make load balanced by equal cost in OSPF

Hello Forum,

Anyone know of any tutorial on how to make load balanced by equal cost in OSPF?

What is happening is that the traffic only goes by one interface. Since the OSPF
is recognizing the two outputs of the link.
ospf.PNG
lab.png

It looks to me like you do have equal cost multipath routing already working, however, by default, a MikroTik will do a per-connection load-balance. If your tests with the PC are just with one TCP connection/UDP stream, the traffic will only use one path.

I believe the way to disable this behavior is to turn off connection tracking on the router with the multiple paths, however, that can result in poor performance with out-of-order packets.

If you can, use btest.exe to do a TCP receive test from “GW” with an even number of TCP sessions (20, for example) and see if they get balanced across the two paths.

If that doesn’t work, can you also post your (redacted) IP routes table, not just the OSPF route table?

ip_route_gw.PNG
ip_route_gw_2.PNG
btest.PNG

Any updates on this?

One src/destination/port combination will aways go to the same gateway, no matter if its 1 or 20 connections.
Run BW test from two different PCs to two different locations.

I think we’re looking at one source, one destination, multiple ports as depicted in the OP’s initial image.

As I mentioned one source one destination will use the same gateway, how ECMP works is described in the manual
http://wiki.mikrotik.com/wiki/Manual:IP/Route#Multipath_.28ECMP.29_routes

oh, I see. Source and destination as in end to end for the packet. I had confused that with the routing scenario. So then that wouldn’t work if I was creating a tunnel over said network using MPLS?

Example: Using UBNT Rockets setup like the OP’s diagram to deliver a PtP 150x150 service across my network.

I want to know if ospf can double bandwitdth?

? Is that true?