Azure ExpressRoute lets you create private connections between your on-premises infrastructure, such as your data center or office, and Azure datacenters. These are dedicated, private network connections, not traversing the public internet. This offers more reliability, faster speeds, lower latency…Azure ExpressRoute lets you create private connections between your on-premises infrastructure, such as your data center or office, and Azure datacenters. These are dedicated, private network connections, not traversing the public internet. This offers more reliability, faster speeds, lower latency, and higher security than typical internet connections.
Instead of going through the public internet, ExpressRoute uses connectivity providers. These providers establish the physical connection to Azure through your existing network. Different connectivity models exist, including colocation at a carrier-neutral exchange, point-to-point Ethernet connections, and virtual cross-connections through your network provider.
Key benefits include enhanced security due to private connectivity, predictable network performance with guaranteed bandwidth, and consistent network latency. It’s ideal for scenarios requiring high bandwidth, low latency, and predictable performance, such as large data transfers, disaster recovery, and extending on-premises applications to Azure.
ExpressRoute supports various bandwidth options and allows you to connect to multiple Azure regions through a single connection. Cost implications include port fees charged by the connectivity provider as well as Azure charges for the ExpressRoute circuit. Be aware of the differences in local and premium ExpressRoute which affects regions you can reach.
ExpressRoute Circuit Provisioning States
Important States to keep in mind within Express Route are:- **Not Provisioned:** This is a state when an ExpressRoute resource is created on Azure; however, no circuit has been provisioned with a connectivity provider.- **Provisioning:** The Connectivity Provider is in the process of provisioning an ExpressRoute service and the resource is being configured to get access to it.- **Provisioned:** Indicates that the circuit and the connection has been fully built, but this does not mean that the line-up is active, because that is determined by the Layer 3 Configuration Status.- **Enabled:** The final state means that all the configurations have been accepted, it's operational and you can start utilizing it.