NSX Topology

[Marcin4]

Hello,

Is it possible to deploy NSX-T on single Cluster that have 6 ESXi hosts, without havining seperate hosts or NICs for NSX EDGE?

The Host's has: 2 pNIC 10GbE

[Marcin4]

Also works.

Can I realy have Transport Nodes Overlay and NSX Edge Networking all on one VDS with NSX-T 3.1 ??

Like that: ?

[shank89]

Try ping from a vm on the segment to another vm, just making sure they are both on different hosts.

[Marcin4]

It works perfectly.

[shank89]

I'll dig a bit deeper in the morning.

[Marcin4]

Do you have any confirmation that NSX EDGE networking and ESX Transport node interfaces can reside on the same VDS ?

[shank89]

Hi,

Please use VLAN backed segments as opposed to VDS Trunking portgroups.  My tunnels are up on the same vDS.

[Marcin4]

What I did.

1) Added my transport node to both Transport zones TZ-uplink and TZ-overlay

2) Created backed vlan segment and tagging that with 1250 (overlay vlan, same subnet and vlan as transport node)

3) I've used that segment when creating my edge node's

4) I've added my edged to Edge-Cluster

5) Checked my edge transport node status and its as follow.

I have no idea what I'am missing.

[shank89]

In total you should have 3 transport zones;

• Overlay
• VLAN
• Edge-VLANs

We separate the Edge and main VLAN transport zone so that way the host doesn't have to see all the Edge VLANs and vice versa.

Each host transport node should be assigned to Overlay and VLAN.

The Edge should be assigned to Overlay and Edge-VLAN. 

When you create the vlan backed segments, create them under the VLAN tz and then from vCenter, edit your edges and for vmnic 1 and 2 (2nd and 3rd one) assign each vlan backed trunking segment respectively.

When you create the edge uplink segments, assign them to the Edge-VLAN tz.

Hopefully this clears it up for you.

[Marcin4]

So in Summarize:

1) I create 3 Transport Zones:

• Overlay (Type overlay)
• VLAN (Type VLAN)
• Edge-VLANs (Type VLAN)

2) I create Transport Node Profile and assign that to:

• tz-overlay
• tz-vlan

3) I create new Edge Nodes and:

• Assign vmnc0(mgmt) to VDS Management PG
• create new vlack backed segments under tz-vlan puting that in vlan 0 for trunking

4) As im using one uplink policy, from vCenter i assign that vlan-backed-segment to edge node vmnic1

5) I create Edge-Uplink segments (also One as im conntecing both segments to One router) and im puting that into EDGE-Vlan transport zone

The question is, how should I assign vlan-edge-uplink segment to my edge's as it's not showing up in vCenter inventory because it's in tz-edge-vlan. ??

[shank89]

Start with correcting your vlan backed segment - vlans 0-4094.

The segments you assign to the edge-vlan tz will appear when you create the T0 interfaces.  At this point don't worry about that and just focus on getting your tunnels up.

[Marcin4]

Hello,

I've corrected my vlan-backed segment with vlans 0-4094 and it started working perfectly.

I've created vlan-edge-uplink with specyfic VLAN for my uplink v1251, and assigined it to tz-edge-vlans

I've creaed T0 interface and addresed that in vlan 1251 subnet.

And now i assume i should connect that segment in my vcenter to my edge noces vmnic2

But sadly that segment didint apear on my vCenter

[shank89]

you need to create 2 sets of segments;

• 2 for attaching to the VM on VLAN-TZ
• 2 or however many you need for uplink interfaces on the T0 - Edge-VLAN, you do not map these to any object outside of NSX

[Marcin4]

Do I really need 2 segments in VLAN-TZ  ? or one(1) in my case vlan-backed-segment is enough as im using 1 uplink nic with failover policy ??

-------------------------------------------

About T0 - Edge-VLAN

Im going to use one phys router and one uplink vlan.

As I understand im gonna need one(1) edge-uplink segment

and simply connect it to T0 external interface, without doing anything with nsx-edge01 and nsx-edge02 vms itself from vcenter, correct ?

The edge VM's networking in the end should look's for my case like that:

What is confusing for me is how the north-south connection is handled, by which network adapter ?

as:

Network adapter 1: is dedicated for management

Network adapter 2: is dedicated for overlay

[shank89]

Play around with it, both will work as long as you have uplink.

Do some reading around edge design as I think you will have more questions around that.