Routing Engines And Switch Fabric - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

Complete Software Guide for Junos

Routing Engines and Switch Fabric

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OS for EX Series Ethernet Switches, Release 10.4
Figure 3: EX8208 Switch
The EX8208 switch has a chassis-level LCD panel that displays Routing Engine and
switch fabric status as well as chassis components' alarm information for rapid problem
identification. The LCD panel provides a user-friendly interface for performing initial
switch configuration, rolling back a configuration, or restoring the switch to its default
settings. See LCD Panel in an EX8200 Switch.
The EX8208 chassis backplane distributes the data, control, and management signals
to various system components along with distributing power throughout the system.
See Chassis Physical Specifications of an EX8208 Switch.
Switching functionality, system management, and system control functions of an EX8208
switch are performed by a Switch Fabric and Routing Engine (SRE) module. See Switch
Fabric and Routing Engine (SRE) Module in an EX8208 Switch. An SRE module contains
a Routing Engine and switch fabric. The SRE modules are installed in the front of the
chassis in the slots labeled SRE0 and SRE1. See Slot Numbering for an EX8208 Switch.
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