We have HA branch network with two Cisco router having WAN links each for connectivity to home office and for redundancy. We are planning to replace C4500 closet switch with 4 Meraki MS390 switches. Would like to seek suggestions on switches stack design. Which option would be more reliable, and provides highavaibilty and meaningful ?
1. 2 x MS390 in a stack connecting to primary router.
2. 2 x MS390 in a stack connecting to secondary router
4 x MS390 in a stack connecting to primary & secondary router.
I'd agree with @PhilipDAth that you go for one stack unless you cannot tolerate 2-3 minutes downtime when you need to do a firmware upgrade. However unless you need the advanced feature license then please don't go for MS390s, just take a look at the latest release notes posted here recently to see how many parts of the code aren't finished yet.