since 21.02 it's possible to run OpenWrt on a Switch (Realtek Target) which sounds like a great idea to me.
Will the switching capacity be slower than with the stock firmware?
What would be the performance if I would let the device act as a Layer 3 Switch?
I would really love to get my hands on a 10G Switch that has at lest 4 SFP+ Ports.
Does someone of you have an estimation on how probable such a scenario might be?
Wow, that is better news than I would have expected.
What Zyxel Switches are referred here? Is it the XGS4600 series?
Cannot find too much information about what SoC are being used.
I think the XGS1250-12 is also partially supported, asked bkobl about it earlier this month, and quoting the Biot wiki here:
RTL930x: mostly complete
RX/TX by the Ethernet driver works, all L2 functionality is implemented. QoS and Rate control is missing, there is no support for the SFP+ cages. PHY support: RTL8218D works and RTL8266 2.5-gig PHY. The Aquantia multi-gig phys are unsupported (upcoming Zyxel XGS1250-10), but GPL code available. GPIOs and LEDs are supported.