Adding Instances to a Global Connection Bandwidth

Scenarios

Central networks and global EIPs can use global connection bandwidths for communication.

Constraints

• Instances that can be added to a global connection bandwidth must be from the same region as the bandwidth.
• A global connection bandwidth can only be used by instances of the same type. If you want another type of instances to use a global connection bandwidth that already has instances, you need to remove the instances first.
  • You can add or remove global EIPs in batches.
  • You can bind one global connection bandwidth to or unbind it from a central network at a time.
• To use a global connection bandwidth on a central network, you need to configure cross-site connections by referring to the following:
  • Creating a central network
  • Applying a policy
  • Managing attachments
• Global connection bandwidths of different types can be used with different instances. For details, see the following table.

  Table 1 Instances that can use a global connection bandwidth

  Bandwidth Type	Global EIP	Central Network
  Multi-city	√	×
  Geographic-region	√	√
  Cross-geographic-region	√	√

Using a Global Connection Bandwidth on a Central Network

1. Go to the Central Networks page.
2. Locate the central network and click its name.
3. Click the Cross-Site Connection Bandwidths tab.
4. Locate the cross-site connection and click Assign in the Global Connection Bandwidth column.
5. On the Assign Cross-Site Connection Bandwidth page, select the global connection bandwidth.
6. Specify the bandwidth and click OK.

Adding Global EIPs to a Global Connection Bandwidth

1. Go to the Global Connection Bandwidths page.
2. Locate the global connection bandwidth and click Bind in the Operation column.
3. In the displayed dialog box, select Global EIP for Instance Type.

   For a multi-city global connection bandwidth, select the two regions where the bandwidth will be used.

4. Search for global EIPs using keyword.
5. Select one or more global EIPs and click OK.