Juniper Networks ERX Hardware 8 - Manual (Page 22)

ERX 8.0.x Hardware Guide
Conditions for line rate performance of line modules
Type, capacity, and number of SRP modules used
ERX-14xx Models
NOTE: In the E-series documentation, the term ERX-14xx models refers to both
the ERX-1440 router and the ERX-1410 router. The terms ERX-1440 router and
ERX-1410 router refer to the specific models. See Figure 1 and Figure 2.
The ERX-1440 router manages an extremely high volume of network traffic,
and uses a 40-Gbps switch route processor (SRP) module, either the SRP-40G or
SRP-40G+ module. (The SRP-40G+ module obsoletes the SRP-40G module;
however, the software continues to support both modules.) In this model, all
line modules operate at full wire speed simultaneously.
The ERX-1410 router manages high levels of network traffic, and uses the
10-Gbps SRP module (SRP-10G). You can configure the ERX-1410 router to
enable the line modules either to operate at full line rate performance or to
allow line modules to operate at a rate dependent on the resources available.
The former option restricts the allowed combinations of line modules. For
information on configuring performance of line modules, see JUNOSe System
Basics Configuration Guide, Chapter 6, Managing Modules.
NOTE: The 10-Gbps SRP module used in the ERX-310 router is different from the
10-Gbps SRP module used in the ERX-1410 router. See “SRP Module” on page 10
for more information.
Externally, the ERX-1440 chassis is the same as the ERX-1410 chassis. (See Figure 1
and Figure 2.) Both routers contain 14 vertical slots to accommodate modules.
Internally, the ERX-1440 chassis differs from the ERX-1410 chassis, and
includes a special midplane for the 40-Gbps SRP module.
Installation procedures and operating procedures are identical for both
systems. All ERX-7xx and ERX-14xx models use the same SRP I/O module,
but different power input modules are used.
NOTE: The router may look different from the routers shown in the figures in this
chapter, depending on the line modules in the slots.
4 ERX Routers