[Cerowrt-devel] Minirouter with pi compute module 4

[Cerowrt-devel] Minirouter with pi compute module 4

[Matt Taggart]

This looks like an interesting router candidate

https://www.seeedstudio.com/Dual-GbE-Carrier-Board-with-4GB-RAM-32GB-eMMC-RPi-CM4-Case-p-5029.html

Description says:
* one NIC is Broadcom BCM54210PE (from the CM4)
* the other is "Microchip's LAN7800" behind usb3
* 2 additional usb3 ports
* the usb3 uses the CM4's PCIe 2.0 x1 (500MB/s)
* wifi/BLE is the CM4's onboard, I think "Cypress CYW43455"?

It sort of reminds me of the Espressobin device from a few years back, 
but much faster and the pi has a much larger installed base, better 
support, etc.

-- 
Matt Taggart
matt@lackof.org

Re: [Cerowrt-devel] Minirouter with pi compute module 4

[Dave Taht]

I am sadly re-discovering there is not a single device on the market
outside the x86 universe that can actually forward a gbit in both
directions at the same time.


On Thu, May 19, 2022 at 1:36 PM Matt Taggart <matt@lackof.org> wrote:
>
> This looks like an interesting router candidate
>
> https://www.seeedstudio.com/Dual-GbE-Carrier-Board-with-4GB-RAM-32GB-eMMC-RPi-CM4-Case-p-5029.html
>
> Description says:
> * one NIC is Broadcom BCM54210PE (from the CM4)
> * the other is "Microchip's LAN7800" behind usb3
> * 2 additional usb3 ports
> * the usb3 uses the CM4's PCIe 2.0 x1 (500MB/s)
> * wifi/BLE is the CM4's onboard, I think "Cypress CYW43455"?
>
> It sort of reminds me of the Espressobin device from a few years back,
> but much faster and the pi has a much larger installed base, better
> support, etc.
>
> --
> Matt Taggart
> matt@lackof.org
> _______________________________________________
> Cerowrt-devel mailing list
> Cerowrt-devel@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cerowrt-devel



-- 
FQ World Domination pending: https://blog.cerowrt.org/post/state_of_fq_codel/
Dave Täht CEO, TekLibre, LLC

Re: [Cerowrt-devel] Minirouter with pi compute module 4

[David P. Reed]

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Dave -
I'm certain that I have non-x86 devices that can forward more than a gbit/sec in both directions. If only because I have a very nice system based on LS2160A ARM implementation that I use to forward 10 GigE traffic in both directions. Though the packets are not tiny. It's not cheap, of course. I am running Fedora server on it in my lab. The LS2160A carrier comes from a company called SolidRun.
 
I do understand that many of the low end ARM boards (and maybe even the Pi4 Compute Module) have driver/bus weaknesses.  Have you tried to understand what the issues are? Could be Linux kernel and driver issues specific to the GigE hardware. Though I'd assume that USB 3.1 would not inherently get in the way.
 
I currently use a Celeron board with 2 1 GigE interfaces for my 1Gig cable connection, running Linux configured according to my preferences. As you say, x86 boards and PCIe ethernet interfaces tend to be fine with two 1 GigE ports.
 
So maybe you want to be a bit more specific about what you mean "device on the market"?
 
On Thursday, May 19, 2022 2:46pm, "Dave Taht" <dave.taht@gmail.com> said:



> I am sadly re-discovering there is not a single device on the market
> outside the x86 universe that can actually forward a gbit in both
> directions at the same time.
> 
> 
> On Thu, May 19, 2022 at 1:36 PM Matt Taggart <matt@lackof.org> wrote:
> >
> > This looks like an interesting router candidate
> >
> >
> https://www.seeedstudio.com/Dual-GbE-Carrier-Board-with-4GB-RAM-32GB-eMMC-RPi-CM4-Case-p-5029.html
> >
> > Description says:
> > * one NIC is Broadcom BCM54210PE (from the CM4)
> > * the other is "Microchip's LAN7800" behind usb3
> > * 2 additional usb3 ports
> > * the usb3 uses the CM4's PCIe 2.0 x1 (500MB/s)
> > * wifi/BLE is the CM4's onboard, I think "Cypress CYW43455"?
> >
> > It sort of reminds me of the Espressobin device from a few years back,
> > but much faster and the pi has a much larger installed base, better
> > support, etc.
> >
> > --
> > Matt Taggart
> > matt@lackof.org
> > _______________________________________________
> > Cerowrt-devel mailing list
> > Cerowrt-devel@lists.bufferbloat.net
> > https://lists.bufferbloat.net/listinfo/cerowrt-devel
> 
> 
> 
> --
> FQ World Domination pending: https://blog.cerowrt.org/post/state_of_fq_codel/
> Dave Täht CEO, TekLibre, LLC
> _______________________________________________
> Cerowrt-devel mailing list
> Cerowrt-devel@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cerowrt-devel
> 

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