ExpressRoute is Microsoft's service for creating private connections between on-premises networks and Azure data centers. Unlike traditional internet-based connections, ExpressRoute uses dedicated circuits to provide more reliability, faster speeds, and lower latency.
ExpressRoute establishes a direct connection from your on-premises infrastructure to Azure through a connectivity provider. This bypasses the public internet, offering several advantages:
Connections can be established using:
| Type | Description | Use Case |
|---|---|---|
| Standard | Basic connectivity with 50Mbps to 10Gbps capacity | Development/test environments |
| Premium | Enhanced routing with global reach and 1Gbps to 10Gbps capacity | Production workloads requiring high availability |
| Local | Short-term, low-cost connections to specific Azure regions | Temporary projects or migrations |
While VPNs are suitable for many cloud connections, ExpressRoute offers better performance for:
For example, a financial institution processing thousands of transactions per second would benefit from ExpressRoute's dedicated bandwidth and consistent performance.
Many assume ExpressRoute is always more expensive than VPNs. While the entry cost is higher, the total cost of ownership often favors ExpressRoute for enterprises due to:
According to Microsoft's documentation, ExpressRoute circuits typically see 99.95% availability, higher than typical internet connections.
To set up ExpressRoute:
This process typically takes 1-2 weeks, depending on your provider and location.
ExpressRoute provides a solid solution for enterprises needing reliable, high-performance connections to Azure. For organizations with significant cloud workloads or strict compliance requirements, it offers substantial advantages over traditional internet-based connections.