Meaning (M40e and M160 routers) The Front Panel System LEDs show the Routing Engine Host
0 and Host 1 LED state. The state can be OK, Fail, or Master. An asterisk (*) indicates the
operating state.
Look at the LEDs on the craft interface.
The host module LEDs are located on the upper right corner of the craft interface. Two
sets of LEDs indicate the host module status: the set labeled HOST0 reports the status
of the Routing Engine in slot RE0 and the MCS in slot MCS0, while the set labeled HOST1
reports the status of the Routing Engine in slot RE1 and the MCS in slot MCS1. Each set
includes three LEDs: MASTER (green), ONLINE (green), and OFFLINE (red).
Figure 241 on page 438 shows the M40e and M160 router craft interface LEDs.
Figure 241: M40e and M160 Router Host Module LEDs on the Craft Interface
Table 113 on page 438 describes the M40e and M160 router host module LED states.
Table 113: M40e and M160 Router Host Module LEDs
DescriptionStateColorLabel
Host module is functioning as master.On steadilyGreenMASTER
Host module components (Routing Engine and MCS)
are installed and functioning normally.
On steadilyGreenONLINE
Host module is starting up.Blinking
One or both host module components are not
installed or have failed.
On steadilyRedOFFLINE
Related
Documentation
Host Module Overview on page 435•
Check the Routing Engine Status
Purpose This section provides a brief description of monitoring the Routing Engines as part of the
host module on M40e and M160 routers.
Action To check the Routing Engine status, use the following command:
Copyright © 2012, Juniper Networks, Inc.438
M Series and T Series Routers Monitoring and Troubleshooting Guide
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