I'm trying to setup the following (quite simple) network with my Mikrotic CCR1016-12G Router, a Mikrotik CRS112-8G-4S Switch and 2 Synology NAS I configured 3 LACP 'Trunks' on the CRS112-8G-4S (with 2 x 1G ethernet ports each) to link with the CCR1016-12G and the (2) Synology NAS
On the CRS112-8G-4S I used the Switch => Ports => Trunk command
- eth1 + eth2 to connect to NAS 1 <= only tagged VLAN 2
- eth3 + eth4 to connect to NAS 2 <= only tagged VLAN 2
- sfp11 + sfp12 to connect to the CCR1016-12G <= tagged VLAN 2/3/4/5/6/88
On the CCR1016-12G I used the Interface => Bonding command with:
- Mode = balance xor
- Link Monitoring = mii
- Transmit Hash Policy = layer 2 and 3
- LACP Rate = 30 s
- MII Interval = 100 ms
For the VLAN's I used Bridge
I'm currently facing the following situation / problem:
- The (2) Trunks to the Synology NAS work just fine.
- The Trunk to the CCR1016-12G however DOES NOT WORK when I connect/use both cables/ports <= when I only use a single cable/port (regardless of which one) the connection works correctly.
- When I replace the CRS112-8G-4S by a CRS125-24G-1S-RM WITH EXACTLY THE SAME Trunk configuration, the LACP link to the CCR1016-12G works just fine with both cables/ports connected
- I tried to configure the Trunk on the CRS112-8G-4S to the CCR1016-12G on other, normal/Cu eth ports (<= iso the sfp ports).
- I upgraded the CRS112-8G-4S to RoS 7.7
I did some more testing/troubleshooting:
- When I connect the 2nd ports/cable and disable the corresponding port on the CRS112-8G-4S the link remains DOWN
- However, when I disable the corresponding port on the ccr1016-12G the link comes UP again
I had a similar setup with a CRS112-8P-4S connected with an LACP Trunk to my CCR1016-12G and this one also worked just fine
So it looks like the Trunk on the CRS112-8G-4S works differently compared to the CRS112-8P-4S and CRS125-24G-1S-RM. As there are no settings that can be changed on the Trunk of the CRS the only thing could be to change the Bonding on the CCR...
I would appreciate any suggestions / input
Thanks in advance!