| 21 May 2025 |
 matthewcroughan @fosdem | Like, are 5G SFPs really a thing? | 13:02:41 |
| matthewcroughan @fosdem | god, it is | 13:02:53 |
 emily | sure | 13:03:02 |
| matthewcroughan @fosdem | Only hard though without auto-negotiation | 13:03:10 |
| matthewcroughan @fosdem | if I do this trick though, I'll need 8 SFPs, for plugging into the 8 port SFP switch, which could get quite expensive | 13:03:43 |
| matthewcroughan @fosdem | whereas the less versatile setup of using that weirdo 10G SFP input 6x 10GbE output switch is only 120 quid | 13:04:28 |
| matthewcroughan @fosdem | * whereas the less versatile setup of using that weirdo 10G SFP input 6x 10GbE output switch is only 120 quid, and don't need to buy these expensive SFPs | 13:04:38 |
| emily | there are cheap ones esp if you buy multiple at once | 13:08:09 |
 antifuchs | the main issue with SFP->ethernet modules tends to be heat... those modules specifically get very warm | 13:10:19 |
| emily | not the ones with the Broadcom chip :) | 13:11:41 |
| emily | (which, yes, do get a little more expensive) | 13:11:49 |
| emily | (but they're pretty price-competitive at this point) | 13:12:10 |
| emily | but also a 10GBASE-T switch is gonna get hot regardless probably | 13:12:13 |
| emily | I'm probably going to end up buying a handful at random from AliExpress and trying to return ones that don't support the specific set of features I'm looking for since getting information from vendors is tricky… | 13:12:57 |
| matthewcroughan @fosdem | Yeah I was wondering how the hell they do this for cheap | 13:31:36 |
| matthewcroughan @fosdem | emily: okay yes the reviews for the non-sfp one say that it runs incredibly loud and hot | 14:41:05 |
| emily | told you :P | 14:42:03 |
| emily | I'd wager Broadcom 10GBASE-T SFPs, or probably many multigig SFPs, will be meaningfully cooler | 14:42:31 |
| matthewcroughan @fosdem | yeah, so the best setup would be an unmanaged SFP+ switch, with broadcom modules for better temps | 14:51:37 |
| matthewcroughan @fosdem | if not a bit pricey | 14:51:59 |
| matthewcroughan @fosdem | https://www.amazon.co.uk/SFP-Managed-VIMIN-Rackmount-Aggregation-silver/dp/B0DR2VGVBX?xpid=um6yxLoV_dAQg | 14:53:06 |
| matthewcroughan @fosdem | * https://www.amazon.co.uk/SFP-Managed-VIMIN-Rackmount-Aggregation-silver/dp/B0DR2VGVBX | 14:53:10 |
| emily | could still end up below £200. | 14:53:11 |
| matthewcroughan @fosdem | something like this | 14:53:12 |
| matthewcroughan @fosdem | eh, not really when you factor in the SFPs | 14:53:22 |
| matthewcroughan @fosdem | but if I'm making my 10G bed I need to lay in it | 14:53:30 |
| emily | like I said a quick AliExpress search turned up a $95 switch | 14:53:33 |
| matthewcroughan @fosdem | oh, I kind of want this in a timely manner and am not worried about spending an extra 30 quid | 14:53:50 |
| matthewcroughan @fosdem | but in totality, this is more expensive than just giving up and using 2.5G | 14:54:01 |
| matthewcroughan @fosdem | primarily just because of the SFPs | 14:54:16 |
