Juniper Networks E-Series manual Installing JUNOSe Software, Overview

Installing JUNOSe	B
Software

Caution: Check the Release Notes for extra information about installing and upgrading the software.

The E-series software resides on an NVS card located in the SRP module. We ship every SRP module with an NVS card that contains a software release. We ship new software releases on a CD. This appendix provides information on how to install a new software release on an E-series router.

Topic	Page
Overview	B-1
Installing Software When a Firewall Exists	B-2
Installing Software When a Firewall Does Not Exist	B-8
Copying Release Files from One E-Series Router to Another	B-15
Upgrading Systems That Are Operating with Two SRP Modules	B-16

Overview

If the router contains only one SRP module, you should divert traffic to another router before you install a new software release, because the router will be unavailable during the installation process. Depending on whether a firewall separates the E-series router from the network host, you can then complete the appropriate software installation (see Installing Software When a Firewall Exists or Installing Software When a Firewall Does Not Exist). However, if the router contains two SRP modules, you can upgrade the software while the system is operating (see Upgrading Systems That Are Operating with Two SRP Modules).

When installing new JUNOSe software, you must mount the software

CD on a network host and transfer the release files to at least one E-series