[Banana Pi BPI-R4] Can you plan a wired expansion module with one 10G and four 2.5G

Banana Pi Router design BPI-R4(MT7988)
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Can you plan a wired expansion module with one 10G and four 2.5G? BPI-R4 It only needs to be responsible for wired connections.

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Then buy nice 10gig plus 2.5 gig switch?

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4 2.5G ports? Then SinoVoip needs to add a switch chip and increase the price by $30, are you willing to pay for that?

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One 10g, four 2.5s, no hesitation worth it

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Anyway, it’s worth it After all, switches with 10G interfaces are more than just that price

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We have discussed the feasibility of four 2.5G with MTK,and MTK is currently verifying it, but it will take some time.

There are also many 2xSFP+ with four 2.5G switches on the market now, such as TPlink, which can be added to R4 with fibre or DAC cable.

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Ordered this one some time ago for 38€ (black week)

https://de.aliexpress.com/item/1005005992916169.html

But have not done much tests as i need more than one 2g5 client and 10g support on R4 (rss/lro).

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Die 2x2L Schnittstelle sollte ausreichen, um gleichzeitig einen 10G Netzwerkport und vier 2,5G Netzwerkports zu erweitern

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I have one just like this but different brand, with heave load over 10 gig and aome of 2.5gig port it just works, tested it with 10 and 25 gig dac/fibers and all good. Hope next bpi r5 or 6 wilnhave 25gig ports and nice mediatek cpu with npu.

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No I disagree. An 8 port 2.5G with one 10G uplink should be less than $50 using Realtek chip. A 4 port 2.5G should be less than $30. Charging you more than that is ripping you off.

Anyway, these are the prices for a “dumb” switch. If you need managed switch using ip suite commands, then that is non-existent right now. I don’t even know anyone makes multigigabit switches with DSA capabilities. Probably Marvell Link Street will be the first.

MaxLinear has a 8 port 2.5G + two 10G managed switch chip, but that is $80 I believe. I don’t even know how the host CPU would control this chip.

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I am more curious as to when any of these CPUs would have multigigabit crypto performance. Dual 8Gbps is the maximum home Internet I could get from two ISPs, one’s PON line supports up to 40Gbps though.

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RK3588 should be able to handle 4 x 2.5G. The M7 is a good start with 2 x 2.5 G. Then just add an ASM2812 with a few more RTL8125 or I-226.

The problem there is we need to manually patch the Realtek driver to support multi-queue or use the more expensive I-226. The last time I tested it, RK3568, r2-pro could do full 2.35G routing, only using 2 cores full and other 2 cores around 33%.

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It’s pretty easy to find a mini-pcie adapter having 2 2.5g ports, if you buy 2 of them, don’t you have exactly what you need?

EDIT: this is how it shows on my bpi-r64, underperforming because it’s limited to the board’s pcie 1.1 interface:

0000:01:00.0 PCI bridge: ASMedia Technology Inc. ASM1182e 2-Port PCIe x1 Gen2 Packet Switch
0000:02:03.0 PCI bridge: ASMedia Technology Inc. ASM1182e 2-Port PCIe x1 Gen2 Packet Switch
0000:02:07.0 PCI bridge: ASMedia Technology Inc. ASM1182e 2-Port PCIe x1 Gen2 Packet Switch
0000:03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 04)
0000:04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 04)