Unable to perform vMotion over Overlay Network

Gokhannn Lv1Posted Mar-18-2026 20:59

Hi,

In our environment, storage LUNs are connected via Fibre Channel (FC), so we are not using or requiring a dedicated storage network.

We also noticed the following statement in the documentation:

"Applies when the overlay network interface is assigned a physical IP address."

Is there a recommended design or best practice to enable vMotion traffic over the Overlay Network in Sangfor HCI environments?

We would like to understand whether:

Overlay networks are intended only for VM-to-VM communication, or

They can also be used reliably for host-level traffic such as vMotion.

Additionally, are there any specific requirements regarding:

network separation (Overlay vs Edge vs Management),

MTU settings,

or gateway configuration?

Currently, vMotion works only over the management network, not over the overlay network.



Thanks in advance.

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Gokhannn Lv1Posted Mar-18-2026 21:02
  
Current configuration screenshots

overlay.png (47.49 KB, Downloads: 68)

overlay

overlay

interface.png (37.54 KB, Downloads: 65)

interface

interface

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