Troubleshooting An M120 Feb When A Chassis Alarm Is Lit Upon Initial Startup Or Removal; Troubleshooting The M120 Power System - Juniper Networks Hardware Manual

M120 Multiservice Edge Router Hardware Guide
Related
Documentation
Troubleshooting an M120 FEB When a Chassis Alarm Is Lit Upon Initial Startup or
Removal
Problem
Solution
Related
Documentation

Troubleshooting the M120 Power System

Problem
124
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M120 Forwarding Engine Boards (FEBs) Description on page 16
Maintaining the M120 FEBs on page 113
Replacing an M120 FEB on page 149
An FPC is mapped to an empty FEB slot, the red alarm LED on the chassis is lit:
The FPC mapped to an empty FEB slot (or to a FEB that is offline) comes online, but its
Physical Interface Cards (PICs) do not, and the physical interfaces on those PICs are not
created.
On startup, the red alarm LED is lit if an FPC slot is filled, but the corresponding FEB
slot is empty.
The red alarm LED is lit if a FEB is removed before its connected FPCs are remapped
to either another FEB or to
To eliminate the red alarm LED:
Check the status of FEBs and determine whether each FPC is connected to an active
1.
FEB by entering the show chassis fpc-feb-connectivity
FPC is associated with the FEB of the same identifying number; for example, FPC 1 to
FEB 1.
If necessary, change the default FPC-FEB connection by using the
2.
statement at the
[edit chassis]
specify that the FPC is not mapped to any FEB. (When an FPC is configured not to
connect to any FEB, interfaces on that FPC are not created; however, no alarm is
triggered.)
Verify that the associated physical interfaces are created by entering the
3.
interfaces terse command.
For more information about configuring FPC-FEB connectivity, see the Junos OS System
Basics Configuration Guide.
M120 Forwarding Engine Boards (FEBs) Description on page 16
Maintaining the M120 FEBs on page 113
Replacing an M120 FEB on page 149
The power supply is not functioning properly.
.
none
hierarchy level. You can also map an FPC to
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command. By default, each
fpc-feb-connectivity
none
show
to