I created an account just to point out that MichaelGodfrey is definitely a Microsoft employee. Leave it to Microsoft to tell us how we're doing things wrong, and they have a "better" way when there's no simple documentation or explanation about it that's easily reachable for us smaller IT shops that don't spend our entire lives inside Azure or Microsoft land. Did it occur to anyone at Microsoft that there's people who don't like or don't want to use Admin Center? No GUI= no MSPs, who sell Microsoft OSes, as their Helpdesk staff would be completely useless.
I too landed here trying to figure out what the f a SET is and how to make it after accepting delivery of a brand new 2022 Datacenter server and setting up LACP, as all of our servers and switches are setup. What a joke. Half of this article is about VMQueue performance, when ANYONE who's setup an actual physical server in the last 15 years knows that the first thing you need to do with Hyper-V is DISABLE VM Queues so the VMs actually work if you use Broadcom NICs (most widely used NICs).
I can see why vmware just sold for a pretty penny. They do LACP like a server OS should.
For anyone needing help doing it the "depreciated" way:
New-VMSwitch -Name "ExternalToNICTeam_Virt_Switch" -AllowNetLbfoTeams $true -AllowManagementOS $true -netadaptername "DefaultNICTeam-LACP"
For anyone reading this:
Cheaper switches that MSPs love to install due to ease of use such as Ubiquiti, Engenius, and I'm sure MANY others don't do Static Link Aggregation which is required for this SET stuff they're shoving down our throats to work. Now I keep getting alerts due to our monitoring showing the same IP for multiple MAC addresses.