OpenWrt Link Aggregation (bonding)

What do I need to achieve link aggregation in openwrt? TP-Link Archer C50 v4

The switch chip internally connected to cpu with 1gbps link, but eth ports are 100mbit. I need 200mbit throughput, so I think to bond 2 ports in one into "1000baseT" link with expected speeds of 200mbit. I need it for wifi 5ghz

On the otherside I have Mikrotik CRS210 with bonding prepared

200mbit is 100mbps full duplex.

yeah but these ports are 100mbps full duplex already

Just to be clear, no single connection will ever exceed 100 Mbps.

I think the user was suggesting you consider the WiFi will be consuming a (possible) total of 800 Mbps bandwidth thru the CPU (if this succeeds).

Have you reviewed the documentation or threads on the forum yet?

On top of that:

  • very few targets have hardware offloading bonding/ LAGG support (I'm not aware of any)
  • there is also the performance of the CPU for the internal switch to consider
  • only very powerful targets (x86_64) have the raw performance to profit from software based bonding
    • mt7628 with only 100BASE-T ports certainly does not

The sensible solution would be to buy a (second hand?) router with

  • native 1000BASE-T (or 2.5GBASE-T) ports
  • and the performance to actually route at those speeds (e.g. filogic, maaaybe ipq807x/ ipq60xx/ ipq50xx (if you don't need to go quite the full 1000 MBit/s); x86_64 is always an option for top performance)

You are asking too much from this very-low end device, while much better (1000BASE-T ports, even if the routing performance couldn't quite fill that out) was the norm ~15 years ago already.

Thats why im moving to x86 OPNsense abd making that tplink dumb wifi ap

This also/ already applies to 'just' AP usage, as the 5 GHz radio in your router is ~3 times faster than the ethernet side you need as wired backhaul to your router. This device is just mis-designed from the factory, coupling a 802.11ac radio with 100 MBit/s ethernet ports only (it might have been excusable for 802.11n, but not for 802.11ac).

There's funny story behind my tplink trash. I bought it in 2019 to replace my malfunctioning ADSL router provided by ISP. After it arrived, I realized WAN port is not rj11, thus not compatible. Back then I didnt know anything about networking.

Then I used onpar with Huawei ONT as wifi ap, cuz huawei got only 2.4ghz wifi and i have 100mbit up/down fiber.

Then I flashed openwrt, to find out it has only 8mb flash making it practically useless for anything serious.

Now I got Mikrotik CRS210, just to realize it doesnt have VLAN filtering hardware offload (but CPU might be enough for 1gbps).

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