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- What's New
- Function Overview
-
Service Overview
- ELB Infographics
- What Is ELB?
- ELB Advantages
- How ELB Works
- Application Scenarios
- Differences Between Dedicated and Shared Load Balancers
- Load Balancing on a Public or Private Network
- Network Traffic Paths
- Specifications of Dedicated Load Balancers
- Notes and Constraints
- Security
- Permissions
- Product Concepts
- ELB and Other Services
-
Billing
- Billing Overview
- Billing Mode
- Billing Items (Dedicated Load Balancers)
- Billing Items (Shared Load Balancers)
- Billing Examples
- Bills
- Arrears
- Stopping Billing
- Cost Management
-
FAQs
- When Do I Need Public Bandwidth for ELB?
- Will I Be Billed for Both the Bandwidth Used by the Load Balancer and the Bandwidth Used by Backend Servers?
- Do I Need to Adjust the Bandwidth of Shared Load Balancers Based on the Bandwidth Used by Backend Servers?
- Can I Modify the Bandwidth of a Load Balancer?
- What Functions Will Become Unavailable If a Load Balancer Is Frozen?
- Getting Started
-
User Guide
-
User Guide for Dedicated Load Balancers
- Using a Dedicated Load Balancer
- Permissions Management
-
Load Balancer
- Dedicated Load Balancer Overview
- Creating a Dedicated Load Balancer
- Enabling or Disabling Modification Protection for Dedicated Load Balancers
- Modifying the Basic Configurations of a Dedicated Load Balancer
- Modifying the Network Configurations of a Dedicated Load Balancer
- Exporting Dedicated Load Balancers
- Deleting a Dedicated Load Balancer
- Copying a Dedicated Load Balancer
- Enabling or Disabling a Load Balancer
- Listener
- Backend Server Group
- Backend Server
- Health Check
- Security
- Access Logging
- Tags and Quotas
- Cloud Eye Monitoring
- Auditing
-
User Guide for Shared Load Balancers
- Permissions Management
-
Load Balancer
- Shared Load Balancer Overview
- Creating a Shared Load Balancer
- Configuring Modification Protection for Shared Load Balancers
- Changing the Network Configurations of a Shared Load Balancer
- Deleting a Shared Load Balancer
- Enabling or Disabling a Shared Load Balancer
- Enabling Guaranteed Performance for a Shared Load Balancer
- Listener
- Backend Server Group
- Backend Server
- Health Check
- Security
- Access Logging
- Tags and Quotas
- Cloud Eye Monitoring
- Auditing
- Self-service Troubleshooting
- Appendix
-
User Guide for Dedicated Load Balancers
-
Best Practices
- Using IP as a Backend to Route Traffic Across Backend Servers
- Using Advanced Forwarding for Application Iteration
- Integrating WAF with ELB to Protect Your Websites
- Configuring HTTPS Mutual Authentication to Improve Service Security
- Using ELB to Redirect HTTP Requests to an HTTPS Listener for Higher Service Security
-
API Reference
- Before You Start
- API Overview
- Selecting an API Version
- Calling APIs
-
APIs (V3)
- API Version
- Quota
- AZ
- Load Balancer Flavor
- Reserved IP Address
-
Load Balancer
- Creating a Load Balancer
- Batch Creating Load Balancers
- Upgrading a Load Balancer
- Querying Load Balancers
- Copying a Load Balancer
- Viewing the Details of a Load Balancer
- Updating a Load Balancer
- Deleting a Load Balancer
- Deleting a Load Balancer and Its Associated Resources
- Deleting a Load Balancer and Its Associated Resources (Including EIPs)
- Querying the Status Tree of a Load Balancer
- Deploying a Load Balancer in Other AZs
- Removing a Load Balancer from AZs
- Certificate
- Security Policy
-
IP Address Group
- Creating an IP Address Group
- Querying IP Address Groups
- Querying the Details of an IP Address Group
- Updating an IP Address Group
- Deleting an IP Address Group
- Updating IP Addresses in an IP Address Group
- Deleting IP Addresses from an IP Address Group
- Querying the Listeners Associated with an IP Address Group
- Listener
- Backend Server Group
- Backend Server
- Health Check
- Forwarding Policy
- Forwarding Rule
- Active/Standby Backend Server Group
- Log
- Asynchronous Task
- Feature Configuration
- Asynchronous Tasks
- APIs (V2)
-
APIs (OpenStack)
-
Tag
- Adding a Tag to a Load Balancer
- Batch Adding Load Balancer Tags
- Batch Deleting Load Balancer Tags
- Querying All Tags of a Load Balancer
- Querying the Tags of All Load Balancers
- Querying Load Balancers by Tag
- Deleting a Tag from a Load Balancer
- Adding a Tag to a Listener
- Batch Adding Tags to a Listener
- Batch Deleting Tags from a Listener
- Querying All Tags of a Listener
- Querying the Tags of All Listeners
- Querying Listeners by Tag
- Deleting a Tag from a Listener
- Status Codes
-
Tag
- Examples
- Permissions and Supported Actions
-
Historical APIs
- Shared Load Balancer APIs (OpenStack) (Discarded)
- Asynchronous Job Query (Discarded)
- Querying Versions (Discarded)
-
Getting Started
- Creating a Load Balancer
- Obtaining a Token
- Creating a Load Balancer
- Creating a Public Network Load Balancer
- Adding a Listener
- Creating a Backend Server Group
- Adding Backend Servers
- Configuring a Health Check
- Adding a Forwarding Policy
- Adding a Forwarding Rule
- Adding a Whitelist
- Creating an SSL Certificate
- Appendix
- SDK Reference
-
FAQs
- Popular Questions
-
Service Abnormality
- What Can I Do If There Is Packet Loss?
