Juniper Networks MX480 User Manual

Page 203

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user@host>

show chassis fabric summary

Plane State Uptime
4 Offline
5 Online 1 hour, 15 minutes, 35 seconds

Verify that the State of Plane 4 is Offline.

5.

Take the remaining fabric planes offline by issuing the

request chassis fabric plane

5/6/7 offline

command—that is, by changing the fabric plane number each time. Verify

that the fabric planes are offline by issuing the command given in Step 2.

6.

Take the SCB in slot 1 offline by issuing the

request chassis cb offline slot 1

command.

7.

Verify that the control board is offline by issuing the

show chassis environment cb 1

command:

user@host>

show chassis environment cb 1

CB 1 status:
State Offline
Power 1 Disabled
Power 2 Disabled

8.

Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
the strap to one of the ESD points on the chassis.

9.

Remove and replace SCB1 on the router with the enhanced SCB. Use the replacement
procedure described in

“Removing an MX480 SCB” on page 174

10.

Verify that the installation is successful and the SCB is online by issuing the

show

chassis environment cb 1

command:

user@host>

show chassis environment cb 1

CB 1 status
State Online
Temperature 30 degrees C / 86 degrees F

Other details, such as power, are also displayed along with the state.

11.

Verify that the fabric planes come online correctly by issuing the

show chassis fabric

summary

command:

user@host>

show chassis fabric summary

Plane State Uptime
4 Online 2 minutes, 25 seconds
5 Online 2 minutes, 15 seconds
6 Online 2 minutes, 3 seconds
7 Online 1 minute, 49 seconds

12.

Verify that the backup Routing Engine is back online by issuing the

show chassis

routing-engine 0

command:

user@host>

show chassis routing-engine 0

Routing Engine Status:
Slot 0:
Current State Backup

13.

Verify the alarms by issuing the

show chassis alarms

command:

user@host>

show chassis alarms

Alarm Time Class Description
2011-06-01 13:26:56 EDT Major CB fabrics are of mixed types

179

Copyright © 2013, Juniper Networks, Inc.

Chapter 14: Replacing MX480 Hardware Components

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