Azure ExpressRoute

Azure ExpressRoute provides a private, dedicated connection between your on-premises infrastructure and Azure, bypassing the public internet entirely. It delivers higher bandwidth, lower latency, and more consistent performance than VPN connections, making it the preferred choice for enterprise hybrid networking.

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What Is ExpressRoute?

ExpressRoute establishes a private link between your data centre (or colocation facility) and Azure through a connectivity provider (such as Equinix, Megaport, or BT). Traffic never crosses the public internet.

On-premises data centre
        |
  Connectivity Provider (e.g. Equinix)
        |
  Microsoft Enterprise Edge (MSEE) routers
        |
  Azure VNets, Microsoft 365, Dynamics 365

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Key Benefits

Benefit	Description
Private connectivity	Traffic stays on the provider's and Microsoft's private network.
Consistent latency	No internet variability; predictable, low-latency performance.
High bandwidth	Circuit speeds from 50 Mbps to 100 Gbps.
SLA	99.95% availability SLA (99.99% with ExpressRoute Direct).
Access to Microsoft services	Reach Azure, Microsoft 365, and Dynamics 365 over a private path.
No data cap	Unlimited data transfer option available.

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Connectivity Models