BGP for AWS, Azure & Google Cloud: Connecting Your Network with Direct Connect, ExpressRoute & Cloud Interconnect

Yes - AWS Direct Connect, Azure ExpressRoute, and Google Cloud Interconnect all use BGP to dynamically exchange routes over a private, dedicated connection between your network and the cloud provider's infrastructure. Instead of manually updating routes every time you add a subnet, BGP handles it automatically once the session is established, and all three services are reachable from multiple Indian data center locations, including Mumbai, Delhi, Chennai, Hyderabad, and Bangalore. 

Availability of Direct Connect, ExpressRoute and Cloud Interconnect locations changes over time. Check each cloud provider's latest location list before planning deployment.

How cloud providers use BGP

Each of these services replaces public internet routing with a dedicated, private connection, and BGP is the protocol that dynamically exchanges routes across that connection so traffic knows which way to go.

AWS Direct Connect

AWS Direct Connect has physical locations in Mumbai, Delhi, Chennai, Hyderabad, and Bangalore, typically providing connectivity into the AWS Asia Pacific (Mumbai) Region, so you don't need equipment physically in Mumbai to use it.  

Azure ExpressRoute

Supports private peering (for VNET access) and Microsoft peering (for Microsoft 365 and other Microsoft services) as separate BGP relationships. Indian peering locations exist but availability should be confirmed against Microsoft's current documentation.

Google Cloud Interconnect

Offers Dedicated Interconnect (direct physical connection) and Partner Interconnect (through a supported service provider) as two paths to the same BGP-based result.

Hybrid cloud routing

Once BGP sessions are established with each provider, your on-premises network and your cloud environments exchange routes automatically, meaning new subnets on either side become reachable without manual route updates.

Indian availability

Interconnect and Direct Connect availability in India centers around Mumbai for most providers, though partner-based connections extend reach to other cities.

Cloud BGP vs VPN

If your workload needs consistent low latency, guaranteed bandwidth, or handles sensitive data that shouldn't touch the public internet, dedicated BGP-based interconnects are worth the setup complexity. If your needs are occasional or low-volume, a site-to-site VPN tunnel is simpler and cheaper.