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25 Gigabit Linux internet router PC build

michael.stapelberg.ch

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Re: 25 Gigabit Linux internet router PC build

#351

Post by nix23 »

RKearney wrote: post #287
nix23 wrote: post #250

Earlier quoted context omitted.

>I'm sure the fact that Germany Sorry to disappoint you, but it not Sweden or Germany but Switzerland...Germany has bad internet too, but hey that mistake happens even to the best ones (like Bush Junior)

Not a disappointment at all. I see now that it is indeed Switzerland. The mention of the Germany based IX upgrading to 25Gbps towards the end of the article threw me off. But Switzerland has a 504% larger population density and 99.56% smaller land area as compared to the United States so my point still stands.

Is the density higher then New-York?

https://broadbandnow.com/New-York

>26.1% of New Yorkers have access to 1 gigabit broadband.

Re: 25 Gigabit Linux internet router PC build

#352

Post by teekert »

Aeolun wrote: post #349
teekert wrote: post #338

Earlier quoted context omitted.

Yeah I think this is a thing of the old days, my father in law is also always on top of light usage. Once I calculated what a 3W led cost him if he let it run the whole year (about 6€) to forget it once in a while is really no reason to get cranky. Leaving a couple of 60W incandescent bulbs on for longer periods can increase a bill indeed, but with leds it’s really not worth being know as the guy that whines about th…

I don’t really think it’s about cost for these people. There’s something about a needlessly glowing lightbulb that is just offensive to them.

Well, I agree that lights should just be turned off when not needed, it also kills their lifespan. But you don't have to be a nasty person about it :)

Re: 25 Gigabit Linux internet router PC build

#353

Post by secure »

great-potential wrote: post #29
secure wrote: post #16

Earlier quoted context omitted.

You mean 10 Gbit/s per link? Even on the 25 Gbit/s card? Where can I read more about FEC (forward error correction?) and how that affects link speeds?

Yes the transceivers recommended by Init7 (bidi-LR) do not support FEC and you'll be running in degraded mode (according to the controller datasheet), and I don't think this is something that can be achieved by coding of the transceivers.

init7 requirements are at https://www.init7.net/en/support/router-information/

The specific 25G optic is https://www.flexoptix.net/en/p-b1625g-10-ad.html?co10426=972... and indeed does not support FEC.

The remote end is a Cisco C9500-48Y4C, on which one can turn off FEC.

On the Intel side, I found https://www.intel.com/content/dam/www/public/us/en/documents..., which mentions that while No-FEC might result in “poor link quality” (sure, that’s why people use FEC), it does not say anything about degraded mode or limits to 10G.

By controller datasheet, I take it you’re referring to https://www.mouser.cn/datasheet/2/612/710_series_datasheet_v...

That document contains a state machine diagram listing 25G AUI‐RS, 25G AUI‐FC and 25G AUI‐N (in order) before the fallback to 10G SFI.

Did you misread or am I missing something?

In either case, I’ll try the card. If it won’t link at 25G, I can get a different one. Any recommendations? :)

Re: 25 Gigabit Linux internet router PC build

#354

Post by alternize »

flatiron wrote: post #168
j1elo wrote: post #157

Earlier quoted context omitted.

I've been looking at the offers of big providers and the average seems to be pretty much standard: 2 TB for $10/month. All across Dropbox, Google, Apple, even Microsoft (the individual plan) are in the same ballpark.

Google drive enterprise for $20 a month for unlimited is the best I’ve found. Rclone and encfs to mount and send the content. Almost 0 issues.

sounds intriguing for backup purposes. I was not able to find this pricing online (without contacting sales), would you have a link for this?

Re: 25 Gigabit Linux internet router PC build

#355

Post by secure »

secure wrote: post #353
great-potential wrote: post #29

Earlier quoted context omitted.

