Juniper E Series - Chapter 1 E-Series Overview; E-Series Overview; Overview; Where E-Series Routers Fit in

Overview ! 3
Chapter 1
E-series Overview
This chapter provides introductory information about the E-series routers.
Overview
E-series routers are modular, carrier-class networking devices that deliver
performance, reliability, and service differentiation to both business and consumer
Internet users. The ERX-7xx/14xx models offer high port density, low power
consumption, and fully redundant Internet access routing and edge aggregation.
The ERX-310 router supports the same services, but with smaller capacity and
scaling capabilities. E-series routers offer the complete edge solution for
IP-optimized carriers.
Where E-series Routers Fit In
Communications with the router can take place over a variety of media. Figure 1
and Figure 2 illustrate the location of E-series routers as an edge router in an
end-to-end Internet network. In Figure 1, the customers are businesses using T1/T3
communication lines. In Figure 2, the customers are using digital subscriber lines
(DSLs) with a DSL access multiplexer (DSLAM).
Topic Page
Overview 3
Where E-series Routers Fit In 3
E-series Routers 5
ERX-14xx Models 5
ERX-7xx Models 7
ERX-310 Router 9
E-series Modules 11
Network Management Tools 16
Redundancy Features 16