Specifications

Related
Documentation
New and Changed Features on page 21
•
• Changes in Behavior and Syntax on page 54
• Known Behavior on page 68
• Known Issues on page 70
• Resolved Issues on page 80
• Migration, Upgrade, and Downgrade Instructions on page 156
• Product Compatibility on page 165
Migration, Upgrade, and Downgrade Instructions
This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade
policies for Junos OS for the M Series, MX Series, and T Series. Upgrading or downgrading
Junos OS can take several hours, depending on the size and configuration of the network.
•
Basic Procedure for Upgrading to Release 13.3 on page 156
•
Upgrade and Downgrade Support Policy for Junos OS Releases on page 159
•
Upgrading a Router with Redundant Routing Engines on page 159
•
Upgrading Juniper Network Routers Running Draft-Rosen Multicast VPN to Junos OS
Release 10.1 on page 160
•
Upgrading the Software for a Routing Matrix on page 161
•
Upgrading Using Unified ISSU on page 162
•
Upgrading from Junos OS Release 9.2 or Earlier on a Router Enabled for Both PIM and
NSR on page 163
•
Downgrading from Release 13.3 on page 164
•
Changes Planned for Future Releases on page 164
Basic Procedure for Upgrading to Release 13.3
In order to upgrade to Junos OS 10.0 or later, you must be running Junos OS 9.0S2, 9.1S1,
9.2R4, 9.3R3, 9.4R3, 9.5R1, or later minor versions, or you must specify the no-validate
option on the request system software install command.
When upgrading or downgrading Junos OS, always use the jinstall package. Use other
packages (such as the jbundle package) only when so instructed by a Juniper Networks
support representative. For information about the contents of the jinstall package and
details of the installation process, see the Installation and Upgrade Guide.
NOTE: With Junos OS Release 9.0 and later, the compact flash disk memory
requirement for Junos OS is 1 GB. For M7i and M10i routers with only 256 MB
memory, see the Customer Support Center JTAC Technical Bulletin
PSN-2007-10-001 at
https://www.juniper.net/alerts/viewalert.jsp?txtAlertNumber=PSN-2007-10-001
&actionBtn=Search
Copyright © 2015, Juniper Networks, Inc.156
Release Notes: Junos OS Release 13.3R6 for the EX Series, M Series, MX Series, PTX Series, and T Series