The Tier-0 gateway in the NSX-T Edge cluster provides a gateway service between the logical and physical network. While an NSX-T Edge cluster can back multiple Tier-0 gateways, there can be only one Tier-0 gateway per edge node.
1. Login to the user interface of NSX-T Manager.
2. On the main navigation bar, click Networking. Navigate to Tier-0 Gateways and click Add Tier-0 Gateway.
3. Enter a Name.
4. Select a high-availability mode. In the active-active mode, traffic is load balanced across all members. In active-standby mode, all traffic is processed by an elected active member. If the active member fails, a new member is elected to be active.
5. Click Save. Confirm that you want to continue configuring the Tier-0 gateway.
6. To configure route redistribution.
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- Expand Route Re-Distribution and click Set.
- Select all sources and click Apply.
- Click Save.
7. Add the uplink interfaces to the edge nodes.
- Expand Interfaces and click Set.
- In the Set Interfaces dialog box, click Add Interface and enter the settings for the uplink interfaces.
- For every interface, provide a Name, an IP address in CIDR format, select a Segment and the Edge Node to attach the interface to.
- (Optional) Change the MTU and add tags.
- Click Save.
8. Repeat the process to create all required interfaces for this Tier-0 gateway. Click Close.
9. Configure BGP.
- Expand BGP.
- Enter the Local AS.
- Configure the options.
- Click Save.
- Click Set for BGP Neighbors.
- In the Set BGP Neighbors dialog box, click Add BGP Neighbor and enter the required settings.
- Repeat the process to create all BGP neighbors.
- Click Save.
- Click Close.
10. Click Close Editing.
11. To validate that the BGP configuration works, generate a BGP summary for the Tier-0 gateway.
- In the main navigation bar, click Advanced Networking & Security.
- Select Routers and select the concerned Tier-0 gateway.
- Select Actions > Generate BGP Summary.
- Verify the Connection Status of each transport node is Established.
Victor Wu
Chief Architect, Blogger, Author at Dell EMC Knowledge Sharing & Packt
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