Juniper MX480 Hardware Manual page 201

Copyright © 2011, Juniper Networks, Inc.
NOTE: Do not add or remove any router hardware during the upgrade
procedure.
Upgrading the First SCB
TIP: MX480 has two slots for SCB—that is, SCB0 and SCB1—and these
correspond to RE0 and RE1 respectively, where SCB1 is the first SCB.
To upgrade the first SCB—that is, SCB1:
Take the fabric plane offline by issuing the
1.
command. SCB1 has four fabric planes numbered, 4, 5, 6, and 7.
Verify that the fabric plane is offline by issuing the
2.
command.
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.
Take the remaining fabric planes offline by issuing the
3.
command—that is, by changing the fabric plane number each time. Verify
5/6/7 offline
that the fabric planes are offline by issuing the command given in Step 2.
Take the SCB in slot 1 offline by issuing the
4.
Verify that the control board is offline by issuing the
5.
command:
user@host> show chassis environment cb 1
CB 1 status:
State Offline
Power 1 Disabled
Power 2 Disabled
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
6.
the strap to one of the ESD points on the chassis.
Remove and replace SCB1 on the router with the enhanced SCB. Use the replacement
7.
procedure described in
Verify that the installation is successful and the SCB is online by issuing the
8.
chassis environment cb 1
user@host> show chassis environment cb 1
CB 1 status
State Online
Temperature 30 degrees C / 86 degrees F
Chapter 14: Replacing MX480 Hardware Components
request chassis fabric plane 4 offline
request chassis cb offline slot 1
"Removing an MX480 SCB" on page 166
command:
show chassis fabric summary
request chassis fabric plane
command.
show chassis environment cb 1
show
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