Switching

Hi,

I want to upgrade JunOS on some of the QFX5100 that are in production. I found that the JTAC recommended version for this model is 18.1R3-S9 / 18.4R2-S3. I have selected 18.4R2-S3 to be installed on my devices. However, this version has more variants available to download, i.e.

Limited - QFX 5 Series Switch with Enhanced Automation
Limited - QFX 5e Series Switch
QFX 5 Series Switch
QFX 5 Series Switch with Enhanced Automation
QFX 5e Series Switch
QFX 5e Series Switch with Enhanced Automation

I am not interested in the Limited and versions without Enhanced Automation. However, can someone tell me what are the major differences between "QFX 5 Series Switch with Enhanced Automation" and "QFX 5e Series Switch with Enhanced Automation". The difference between file size for these two versions is also quite significant. Also, kindly share if there is any related Juniper doc/KB.

Thanks

Hi

The image 5e is required in a mixed VC of qfx5100 and qfx5110.

Here is the KB article which explains the need of 5e image in case of a mix Virtual Chassis

https://kb.juniper.net/InfoCenter/index?page=content&id=KB32473&actp=RSS

Hope this helps.

Hey vakas10,

I think that the difference is that Veriexec is disabled on one bundle ( the  tgz   (597.16MB) 
Checksums) , which enables you to run unsigned programs, such as programs that you develop with Python, Chef, and Puppet. The Junos Automation Enhancements include the following features:

-The factory default configuration is a Layer 3 configuration. (The standard default factory configuration on some device series is Layer 2.)
-Safeguards ensure that you cannot overwrite essential Junos OS files, including system log notifications.
-The installation automatically sets up and reserves a 1 GB user partition on your system. You can use this partition to store your binaries and additional packages.
-The user partition is not overwritten when you upgrade or downgrade the software to a OS image that does not contain the automation enhancements.

If this solves your problem, please mark this post as "Accepted Solution" so we can help others too \:)/

Regards,

Lil Dexx
JNCIE-ENT#863, 3X JNCIP-[SP-ENT-DC], 4X JNCIA [cloud-DevOps-Junos-Design], Champions Ingenius, SSYB

Thank you for the reply. I have just one related question:

How can I downgrade from package "QFX 5e Series Switch with Enhanced Automation" to "QFX 5 Series Switch with Enhanced Automation". Currently I am getting the following error.

root@****> ...8.4R2-S3-signed.tgz force unlink
Checking pending install on fpc1
Checking pending install on fpc2
 
Checking pending install on localre
Pushing bundle /var/tmp/jinstall-host-qfx-5-flex-18.4R2-S3-signed.tgz to fpc1
Pushing bundle /var/tmp/jinstall-host-qfx-5-flex-18.4R2-S3-signed.tgz to fpc2
 
fpc1:
THIS IS A SIGNED PACKAGE
ERROR: /usr/libexec/ui/downgrade: a legacy Junos installation package is required...

Thanks!

Hi

I dont think you can directly go from 5e image to 5 image on the VC.

In most cases you may have to break the VC and then individually install the junos on them with 5 image and then form the VC. 

Below is the link to do the same

https://www.juniper.net/documentation/en_US/junos/topics/task/installation/junos-software-reinstallation-preparing-qfx5100.html