Direct Connect Gateway Overview
Direct Connect provides two types of gateways: virtual gateway and global DC gateway.
Virtual Gateway
A virtual gateway is a logical gateway that enables an on-premises data center to access a VPC over a connection. To enable an on-premises data center to access a VPC over a connection, you can associate the VPC with a virtual gateway. To access other VPCs, you can use VPC Peering or Cloud Connect to connect the VPC your on-premises data center is accessing to these VPCs.
A virtual gateway can only have one VPC associated. An on-premises data center can access the same VPC over two connections through one virtual gateway.
Global DC Gateway
A global DC gateway enables your on-premises data center to access VPCs in multiple regions so you can use a single connection to provide high-speed access to cloud compute and storage resources in any region.
A global DC gateway can be attached to different enterprise routers to build a central network so that an on-premises data center can access the VPCs in different regions over the Huawei backbone network. This reduces network latency, simplifies network topology, and improves O&M efficiency.
A global DC gateway can only be associated with connections terminated at the same Direct Connect location. If there are multiple connections terminated at different Direct Connect locations, you need to create multiple global DC gateways.
A global DC gateway can be attached to enterprise routers in different regions. This can reduce the network latency, simplify network topology, and improve network O&M efficiency.
A global DC gateway can be attached to enterprise routers in the same region for network communications. This can reduce the network latency, simplify network topology, and improve network O&M efficiency.
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