Some questions for clarification. Have you tried turning auto off on ports 1-10 and forcing the connection to 100 half duplex? Does it work? Looks like something might be wrong making a full duplex link between that switch and the RB1100. Have any other equipment that is experiencing the same issues with the RB1100 ports 1-10?Problem 1 - Port Auto-negotiation.
Ports 1-10 when set to full duplex 100, they do not connect (No Link) to switch I am using (Nortel 1800) (Cross or straight cable)
Ports 1-10 DO connect when I set them to auto, but they don't have duplex.
Ports 11-12 DO connect to the switch with 100 full duplex, auto or manual set.
The port 12 tests involving the 1800 are routed, correct? Do you think the half-duplex negotiations are causing these issues? Maybe the Nortel and the RB just are not going to play nice with each other. It would be interesting to see if you have the problems with any other piece of networking equipment.Problem 2 - Speed
When Port 12 is plugged into our fiber demarc (Nortel 1800) and I plug a computer into ports 1-10 the speed is <5mbps if we are lucky
When Port 12 is plugged into our fiber demarc (Nortel 1800) and I plug a computer into port 11... Full speed
All settings remain the same between test ports, Auto, Manual, Duplex, etc...
It just feels like ports 1-10 are broken.
When I run speed tests between Mikrotik RB-450 and RB-1100 on ports 1-10 speed looks good, when I run speed tests THROUGH the RB-1100, using ports 1-10, the speed is terrible.
As for the second set of tests, I'm assuming you're routing, correct? What are the different speeds you're seeing? And when you run the tests through the router, are the two routers being tested plugged into the same 5 port grouping? 1-5 and 6-10 each have one backplane to the CPU. You'll want to have each router plugged into one group if you're testing the maximum throughput. So, plug in one into port 1 and the other into port 6 and look at the performance. You should see an improvement compared to plugging the two units into port 1 and port 2.