Release Installation
Complete procedures for installing the system software are available in JUNOSe System Basics Configuration Guide, Chapter 3, Installing JUNOSe Software. 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 from a 3.x Release to a 4.x, 5.x, or Higher Release
You must perform a factory reset if you want to upgrade from a release lower than 4.0.0 to Release 4.0.0 or higher. To retain your router configuration, perform the following steps:
- Set the terminal length of the console to 0.
- While running a release lower than 4.0.0 on a configured router, use the show configuration command to create a configuration script by redirecting the output to a file before you install 4.0.0 or higher software.
- Verify that the script was created.
- Install the 4.0.0 or higher software.
- Run the configuration script after the new software has been installed and all line modules are online.
The following screen output illustrates the process:
host1#term length 0
host1#show configuration &> 3-2-3.scr
-- show config output --
...
...
host1#dir
unshared in
file size size date (UTC) use
--------------------- -------- -------- ------------------- ---
config.cnf 531755 531755 06/27/2002 13:02:18
reboot.hty 1536 1536 06/27/2002 13:43:40
3-2-3.rel 69840063 69840063 06/25/2002 11:15:30 !
3-2-3.scr 149327 149327 06/27/2002 14:40:28
erx_4-0-0.rel 87104081 87104081 06/27/2002 15:52:36
host1#config t
Enter configuration commands, one per line. End with ^Z.
host1(config)#boot config factory-defaults
WARNING: Execution of this command will cause all configuration settings to revert to factory defaults upon the next system reboot.
Proceed with 'boot config factory-defaults'? [confirm]
host1(config)#boot system erx_4-0-0.rel
Please wait................
WARNING: It is recommended that you copy the current running-configuration to a file prior to running with a different release of software.
host1(config)#exit
host1#reload
WARNING: Execution of this command will cause the system to reboot.
Proceed with reload? [confirm]
Reload operation commencing, please wait...
-- Reload/boot messages --
...
...
Logged in on console 0.
Copyright (c) 1998-2002 Juniper Networks, Inc. All rights reserved.
host1>enable
host1#dir
unshared in
file size size date (UTC) use
--------------------- -------- -------- ------------------- ---
config.cnf 531755 531755 06/27/2002 13:02:18
reboot.hty 1536 1536 06/27/2002 13:43:40
3-2-3.rel 69840063 69840063 06/25/2002 11:15:30
3-2-3.scr 149327 149327 06/27/2002 14:40:28
erx_4-0-0.rel 87104081 87104081 06/27/2002 15:52:36 !
* File is not stored in main file system and is not included in capacity figures
host1#show version
Copyright (c) 1998-2002 Juniper Networks, Inc. All rights reserved.
System Release: erx_4-0-0.rel
Version: 4.0.0 release-0.0 (June 23, 2002 20:03)
System running for: 0 days, 0 hours, 4 minutes, 12 seconds
(since WED JUN 27 2002 16:03:21 UTC)
slot state type admin spare running release
---- -------------- -------- ------- ----- -----------------
0 online SRP-10Ge enabled --- erx_4-0-0.rel
1 --- --- --- --- ---
2 online TUNNEL-SERVER enabled --- erx_4.0.0.rel
3 online OC3d enabled --- erx_4-0-0.rel
4 online GE(P1) enabled --- erx_4-0-0.rel
5 online COC3-4 enabled --- erx_4-0-0.rel
6 --- --- --- --- ---
host1#conf f 3-2-3.scr
Proceed with configure? [confirm]
host1#
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.
Upgrading from Release 5.1.1 or Lower-Numbered Releases to
Release 6.x.x or Higher-Numbered Releases
Release 5.1.1 or lower-numbered releases support application images only up to 172 MB. To install larger application images for Release 6.0.0 and higher-numbered releases, you must first install Release 5.1.2 (or a higher-numbered 5.x.x release). This enables the system to support application images greater than 172 MB. For example, you cannot go from Release 5.1.1 to Release 7.2.0 without first upgrading to Release 5.1.2. See the following table for compatibility of releases.
Your software upgrades may be available remotely through Telnet or FTP, or may be delivered on a new NVS card. Depending on how you access the software updates, there are two different procedures to follow. For more detailed information on installing software, and about NVS cards and SRP modules, see the special hardware notice, Upgrading to JUNOSe Software Release 6.x.x or Higher-numbered Releases from Release 5.1.1 or Lower-numbered Releases, available at http://www.juniper.net/techpubs/hardware/e-series.html.
Moving Line Modules Between Releases
The ERX-1440 router employs a 40-Gbps SRP module and a new midplane. Release 3.3.2 was the first software release to support the 40-Gbps SRP module and midplane. Before you can transfer a line module from an ERX-705, ERX-710, or ERX-1410 router to an ERX-1440 router, you must first load Release 3.3.2 or a higher release onto the current router, and then reboot the router to load the release onto the line modules. If you then move any of those line modules to an ERX-1440 router, that router is able to recognize the line module.
If you move a line module from an ERX-1440 router to an ERX-705, ERX-710, or ERX-1410 router, the module loads properly in the new router regardless of the release.
SRP Module Memory Requirements
For Release 5.3.0 and higher software releases on ERX-14xx models, ERX-7xx models, and the ERX-310 router, see ERX Module Guide, Chapter 1, Module Combinations, for detailed information about memory requirements.
For Release 7.0.1 and higher software releases on E320 routers, see E320 Module Guide, Chapter 1, Modules and IOAs, for detailed information about memory requirements.
Hardware and Software Compatibility
For important information about hardware and software, see the document set as follows:
- Combinations of line modules to achieve line rate performance are in JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules.
- Compatibility of ERX router modules with software releases is in ERX Module Guide, Chapter 1, Module Combinations.
- Layer 2 and layer 3 protocols and applications supported by ERX router modules are in ERX Module Guide, Appendix A, Module Protocol Support.
- Compatibility of E320 router modules with software releases is in E320 Module Guide, Chapter 1, Modules and IOAs.
- Layer 2 and layer 3 protocols and applications supported by IOAs on the E320 router are in E320 Module Guide, Appendix A, IOA Protocol Support.