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Adding a New Tier-1 Gateway in NSX

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OVHcloud provides you with NSX with two gateways, a north-south gateway (ovh-T0-gw) and an east-west gateway (ovh-T1-gw). You can create additional east-west gateways.

Learn how to add an east-west (Tier-1 Gateway) gateway to your NSX configuration.

Requirements

Warning

NOTE: Through your NSX interface, you can create north-south gateways. We strongly advise you not to do it because some options are not available and you will not be able to make such a gateway work correctly.

For more information on NSX at OVHcloud, please refer to our Getting Started with NSX guide.

Instructions

We will add a new east-west gateway (Tier-1-Gateways) and link it to the north-south gateway provided by OVHcloud (ovh-T0-gw).

Next, we will create a segment and attach a virtual machine to it.

Creation of the new east-west gateway

In the NSX interface, go to the Networking tab.

  • Click on Tier-1 Gateway on the left.
  • Then click on ADD TIER-1 GATEWAY.

Tier 1 - NSX add new tier1 gateway - step 1

Enter the name of your new gateway as new-T1-gw below Name and fill in these parameters:

  • Linked Tier-0-Gateway : Your north-south gateway ovh-T0-gw.
  • Edge Cluster : Your edgeXXX-X.
  • Fail Over : Non Preemptive.
  • Edge Pool Allocation Size : Routing.

Then click the Arrow to the left of Route Advertisement.

Tier 1 - NSX add new tier1 gateway - step 2

 

Select the button to the right of All Connected Segment & Service Ports if you want to connect outside this gateway, then click SAVE.

Tier 1 - NSX add new tier1 gateway - step 3

 

Click NO.

Tier 1 - NSX add new tier1 gateway - step 4

 

Your new gateway is displayed and we can see it connected to your north-south gateway (ovh-T0-gw).

Tier 1 - NSX add new tier1 gateway - step 5

 

Click Network Topology in the vertical menu bar to the left to view your network topology and to display your new new-T1-gw gateway connected to ovh-T0-gw.

Tier 1 - NSX add new tier1 gateway - step 6

Adding a segment on your new gateway

Go to Segments on the left and click ADD SEGMENT.

Tier 1 - NSX add new tier1 gateway - step 7

Fill in this information :

  • Name : Name of your segment ov3-segment.
  • Connected Gateway : Your new gateway new-T1-gw.
  • Transport Zone : Your subnet 192.168.120.254/24.

Click SAVE.

Tier 1 - NSX add new tier1 gateway - step 8

 

Click NO.

Tier 1 - NSX add new tier1 gateway - step 9

Your new segment is created and connected to your new new-T1-gw gateway.

Displaying a complete configuration with a virtual machine on your segment

The new segment is an Overlay segment but it is possible to add a VLAN segment and connect it to your new gateway.

Use our guide on Segment Management in NSX to add a new virtual machine to your new segment.

Then click Network Topology.

Tier 1 - NSX add new tier1 gateway - step 10

Conclusion

Having read this guide, you should be able to add an east-west (Tier-1 Gateway) gateway to your NSX configuration.