Hi,
Fairly new to VyOS but pretty familiar with other linux stuff. Recently installed on inexpensive Core2 Duo 3Ghz machine with 4GB ram, 2 times 1Gbit intel ethernet. Started configuring simple Vyos with Source and Destination NAT, DHCP, Simple few FW rules and so.
Everything went well in the beginning (few days) but then I experienced issues of huge performance drop. So like from speedtest of 20ms latency and 300Mbit/100Mbit to 80ms and 25Mbit/25Mbit.
Ok, I thought that maybe there is internet issue, maybe some nat is slowing or so.
Now I have eliminated (a lot of hours) like:
- Internet connection works, so if switched to other device it works and when put back to VyOS it is slow
- all switches, managed, nonmanaged tested, also cables changed
- configuration rolled back to minimum
- power saving things removed from pc bios
- reinstalled VyOS from beginning
- a lot of other
Now probably what is left is that maybe ethernet card just broke down? I’m really out of ideas how to debug the issue. Have not seen other issues than slowness and latency. I have tried to google similar issues but have not found. Why it is that +65ms? Why it shapes to almost exact 25Mbit/25Mbit? Really looks like sw issue but cant figure what is causing that.
I have tried to look from logs and eth statistics + monitoring and figuring out (learning) to understand and fix things but don’t know anymore what to look next. Oc I do not want this to be so that if it is obvious hw error then it should be replaced but the behavior looks really odd to my experience.
Any tips is welcome and will post my findings here when I solve this.
VyOS 1.3.0, Dell Optiplex 960, dualcore E8400 3GHz, 4GB Ram, 64GB SSD, Internal eth0 driver e1000e, external eth1 driver e1000. (Internet - 5G bridged - Vyos - Lan)
edit. (specs)