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ERX 8.0.x Hardware Guide
Figure 8: Modules in ERX-14xx Models
I/O modules
I/O modules
SRP I/O
module
Line modules
Line modules
SRP modules
Connection via
passive midplane
g013734
NOTE: So
me line modules require a minimum amount of memory to be used
with JUNOSe Release 5.3.0 or a higher-numbered release. See the ERX Module
Guide for line modul e specifications.
SRP Module
Switch route processor (SRP) modules perform system ma na gement, routing
table c
alculations and maintenance, forwarding table com pu tations, statistics
processing, configuration storage, and other control plane functions. Each
SRP module is a PowerPC-based system with its own memory, n o nvolatile
disk st
orage, and power supply. (S ee Figure 9 and Figure 10.)
10 ERX Modules