Azure virtual WAN

Question

For a multi-continental region deployment what is the benefit of using -

Three virtual WAN with secured hub with two region in each subcontinent over Single virtual WAN with secured virtual hub.

Most of the MS docs diagram depicts single VWAN with multiple secured hub across the region. In my current project I am seeing two VWAN and another VWAN.

Internal trafic in secured by Firewall and internet traffic secured by NVA

Answer 1

@prasantc

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

Using multiple vWANs is completely dependent on your requirement and architecture.

Most of the MS docs diagram depicts single VWAN with multiple secured hub across the region.

• Correct.
• This is the recommended and straight forward approach as it reduces management overhead
• Any sort of connectivity can be achieved by using a single vWAN
• Refer : Any-to-any connectivity in a vWAN
• This is considered as a Global transit network architecture

Wrt having multiple vWANs,

• Only customers with multiple tenants go for this architecture
• However, Azure even supports connecting a VNet from different tenant to a vWAN in different tenant.
• Refer : https://learn.microsoft.com/en-us/azure/virtual-wan/cross-tenant-vnet

Please let me know if you require more information.

Thanks,

Kapil

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