Replacing vMX100 with vMX-M

[Dyn0Pinch]

Hi,

I need to replace a vMX100 with a vMX-M (thanks Meraki!) and have reviewed the guide at vMX100 to vMX S/M/L Transition FAQ - Cisco Meraki

It all looks ok, apart from step 8 - it makes it sound so simple "Redeploy the vMX instance on AW/Azure/GCP/Alicloud/NFVIS."

Deploying this in the first place wasn't plain sailing, so I'm a bit concerned! Has anyone done this on Azure and can speak from experience? Can the new instance be deployed into the same resource group and network etc? I don't want to loose the public IP as it's used in various non-Meraki VPNs.

I have production VPNs in place I can't afford to be down for any significant length of time.

Thanks!

[PhilipDAth]

With Azure - that sounds risky.

I think I would do a side by side deployment.  Then move the site to site VPNs over to the new VMX.  Then when nothing was using the old one, delete it.

[walletman]

How did your migration go? 

What did you delete and did you keep your public IP address in the end?