Hey guys, ive been playing around with a couple 912 units. using the built in 5ghz radio and a second 2.4ghz radio. Ive followed the guides here; http://wiki.mikrotik.com/wiki/Setup_Dual_Wireless_Link_with_OSPF
I find that i can disable one radio and it automatically fails over to the second, but I cant get it spread bandwidth to the second link when both are active.
I used different subnets, but kept everything else the same, do you guys have any suggestion about why that could happen?
The OSPF interfaces i made are showing down and an unknown area. Thats probably my problem right there, what did i do wrong in the guide? i created them as they said.
Since these wireless links are simplex rather than duplex, using one radio to transmit (mostly) and one radio to recieve (mostly) brings your throughput from approximately 50% theoretical throughput each way to 100% theoretical (mostly) each way. This is what people mean when they say that the setup you seem to have followed doubles throughput.
If your link is heavily biased, with most traffic going one direction, then you may do better to not set the cost of opposing links to 100. If the OSPF cost of both links is the same, they should (theoretically) load balance as you seem to want. I’ve not actually set one up that way. I don’t know if MikroTik’s ECMP (equal cost multi-path) works.
The networks on the wireless interfaces need to be listed on the OSPF networks tabs. I cannot be certain that is the problem you are facing with the OSPF interfaces showing down.
Im going to give nstream dual a go, The failover is nice, the speed is more important tho.
Let us know how that compares when you get it setup, please.