Hi there,
In addition to my previous post, I though you may be interested in couple of sample configuration as well:
> https://www.juniper.net/documentation/en_US/junos/topics/topic-map/vxlan-qfx-series.html
Configuring VXLAN in QFX5100:
https://kb.juniper.net/InfoCenter/index?page=content&id=KB30315