Hyper-V адаптеры broadcom малая скорость

Скорость меньше 100Мбит\с у виртуальных машин на Hyper-V и пинги между виртуалками 100ms, если сетевые карты от broadcom. На самой ноде проблем со скоростью нет.

https://support.microsoft.com/en-us/kb/2986895

Нужно обновить драйвер или можно так:

If you are unable to update your network adapter driver to resolve the issue, you can work around the issue by disabling VMQ on each affected Broadcom network adapter by using the Set-NetAdapterVmq Windows PowerShell command. For example, if you have a dual-port network adapter, and if the ports are named NIC 1 and NIC 2 in Windows, you would disable VMQ on each adapter by using the following commands:

Set-NetAdapterVmq -Name "NIC 1" -Enabled $False
Set-NetAdapterVmq -Name "NIC 2" -Enabled $False
You can confirm that VMQ is disabled on the correct network adapters by using the Get-NetAdapterVmq Windows PowerShell command.

OpenVPN офисы

http://interface31.ru/tech_it/2011/09/organizaciya-vpn-kanalov-mezhdu-ofisami.html