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NixOS Networking

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5 Jun 2025
@hexa:lossy.networkhexawe installed some debian to it and ran bird 1.6 probably13:51:50
@hexa:lossy.networkhexait was limited to 30k routes in hardware13:52:03
@mr.defenestrator:matrix.orgMr. Defenestrator Yea that's kinda the case with broadcom ASICs. Mellanox switches have the best open source module imo. There may be some opportunity with MikroTik whatever in that price range, but I don't touch that stuff.  14:10:10
@mr.defenestrator:matrix.orgMr. Defenestrator You should buy not only the switch, but get a colo and start a NixOS based network shop ;) 14:11:46
@mr.defenestrator:matrix.orgMr. Defenestrator
In reply to @hexa:lossy.network
it was limited to 30k routes in hardware
30k is plenty for that tier of switch IMO. If you have a Linux based BGP already, you could even do route filtering based off your flows and run a "digested" full table. I do that in production with Arista SRD
14:16:03
@mr.defenestrator:matrix.orgMr. Defenestrator If you really like extracting maximal hardware value. 14:16:05
@emilazy:matrix.orgemilyI thought people liked MiktroTik for running the actual vendor stuff but that mainline Linux wasn't really an option. could be wrong though15:27:44
@k900:0upti.meK900Usually the case yeah15:28:06
@emilazy:matrix.orgemilyfeel like I've fallen down enough of a rabbit hole already for now :)15:28:08
@k900:0upti.meK900Though Mikrotik hardware is also fairly commodity15:28:13
@emilazy:matrix.orgemilywhat kind of switch chips do they put in them?15:28:44
@emilazy:matrix.orgemilyI thought it was custom stuff but maybe I'm wrong15:28:54
@k900:0upti.meK900Usually Marvell or Realtek stuff15:29:58
@emilazy:matrix.orgemilyhm.15:30:34
@emilazy:matrix.orgemilyAIUI the Realtek chip that OpenWrt does can actually be operated by an external CPU15:30:52
@emilazy:matrix.orgemilyas in it can be a SoC with a MIPS processor, but it can also just be a "dumb" switch that you have an ARM chip talking to or something.15:31:05
@emilazy:matrix.orgemilyI believe that nobody has implemented support for that in OpenWrt/mainline, but if there's a MikroTik thing with an AArch64 CPU and that Realtek chip it could be interesting…15:31:29
@tioan:dunwyn.xyz@tioan:dunwyn.xyz left the room.19:01:58
6 Jun 2025
@uep:matrix.orgueprtl8367 seems to be the only realtek one they use recently01:45:32
@uep:matrix.orguepthere are some qualcomm (arm) and mediatek (mmips) ones with soc and small switch on the same chip01:46:23
@uep:matrix.orguepeverything that's a serious switch is marvell01:46:58
@hexa:lossy.networkhexa(within the openwrt ecosystem)01:48:15
@emilazy:matrix.orgemilyhow can I find these things? when I go to https://toh.openwrt.org/?view=network and sort by SFP+s, very little shows up. I've seen that other listings don't have stuff in that field but searching SFP in the net comments also doesn't turn up much13:24:59
@emilazy:matrix.orgemilyI'm interested in everything OpenWrt can run that has more than a handful of 10 Gbit/s SFP+13:25:21
@emilazy:matrix.orgemilyhttps://openwrt.org/docs/techref/hardware/soc/soc.marvell mostly talks about GbE (I guess the page seems fairly old)13:26:09
@emilazy:matrix.orgemilyso far I haven't been able to find clear records of OpenWrt support for anything between the XikeStor with the Realtek chip (8× SFP+) and the Mellanox monsters (a billion × QSFP)13:27:36
@emilazy:matrix.orgemilywhich I'm sure is a failure of my own searching, but you seem to know more about this than me, so… :)13:27:47
@twicetubular:matrix.orgtwiceTubular joined the room.19:13:37
@uep:matrix.orguep Err, I was responding about mikrotik when I said "they", sorry that wasn't clear. 23:41:33
7 Jun 2025
@hexa:lossy.networkhexanetdev 0x19 videos are up https://netdevconf.info/0x19/pages/sessions.html00:20:52

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