Packet Classification; I/O Modules - Juniper E Series Hardware Manual

ERX 7.0.x Hardware Guide
Figure 14: Representative Line Module

Packet Classification

Most line modules support packet classification on ingress (some non-ASIC line
modules do not). A classification engine on the line module matches specific
fields (such as source and destination IP address, source and destination port,
and protocol), the ingress IP interface, layer 2 fields, or some combination
of these against user-configured filters at wire speed.

I/O Modules

Most line modules have a corresponding input/output (I/O) module that provides
the physical interconnection to the network. Insert each I/O module into the
back of the system, directly behind its corresponding line module.
For information about which line modules pair with which I/O modules, see the
E-series Module Guide. See Figure 5, Figure 17, and Figure 9 for locations. For
details about installing I/O modules, see "Installing Modules" on page 35.
16
E-series Modules
Ejector
Status LEDs
Board reset
button
NMI button
Midplane
connectors