Posted by Tier-0 Gateway (also known as Tier-0 Logical Router): interfaces with the physical network and exchange routing information with external routers via static routing or eBGP. In active-standby mode, the gateway can also provide stateful services.
The Tier-0 router performs gateway services between overlay and non-overlay hosts (for example, a physical server or the Internet router).
There can be only one Tier-0 gateway per Edge node
The SR component of the NSX-T Tier-0 Logical Router is responsible for establishing eBGP peering with the leaf switches and enabling North-South routing.
How to deploy T0 GW
First if you have not already done so we need to create an uplink segment
These segments will be used by the T0 to connect to the upstream physical router
Provide a name
select your VLAN TZ
Save
Rinse and repeat for your second uplink
Now we move on to creating the T0 GW
Click tier-0
Must provide a name
Select your edge cluster previously created
Save
Yes
Set
Add interface
Provide the name of the uplink
Enter the IP and mask
Connected segments select the new uplink segment
Select an edge node previously created
Save
When finished
Next we need to configure out BGP neighbor
Set Local AS
Set
Add BGP neighbor
Enter IP address
Remote AS number
Source IP
Ensure both connections are in successful status
Save
Set
Add
Add a name then clickset
Choose your T0 and T1 routes you want to redistribute
Apply
Save