Replacing A Ptx5000 Re-Duo-C2600 Routing Engine; Taking The Ptx5000 Host Subsystem Offline - Juniper PTX5000 Hardware Manual

Replacing a PTX5000 RE-DUO-C2600 Routing Engine

IN THIS SECTION

Taking the PTX5000 Host Subsystem Offline | 465

Removing a PTX5000 Routing Engine | 467
Installing a PTX5000 Routing Engine | 467
Taking the PTX5000 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:
a. 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.
b. Check the MASTER LED on the Control Board. If the blue MASTER LED is lit, the host subsystem
is functioning as the primary.
c. 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)
465