Load Balance doubt

[wsarahan]

Hi guys how are you?

Let me ask you something

I have here 2 links, one is 150/15 and the other is 200/100 , i use load balance at my 68U

But at the load balance page this message appears:

Load Balance optimizes resource use and maximizes throughput. Use Failover mode for better performance if the difference of bandwidth between the Primary and Secondary WAN is more than 10Mbps.

Is it real? Will i have some performance issue considering that the diference in my case is 50Mbps? And if yes why this happens?

Thanks

 

[Asmodian]

Load Balancing sends one connection out one WAN and another out the other.

This means some connections will have 150/15 while others will have 200/100. If you get the 150/15 connection your upload will be much slower. If you were to benchmark while using load balancing you could get a noticeably worse result than if you used failover with the 200/100 as primary.

Your actual experience might be better with load balancing if you don't need much upload and no single connection wants better than 150 Mbps down but the router will not be able to selectively put the connections that want upload on the 200/100 as it doesn't know which are which when they are created and you cannot move connections to another WAN after they have been created. If one connection is saturating the 150/15 new connections will go to 200/100 but the connection saturating the 150/15 will not get more bandwidth.

That message makes me worry that the load balancing algorithm assumes equal bandwidth on both WANs, this would artificially limit your upload as the router tries to keep the load equal on the two WANs instead of opening more connections on the 200/100. I am not sure how the AC68U would know that one connection was faster than the other and to open more connections on it. Hopefully someone knows if this is true on the RT-AC68U.