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I'm effort to improve our network in Chicago and to prevent issues similar to what we recently observed in LA, we will be upgrading the firmware on our Juniper QFX Core and taking this opportunity to upgrade all of our access layer switches to juniper ex3300 series, replacing all of our current dell stacks. This will be performed in the evening and we expect 2-6hrs of downtime while this is performed starting at 10PM Central time.