Maintaining The M120 Power Supplies - Juniper Networks Hardware Manual

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Maintaining the M120 Power Supplies

Purpose
Action
Copyright © 2010, Juniper Networks, Inc.
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1.2 V Rocket IO
1.5 V Rocket IO
1.8 V RLDRAM
I2C Slave Revision
To take a FEB offline or online or restart it, click
feb (online | offline | restart) slot slot-number
NOTE: If you bring a FEB offline (or remove it), interfaces on FPCs
connected to the FEB are deleted. When you bring the FEB back online, the
interfaces are restored.
Plan FEB redundancy groups according to your network requirements.
A FEB redundancy group is a named collection of two or more Forwarding Engine
Boards (FEBs) that can improve interface availability. You can design your redundant
FEB configuration to provide backup on a one-to-one basis, or you can provide one
backup for multiple FEBs. Each FEB redundancy group can contain only one primary
FEB.
To create or edit FEB redundancy groups, use the
feb-redundancy group group-name
Change the default assignments of FPCs to FEBs according to your network
requirements. By default, each FPC is assigned to the FEB of the same identifying
number; for example, FPC 1 is assigned to FEB 1.
To assign an FPC to a FEB, use the
hierarchy level. You can also map an FPC to
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.)
To view which FPCs are mapped to which FEBs and the status of each link, enter
the
show chassis fpc-feb-connectivity
For more information about FEB redundancy groups and FPC-to-FEB connectivity, see
the Junos OS System Basics Configuration Guide.
M120 Forwarding Engine Boards (FEBs) Description on page 16
Replacing an M120 FEB on page 149
Troubleshooting M120 FEBs on page 122
For optimum router performance, verify the condition of the power supplies.
Check the status of the power supplies by issuing the
command. The output is similar to the following:
Chapter 12: Maintaining M120 Router Hardware Components
1160 mV
1408 mV
1717 mV
15
, , enter the
Offline Online
command.
edit chassis redundancy
command.
fpc-feb-connectivity statement at the
none to specify that the FPC is not
command.
show chassis environment pem
request chassis
[edit chassis]
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