Before you configure network interfaces, you need to perform
the following tasks:
Install J-series device hardware. For more information,
see the J-series Services Routers Hardware Guide.
Establish basic connectivity. For more information, see
the Getting Started Guide for your device.
If you do not already have a basic understanding of physical
and logical interfaces and Juniper Networks interface conventions,
read Interfaces Overview.
Although it is not a requirement, you might also want to plan
how you are going to use the various network interfaces before you
start configuring them.