https://www.tech-coffee.net/deploy-a-converged-network-with-vsphere-6-5/
http://buildvirtual.net/utilize-net-dvs-to-troubleshoot-vnetwork-distributed-switch-configurations/
https://www.youtube.com/watch?v=_m9PMWrIGyQ
http://nxgcloud.com/index.php/2017/03/23/nsx-home-lab-16-deploy-nsx-components/
http://www.vmwarearena.com/vmware-nsx-installation-part-8-configuring-vxlan-on-the-esxi-hosts/
https://kb.vmware.com/s/article/2081294
http://www.vmwarearena.com/how-to-manually-install-nsx-6-3-0-vibs-on-esxi-6-5-hosts/
https://vswitchzero.com/2018/09/05/manual-upgrade-of-nsx-host-vibs/
https://letsv4real.com/2017/06/06/configure-dhcp-services-in-vmware-nsx/
need to redistribute statics, including allowing default gateways to be pushed from ESG to DLR
http://www.vstellar.com/2018/05/20/configure-and-manage-routing-in-nsx/
weaker explanations https://blog.bertello.org/2015/02/nsx-for-newbies-part-6-distributed-logical-router-dlr/
older but ok http://www.routetocloud.com/2014/06/nsx-distributed-logical-router/