benjojo.co.uk

benjojo posted 11 Nov 2025 22:26 +0000

Today I bought a switch for 1.2k USD, then just bought 500 USD worth of lasers for the switch.

I can totally see how the switch/router is quickly seen as cheap as compared to what you install in it.

FritzAdalis@infosec... replied 11 Nov 2025 23:18 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/gqg4K4Sp4mt6sCBf1v

@benjojo
Why use lasers?

https://www.antronix.com/products/moca-sfp

benjojo replied 12 Nov 2025 00:13 +0000
in reply to: https://infosec.exchange/users/FritzAdalis/statuses/115533618609180513

@FritzAdalis Those use a shit load of power and use cabling that is awful to route inside of a rack

FritzAdalis@infosec... replied 12 Nov 2025 00:15 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/t3S1m4QKxfqBFyLNRW

@benjojo
Have you used them? I've only known they existed for like a week.

benjojo replied 12 Nov 2025 00:17 +0000
in reply to: https://infosec.exchange/users/FritzAdalis/statuses/115533842288305512

@FritzAdalis I've seen these pop up in different channels, they hit the max MSA power draw, and they are designed for "shared access" cabling, in reality your cable ISP might not be very happy with you deploying this

My side is the rack for bgp.tools, so these these funky modem optics make very little sense

sully@splodge.fluff... replied 12 Nov 2025 12:46 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/gqg4K4Sp4mt6sCBf1v

@benjojo I think 100G LR pricing has started drifting upwards from a nice low, I actually advised a colleague that they might want to install a 100G/QSFP28 card in a server rather than 2x25G SFP+, not much of a price difference really.

benjojo replied 12 Nov 2025 13:15 +0000
in reply to: https://splodge.fluff.org/users/sully/statuses/115536795872498857

@sully Yeah thankfully(?) I am not in the 100G-LR game, I am just buying 100G-SR's that are really quite cheap!

But yeah if the 100G NIC is cheap and you might actually hit the 25G limit, yeah fuck it, why not go 100G at this point

benjojo replied 11 Nov 2025 22:28 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/gqg4K4Sp4mt6sCBf1v

Footprint $50
Power $300
Ethernet Optics $3,600
Transit $150

Someone who is good at the economy please help me budget this. my colo setup is dying

jeroen@secluded.ch replied 12 Nov 2025 10:07 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/L4NNHnRNtxDcR9bBJ2

@benjojo
@IPngNetworks any ideas for Ben? ;)

benjojo replied 12 Nov 2025 10:25 +0000
in reply to: https://secluded.ch/users/jeroen/statuses/115536170086793606

@jeroen @IPngNetworks it's just a 2nd SN2010 for bgptools so if the current one fails I'm not doomed

benjojo replied 11 Nov 2025 22:29 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/L4NNHnRNtxDcR9bBJ2

Also QSFPTEK goofy as fuck with this "goes well with"

mate it's a bunch of networking optics, not a burger

A Q S F P TEK screenshot of a checkout menu, but it lists a bunch of other items with the heading "goes well with" including patch cables (of the wrong type) and a entire switch

womble@infosec.excha.. replied 11 Nov 2025 22:39 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/lkCF1Dv1wLkc63Y985

@benjojo wait until you meet the fibre sommelier.

nicoduck@chaos.socia.. replied 11 Nov 2025 23:00 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/lkCF1Dv1wLkc63Y985

@benjojo they should include cleaners in the add-on list

fazalmajid@social.vi.. replied 12 Nov 2025 00:50 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/lkCF1Dv1wLkc63Y985

@benjojo Sir, this not a Wendy’s

WiteWulf@cyberplace... replied 12 Nov 2025 08:45 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/gqg4K4Sp4mt6sCBf1v

@benjojo I can tell it's not Cisco kit, because there's no line items for 4k USD of licenses/maintenance 😀