Not able to find any formal VMware documentation - only the information depicted on many sites in the internet. Any guidance is appreciated!
These links could be helpful, some are design related, some of them implementation of Idfw Identity Firewall with NSX.
https://docs.vmware.com/en/VMware-NSX-for-vSphere/6.4/com.vmware.nsx.admin.doc/GUID-8BC71FF1-9A94-4CBD-BA95-551B0B2266FA.html
https://docs.vmware.com/en/VMware-NSX-for-vSphere/6.2/com.vmware.nsx.admin.doc/GUID-F37BEF98-3661-447E-A721-C40C589E9F57.html
http://www.routetocloud.com/2016/11/nsx-identity-firewall-deep-dive/
http://www.i-1.nl/blog/?p=57953
https://advizex.com/2017/12/14/nsx-blog2/
https://www.viktorious.nl/2015/01/27/identity-based-firewalling-vmware-nsx/
http://virtual10.com/?p=1659
https://www.youtube.com/watch?v=ub9Rqdty4T8
https://www.youtube.com/watch?v=o8SNEp-8NjY
https://www.youtube.com/watch?v=hUiLPcF7uFk
Thank you so much!