For a small size company WAN topography with just a few sites only needing class C subnets to cover the end node capacity per site, like my situation, I Love the site specific 2nd octet /16 LAN sub-net concept. Wish I would have done that many years ago when we put in VOIP... Too bad now, I would have to redo my subnets, A lot of extra work... Makes a lot of sense if one wants to break up broadcast domains via adding more vlans... i.e. back office Servers vlan, workstations vlan, VOIP vlan, IOT vlan, wireless mash vlan, segmented fiber linked vlans between out-buildings... I may plan this concept for the next network re-organization project ...
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