> macvlan lets you offload switching to the network--so more of your CPU power can go towards running VMs. Since all traffic, even that between two VMs, goes vi

> macvlan lets you offload switching to the network--so more of your CPU power can go towards running VMs. Since all traffic, even that between two VMs, goes via the external switch, that external switch can also perform auditing, accounting and policy enforcement. If you're a big enterprise with lots of expensive switches then you probably want to use them for these sorts of things, rather than push the job down to the hypervisors. The current trend is to push that to DPU/IPU-style NICs which have their own cores. Previous generation thing was to reduce CPU load on hypervisor by offloading the packet processing so (smart)NIC.