NSX Multisite routing (diagram options)

NSX Multisite can be designed (and implemented) in different ways. In this article I have created diagrams for the most common enterprise designs. Take a look at the six different multisite design/implementation scenarios below.

Here are some starting points that I have taken into account:

All of the Multisite Scenarios below will NOT have any stretched VLANS configured between the sites.

The two sites will not have a Round Trip Delay (RTT) Latency of more than 10 milliseconds.

Scenario 1 - 3 will be based on vSphere Stretched Clusters.
- MULTISITE SCENARIO #1: Stretched vSphere Clusters - Non stretched Edge Transport Node Clusters - 2 x T0 and 2 x T1
- MULTISITE SCENARIO #2: Stretched vSphere Clusters - Stretched Edge Transport Node Clusters - 1 x T0 and 1 x T1
- MULTISITE SCENARIO #3: Stretched vSphere Clusters - Stretched Edge Transport Node Clusters - 1 x T0 and 2 x T1

Scenario 4 - 6 will be based on vSphere Local Clusters.
- MULTISITE SCENARIO #4: Non stretched vSphere Clusters - Non stretched Edge Transport Node Clusters - 2 x T0 and 2 x T1
- MULTISITE SCENARIO #5: Non stretched vSphere Clusters - Stretched Edge Transport Node Clusters - 1 x T0 and 1 x T1
- MULTISITE SCENARIO #6: Non stretched vSphere Clusters - Stretched Edge Transport Node Clusters - 1 x T0 and 1 x T1

	MULTISITE SCENARIO #1	MULTISITE SCENARIO #2	MULTISITE SCENARIO #3	MULTISITE SCENARIO #4	MULTISITE SCENARIO #5	MULTISITE SCENARIO #6
Number of Sites	2	2	2	2	2	2
Stretched VLANs	❌	❌	❌	❌	❌	❌
Stretched vSphere Clusters	✅	✅	✅	❌	❌	❌
Single Tier-0 Gateway	❌	✅	✅	❌	✅	✅
Multiple Tier-0 Gateways	✅	❌	❌	✅	❌	❌
Single Tier-1 Gateway	❌	✅	❌	❌	✅	❌
Multiple Tier-1 Gateways	✅	❌	✅	✅	❌	✅

Stretched vSphere Clusters

MULTISITE SCENARIO 1» Stretched vSphere Clusters - Non stretched Edge Transport Node Clusters - 2 x T0 and 2 x T1

MULTISITE SCENARIO 2» Stretched vSphere Clusters - Stretched Edge Transport Node Clusters - 1 x T0 and 1 x T1

MULTISITE SCENARIO 3» Stretched vSphere Clusters - Stretched Edge Transport Node Clusters - 1 x T0 and 2 x T1

Non stretched vSphere Clusters

MULTISITE SCENARIO 4» Non stretched vSphere Clusters - Non stretched Edge Transport Node Clusters - 2 x T0 and 2 x T1

MULTISITE SCENARIO 5» Non stretched vSphere Clusters - Stretched Edge Transport Node Clusters - 1 x T0 and 1 x T1

MULTISITE SCENARIO 6» Non stretched vSphere Clusters - Stretched Edge Transport Node Clusters - 1 x T0 and 1 x T1