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1.2 V Rocket IO 1160 mV
1.5 V Rocket IO 1408 mV
1.8 V RLDRAM 1717 mV
I2C Slave Revision 15
•
To take a FEB offline or online or restart it, click
Offline
,
Online
, enter the
request chassis
feb (online | offline | restart) slot
slot-number
command.
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
edit chassis redundancy
feb-redundancy group group-name
command.
•
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
fpc-feb-connectivity
statement at the
[edit chassis]
hierarchy level. You can also map an FPC to
none
to 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.)
•
To view which FPCs are mapped to which FEBs and the status of each link, enter
the
show chassis fpc-feb-connectivity
command.
For more information about FEB redundancy groups and FPC-to-FEB connectivity, see
the
Junos OS System Basics Configuration Guide
.
Related
Documentation
M120 Forwarding Engine Boards (FEBs) Description on page 16
•
•
Replacing an M120 FEB on page 149
•
Troubleshooting M120 FEBs on page 122
Maintaining the M120 Power Supplies
Purpose
For optimum router performance, verify the condition of the power supplies.
Action
Check the status of the power supplies by issuing the
show chassis environment pem
command. The output is similar to the following:
•
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Copyright © 2010, Juniper Networks, Inc.
Chapter 12: Maintaining M120 Router Hardware Components
All manuals and user guides at all-guides.com