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5 Jun 2025
@steeringwheelrules:tchncs.de@steeringwheelrules:tchncs.de joined the room.11:14:49
@mr.defenestrator:matrix.orgMr. Defenestrator
In reply to @emilazy:matrix.org
I spent so long looking at switch stuff Linux supports and the intersection of (mainline Linux support, chip is actually in normal switches you can buy, >1 Gbit/s, <$5k) seems so empty
You'd be surprised. Anything vaguely supported by DentOS/SONiC is capable of running a Linux control plane at the very least. I just sold off the last of our Celestica switches at $149 ea. Had 5 running another Linux distribution. `mlxsw` is great, and while the switches are a little more pricey, it's basically turnkey to have an ASIC backed switch capable of running NixOS, or whatever.
13:20:53
@mr.defenestrator:matrix.orgMr. Defenestrator https://www.ebay.com/itm/236114008551
https://blog.benjojo.co.uk/post/sn2010-linux-hacking-switchdev
13:26:29
@emilazy:matrix.orgemilyyeah, I saw this. but while it's still incredible hardware for $1k, it's hard to justify vs. $120 MIPS consumer switches off AliExpress you can run OpenWrt on13:30:04
@emilazy:matrix.orgemilythough $149 is of course a lot more appealing and perhaps I am just bad at finding the relevant models?13:30:50
@emilazy:matrix.orgemilywhen you say "Linux control plane" though, are we talking mainline? because it seems these Celestica things are Broadcom, and my understanding was that the Broadcom switch stuff was basically totally useless on mainline without a pile of proprietary blobs.13:31:52
@raitobezarius:matrix.orgraitobezariusi think SN2700 can be sniped for 400 to 500 bucks in some cases fwiw13:34:34
@raitobezarius:matrix.orgraitobezariusbut may still be too high above 120 USD I guess13:34:41
@tom:dragar.deTomPower Consumption is probably also slightly different between both of those options 😅13:37:14
@raitobezarius:matrix.orgraitobezariusyeah and transreceivers are not in the same price range as well13:37:52
@raitobezarius:matrix.orgraitobezariusespecially if you want to do long range13:37:56
@raitobezarius:matrix.orgraitobezariussame for NICs, etc.13:38:01
@emilazy:matrix.orgemilyI thought those things had 10 Gbit/s ports? maybe I was imagining that.13:38:27
@raitobezarius:matrix.orgraitobezariusSN2700 is 32x100G13:38:42
@raitobezarius:matrix.orgraitobezariusthe aliexpress thing yes13:38:49
@emilazy:matrix.orgemilybut yeah as fun as it would be to play with it doesn't really serve the home use-case so much13:38:49
@raitobezarius:matrix.orgraitobezariusmaybe SN2010 has 10G13:38:53
* @raitobezarius:matrix.orgraitobezarius looks at his home13:39:12
@raitobezarius:matrix.orgraitobezariusyeah i guess13:39:13
@mr.defenestrator:matrix.orgMr. Defenestrator Yea I saw '<5k' and thought typical prosumer stuff. Some ubiquiti home networks hit above that price range lmao 13:39:49
@mr.defenestrator:matrix.orgMr. Defenestrator Yea the mlxsw supported switches start at 25Gbe I think, its a more recent ASIC, so that also explains the price. 13:40:28
@emilazy:matrix.orgemilywell I'm open to being memed into buying something horrendously excessive but beyond three digits is a fairly hard sell :P13:42:06
@emilazy:matrix.orgemilyI'd be up for Ubiquiti-level prices if it means mainline Linux / no blobs13:42:44
@mr.defenestrator:matrix.orgMr. Defenestrator
In reply to @emilazy:matrix.org
when you say "Linux control plane" though, are we talking mainline? because it seems these Celestica things are Broadcom, and my understanding was that the Broadcom switch stuff was basically totally useless on mainline without a pile of proprietary blobs.
Yea a recent kernel at least. But it will need blobs, of course
13:44:33
@mr.defenestrator:matrix.orgMr. Defenestrator
In reply to @raitobezarius:matrix.org
yeah and transreceivers are not in the same price range as well
It's more about the fiber tbh. I have dozens of 40G transceivers that all require MPO. Bought for $4/ea. Any cable will cost $50 minimum. The CWDM optics are just hard to find.
13:46:01
@raitobezarius:matrix.orgraitobezariusi have the opposite problem13:46:39
@raitobezarius:matrix.orgraitobezariusi have stupid amount of CWDM 100G optics almost for free13:46:46
@raitobezarius:matrix.orgraitobezariusbut long range is not cheap13:47:11
@hexa:lossy.networkhexauhh, I think we tried one out in 201813:49:24
@hexa:lossy.networkhexasn2100 possibly? 🤔13:49:55

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