Banana PI R4 slowish upload speeds to international / far away server

Installing and Using OpenWrt
1

Hello. I started testing a Banana PI R4 a few days ago, but I’m facing slower uploads to international / far away servers. I currently have a 1gb symmetric up and down contract with my ISP . My previous configuration was a vm running on proxmox and internet access via a Leox SFP ONu attached to a managed switch and then connected to the router via Dac cable to and Intel x520.

With this configuration I get 940mbps down and around 850 to 900 up to most to international locations where i have backups and other services.
Moving to the banana PI r4 I can barely hit half of that. All I did was move to to cables around, import the config files and adjust the devices and ports accordingly ! I tried turning on and off flow control directly on Luci and directly on devices configuration ( both SFP+ ports ) and nothing. It did improve a bit using software flow control instead but nothing close of what I had before. It gets even worse if I try to sue WireGuard or tailscale. It’s doesn’t go beyond 200mbps when with x86 I get to 800mbps.

My x86 old config just for reference is on a VM on proxmox using 4 cores on a Intel 12600h and cpu barely moves so not exactly a power horse.

If anyone has any idea how to improve this it would be appreciated.
Thanks

P.S. this is all wired. I don’t have any WiFi module installed. Just the board and an nvme

2

Problems affecting long geographic distance connections with considerable bandwidth are often related to high bandwidth delay product. Mitigating this can include:

  • choice of TCP congestion control algorithm on the device/system actually sending the upload data
  • using an upstream traffic shaper on the router (a form of QoS often used to work around bufferbloat or carriers/ISPs using aggressive traffic control e.g. policing)
1 Like
3

If you can reliably achieve full wire speed to more local servers, the router itself is off the hook and bottlenecks on the ISP side (peering, etc.).

4

I know all this, but it still doesn't explain why on a x64 vm running exactly the same setup i can achieve almost full speed of what my ISP provides and suddenly on the Banana PI R4 i can't

I've triend QoS cake and it even made it worse.

5

I would make a next attempt with default Banana device settings after a reset without imported old x86 config, to first get customizations and imported config off the list of suspects.

6

I already did that. The only thing left to try is the “official” banana pi image with propriatery mediatek drivers.

7

That and older OpenWRT releases.