E120 And E320 Overview; System Description; Chassis Overview - Juniper E120 - RELEASE 11.1.X HARDWARE GUIDE 3-25-2010 Hardware Manual

Chapter 1

E120 and E320 Overview

System Description

Chassis Overview

This chapter provides introductory information about the Juniper Networks E120
and E320 Broadband Services Routers. It contains the following sections:
System Description on page 3
Chassis Overview on page 3
E120 and E320 Modules on page 7
Network Management Tools on page 13
Redundancy Features on page 14
E Series routers are modular, carrier-class networking devices that deliver
performance, reliability, and service differentiation to both enterprise and residential
Internet users. The E120 router and E320 router are next-generation, high-capacity
additions to the E Series product family offering high-port density and high bandwidth
in a fully redundant system, supporting evolving IP-based broadband services. The
E120 router supports the same services as the E320 router, but with smaller capacity
and scaling capabilities for smaller configurations.
The routers utilize the same JUNOSe™ software architecture and provide a single IP
entry point into the service provider network with the same IP-based protocols and
services that are available on existing E Series products. They address a wide range
of edge applications, including subscriber management (including 802.11 hotspots),
video on demand, Voice over IP (VoIP), Metro Ethernet, customer circuit aggregation,
virtual private networks (VPNs), and wholesale services.
E Series routers offer the complete edge solution for IP-optimized carriers.
Two models are available:
E120 router
E320 router
Both models use the same software and share a system architecture and common
components:
3
System Description