Completing a Standard or Change Category Installation

This chapter describes how to perform a standard or change category installation of the JUNOS Software.

For information about JUNOS Software media and packages, see Introduction to JUNOS Software. For information on the installation process, see Installation Overview

Note: When you upgrade from a previous installation of the JUNOS Software to Release 8.4R1 or later on an MX Series router, the MAC addresses on the Dense Port Concentrator (DPC) Ethernet ports change.

The change category installation process is used to move from one category of the JUNOS Software to another. For example, you can move from standard JUNOS on an M Series router to the export version of JUNOS Software. When performing a software category change, you need to take special precautions during the installation. These precautions delete the previous installation and prevent users from rolling back the server to these older installations.

This chapter discusses the following topics:

• Confirming That the Current Configuration Is Compatible with the Candidate Software
• Determining Which JUNOS Software Version Is Running
• Downloading Software
• Connecting to the Console Port
• Backing Up M Series, MX Series, T Series, TX Matrix, and TX Matrix Plus Routers
• Backing Up J Series Routers
• Installing the Software Package on a Router with a Single Routing Engine
• Installing the Software Package on a Router with Redundant Routing Engines
• Upgrading Individual Software Packages
• Upgrading Routers Using ISSU