VXLAN - ISPs using it? List of hardware that supports offloading?

[Rudy]

Are there any ISPs terminating VXLAN tunnels on FreeBSD boxes?

My plan is to create a dozen vxlan interfaces, than add them all into a 
bridge and put my 'shared' DHCP pool on the bridge and have a shared GW 
ip on the bridge.

I noticed the Chelsio cards support VXLAN offloading.  Is that 
important?  I'm hoping to push about 5 Gbps through the box, centralize 
IPv4 management and have a mix of publicly routable and 100.64 IPs in 
the DHCP pool (first come).

If anyone has any example / tuning tips, please point me that way. I 
mostly see links related to jails / virtual machines, but I am more 
interested in tunneling remote VLANs back to the data center.

Thanks,
Rudy