Replacing A Ptx5000 Re-Ptx-X8-64G Routing Engine; Taking The Host Subsystem Offline - Juniper PTX5000 Hardware Manual

Replacing a PTX5000 RE-PTX-X8-64G Routing Engine

IN THIS SECTION

Taking the Host Subsystem Offline | 475

Removing the Routing Engine | 477
Installing the Routing Engine RE-PTX-X8-64G | 478
To replace the RE-PTX-X8-64G Routing Engine, perform the following procedures:
Taking the Host Subsystem Offline
Before you replace a Routing Engine, you must take the host subsystem offline. The host subsystem is
taken offline and brought online as a unit. Be aware of the effect of taking a host subsystem offline on
traffic, forwarding, and routing. See
Offline" on page 462.
To take a host subsystem offline:
1. Determine whether the Routing Engine to be replaced is currently functioning as the primary or as
the backup, using one of the following methods:
• Check the HOST 0 and HOST 1 LEDs on the craft interface. If the green MASTER LED is lit, the
corresponding host subsystem is functioning as the primary.
• Check the MASTER LED on the Control Board. If the blue MASTER LED is lit, the host subsystem
is functioning as the primary.
• Issue the show chassis routing-engine command. The primary Routing Engine is designated Master in
the Current state field.
user@host> show chassis routing-engine
user@host> show chassis routing-engine
Routing Engine status:
Slot 0:
Current state
Election priority
...
"Understanding the Effect of Taking the PTX5000 Host Subsystem
Master
Master (default)
475