Release Installation
1
Release 11.0.2
Release Installation
Complete procedures for installing the system software are available in
JunosE
System Basics Configuration Guide, Chapter 3, Installing JunosE Software
.
New software releases are available for download from the Juniper Networks
website at http://www.juniper.net/customers/support. You can use the downloaded
image bundle to create your own software CDs.
Before upgrading to a new version of software, save your router’s running
configuration to a .cnf file or .scr file. If you subsequently need to downgrade for
any reason, you can restore the earlier software version.
Upgrading to Release 5.3.0 or a Higher-Numbered Release
When you upgrade from a lower-numbered release to Release 5.3.0 or a
higher-numbered release, the higher release might not load if you issue the
boot
system
command from Boot mode while the lower-numbered software is running
on the router or if you insert a flash card running a higher-numbered release into a
system running a lower numbered release. However, if you issue the
boot system
command from Global Configuration mode, the new software loads properly.
NOTE:
When you upgrade the software on a router that has a large number of
interfaces configured, the router might appear to be unresponsive for several
minutes. This condition is normal; allow the process to continue uninterrupted.
