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Poor speeds from my home server (lemmy.world)

submitted 7 months ago by [email protected] to c/[email protected]

34 comments fedilink hide all child comments

So I am trying to track down what is possibly slowing down my download connection from my Debian server to my devices (streaming box, laptop, other servers, etc).

First let me go over my network infrastructure: OPNsense Firewall (Intel C3558R) <-10gb SFP+ DAC-> Managed Switch <-2.5gb RJ45-> Clients, 2.5gb AX Access Point, and Debian Server (Intel N100).

Under a 5 minute stress test between my laptop (2.5gb adapter plugged into switch) and the Debian Server (2.5gb Intel I226-V NIC), I get the full bandwidth when uploading however when downloading it tops out around 300-400mbps. The download speed does not fair any better when connecting to the AX access point, with upload dropping to around 500mbps. File transfers between the server and my laptop are also approximately 300mbps. And yes, I manually disabled the wifi card when testing over ethernet. Speed tests to the outside servers reflect approximately 800/20mbps (on an 800mbps plan).

Fearing that the traffic may be running through OPNsense and that my firewall was struggling to handle the traffic, I disconnected the DAC cable and reran the test just through the switch. No change in results.

Identified speeds per device:

Server: 2500 Mb/s
Laptop: 2500Base-T
Switch: 2,500Mbps
Firewall: 10Gbase-Twinax

Operating Systems per device:

Server: Debian Bookworm
Laptop: macOS Sonoma (works well for my use case)
Switch: some sort of embedded software
Firewall: OPNsense 24.1.4-amd64

Network Interface per device:

Server: Intel I226-V
Laptop: UGreen Type C to 2.5gb Adapter
Switch: RTL8224-CG
Firewall: Intel X553

The speed test is hosted through Docker on my server.

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[–] [email protected] 6 points 7 months ago* (last edited 7 months ago)

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

Fewer Letters	More Letters
IP	Internet Protocol
NVMe	Non-Volatile Memory Express interface for mass storage
SCP	Secure Copy encrypted file transfer tool, authenticates and transfers over SSH
SSD	Solid State Drive mass storage
SSH	Secure Shell for remote terminal access
TCP	Transmission Control Protocol, most often over IP

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