Maintaining The T1600 Host Subsystem; Maintaining The T1600 Routing Engines - Juniper T1600 Hardware Manual

T1600 Core Router Hardware Guide
Related
Documentation

Maintaining the T1600 Host Subsystem

Maintaining the T1600 Routing Engines

Purpose
154
To display the status of the fans, issue the
output is similar to the following:
user@host> show chassis environment
Class Item
...
Fan Top Left Front fan
Top Right Rear fan
Top Right Front fan
Top Left Rear fan
Bottom Left Front fan
Bottom Right Rear fan
Bottom Right Front fan
Bottom Left Rear fan
Rear Fan 1 (TOP)
Rear Fan 2
Rear Fan 3
Rear Fan 4
Rear Fan 5
Rear Fan 6
Rear Fan 7 (Bottom)
...
Top Left and Top Right refer to fans in the upper front fan tray.
refer to fans in the lower front fan tray.
Right
T1600 Cooling System Description on page 69
Troubleshooting the T1600 Cooling System on page 182
The host subsystem comprises a Routing Engine and up to two adjacent control boards
functioning together.
To maintain the host subsystem, check the host subsystem LEDs (
on the craft interface. If the red
get more information about the cause of the problem. For more information about the
LEDs and the display, see "T1600 Craft Interface Description" on page 51
To maintain the Routing Engines and control boards:
Maintaining the T1600 Routing Engines on page 154
Maintaining the T1600 Control Boards on page 155
For optimum router performance, verify the condition of the routing engines and the
control boards.
show chassis environment
Status Measurement
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
refers to the fans in the rear fan tray.
Rear
HOST0 FAIL or HOST1 FAIL
Copyright © 2010, Juniper Networks, Inc.
command. The
Bottom Left and Bottom
and
HOST0 HOST1
LED is lit, look at the LCD to
)