- What's New
- Function Overview
- Service Overview
- Billing
- Getting Started
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User Guide
- Permissions Management
- Elastic IP
- EIP Billing
- EIP Pool
- Shared Bandwidth
- Shared Data Package
- Global EIPs
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- Best Practices
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API Reference
- Before You Start
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- Application Examples
- Permissions Policies and Supported Actions
- Appendix
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FAQs
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Product Consultation
- Managing Quotas
- How Do I Assign or Retrieve a Specific EIP?
- Why Is an EIP Newly Assigned the Same as the One I Released?
- Can I Buy a Specific EIP?
- Does an EIP Change Over Time?
- Why Can't I Find My Purchased EIP on the Management Console?
- What Is the EIP Assignment Policy?
- Can an EIP Be Used or Migrated Across Accounts?
- How Do I Query the Traffic Usage of My EIP?
- Do I Need to Configure a Shared Data Package for Use After It Is Purchased?
- Can I Change the Dedicated Bandwidth Used by an EIP to a Shared Bandwidth?
- How Many ECSs Can I Bind an EIP To?
- What Are the Differences Between EIP, Private IP Address, and Virtual IP Address?
- What Are the Differences Among a Bandwidth Add-On Package, Shared Data Package, and Shared Bandwidth?
- When Should I Use Premium BGP and Are There Any Limitations on Using Premium BGP?
- Why My EIPs Are Frozen? How Do I Unfreeze My EIPs?
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Billing and Payments
- How Is an EIP Billed?
- How Do I Change My EIP Billing Mode Between Pay-per-Use and Yearly/Monthly?
- How Do I Change the Billing Option of a Pay-per-Use EIP Between By Bandwidth and By Traffic?
- Why Am I Still Being Billed After My EIP Has Been Unbound or Released?
- When Will I Be Billed for Reservation Price?
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EIP Binding and Unbinding
- How Do I Access an ECS with an EIP Bound from the Internet?
- How Can I Unbind an Existing EIP from an Instance and Bind Another EIP to the Instance?
- Can I Bind an EIP of an ECS to Another ECS?
- Can I Bind an EIP to a Cloud Resource in Another Region?
- Can Multiple EIPs Be Bound to an ECS?
- What Are the Differences Between Unbinding and Releasing an EIP?
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Bandwidth
- How Do I Increase a Bandwidth to Be More Than 300 Mbit/s?
- What Bandwidth Types Are Available?
- How Many EIPs Can I Add to Each Shared Bandwidth?
- What Are the Differences Between a Dedicated Bandwidth and a Shared Bandwidth?
- What Are Inbound Bandwidth and Outbound Bandwidth?
- How Do I Know If My EIP Bandwidth Has Been Exceeded?
- What Are the Differences Between Public Bandwidth and Private Bandwidth?
- Can I Increase a Yearly/Monthly Bandwidth and Decrease It Later?
- What Is the Relationship Between Bandwidth and Upload/Download Rate?
- What Are the Differences Among Static BGP, Dynamic BGP, and Premium BGP?
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Connectivity
- What Are the Priorities of the Custom Route and EIP If Both Are Configured for an ECS to Enable the ECS to Access the Internet?
- Why Can't My ECS Access the Internet Even After an EIP Is Bound?
- What Should I Do If an EIP Cannot Be Pinged?
- How Do I Unblock an EIP?
- Why Is There Network Jitter or Packet Loss During Cross-Border Communications?
- Why Does the Download Speed of My ECS Is Slow?
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Product Consultation
- Videos
- Glossary
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More Documents
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User Guide (ME-Abu Dhabi Region)
- Service Overview
- Quick Start
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Elastic IP
- EIP Overview
- Assigning an EIP and Binding It to an ECS
- Assigning an EIP
- Binding an EIP to an Instance
- Unbinding an EIP from an Instance
- Releasing an EIP
- Changing Dedicated Bandwidth Size of an EIP
- Unbinding an EIP from an ECS and Releasing the EIP
- Modifying an EIP Bandwidth
- Exporting EIP Information
- Managing EIP Tags
- Shared Bandwidth
- Monitoring
-
FAQs
-
Product Consultation
- What Is a Quota?
- How Do I Assign or Retrieve a Specific EIP?
- Why Is an EIP Newly Assigned the Same as the One I Released?
- What Are the Differences Between EIP, Private IP Address, and Virtual IP Address?
- Can an EIP That Uses Dedicated Bandwidth Be Changed to Use Shared Bandwidth?
- Can I Bind an EIP to Multiple ECSs?
- What Are the Differences Between the Primary and Extension NICs of ECSs?
- What Is the EIP Assignment Policy?
- Can I Assign a Specific EIP?
- Can a Bandwidth Be Used by Multiple Accounts?
- How Do I Unbind an EIP from an Instance and Bind a New EIP to the Instance?
- Why Can't I Find My Assigned EIP on the Management Console?
- EIP Binding and Unbinding
-
Bandwidth
- What Is the Bandwidth Size Range?
- How Do I Increase a Bandwidth to Be More Than 300 Mbit/s?
- What Bandwidth Types Are Available?
- Is There a Limit to the Number of EIPs That Can Be Added to Each Shared Bandwidth?
