Combine 2 Link or Load Balancing from same LAN network without looping for higher Bandwidth

RouterOS General
1

Hello!

I have network setup in 3 step. I’m looking for solution where I need to combine 2 link (Load Balancing) from same LAN network (PPPoE IP Pool 192.168.20.1/24) to get higher bandwidth at other end. Scenario mentioned below and Network Diagram attached with this post.

  1. Site A has MikroTIk CCR 1009 with LAN IP Pool of 192.168.20.1/24 on Ether 2 and Ether 3 is Slave of Ether 2.
  2. Site B is connected with wireless link from Ether 3 - Slave - LAN / 50 Mb port.
  3. Site C is connected with Fiber Cable from Ether 2 / 20 Mb Port.

I need a solution where I want to connect SITE B and SITE C through Wireless with 20 Mb port so total combined bandwidth should be 40 Mb at SITE C (Load Balancing 20 Mb fiber + 20 Mb wireless) without LAN Looping.

What solution I can use? And what Switch or RouterBoard I can use for such a scenario? I did try bonding on RB750 but didn’t work.

Thanks in advance Team.
Network Diagram.png

2

Maybe … Just maybe you could build an EoIP tunnel over each path and bond the tunnels together. That is if you need the load balancing to happen over layer 2. If you are able to use routing you could likely do equal cost routing over both links. I would try to make it so you could do the equal cost routing approach. Bonding an EoIP seems extra hinky to me.

Are the links between sites currently layer 3 or have you bridged everything?