Srx5800 Services Gateway Routing Engine Description - Juniper SRX5800 Hardware Manual

Table 5: SCB Slot Mapping and Functionality (continued)
Functionality
Redundant fabric
Related
Documentation

SRX5800 Services Gateway Routing Engine Description

Copyright © 2014, Juniper Networks, Inc.
Slot
0
SCB
Routing Engine
For detailed information about SCBs supported by the SR5800 Services Gateway, see
the
SRX5400, SRX5600, and SRX5800 Services Gateway Card Guide
www.juniper.net/techpubs/
SRX5800 Services Gateway Card Cage and Slots on page 11
Maintaining the SRX5800 Services Gateway Host Subsystem and SCBs on page 123
Replacing an SRX5800 Services Gateway SCB on page 158
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 device, control the device interfaces, control some chassis components, and
provide the interface for system management and user access to the device.
You must install at least one Routing Engine in the services gateway. You can install a
second Routing Engine if both Routing Engines are running Junos OS Release 10.0 or
later.
A second Routing Engine is required if you are using the dual chassis cluster control link
feature available in Junos OS Release 10.0 and later. The second Routing Engine does
not perform all the functions of a Routing Engine and does not improve resiliency or
redundancy. The second Routing Engine and the Switch Control Board (SCB) in which
it is installed do not constitute a host subsystem. The only function of the second Routing
Engine is to enable the hardware infrastructure that enables the
1 port on the Services Processing Card (SPC) used for chassis cluster control links.
If you install only one Routing Engine in the services gateway, you must install it in the
slot in the front panel of SCB0. If you install a second Routing Engine to use the dual
chassis cluster control link feature, you install it in the slot in the front panel of SCB1.
A USB port on the Routing Engine accepts a USB memory card that allows you to load
Junos OS.
Chapter 2: SRX5800 Services Gateway Hardware Components
Slot
1
SCB
.
Slot
2/6
SCB
at
Chassis Cluster Control
19