5. Take the backup Control Board offline using the request system halt
other-routing-engine CLI command.
6. Use the show chassis routing-engine command to confirm that the Control Board is
offline. When the state field in the command output shows that the card is offline, it
is safe to remove the Control Board. See “Removing a Control Board from a QFX3008-I
Interconnect Device” on page 347.
Taking a Backup Control Board Offline
To take the backup Control Board offline:
1. Connect a management device to the console (CONSOLE) port on the master Control
Board in the QFX3008-I Interconnect device. For instructions about connecting a
management device to the console (CONSOLE) port, see “Connecting a QFX Series
Device to a Management Console” on page 285.
2. Take the backup Control Board offline using the request system halt
other-routing-engine CLI command.
3. Use the show chassis routing-engine command to confirm that the Control Board is
offline. When the state field in the command output shows that the card is offline, it
is safe to remove the Control Board. See “Removing a Control Board from a QFX3008-I
Interconnect Device” on page 347.
Related
Documentation
Installing a Control Board in a QFX3008-I Interconnect Device on page 349•
• Control Board in a QFX3008-I Interconnect Device on page 49
• Control Board LEDs on a QFX3008-I Interconnect Device on page 389
Removing a Control Board from a QFX3008-I Interconnect Device
There are two Control Boards in a QFX3008-I Interconnect device. The Control Boards
install horizontally in the rear of the chassis in the slots labeled CB 0 and CB 1. See “Slot
Numbering for a QFX3008-I Interconnect Device” on page 40.
CAUTION: Before you remove a Control Board, we recommend that you first
take it offline. It is important to know whether you are removing the master
or the backup Control Board.
See “Taking a Control Board Offline in a QFX3008-I Interconnect Device” on
page 345 for more information.
CAUTION: When you switch Control Board mastership, or when a master
Control Board fails, traffic is not forwarded over the QFX3008-I Interconnect
device until the backup Control Board assumes mastership.
347Copyright © 2012, Juniper Networks, Inc.
Chapter 26: Replacing QFX3008-I Components
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