About neutron_hyperv_agen vs open vSwitch

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Hi~

I install HyperVNovaCompute_Liberty_12_0_0.msi on windows server 2012 R12
my openstack neutron network type is set gre.

but it seems neutron_hyperv_agent does not support gre or vxlan network type.
So I also install openvswitch-hyperv-2.6.1 and config ovs followed by your blog
In one step, I need to use ovs.exe to add-br and port.
In my thinking, only network node need to setup the bridge.

so my question is, windows hyperv compute node is include compute role and network role ?

thanks~