I did the mistake of enabling default config on my RB2011UiAS. It created a bridge between eth1-gateway, and LAN master ports. Which I did not pay attention to, until users started complaining about local SMB network throughput being ~60-100 KB/sec (yes lol).
After banging my head against the wall for a bit, I reset the RB2011 to defaults, put all of my LAN devices onto my 24 port switches, with only one LAN wire going from RB2011 to my switches. Everything is working wonderful now, but since curiosity killed the cat, I really want to get to the bottom of this.
Before this I parallel wired my 24 port switches with each RB2011 port, thinking by default they act as hardware switch. Big mistake. I removed the bridge completely, Slaved ETH3,4,5 to Eth 2 which now acts as a master. DHCP is being issued to Eth2 instead of the bridge. Everything seems awesome now. But Eth 3,4,5 are still not talking to Eth 2 lol. It is the same LAN, why can the computers not see eachother? I thought once you slave them, they all act as a layer 2 switch?
Also when you bridge Switch 1 and Switch 2, why is LAN transfer between Switch 1 and Switch 2 crazy slow, around 100KB/s ? All are full duplex Gbit/100Mbit connections, seems that even in CPU mode the transfer should be significantly higher. What is the highest throughtput can I expect between these 2 switches?