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What is the upgrade path for an EX9208 from JUNOS 14.2R7.5 to the latest recommended release?
Duplicate, please use the other post.
Here is the suggested standard upgrade path for EX9208 based on the release notes:
14.2R7 > 16.2 > 17.3R3 > 18.2R3 > 19.1R3 > 19.4R3 > 20.4R3 > 21.4R3
For a shorter path with fewer hops, we will provide an update in some time.
Also, please ensure all the hardware components are compatible with the recommended target release (21.4R3).
Here is the suggested upgrade path for EX9208
Option 1: Based on the release notes:
14.1R7 > 15.1R7 > 17.1R3 > 17.4R3 >18.3R3 > 19.2R3 > 19.4R3 > 20.4R3 > 21.4R3
Option 2: Based on Juniper lab testing
Please find the below upgrade path with fewer hops which has been tested in Juniper lab with baseline configuration on device without line cards.
14.1R7 > 17.4R2 > 21.4R3
We suggest using the no-validate option while performing upgrades. While using the second option with fewer hops please ensure to install the os packages wherever applicable.
It is recommended to test the upgrade in the lab before performing in production. Ensure all the hardware components are compatible with the recommended target release (21.4R3).