Bandwith Problem Mikrotik to Mikrotik using Airfiber Links

I have a big problem I’m running this scenario

Site A :CCR Ver 6.28 with and AirFiber linking to Site B

Site B : Rb1100xa Ver.5.20 with and AirFiber Linking to Site A


Wen i do a BT on Site B receiving from Site A i only get 10MB to 60MB

Wen i do a BT on Site A Sending to Site B i only get 10MB to 60MB

But wen i do a BT on Site B sending to Site A i get 400MB+

and also wen i do a BT on Site A Receiving from Site B i get 400MB

I also have same scenario on another site Linking with another airfiber from Site B

Anyone?

Are you sure actual AirFibers link capacity is symmetric?

Yes!

Are there any queues set up on the mikrotiks? can you check the log for ethernet interfaces negotiated rates?

Could you post screenshots of both airfibers status?

Before proceeding with the tests. Maybe try updating the firmware on router site B. As this seems to be the common problem and maybe a firmware issue.

i can try that updating , but its weird , also i have a SITE C that is connected to SITE B and wen i do the BT From C to B i also have the same problem BUT wen i do the BT from site C to Site A i have 300up and 300down .. really weird
AIRFIBER.JPG
Diagram.jpg

When you connect Site C to Site A is it going through Site Bor is there a switch at Site B.
This is looking very much like a firmware issue or a problem with Site B router. Can you confirm what speed your ports are set to on Site B. It may be worth while upgrading all to 6.29 and running the new fastrack feature.

Site A - CCR 6.28 Ether 1 has Airfiber to Site B

Site B Rb1100xa Ver 5.20 - Ether 1 has Airfiber to SITE A
Ether 2 has Airfiber to Site C

Site C Rbx86 ver 5.20 - Ether1 has Airfiber toSite B

Every router is doing OSPF , and yes Site C connects trough site B

I second dgnevans, guess there’s a reason for that router not to be upgraded to 6.x? Can you check its firmware? (System > Routerboard)