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Use Express Connect to achieve nearby access and one-point access to global resources

Last Updated: Feb 11, 2018

Overview

Express Connect helps you build high-quality and high-reliability intranet communication between on-premises IDCs and VPCs in different regions of Alibaba Cloud. Express Connect has the following key features:

  • VPC interconnection

    Express Connect supports intranet communication between two VPCs regardless of their regions and accounts. Same-region VPC interconnection is free of charge.

    Alibaba Cloud creates a Router interface on each VRouter of the two VPCs, respectively, to achieve secure, reliable, fast, and convenient communication between the two VPCs. For more information, see VPC interconnection.

  • Physical access

    You can use a leased line to physically connect your on-premises IDC to Alibaba Cloud, and create a VBR and router interfaces to achieve communication between the on-premises IDC and a VPC in Alibaba Cloud. For more information, see Physical access.

Nearby access

When using a leased line to connect an on-premises IDC to a VPC, you only need to select an access point nearest to the on-premises IDC, and do not need to build a physical line between the on-premises IDC and the VPC.

You can obtain information about access points through The map about Express Connect or Leased line access points on the Express Connect console. If there is an access point in the city where the on-premises IDC is located, you can directly apply for leased line access to the access point.

If there is no access point in the city where your on-premises IDC is located, you can select a nearby access point and establish connection between the on-premises IDC and the access point.

For example, a user has an on-premises IDC in Beijing and an on-premises IDC in Tianjin, respectively, the user can achieve physical access through the following methods:

  • Because there is an access point in Beijing, the user only needs to connect the on-premises IDC in Beijing to the Alibaba Cloud Beijing access point.

  • Because there is no access point in Tianjin, but the on-premises IDC is near to the Alibaba Cloud Beijing access point, the user can use a leased line to connect the on-premises IDC in Tianjin to the Alibaba Cloud Beijing access point.

Note: In the following figure, only the lines in orange need to be constructed by a carrier.

1

Access global resources from one point

By connecting to any one access point, you can connect your resources to Alibaba Cloud VPCs around the globe through the access point.

For example, a user wants to connect an on-premises IDC in Beijing to a VPC in Beijing and a VPC in Shenzhen through physical access. The user only need to use a leased line to connect the on-premises IDC to the Alibaba Cloud Beijing access point, and create two router interfaces respectively connecting to the two VPCs on the VBR.

Note: In the following figure, only the lines in orange need to be constructed by a carrier.

one-to-all

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