High Speed Network Cards with QubesOS 10Gbps+ | Question

User Support
1

Is anyone here using QubesOS with high speed network cards? I am thinking of 10Gbps -25Gbps speeds. Is this even possible with QubesOS or does the network stack of the VMs reduce the throughput severely (sys-net > sys-firewall > backupVM)?

I want to backup my QubesOS system over the network very fast. My storage server can handle 25Gbps, so I am considering adding a 25Gbps card to my QubesOS system.

Any thoughts on this? Will it work?

1 Like
2

It should work, but you’ll need to have CPU with enough cores and assign more VCPUs to the sys-net/sys-firewall/etc qubes to handle the high bandwidth.

1 Like
3

As Apparatus mentions, it should work. Also read the last post from this 2018 thread:

2 Likes
4

Is the virtual NIC not only 1gbps?

1 Like
5

No, for example, the iperf3 speed test between two qubes attached to the same sys-firewall that has 2 VCPUs will show me 3.5 Gbits/s speed with the CPU usage in sys-firewall being the bottleneck.

2 Likes