[Cerowrt-devel] 2.5gbit for $59

[David P. Reed]

There are small, low-TDP Intel systems for  up to ~$250 or so (including case) that use current generation Celerons with 4 2.5 GigE ports, and with the I/O bandwidth to easily support a full-on router at wirespeed on those ports.
 
I'm thinking of upgrading my entry-router (which is based on Fedora Server 36 now, not Cerowrt, just because that's my general go-to distro on x86_64 and Aarch64) from an old Celeron system with two full speed 1 GigE ports to 2.5 GigE, in advance of my expectation that 2.5 GigE DOCSIS 3.1 will become cheap enough soon at my home.
 
The problem with the low-end boards is that you need enough PCIe lanes to move packets at 10 Gb/sec bidirectionally. The contained ARM chips may be fast enough in principle, but the board and the PCIe are a bottleneck.
 
AliExpress sells such boards and also barebones, but prices and specs vary.
 
On Tuesday, May 31, 2022 8:05pm, "Dave Taht" <dave.taht at gmail.com> said:



> "LAN – 2x 2.5GbE RJ45 ports (via 2x Realtek RTL8125BG PCIe controller)
> tested up to 2.35 Gbps (Rx) and 1.85 Gbps (Tx)
> WAN – 1x Gigabit Ethernet RJ45 port (via Realtek RTL8211F) tested up
> to 941 Mbps (Tx and Rx)"
> 
> My guess is - none of these at the same time. Still... $59!
> 
> 
> https://www.cnx-software.com/2022/05/30/buy-nanopi-r5s-rockchip-rk3568-mini-router-sbc/
> 
> 
> --
> FQ World Domination pending: https://blog.cerowrt.org/post/state_of_fq_codel/
> Dave Täht CEO, TekLibre, LLC
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