Yes the transceivers recommended by Init7 (bidi-LR) do not support FEC and you'll be running in degraded mode (according to the controller datasheet), and I don't think this is something that can be achieved by coding of the transceivers.

init7 requirements are at https://www.init7.net/en/support/router-information/ The specific 25G optic is https://www.flexoptix.net/en/p-b1625g-10-ad.html?co10426=972... and indeed does not support FEC. The remote end is a Cisco C9500-48Y4C, on which one can turn off FEC. On the Intel side, I found https://www.intel.com/content/dam/www/public/us/en/documents... , which mentions that while No-FEC might result in “poor…

The init7 CTO confirmed he’s running that same intel card and he’s getting 25 Gbit/s speeds: https://twitter.com/spale75/status/1414644121092952065

Re: 25 Gigabit Linux internet router PC build

#356

Post by great-potential »

secure wrote: post #355
secure wrote: post #353

Earlier quoted context omitted.

init7 requirements are at https://www.init7.net/en/support/router-information/ The specific 25G optic is https://www.flexoptix.net/en/p-b1625g-10-ad.html?co10426=972... and indeed does not support FEC. The remote end is a Cisco C9500-48Y4C, on which one can turn off FEC. On the Intel side, I found https://www.intel.com/content/dam/www/public/us/en/documents... , which mentions that while No-FEC might result in “poor…

The init7 CTO confirmed he’s running that same intel card and he’s getting 25 Gbit/s speeds: https://twitter.com/spale75/status/1414644121092952065

Great news! tbh I just assumed from past exprience with Intel NICs that it will negotiate to lower speed without FEC.

Personnaly I'll probably go with some cheap mellanox card on ebay :)

Re: 25 Gigabit Linux internet router PC build

#357

Post by johnwalkr »

hultner wrote: post #346
johnwalkr wrote: post #60

Earlier quoted context omitted.

I have 10G in Tokyo and I think it’s about $60 USD per month vs $40 for 2G. It’s definitely overkill but it sure is nice to download a 60GB steam game in a minute or two.

What do you use for a router? I've got 10G (price difference from 1G was even less percentage then yours) internet myself but currently just use an RB4110 as router which is the primary bottle neck. Would be nice with something reasonably priced and sized which can route 10G or close to 10G with NAT so I could utilize my uplink a bit more.

I’m still waiting for a reasonable prosumer one to come out. I’m using an intel 2 port NIC in my desktop (so only 2 devices including the desktop get 10G), and everything else is 1G.

Re: 25 Gigabit Linux internet router PC build

#358

Post by sponaugle »

542458 wrote: post #320
sponaugle wrote: post #184

Earlier quoted context omitted.

I agree with your sentiment. It is interesting to look at total power usage and power usage by device. I'm using IotaWatts to monitor every individual circuit in my house (over 200 of them), and it is easy to miss things that add up. With computers it is quite amazing the difference in power load based on cpu/disk load. When I run my PI calculator (which not only pegs CPU, but hits my SAN very hard) I see over a 1kw…

Sorry, your house has 200 circuits? Is every outlet on its own circuit or something? Maybe I’m biased because my house is old, but I’ve never heard of having that much copper in the walls.

A few different things drove up the circuit count:

(1) It is a large house ( over 10,000 sq ft ). (2) There are two power paths throughout the entire house - generator and non generator, and most panel locations have two panels for that reason. (3) There are two incoming services from the power company - A standard 400 amp service, and a second 200 amp TOU (Time of use) circuit that is primary used for EV charging. And there are 4 EV chargers, two in the upper garage and two in the lower garage. (4) There is a 16kVa UPS and circuits behind that UPS that go to a few places in the house including the server room.

Lots of cool pictures and info here: https://www.garagejournal.com/forum/threads/jeffs-mountain-s...

Re: 25 Gigabit Linux internet router PC build

#359

Post by 542458 »

sponaugle wrote: post #358
542458 wrote: post #320

Earlier quoted context omitted.

Sorry, your house has 200 circuits? Is every outlet on its own circuit or something? Maybe I’m biased because my house is old, but I’ve never heard of having that much copper in the walls.

A few different things drove up the circuit count: (1) It is a large house ( over 10,000 sq ft ). (2) There are two power paths throughout the entire house - generator and non generator, and most panel locations have two panels for that reason. (3) There are two incoming services from the power company - A standard 400 amp service, and a second 200 amp TOU (Time of use) circuit that is primary used for EV charging. A…

Holy smokes - that’s quite the house. Thank you for the reply!
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