Replacing Host Subsystem Components; Replacing The T320 Host Subsystem Components; Taking The T320 Host Subsystem Offline; Table 64: Effect Of Taking The T320 Host Subsystem Offline - Juniper Core Router T Series Hardware Manual

CHAPTER 26

Replacing Host Subsystem Components

Replacing the T320 Host Subsystem Components

Taking the T320 Host Subsystem Offline

Table 64: Effect of Taking the T320 Host Subsystem Offline

Type of Host Subsystem
Nonredundant host
subsystem
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Replacing the T320 Host Subsystem Components on page 205
Replacing a T320 Routing Engine on page 220
Replacing a DIMM Module in T320 Routing Engines on page 224
Replacing a T320 PC Card on page 225
Replacing a T320 Standard Control Board or T-CB on page 228
To replace a host subsystem, perform the following procedures:
Taking the T320 Host Subsystem Offline on page 205
Replacing a T320 Standard Control Board or T-CB on page 208
Replacing a T320 PC Card on page 211
Replacing a DIMM Module in T320 Routing Engines on page 213
Replacing a T320 Routing Engine on page 215
The host subsystem is taken offline and brought online as a unit. Before you replace a
control board or Routing Engine, you must take the host subsystem offline.
Normally, if two host subsystems are installed in the router,
and RE1 functions as the backup. You can remove the backup host subsystem (or either
of its components) without interrupting the functioning of the router. If you take the
master host subsystem offline, the backup host subsystem becomes the master (the
router might reboot, depending on your configuration). If the router has only one host
subsystem, taking the host subsystem offline causes the router to shut down.
Table 64 on page 205 explains the effect of taking the host subsystem offline.
Effect of taking the Host Subsystem Offline
The router shuts down.
functions as the master
RE0
205