T4000 Routing Engine Description; Table 9: T4000 Supported Routing Engines - Juniper T4000 Hardware Manual

T4000 Routing Engine Description

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Copyright © 2018, Juniper Networks, Inc.
The Routing Engine runs Junos OS. The software processes that run on the Routing Engine
maintain the routing tables, manage the routing protocols used on the router, control
the router interfaces and some chassis components, and provide the interface for system
management and user access to the router.
You can install one or two Routing Engines in the router. The Routing Engines install into
the upper rear of the chassis in the slots labeled
a control board to be installed in the adjacent slot.
installs above . A Routing Engine does not power up without a control board present
CB1
in the adjacent slot.
If two Routing Engines are installed, one functions as the master and the other acts as
the backup. If the master Routing Engine fails or is removed and the backup is configured
appropriately, the backup takes over as the master. If the host system is redundant, the
backup Routing Engine is hot-removable and hot-insertable, but the master Routing
Engine is hot-pluggable. A Routing Engine that is not redundant requires that you power
down the router before replacement.
NOTE: For specific information about Routing Engine components (for
example, the amount of DRAM), issue the
command.
The ports for connecting the Routing Engine to external management devices are located
on the Connector Interface Panel (CIP).
The T4000 router supports the Routing Engine in

Table 9: T4000 Supported Routing Engines

Name
RE-C1800
RE-C1800
"T4000 RE-C1800 Routing Engine Description"
on page 34
NOTE: These Routing Engines require the
LCC-CB when a T4000 router is connected to
a TX Matrix Plus router.
T4000 Host Subsystem Description on page 29
T4000 Control Board Description on page 30
T4000 Craft Interface LEDs
Chapter 5: Host Subsystem Components and Descriptions
RE0 and RE1 . Each Routing Engine requires
installs below
RE0
show chassis routing-engine
Table 9 on page
Model Number
RE-DUO-C1800-8G
RE-DUO-C1800-16G
, and
CB0 RE1
33.
First Supported
Junos OS Release
12.1
12.1R2
33