I tend to think you are correct.
but my test can still alleviate bandwidth issue if the limit is 300 miners out bound from his place. then throttled.
the limit may be 300 miner max to 1 address with 1 label.
if he does 290 to 1 address with 1 label
and 20 to 1 address with 1 label it could work.
this can do 9 + 9 + 9 + 9 = 36 s9's
full size
https://i.imgur.com/6E5ysLD.pngbut if you do 10 + 9 + 9 + 9 the one with 10 will have rotating dropouts.
kano.is had a 9 s9 limit.
I think ckpool did at one time.
I get at 300 he may have a large proxy
but if he is up to 320 miners
two 160 proxies could work around his issue.
he kind of mentions a work around of moving the 10 miner but I do not know were to?
Also what is his switch equipment?
what is his router?
We have 2 routers with 2 services
So we can configure easy peasy 230 units per router.
we like cisco 48 port gigabyte speed switches we get then surplus refurbished cheap.
I grabbed 10 of them they work well.