Hey folks,   I just want to make sure this is a viable configuration, because I've been fighting some awful strange issues that I cannot explain, and Meraki support hasn't been an enormous help.   Scenario:   MS225-48FP access stack of 4 switches, configured in the typical ring fashion. LACP from switch 1 and 4 (2 links) to a single MS425-16 (core). MS425 is the sole device as STP root (priority 0).    I am then doing root guard on core to access links, and loop guard on the other side, as well as loop guard on AP ports all across the access stack. I would imagine if there were any major problem with this setup, Meraki would complain somehow.   MS425-16 merely uplinks into my MX250. Every link in the scenario is a trunk. ... View more