Chapter 1
Overview of Services Routers
J-series Services Routers provide stable, reliable, and efficient IP routing, WAN and
LAN connectivity, and management services for small to medium-sized enterprise
networks. Services Routers typically connect small, branch, or regional offices to a
central site router, and link Internet service provider (ISP) networks.
All J-series Services Routers run the JUNOS software, which offers many advanced
routing and security services. For more information about software features, see
“J-series Software Features and Licenses” on page 7. A single, common JUNOS code
base simplifies deployment, patches, and software upgrades.
You can use two user interfaces to monitor, configure, troubleshoot, and manage a
Services Router:
■ J-Web interface—A Web-based graphical interface that allows you to operate a
router without commands. The J-Web interface provides access to all JUNOS
functionality and features. Quick Configuration wizards simplify basic
configuration and minimize the risk of operator error.
■ JUNOS command-line interface—A Juniper Networks command shell that runs
on top of a UNIX-based operating system kernel. The CLI is a straightforward
command interface. On a single line, you type commands that are executed
when you press the Enter key. The CLI provides command Help and command
completion.
For an introduction to the J-Web and CLI interfaces, see “Services Router User
Interface Overview” on page 81. For more information, see the J-Web Interface User
Guide and the JUNOS CLI User Guide.
This chapter contains the following topics:
■ J2320 Services Router Overview on page 3
■ J2350 Services Router Overview on page 4
■ J4350 Services Router Overview on page 5
■ J6350 Services Router Overview on page 6
■ J-series Software Features and Licenses on page 7
J2320 Services Router Overview
The J2320 Services Router is primarily designed for remote or branch offices. It has
a small chassis that is 1 U (rack unit) in size with a nonredundant AC power supply,
J2320 Services Router Overview ■ 3