Start time: 2006-09-08 16:29:59 PDT
Uptime: 1 hour, 3 minutes, 4 seconds
You can also issue the show chassis environment feb command to check the status of
a specific FEB. In the example below, the FEB is slot 0 is used. The output is similar to
the following:
user@host> show chassis environment feb 0
FEB 0 status:
State Online
Temperature Intake 66 degrees C / 150 degrees F
Temperature Exhaust A 67 degrees C / 152 degrees F
Temperature Exhaust B 73 degrees C / 163 degrees F
Power
1.2 V 1153 mV
1.5 V 1417 mV
1.8 V 1704 mV
2.5 V 2375 mV
3.3 V 3138 mV
5.0 V 4763 mV
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.
279Copyright © 2018, Juniper Networks, Inc.
Chapter 31: Maintaining Components and Cables
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