Cloud anywhere:
Azure for hybrid and multicloud environments
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ExpressRoute with VPN failover
This option combines the previous two, using ExpressRoute in normal conditions, but failing over
to a VPN connection if there is a loss of connectivity in the ExpressRoute circuit. This architecture is
suitable for hybrid applications that need the higher bandwidth of ExpressRoute, and also require
highly available network connectivity.
• Benefits: High availability
• Challenges: More complex to configure than a VPN connection, as both external links
must be configured; requires redundant hardware and connections; more expensive
Virtual WAN
For companies with branch offices, Azure Virtual WAN can link those sites with optimized and
automated network connectivity to, and through, Azure. Azure Virtual WAN brings together
many Azure cloud connectivity services such as site-to-site VPN, user VPN (point-to-site), and
ExpressRoute into a single operational interface, enabling global transit network architecture
based on a classic hub-and-spoke connectivity model.
Read more about Virtual WAN here: https://azure.microsoft.com/services/virtual-wan/
