Transport VLAN and Transport Zone

[SpencerLaV]

Hi everyone.

I have question about VLAN type Transport Zone for microsegmentation only use case.

Is there issue with assigning a VLAN on Uplink Profile that is used for the type VLAN Transport zone for microsegmentation only? With no overlay?

Example is assign VLAN on Uplink Profile (insted of leave at 0) attach that U.P. to type VLAN transport zone and use that tz for microsegmentation. What is impact? I think it will work for microsegmentation anyway even without overlay and TEP but want expert opinion.

Thank you 

[Sreec]

Transport VLAN set in the uplink profile tags overlays traffic only. If you don't have any overlay traffic requirements, don't define any VLANs. 

[SpencerLaV]

Thank u Sreec. I appreciate you take trouble to reply. Thx

But what interest me is if can work? (even though not recommend) Because if i am correct in my thinking assigning VLAN on uplink prof for non-overlay transport zone would just be ignored yes?

Does that make sense? I ask mostly to help understand true function of components etc.

Thank you again!

[Sreec]

If you have NSX-T Edge nodes, they will need connectivity with VLAN backed network for upstream connectivity and an overlay-backed network (TEP). So when you deploy the Edges you will have to point to a profile that is created for the same purpose and Edges will have external(VLAN) connectivity with segments(VLAN Tagged) peered with the physical routers. So in a nutshell, no matter what VLAN we are specifying in the Uplink profile, if there is no overlay traffic it will be of no use. 

[shank89]

To interject here, it sounds like you are wanting to perform microseg without overlay, and were just confused about what the transport VLAN was?

While yes, the transport VLAN is set in the uplink profile, and is the VLAN used for transporting the GENEVE packets from one endpoint to another.

It is also possible to perform microsegmentation on a pure VLAN only environment in NSX-T. 

 This post should assist you. https://vdives.com/2020/05/20/nsx-t-3-0-lab-micro-seg-only-deployment-wizard/