---
title: "Adding a New Tier-1 Gateway in NSX"
description: "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 ga"
url: https://docs.us.ovhcloud.com/en/hosted-private-cloud/vmware/nsx-add-new-tier1-gateway
lang: en
---
> For AI agents: the complete documentation index is available at https://docs.us.ovhcloud.com/en/llms.txt, the full documentation bundle is available at https://docs.us.ovhcloud.com/en/llms-full.txt.

# Adding a New Tier-1 Gateway in NSX

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

- Being an administrative contact of your [Hosted Private Cloud infrastructure](https://us.ovhcloud.com/hosted-private-cloud/vmware/) to receive login credentials.
- A user account with access to the [OVHcloud Control Panel](https://manager.us.ovhcloud.com/#/hub).
- Having **NSX** deployed.

**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](https://docs.us.ovhcloud.com/en/hosted-private-cloud/vmware/nsx-first-steps.md) 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`.

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**.

 

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

 

Click `NO`.

 

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

 

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**.

### Adding a segment on your new gateway

Go to `Segments` on the left and click `ADD SEGMENT`.

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`.

 

Click `NO`.

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](https://docs.us.ovhcloud.com/en/hosted-private-cloud/vmware/nsx-segment-management.md) to add a new virtual machine to your new segment.

Then click `Network Topology`.

## Conclusion

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