Firmware upgrade for stacked switches

[A_Vijay]

Hi Team,

How can we upgrade the stacked Meraki switch's firmware?

I just have network admin access, I don't have organization admin. Still, can I do the firmware upgrade for the switches separately, or can I do the staged upgrade with network admin access?

Can we do the manual firmware upgrade for every single switch?

[alemabrahao]

You can't, you need to be a organization admin. 

[A_Vijay]

Is it possible for the organization admin to perform the stacked core switch staged upgrade?

Is it possible to upgrade the firmware of the stacking switch without causing any downtime?

[alemabrahao · Accepted solution]

Switch Stacks

Switch stacks are treated as a single device when it comes to upgrades. That is, every switch in a particular switch stack must belong to the same upgrade group. Therefore, you assign the stack to the group rather than each switch. 

Switch stacks can be expanded in the group member list to see details about the switches that belong to that stack.

https://documentation.meraki.com/MS/Firmware/MS_Firmware_Upgrades

[Brash]

Apart from the above, another thing to note is that when upgrading stacked Meraki switches, all switches in the stack upgrade and reboot at the same time.

[A_Vijay]

We have the core switches stacked.

If the stacked switches reboot at the same time, we should have a maintenance window.

Is there any other possibility of neglecting the downtime?

[cmr]

You could have two stacks if they are L2 and stage those upgrades.  If the core is doing L3 routing then you can only have two single switches sharing the routing.  Therefore moving from one stack of four L3 switches would take you to two single L3 switches and one stacked pair of L2 switches at best.

We just take the maintenance window option.  It is only 2-3 minutes.