Scenarios

When you host a large number of applications on the cloud, if each EIP uses dedicated bandwidth, a lot of bandwidths are required, which incurs high costs. If all EIPs share the same bandwidth, your network operation costs will be lowered and your system O&M as well as resource statistics will be simplified.

Assign a shared bandwidth for use with EIPs.

Procedure

1. Log in to the management console.
2. Click in the upper left corner and select the desired region and project.
3. On the console homepage, under Network, click Elastic IP.
4. In the navigation pane on the left, choose Elastic IP and Bandwidth > Shared Bandwidths.
5. In the upper right corner, click Buy Shared Bandwidth. On the displayed page, configure parameters as prompted.

   Table 1 Parameter descriptions

   Parameter	Description	Example Value
   Billing Mode	The billing mode of a shared bandwidth. The billing mode can be: Yearly/Monthly: You pay for the bandwidth by year or month before using it. No other charges apply during the validity period of the bandwidth. Pay-per-use: You pay for the bandwidth based on the amount of time you use the bandwidth.	Yearly/Monthly
   Region	Regions are geographic areas that are physically isolated from each other. The networks inside different regions are not connected to each other, so resources cannot be shared across different regions. For lower network latency and faster access to your resources, select the region nearest you.	CN North-Beijing1
   Billed By	The billing method for the shared bandwidth. The billing can be by bandwidth or 95th percentile bandwidth (enhanced). NOTE: 95th percentile bandwidth (enhanced) can be selected only when Billing Mode is set to Pay-per-use. Only customers with a level of V4 or higher can use the enhanced 95th percentile bandwidth billing. Enhanced 95th percentile bandwidth billing is based on average monthly bandwidth usage excluding peak traffic values. The charges will be deducted from your account balance on a monthly basis. You can specify the guaranteed minimum bandwidth by setting the bandwidth size and the minimum bandwidth percentage. If the monthly peak bandwidth is less than or equal to the guaranteed minimum bandwidth, you will be billed based on the guaranteed minimum bandwidth. If the monthly peak bandwidth is greater than the guaranteed minimum bandwidth, you will be billed based on the monthly peak bandwidth. If the enhanced 95th percentile bandwidth billing is used, the minimum shared bandwidth is 300 Mbit/s. For more information, see What Is Enhanced 95th Percentile Bandwidth Billing?	Bandwidth
   Bandwidth	The bandwidth size in Mbit/s. The value ranges from starting with 5 Mbit/s. The maximum bandwidth can be 2000 Mbit/s.	10
   Enterprise Project	The enterprise project to which the EIP belongs. An enterprise project facilitates project-level management and grouping of cloud resources and users. The name of the default project is default. For details about creating and managing enterprise projects, see the Enterprise Management User Guide.	default
   Bandwidth Name	The name of the shared bandwidth.	Bandwidth-001
   Required Duration	The duration for which the purchased EIP will use. The duration must be specified if the Billing Mode is set to Yearly/Monthly.	2 months

6. Click Next.