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Hi everybody,
I have to upgrade 2 clusters of SRX240 from 11.4R4 to 12.1X46 D65 and i want to know if i need an intermediate version and how can i upgrade the cluster safely?
Thanks in advance for your help
Regards,
Hello all,
any reply please?
Yes - you can Update directly.
However some Features do not work with ISSU since 11.4R4 is very very very old...
https://kb.juniper.net/InfoCenter/index?page=content&id=KB17946&actp=METADATA
I did the same with 11.4R10 and it worked just fine - should be the same with R4 (but you have more limitations in ISSU)
Many thanks Chris!