[Cerowrt-devel] risc-v 2 ethernet port router

[Cerowrt-devel] risc-v 2 ethernet port router

[Dave Taht]

[-- Attachment #1: Type: text/plain, Size: 218 bytes --]

https://www.cnx-software.com/2023/05/06/lichee-pi-4a-risc-v-sbc-raspberry-pi-4-th1520-processor/


-- 
Podcast:
https://www.linkedin.com/feed/update/urn:li:activity:7058793910227111937/
Dave Täht CSO, LibreQos

[-- Attachment #2: Type: text/html, Size: 678 bytes --]

Re: [Cerowrt-devel] risc-v 2 ethernet port router

[Michael Richardson]

Dave Taht via Cerowrt-devel <cerowrt-devel@lists.bufferbloat.net> wrote:
> https://www.cnx-software.com/2023/05/06/lichee-pi-4a-risc-v-sbc-raspberry-pi-4-th1520-processor/

} Sipeed has just started taking orders for the Lichee Pi 4A (8GB RAM + 8GB
} flash) for $119.00 on Aliexpress, and the 16GB RAM version is scheduled for
} next month. Additional information can be found on the product page.

It's quite a lot of computer.  The price is not great, but if it's a Gb/s
fq_codel box you want, then it's probably fine.  I don't really like the
small form factor as a home router, btw: the cables will be heavier than the
box, and it will all fall on the floor behind the TV, where it will gather
dust :-)
I'd want a big hunk of steel that would stay where I put it, and I'm okay if it
also dissipates some heat.


Five years ago, I built a dozen OrangePIZero's with two extra USB ethernets
in a 3D printed box.  So, a total of three ethernets.  I meant to build a
hundred of them.  The most complex topology one can build with two ethernets
is a circle.  Three ethernets opens one up to all sorts of trees, etc.
This was for RFC8994 testing.   So I continue to look for ~$20 boxes that
could easily do more than two ethernets.  I don't need high speed, but it's
nice to have. I do need auto-MDX, which GbE PHYs all offer.  One reason I
didn't proceed was that I still haven't gotten beyond what I can do in
VMs. (i.e. my software is not ready)
At the time, OpenWRT did not do well with the various switch-port extensions
that got one 4-5 ethernets: they were will custom jobs, but now they are
mostly all do DSA, so a 12-port Zyxel would seem to satisfy my needs.

--
]               Never tell me the odds!                 | ipv6 mesh networks [
]   Michael Richardson, Sandelman Software Works        |    IoT architect   [
]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [

Re: [Cerowrt-devel] risc-v 2 ethernet port router

[Dave Taht]

[-- Attachment #1: Type: text/plain, Size: 2720 bytes --]

Well, I do not know if it is fq_codel capable. A lot of folk have been
missing on adding in BQL support of late, and as to whether it has the
horsepower to do SQM at these rates is undetermined - I have generally felt
gobs of cache were required to do soft rate shaping.

Secondly, you can always add a 3rd ethernet port via usb nowadays.

As for heat, unknown. I am happy to see risc-v becoming ever more capable,
I do keep hoping we will see a wifi chip built around it.

On Sun, May 7, 2023 at 9:09 AM Michael Richardson <mcr@sandelman.ca> wrote:

