HCX Network Extension & Mobility Optimized Networking Diagrams

Some diagram updates I’ve been itching to knock out. Diagram set updated for Mobility Optimized Networking (released in R140).

Bonus Files:

HCX Network Extension Topology
HCX Network Extension L2 Forwarding Path
HCX Network Extension Routing Path
HCX Mobility Optimized Networking (MON)
HCX Mobility Optimized Networking – L2 Forwarding Path
HCX Mobility Optimized Networking – Local Egress at Destination


  1. Awesome diagrams Gabe!! Worth a thousand words 🙂

    I do have a question on the second last section (HCX Mobility Optimized Networking – Policy Routing via HCX NE Path) where the traffic flow between VM B to VM C (Policy Routed via HCX NE) is explained. Wouldn’t the red line finish on the VM Network Orange gateway interface on the on-prem side ( to get to VM C?

    Stay safe and healthy!



  2. Hi Gabe, is there any documentation on the function of the /32 routes injected by HCX into NSX when NE with MON is enabled? I’m trying to understand how that works internally.


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