1. Meraki switches should continue forwarding indefinitely if they lose cloud access (at least as long as the license allows) 2. That's a good question. I would assume it stays running until next time it becomes cloud connected but I've never tested this (I'd say very few people have). Might be a good question for your Meraki rep. 3. You can make some changes to switchport configuration and uplink configuration. It's primarily designed is to be able to get the switch cloud connected again after a potentially incorrect configuration change - Using the Cisco Meraki Device Local Status Page - Cisco Meraki 4. Depends on what you mean... Meraki configuration that has been applied more that 30 minutes ago (and the device has not rebooted) is considered 'safe', which then has implications on what happens if it loses access to the cloud. Behavior during Connection Loss to Cisco Meraki Cloud - Cisco Meraki In terms of backing up configuration, it's not exactly a requirement given all configuration is cloud managed but there's a few tools (paid and not paid) that enable this function - IFM - Backup Meraki Config to an offine file
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