> Dave Taht via Cerowrt-devel <cerowrt-devel@lists.bufferbloat.net> wrote:
> >
> https://www.cnx-software.com/2023/05/06/lichee-pi-4a-risc-v-sbc-raspberry-pi-4-th1520-processor/
>
> } Sipeed has just started taking orders for the Lichee Pi 4A (8GB RAM + 8GB
> } flash) for $119.00 on Aliexpress, and the 16GB RAM version is scheduled
> for
> } next month. Additional information can be found on the product page.
>
> It's quite a lot of computer.  The price is not great, but if it's a Gb/s
> fq_codel box you want, then it's probably fine.  I don't really like the
> small form factor as a home router, btw: the cables will be heavier than
> the
> box, and it will all fall on the floor behind the TV, where it will gather
> dust :-)
> I'd want a big hunk of steel that would stay where I put it, and I'm okay
> if it
> also dissipates some heat.
>
>
> Five years ago, I built a dozen OrangePIZero's with two extra USB ethernets
> in a 3D printed box.  So, a total of three ethernets.  I meant to build a
> hundred of them.  The most complex topology one can build with two
> ethernets
> is a circle.  Three ethernets opens one up to all sorts of trees, etc.
> This was for RFC8994 testing.   So I continue to look for ~$20 boxes that
> could easily do more than two ethernets.  I don't need high speed, but it's
> nice to have. I do need auto-MDX, which GbE PHYs all offer.  One reason I
> didn't proceed was that I still haven't gotten beyond what I can do in
> VMs. (i.e. my software is not ready)
> At the time, OpenWRT did not do well with the various switch-port
> extensions
> that got one 4-5 ethernets: they were will custom jobs, but now they are
> mostly all do DSA, so a 12-port Zyxel would seem to satisfy my needs.
>
> --
> ]               Never tell me the odds!                 | ipv6 mesh
> networks [
> ]   Michael Richardson, Sandelman Software Works        |    IoT
> architect   [
> ]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on
> rails    [
>
>
>

-- 
Podcast:
https://www.linkedin.com/feed/update/urn:li:activity:7058793910227111937/
Dave Täht CSO, LibreQos

[-- Attachment #2: Type: text/html, Size: 3795 bytes --]

Re: [Cerowrt-devel] risc-v 2 ethernet port router

[Michael Richardson]

[-- Attachment #1: Type: text/plain, Size: 566 bytes --]


Dave Taht <dave.taht@gmail.com> wrote:
    > Well, I do not know if it is fq_codel capable. A lot of folk have been
    > missing on adding in BQL support of late, and as to whether it has the

I mean... at $119, if it can do fq_codel, then the price is totally
acceptable :-)

    > horsepower to do SQM at these rates is undetermined - I have generally
    > felt gobs of cache were required to do soft rate shaping.

    > Secondly, you can always add a 3rd ethernet port via usb nowadays.

Yes, it's just less elegant if you want to have 5-6 of them in a lab.


[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 511 bytes --]

Re: [Cerowrt-devel] risc-v 2 ethernet port router

[David P. Reed]

[-- Attachment #1: Type: text/plain, Size: 1785 bytes --]


Celerons and Atoms have been doing just fine with fq_codel on 1 GigE. However, the prices for 2 port boxes seems to be about $200 with RAM and enough flash to boot LInux.
 
I personally think the time has come to start using 2.5 GigE on the typical 2 port home routers, and avoid USB, as it just makes support harder - use PCIe.
 
But I'm a special case, my home lab and all of my home is 10 GigE backbone, with 2.5 GigE to the wireless APs. This calendar year, I'm moving to either 25 or 40 GigE on the backbone and in the lab, but I haven't picked the final setup. Partly it depends on what I can get from my external ISP for a reasonable price - hopefully 2 Gig or better will come here, we have many competitors (3 cable providers and various small business fixed wireless).
 
I'm wondering about how fq_codel will handle these higher speeds on inexpensive computers.
 
David
 
On Sunday, May 7, 2023 12:36pm, "Michael Richardson via Cerowrt-devel" <cerowrt-devel@lists.bufferbloat.net> said:



> _______________________________________________
> Cerowrt-devel mailing list
> Cerowrt-devel@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cerowrt-devel
> 
> Dave Taht <dave.taht@gmail.com> wrote:
> > Well, I do not know if it is fq_codel capable. A lot of folk have been
> > missing on adding in BQL support of late, and as to whether it has the
> 
> I mean... at $119, if it can do fq_codel, then the price is totally
> acceptable :-)
> 
> > horsepower to do SQM at these rates is undetermined - I have generally
> > felt gobs of cache were required to do soft rate shaping.
> 
> > Secondly, you can always add a 3rd ethernet port via usb nowadays.
> 
> Yes, it's just less elegant if you want to have 5-6 of them in a lab.
> 
> 

[-- Attachment #2: Type: text/html, Size: 3229 bytes --]