Routing Engines And Switch Fabric - Dell PowerConnect J-EX4200-24T Software Manual

Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS

Routing Engines and Switch Fabric

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Figure 1: J-EX8208 Switch
The J-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 a J-EX8200 Switch.
The J-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 a J-EX8208 Switch.
Switching functionality, system management, and system control functions of a J-EX8208
switch are performed by the Switch Fabric and Routing Engine (SRE) module. See Switch
Fabric and Routing Engine (SRE) Module in a J-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 a J-EX8208 Switch.