Juniper Networks ERX Hardware 8 - Manual (Page 28)

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: Some 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 module specifications.
SRP Module
Switch route processor (SRP) modules perform system management, routing
table calculations and maintenance, forwarding table computations, statistics
processing, configuration storage, and other control plane functions. Each
SRP module is a PowerPC-based system with its own memory, nonvolatile
disk storage, and power supply. (See Figure 9 and Figure 10.)
10 ERX Modules