Mikrotik bonding with DS918+ (Speed issue)

RouterOS Beginner Basics
1

Hi,

I try to increase my network speed between MacBook Pro - Mikrotik rb4011igs+5hacq2hnd-in - Synology DS918+.
My router (Mikrotik rb4011igs+5hacq2hnd-in) is connected with 2 Cat6 cables to my Synology DS918+. Rate 1Gbps confirmed on both interfaces.
I added a similar connection from my MacBook Pro (with 2 Ethernet to TB3 adapters) and made a virtual interface.

In RouterOS, I have used Ether 2/6 for my Synology and Ether 4/7 for my MacBook Pro.
I added 2 Bonding Interfaces and add them to my bridge. (Mode 802.3ad, layer 2 and 3).

Everything works find regarding the connection. The Link in my MacBook Pro works even if I unplug any of the cables. My DS918+ shows a network status with “2000 Mbps Full duplex”.

My problem is, that I am getting the same speed as before (1 Gbit connection).

I hope you can help me sort out this issue.

Thanks in advance!
Filip

2

Hint: Your MacBook Pro only has a single MAC & IP address.

3

The Virtual Interface on my mac is creating a new MAC address. I am receiving the IP address from the DHCP (Mikrotik).

4

Yes, but your load balancing algorithm doesn’t look deeper than L3, so one IP address == one link.

https://wiki.mikrotik.com/wiki/Manual:Layer2_misconfiguration#LAG_interfaces_and_load_balancing

You need at least L3+L4 or even balance-rr instead of 802ad (although your TCP sessions will not like the latter).