Delete Existing Tier-0 Gateways in Additional Instances

Since you will use the cross-instance tier-0 gateway for upstream connections, you delete the local tier-0 gateway from each additional VCF instance.

Procedure

1. In a web browser, log in to Global Manager cluster at https://active_gm_vip_fqdn/.
2. On the NSX Manager main navigation bar, click Networking.
3. Disconnect the tier-1 gateway for the NSX Local Manager.
   1. In the navigation pane, select Tier-1 Gateways.
   2. On the Tier-0 Gateways tab, click the vertical eclipses for the additional_instance_tier1_gateway and click Edit.
   3. Under Linked Tier-0 gateway, click the X to disconnect the additional_instance_tier0_gateway, click Save, and click Close editing.
      Caution: At this point any segments connected to additional_instance_tier1_gateway will be unreachable until you have finished connecting the additional instance to the cross-instance tier-0 infrastructure.
4. In the navigation pane, select Tier-0 Gateways.
5. On the Tier-0 Gateway page, click the vertical eclipses for the additional_instance_tier0_gateway and click Delete.
6. Click Delete.