Global EIP Functions

Global EIP Functions

Global EIP

A global EIP can be bound to a global connection bandwidth for private communication and to a global internet bandwidth for global internet access. You can specify a global region and a global EIP pool to assign a global EIP, and bind a global EIP to an instance in any region on the cloud. To enable an ECS to communicate with the Internet through a global EIP, you also need to bind a global internet gateway to the global EIP.

Figure 1 Global EIP architecture

For details, see Global EIP Overview.

Global Internet Gateway

Before binding a global EIP to an ECS, you need to create a global internet gateway to connect the VPC of the ECS to the global EIP so that the ECS can access the Internet through the global EIP. Global internet gateways are free of charge.

When you bind a global EIP to an ECS, the system automatically lists the global internet gateway of the VPC that the ECS belongs to, if there is one.

For details, see Global Internet Gateway Overview.

Global Connection Bandwidth

A global connection bandwidth can be bound to a central network to allow the resources to communicate with each other over the backbone network.

There are different types of global connection bandwidths that are designed for different application scenarios, including multi-city, geographic-region, and cross-geographic-region bandwidths. Geographic-region and cross-geographic-region bandwidths are often bound to Cloud Connect central networks.

Geographic-region bandwidths are used for resources in a geographic region to communicate.

Cross-geographic-region bandwidths are used for resources across geographic regions to communicate.

For details, see Global Connection Bandwidth Overview.

Global Internet Bandwidth

A global internet bandwidth can be shared by one or more global EIPs at the same time, improving bandwidth utilization.

Global internet bandwidths work together with global EIPs for Internet access. You can add one or more global EIPs to the same global internet bandwidth. A global EIP and its global internet bandwidth must use the same access point.

Figure 2 Global EIP architecture

For details, see Global Internet Bandwidth Overview.