NSX Multisite routing (diagram options)

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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
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

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

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

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Non stretched vSphere Clusters

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

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

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

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