Updated on 2025-04-16 GMT+08:00

Inter-Region Bandwidth Overview

What Is an Inter-Region Bandwidth?

An inter-region bandwidth is used for communication between regions. If there is more than one inter-region bandwidth, the sum of all inter-region bandwidths cannot exceed the total bandwidth of the bandwidth package.

In Figure 1, two inter-region bandwidths are assigned from the bandwidth package for communication between the Chinese mainland and Asia Pacific. The sum of the two inter-region bandwidths cannot exceed the maximum bandwidth in the bandwidth package.

Figure 1 Bandwidth packages and inter-region bandwidths for communication between geographic regions

Constraints on Inter-Region Bandwidths

  • To allow you to test network connectivity between regions, Cloud Connect provides 10 kbit/s by default. To test network connectivity, you can ping an ECS in one VPC from an ECS in the other VPC.
  • If network instances are in the same region, they can communicate with each other by default after they are loaded to one cloud connection.