ExpressRoute provides customers with dedicated network connectivity through a private connection from Microsoft Azure, facilitated by a connectivity provider (ISP). ExpressRoute offers Office 365 customers more predictable network performance. Most Office 365 network traffic can avoid the public Internet, giving you additional data privacy and delivering the benefits of public cloud while surpassing the network reliability and privacy of the Internet. You can also use multiple ExpressRoute providers to establish ExpressRoute circuits in different locations for additional redundancy and geo-resiliency.
Enjoy the scale and economics of the public cloud without having to compromise on network performance. For example, you can have a corporate intranet application running in Azure that authenticates a user using Active Directory on-premises, and serve all corporate users without ever routing through the public internet.
- Suitable for data migration, replication for business continuity, and disaster recovery.
- Securely add compute and storage capacity to an existing datacenter.
- Build applications that span on-premises infrastructure and Microsoft Azure.
- Faster speeds, lower latencies, and higher security than typical connections over the Internet.
- Connectivity to all regions within a geopolitical region.
- Virtual machines deployed in virtual networks connected to the same ExpressRoute circuit can communicate with each other.
- Establish connections to Microsoft cloud services (Azure, CRM Online, Office 365).
Create a connection between the cloud and your on-premises network in three different ways:
- Co-located at a cloud exchange. Order virtual cross-connections to Azure through the co-location provider's Ethernet exchange.
- Point-to-point Ethernet connections. Connect on-premises datacenters to Azure.
- Any-to-any (IPVPN) networks. Azure can be interconnected to your WAN to make it look just like any other branch office.
The Microsoft networking components offer a 99.9% uptime SLA, including everything from the Microsoft Data Center to the ExpressRoute router that the ISP connects to.