NSX-T Part3 : Configuring Transport Zone and Transport Nodes

In continuation to this series, in this part I am configuring the Transport zones and Transport nodes for future configuration of logical switching and TIER1 routing.

Pre-requisites : 1600 MTU minimum on the physical network .

GENEVE is the protocol used in NSX-T. GENEVE is a UDP-based encapsulation, very similar to VXLAN, but that does not define an associated protocol using it.

More information about GENEVE is available on https://datatracker.ietf.org/doc/draft-ietf-nvo3-geneve/

Firstly, I am creating an Uplink Profile. An Uplink Profile is very similar to the “VTEP Teaming Policy” in NSX-V, however slightly different. Using an Uplink profile allow to configure once and use again and again the same policy for network adapters across multiple transport nodes.

The settings defined by uplink profiles may include teaming policies, active/standby links, the transport VLAN ID, and the MTU setting.

Quick screenshot, were I have configured the VNI pool to be used.

Click > Fabric > Configuration

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You will notice that there will be default profiles, however it’s best to create a new Uplink profile instead of using the default one.

Click > Fabric > Uplink Profiles > Add

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Screenshots below have the configuration of teaming policies and VLAN.

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Post which we need to create a new IP-Pool for IP’s to be assigned for the TEPs.

Click on Inventory > Groups > IP Pools

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The next step is to create a new Transport Zone.

Click on Fabric > Transport Zone > Add an Overlay TZ

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The overlay transport zone is used by both host transport nodes and NSX Edges. When a host or NSX Edge transport node is added to an overlay transport zone, an N-VDS is installed on the host or NSX Edge.

After the new Overlay Transport Zone is created, we need to add Transport Nodes into this Transport zone for the host which will participate in this Transport Zone.

As part of the Transport Node creation, we will also have to create a new N-VDS on these nodes.

Quick information on N-VDS:

The overlay transport zone is used by both host transport nodes and NSX Edges. When a host or NSX Edge transport node is added to an overlay transport zone, an N-VDS is installed on the host or NSX Edge. N-VDS is independent on different Transport-node and only free physical nics can be attached to the N-VDS, thus the Uplink Profile should have independent or free nics configured.

Click Nodes > Transport Nodes > Add

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Thus, continuing all the 5 ESXi host as Transport nodes in the newly created Overlay-TZ.

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Also, reviewing their operations and performance stats..

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In the next part, we will be configuring the logical switch and explain about different routing tiers in NSX-T.

Till then Happy Learning!!

 

 

 

 

 

 

 

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