I have a Balance 20x connected to 2x VDSL2 connections, (one connected to USB ethernet)
Is synced at around 29/5 and the other 30/7, at the moment they have similar latency to the fusionhub (around 25ms) although I’ve had it in the past where the latency difference is as much as 12ms (It depends what the DLM decides to set the interleaving profiles to on the lines and I have 0 control over that)
With Bonding mode on i’m often only seeing 35-40Mbit which seems a little low, so I’m guessing it’s either transit to the fusionhub or I need to tweak some of the settings.
Fusionhub is running on KVM and I have the build that solves the packet fragmentation issue.
Also passing IPv6 over wireguard in the tunnel which I think doesn’t help matters as IPv6 traffic as an MTU of 1350 and also looks like it’s coming from a single device.
As the lines reach their maximum speeds there is a little packetloss and my suspicion is this causes speed-fusion to backoff.
At the moment I have the modem/routers handling the PPPoE/DHCP, I did have the balance doing it but I recently changed one of the lines to Sky which requires option 61 sent in the DHCP request, the Balance 20x is in the DMZ of both routers.
Also wondering if it’s worth giving the fusionhub a 2nd vcpu.