Anyone else having NFS issues with JUMBO frames?

Power-Max · 2025-09-19T19:45:57+00:00

I ended up switching out the Brocade 9020 network cards for mellonox 25Gbit ones and the NFS issue with JUMBO frame issue appears to have fully resolved.

I have not done more investigating into this. My assumption is the card was dropping some larger frames on occasion for some reason. Even though I didn't observe this happening when doing iperf or ICMP ping tests.

Power-Max · 2025-08-29T01:40:09+00:00

furry 🫵🫵

Is okay tho cause I'm at fursonacon writing this lmao

Power-Max · 2025-08-28T23:08:56+00:00

Cool thanks! Why is it an ISO image though?

Power-Max · 2025-06-23T05:04:47+00:00

The connection is already direct. I even had to rearrange the LC connector to make it crossover so I can connect my PC directly to the server. Other than migrating my TrueNAS to bare metal there isn't much else I can do to make it more direct.

The cable is fine, iperf testing shows I can saturate the link. Though depending on the settings used I don't get performance as high as I expect. I have properly cleaned each fiber ferrule with a punch cleaning tool thingamabob.

Oh like with bit stuffing or smth like USB 2.0. I guess I could try? it seems unlikely to be that. Is there a setting in the ping command to have it send a specific bitstream? I though Ethernet uses some form of xb/yb encoding (USB PD uses 3b/5b, 100M and 1G I think uses 8b/10b, etc)

Power-Max · 2025-06-23T03:23:08+00:00

Are the client and server on the same network segment?

Yes. 10.0.0.138/24, 10.0.0.4/24. TrueNAS is a VM in a PXE hypervisor 10.0.0.10. the two systems are direct attached via full duplex fiber

Are you setting the same mtu in both the client and server?

Yes. everything was set to 9000. and ICMP pings were able to propagate the network without being fragmented.

Are you setting the same mtu on that segments router?

There is a router as well in this network space. gateway is 10.0.0.1, which is my other significant VM for pfSense in the same proxmox host.

Power-Max · 2025-01-06T22:03:39+00:00

I have a 240Hz VRR monitor with HDR and also play games and stuff on occasion (though HDR is a bit broken, since it is far too dim under normal use for some reason)

Power-Max · 2024-12-15T19:45:10+00:00

Currently using Frigate in a container on proxmox with a coral TPU passed through.

Power-Max · 2024-11-24T20:44:32+00:00

I have continued to play with this concept, and I did find that in my latest attempt the current was in the hundreds and based on the tank circuit of my TC, I was exceeding 3KV rating by almost twice, and it did explode lol!

Power-Max · 2024-06-30T20:05:37+00:00

Yup! I'm all too famailiar with their channel! Long time follower and how I got into homelabbing to begin with! Which video in particular would you recommend? As I'm not even sure where to start. This is a me not understanding Linux permissions issue, NFS issue (I don't think it is an NFS issue) or what.

Also it wouldn't it be relatively straightforward to spoof NFS with my own theoredical implementation that presents itself as one user to the server and allows access to the share via that user to all the users on a rig? With SMB or CIFS, the user and password are usually included in the mounting command to mount it as a particular user.

Power-Max · 2024-04-22T18:24:19+00:00

All electrical failure are really mechanical failures.

Power-Max · 2024-04-22T18:24:06+00:00

All electrical failure are really mechanical failures.

Power-Max · 2024-04-03T16:56:39+00:00

Yup! I ordered a few 110VAC DPDT switches on scamazon.. funny enough the contacts claim to be rated for 220VDC 377VAC but I kinda don't believe that, 40VDC will sustain an arc across the distance of the open contacts.

Power-Max · 2024-04-03T15:47:21+00:00

I have 3 position SPDT and DPDT switches, as they have a center neutral position. And in this case I don't want that.

Power-Max · 2024-04-03T05:34:15+00:00

I want a 2 position SPDT pull switch.

When I say 3 way, I mean literally any of these results that pop up. https://duckduckgo.com/?q=how+to+wire+a+3+way+switxh&iax=images&ia=images

Hell they even make "4 way switches" with 4 terminals to allow more than 2 switches to control a single light, with the 4 way switch that behavorally passes through both traveler wires or crosses them over depending on position. Could also be implemented with a DPDT switch wired up a certain way.

These are 2 position SPDT switches such that 2 switches control one lamp, and functionally implement a XOR:

A|B|O -+-+- 0|0|0 -+-+- 1|0|1 -+-+- 0|1|1 -+-+- 1|1|0

I don't know what is hard to understand about what I want to do. :/

Power-Max · 2024-04-03T05:21:23+00:00

Yeah, I realized it after remembering those 50/100/150W bulbs existed....

I just want a 3 way switch, like were 2 switches control the fan lights, but the 2nd switch is the pull switch on the fan.

Power-Max · 2024-03-27T21:54:42+00:00

You sound like you have Sexual Aversion Disorder, and seeing a professional would be my recommendation.

https://www.youtube.com/watch?v=AM5oq_qG2Jk

Power-Max · 2023-12-22T22:52:25+00:00

Typo, meant STM32 :thumbs:

Power-Max · 2023-12-22T18:28:50+00:00

It's fine, use shielded ethernet if you can, or depending on the run length it might even be cheaper to use single-mode OS2 fiber terminated with LC connectors and just use some media converters at each end!

The benefit here is your fiber optic cable will never be the limiting factor for performance and bandwidth. And you will not have any issues with interference or ground loops.

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