- What Are the Differences Between a Dedicated Bandwidth and a Shared Bandwidth?
- What Are Inbound Bandwidth and Outbound Bandwidth?
- How Do I Know If My EIP Bandwidth Limit Has Been Exceeded?
- What Are the Differences Between Public Bandwidth and Private Bandwidth?
- What Is the Relationship Between Bandwidth and Upload/Download Rate?
- Connectivity
-
Product Consultation
- Change History
- API Reference (ME-Abu Dhabi Region)
-
User Guide (Kuala Lumpur Region)
- Service Overview
- Quick Start
- EIP
- Shared Bandwidth
- Monitoring
-
FAQs
- Product Consultation
- EIP Binding and Unbinding
-
Bandwidth
- What Is the Bandwidth Size Range?
- What Bandwidth Types Are Available?
- Is There a Limit to the Number of EIPs That Can Be Added to Each Shared Bandwidth?
- What Are the Differences Between a Dedicated Bandwidth and a Shared Bandwidth? Can a Dedicated Bandwidth Be Changed to a Shared Bandwidth or the Other Way Around?
- Connectivity
- Change History
- API Reference (Kuala Lumpur Region)
- User Guide (Ankara Region)
- API Reference (Ankara Region)
-
User Guide (ME-Abu Dhabi Region)
- General Reference
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Shared Bandwidth Overview
A shared bandwidth can be shared by multiple EIPs and controls the data transfer rate on these EIPs in a centralized manner. All ECSs and load balancers that have EIPs bound in the same region can share a bandwidth.
When you host a large number of applications on the cloud, if each EIP uses a bandwidth, a lot of bandwidths are required, which significantly increases bandwidth costs. If all EIPs share the same bandwidth, you can lower bandwidth costs and easily perform system O&M.
- After QoS is enabled, you can configure the bandwidth limits for each EIP that uses the shared bandwidth.
Advantages
- Lowered Bandwidth Costs
Region-level bandwidth sharing and multiplexing reduce bandwidth usage and O&M costs.
- Flexible Operations
You can add pay-per-use EIPs (except for 5_gray EIPs of dedicated load balancers) to or remove them from a shared bandwidth regardless of the type of instances that they are bound to.
- Flexible Billing Modes
The yearly/monthly and pay-per-use billing modes are provided.
How to Use Shared Bandwidth
You can use the shared bandwidth in either of the two ways shown in the following table.
Description |
Step |
---|---|
Method 1: Assign a shared bandwidth and add your pay-per-use EIPs to the bandwidth. |
|
Method 2: Assign a shared bandwidth, set Billed By to Shared Bandwidth and select the shared bandwidth when you assign pay-per-use EIPs. |
QoS
With QoS enabled, you can configure bandwidth limits for each EIP that uses the shared bandwidth. The bandwidth of each EIP is guaranteed and will not affect the other EIPs that use the same shared bandwidth, improving the shared bandwidth utilization. The minimum bandwidth of the EIP that uses a shared bandwidth can be configured when the shared bandwidth is congested. The maximum bandwidth of the EIP that uses a shared bandwidth can be reached only when the shared bandwidth is not used by any other EIP. The maximum bandwidth cannot exceed the shared bandwidth.
This function supports both IPv4 and IPv6 EIPs. QoS can be enabled only when the shared bandwidth is greater than or equal to 50 Mbit/s. For details about QoS, see QoS.
- After you migrate services to the cloud, you want to allocate bandwidth to each department in a unified manner, implementing proper allocation of bandwidth resources.
- The peak hours of multiple services are different, and you want to limit the bandwidth of all EIPs that use the same shared bandwidth to ensure efficient use of bandwidth resources.
- If some services are attacked and occupy too much bandwidth, you need to limit the bandwidth to prevent other services from being affected.
Shared Bandwidth Quotas
- Each account can have a maximum of 5 shared bandwidths. If you need more shared bandwidths, submit a service ticket to request a quota increase.
- If you want to increase a pay-per-use shared bandwidth that is greater than 1 Gbit/s, the minimum increase is 500 Mbit/s.
Notes and Constraints
- A shared bandwidth can only be used by resources from its same account.
- The minimum size of a shared bandwidth that can be purchased is 5 Mbit/s. You can only add pay-per-use EIPs to a shared bandwidth.
- If a yearly/monthly shared bandwidth is deleted upon expiration, EIPs sharing the bandwidth will be removed from the bandwidth and be billed based on the mode before they are added to the shared bandwidth.
- A dedicated bandwidth cannot be changed to a shared bandwidth and vice versa. However, you can purchase a shared bandwidth for pay-per-use EIPs.
- Add an EIP to a shared bandwidth and then the EIP will use the shared bandwidth.
- Remove the EIP from the shared bandwidth and then the EIP will use the dedicated bandwidth.
- If you want to submit a service ticket, refer to Submitting a Service Ticket.
Related Operations
- Adding EIPs to or Removing EIPs from a Shared Bandwidth: After a shared bandwidth is assigned, you can add multiple pay-per-use EIPs to it so that all EIPs share the same bandwidth.
- Modifying a Shared Bandwidth: You can change the size of the shared bandwidth you have assigned.
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