Mx240 Routing Engine Description - Juniper MX240 Hardware Manual

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MX240 Routing Engine Description

Copyright © 2017, Juniper Networks, Inc.
MX240 Router Overview on page 3
MX240 Chassis Description on page 8
MX240 Dense Port Concentrator (DPC) Description on page 49
MX240 SCB Description on page 97
MX240 Flexible PIC Concentrator (FPC) Description on page 57
MX240 Power System Description on page 89
The Routing Engine is an Intel-based PC platform that runs Junos OS. Software processes
that run on the Routing Engine maintain the routing tables, manage the routing protocols
used on the router, control the router interfaces, control 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 front of the chassis in horizontal slots in the SCBs labeled
Engine must be installed directly into an SCB. A USB port on the Routing Engine accepts
a USB memory card that allows you to load Junos OS.
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. The Backup Routing Engine is
hot-insertable and hot-removable.
The MX240 router supports the RE-S-1300-2048, EE-S-2000-4096, RE-S-1800,
RE-S-X6-64G, and RE-S-X6-64G-LT Routing Engines. See
Figure 13 on page 24, and Figure 14 on page
NOTE: If two Routing Engines are installed, they must both be the same
hardware model.
The RE-S-X6-64G-LT Routing Engine is equipped with limited encryption
support only.
Chapter 5: Host Subsystem Components and Descriptions
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Figure 12 on page
24.
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