Table 26: Routing Engine Status Before Upgrading And Rebooting One Routing - Juniper EX9200 Features Manual

Step-by-Step
Procedure
Copyright © 2017, Juniper Networks, Inc.
Upgrading and Rebooting Only One Routing Engine
In certain circumstances you might want to install the new software on only one Routing
Engine.
The advantage is if the results of your testing requires you to downgrade the software,
you can switch Routing Engines to run the old software on one Routing Engine and then
install the old software on the other Routing Engine. This is not the typical scenario.
Table 26 on page 207 shows the Routing Engine status prior to starting the unified ISSU.
Table 26: Routing Engine Status Before Upgrading and Rebooting One
Routing Engine
RE0
Master
Old software version installed
Old software version running
To upgrade and rebooting only one Routing Engine:
Perform the steps in
1.
on page 190.
Perform the steps in
2.
Software" on page 191.
Perform the applicable steps in
3.
Configuration" on page
Copy the Junos OS software package to the device by using the
4.
ftp://username@hostname.net/filename /var/tmp/filename
We recommend that you copy the package to the
large file system on the hard disk.
{master}
user@host> file copy
ftp://myid@myhost.mydomain.net/jinstall64-14.1R4.10-domestic-signed.tgz
/var/tmp/jinstall64-14.1R4.10-domestic-signed.tgz
BEST PRACTICE:
for your device, record the md5 checksum. After downloading the
software package to your device, confirm that it is not modified in any
way by using the
about verifying the md5 checksum, see
http://kb.juniper.net/InfoCenter/index?page=content&id=KB17665
RE1
Backup
Old software version installed
Old software version running
"Verifying Dual Routing Engines and Enabling GRES and NSR"
"Verifying the Software Versions and Backing Up the Device
"Adjusting Timers and Changing Feature-Specific
192.
When you access the Download Software web page
file checksum md5
Chapter 17: Performing a Unified ISSU
file copy
command.
directory, which is a
/var/tmp
command. For more information
.
207