Linux Host Windows VM Huge performance boost if using Network Bridge


jimbo45

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Hi folks
If you are running a Windows VM from a Linux KVM Host then LAN and internet improvement is considerable if you use a Network Bridge (plus makes communication between Host and Guest(s) automatic too (Note this doesn't (yet) work for wireless connections but is OK when using a LAN cable to an ethernet port on a wifi extender for example).

Simplest way on say Opensuse tumbleweed for example : (as root or sudo)

1) create bridge : nmcli connection add type bridge ifname br0
2) link it to a physical ethernet device : nmcli connection add type bridge-slave ifname <your device e.g eth0 > master br0
3) disable physical lan and enable bridge : nmcli connection down "Ethernet connection 1"
4) activate bridge: nmcli connection up bridge-br0

Seemples !!!

Screenshot_20240506_103131.png

Running a test Win2022 LTSC server as guest -- no problems with Guest / Host and no need for NAT / subnets -- for home networks this is easy and simple.

Cheers
jimbo
 

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