When I started out with my current role, we had 200+ switches, primarily cisco, daisy chained off of one core. I have been able to make a little progress so far and break it up into 4 L3 zones of sorts. Endgame though, I don't know if I should be looking at progressing towards 200+ L3 sites.
Background: We have direct fiber connection to locations spread out mostly between 1000 ft to 2 miles in spacing with some runs upwards of 8 mi. Each location we have a switch at has 3-4 monitoring devices (CCTV, wifi, radar, etc). Because this has been built over many years we have connection lines over SM between main points of interest with MM broken out between them leading back to the main points as such: https://imgur.com/Idx1PRU. The main network logically looks somewhat like this: https://imgur.com/YL82LZC which still has a ton of chaining going on, not to mention all of the smaller locations on MM between these that aren't shown. However, because of the way the switches are laid out in the field, there are ample places for redundant connections: https://imgur.com/OLPTCtn.
I am trying to reconfigure as we update, but was thinking to try and find a good replacement for these original 2960s , 14ish years old, with maybe a 4 to 8 port router with SM SFPs instead of the 2960C or L of and turning this into a giant web of OSPF with 8 or 16 blocks of IPs. At the very least, I am going to add some more L3 zones and chop down some of the long runs, but want to make sure a long range plan is intact before i go to far with modifying fiber breakouts.
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