upgrade junos ex2200 switch

Navigate to juniper website and download junos 12.3R3.4 release package.

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Open your web browser and log in to the juniper switch

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Take a look of the current JUNOS release, it is 11.4R7.5

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Go to -> Maintain -> Software -> Upload Package and choose the downloaded package.

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We have to wait a few minutes, after that we can check the current version of JunOS
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The upgrade process to JunOS 12.3R3.4 was successful 🙂