
RE0
Routing Engine ( ) has no indicators.
RE1
Routing Engine Redundancy on page 176
NOTE: Routing Engine failures can include CompactFlash card failure and
hard disk failure. If the Routing Engine has a CompactFlash card failure and
hard disk failure at the same time, you will not be able to boot up the Routing
Engine.
The following example shows boot messages that occur when a Routing Engine remains
in a constant boot loop. In this condition, contact JTAC for further analysis and assistance.
Trying to boot from PCMCIA Flash Card ...
Trying to boot from Compact Flash ...
Trying to boot from Ethernet ...
In this condition, contact JTAC for further analysis and assistance.
4
and LEDs are
OK Fail
and LEDs are
OK Fail
Host 0
) has components installed in slots
Host 1
Chapter 6: Monitoring the Routing Engine
or . It also displays
on off
or .
on off
) has components installed in slots
RE1
195