For a project that I am currently working for, I bought a QNAP NAS (TVS-h1288X). In that project, I have multiple network cameras. On the NAS, I have a Windows 10 VM which is supposed to store all the video recorded by those cameras. The traffic generated by those cameras is huge (up to 1 Gbit per camera), hence, they require Jumbo Frames to send the video at the full frame rate. As I read on the internet, all network equipment involved needs to support Jumbo Frames and have them enabled. As far as I can see, I enabled them on all Switches and NICs that are between the cameras and the VM, but sill, packets are dropped if I set the packet size on the cameras too high.
In order to connect the Windows 10 VM to my network, I created a "Virtual Switch" on the QNAP NAS which includes both 10 Gbit NICs on the NAS and all but 1 of the 2.5 Gbit NICs on the NAS (see network architecture diagram below) and I have a feeling that this "virtual switch" is the broken link in the chain. When I go to "Network and virtual Switch" on the NAS, then on "Interfaces", then on the 3 dots next to one the 10 Gbit NICs, then on "Configure", the Jumbo Frame size selected here is 9000 (See screenshot 1 below). But when I go to "Network and virtual Switch" -> "Virtual Switch" -> 3 dots next to the virtual Switch -> "Information" -> "Hardware" it says that the MTU is still 1500 (See screenshot 2).
Since this panel only shows information and does not allow to modify it, my question is: How can I change the MTU of the virtual switch?
Screenshot 1:
Screenshot 2:
Network architecture:
Note concerning the network architecture: I am fully aware that the direct link that the Windows 10 VM has to the internet is a security risk, but rest assured: The entire setup is currently sitting in my office and is still protected by the company firewall. Once deployed, this link will be disabled.
