ExpressRoute Global Reach
ExpressRoute is a private and resilient way to connect your on-premises networks to Microsoft Cloud. You can access many Microsoft cloud services such as Azure, Office 365, and Dynamics 365 from your private data center or your corporate network. For example, you may have a branch office in San Francisco with an ExpressRoute circuit in Silicon Valley and another branch office in London with an ExpressRoute circuit in the same city. Both branch offices can have high speed connectivity to Azure resources in US West and UK South. However, the branch offices cannot exchange data directly with each other. In other words, 10.0.1.0/24 can send data to 10.0.3.0/24 and 10.0.4.0/24, but NOT to 10.0.2.0/24.
With ExpressRoute Global Reach, you can link ExpressRoute circuits together to make a private network between your on-premises networks. In the above example, with the addition of ExpressRoute Global Reach, your San Francisco office (10.0.1.0/24) can directly exchange data with your London office (10.0.2.0/24) through the existing ExpressRoute circuits and via Microsoft's global network.
ExpressRoute Global Reach is designed to complement your service provider’s WAN implementation and connect your branch offices across the world. For example, if your service provider primarily operates in the United States and has linked all of your branches in the U.S., but the service provider doesn’t operate in Japan and Hong Kong, with ExpressRoute Global Reach you can work with a local service provider and Microsoft will connect your branches there to the ones in the U.S. using ExpressRoute and our global network.
ExpressRoute Global Reach currently is supported in the following places.
- Hong Kong SAR
- United Kingdom
- United States
Your ExpressRoute circuits must be created at the ExpressRoute peering locations in the above countries or region. To enable ExpressRoute Global Reach between different geopolitical regions, your circuits must be Premium SKU.
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