- Why Can't I Access My Backend Servers Through a Load Balancer?
- Why Does a Server Occasionally Time Out When a Client Access It Through Different Load Balancers or Different Listeners of a Load Balancer?
- What Can I Do If ELB Can't Be Accessed or Traffic Routing is Interrupted?
- How Can I Handle Abnormal Status Codes?
- How Do I Handle Abnormal Request Headers?
- How Do I Check for Traffic Inconsistencies?
- Why Does ELB Fail to Distribute Traffic Evenly?
- How Do I Check If There Is Excessive Access Delay?
- What Do I Do If a Load Balancer Fails a Stress Test?
- How Do I Check If Sticky Sessions Failed to Take Effect?
- How Do I Check SSL/TLS Authentication Errors?
-
Health Checks
- How Do I Troubleshoot an Unhealthy Backend Server of a Dedicated Load Balancer?
- How Do I Troubleshoot an Unhealthy Backend Server of a Shared Load Balancer?
- Why Is the Interval at Which Backend Servers Receive Health Check Packets Different from the Configured Interval?
- How Does ELB Perform UDP Health Checks? What Are the Precautions for UDP Health Checks?
- Why Does ELB Frequently Send Requests to Backend Servers During Health Checks?
- When Does a Health Check Start?
- What Do I Do If a Lot of Access Logs Are Generated During Health Checks?
- What Status Codes Will Be Returned If Backend Servers Are Identified as Healthy?
-
ELB Functionality
- Can Load Balancers Be Used Separately?
- Can ELB Block DDoS Attacks and Secure Web Code?
- What Types of APIs Does ELB Provide? What Are Permissions of ELB?
- Can Backend Servers of a Load Balancer Run Different OSs?
- Can ELB Be Used Across Accounts or VPCs?
- Can a Backend Server Access Its Load Balancer?
- Can Both the Listener and Backend Server Group Use HTTPS?
- Does ELB Support IPv6 Networks?
- How Do I Determine the Server Response Time Based on Monitoring Data and Logs?
- How Can I Transfer the IP Address of a Client?
- What Are the Differences Between Persistent Connections and Sticky Sessions?
- How Do I Test Sticky Sessions Using Linux Curl Commands?
-
Load Balancers
- How Does ELB Distribute Traffic?
- How Can I Configure Load Balancing for Containerized Applications?
- Can I Bind Multiple EIPs to a Load Balancer?
- Why Multiple IP Addresses Are Required When I Create a Dedicated Load Balancer?
- Can Backend Servers Access the Internet Using the EIP of the Load Balancer?
- Do Shared Load Balancers Have Specifications?
- What Is the Difference Between the Bandwidth Defined in Each Specification of a Dedicated Load Balancer and the Bandwidth of an EIP?
- How Do I Combine ELB and WAF?
-
Listeners
- What Are the Relationships Between Load Balancing Algorithms and Sticky Session Types?
- What HTTP Headers Can I Configure for an HTTP and HTTP Listener?
- Will ELB Stop Distributing Traffic Immediately After a Listener Is Deleted?
- Does ELB Have Restrictions on the File Upload Speed and Size?
- Can Multiple Load Balancers Route Requests to One Backend Server?
- How Is WebSocket Used?
- What Are the Three Timeouts of a Listener and What Are the Default Durations?
- Why Can't I Select the Target Backend Server Group When Adding or Modifying a Listener?
- Why Is There a Security Warning After a Certificate Is Configured for an HTTPS Listener?
- Why Is a Forwarding Policy in the Faulty State?
-
Backend Servers
- Can Backend Servers Access the Internet After They Are Associated with a Load Balancer?
- Can ELB Distribute Traffic Across Servers That Are Not Provided by Huawei Cloud?
- Why Are Backend Servers Frequently Accessed by IP Addresses in 100.125.0.0/16 or 214.0.0.0/8?
- Can ELB Route Traffic Across Regions?
- Does Each Backend Server Need an EIP to Receive Requests from a Public Network Load Balancer?
- How Do I Check the Network Conditions of a Backend Server?
- How Can I Check the Network Configuration of a Backend Server?
- How Do I Check the Status of a Backend Server?
- How Do I Check Whether a Backend Server Can Be Accessed Through an EIP?
- Why Is the Number of Active Connections Monitored by Cloud Eye Different from the Number of Connections Established with the Backend Servers?
- Why Can I Access Backend Servers After a Whitelist Is Configured?
- When Will the Changes to Server Weights Be Applied?
- Certificates
- Access Logging
- Monitoring
-
Billing
- When Do I Need Public Bandwidth for ELB?
- Will I Be Billed for Both the Bandwidth Used by the Load Balancer and the Bandwidth Used by Backend Servers?
- Do I Need to Adjust the Bandwidth of Shared Load Balancers Based on the Bandwidth Used by Backend Servers?
- Can I Modify the Bandwidth of a Load Balancer?
- What Functions Will Become Unavailable If a Load Balancer Is Frozen?
- Videos
- Glossary
-
More Documents
-
User Guide (ME-Abu Dhabi Region)
- Service Overview
- Load Balancer
- Listener
- Backend Server
- Health Check
- Certificate
- Access Logging
- Monitoring
- Auditing
-
FAQs
- Questions Summary
- ELB Usage
- Load Balancer
- Listener
-
Backend Server
- Why Is the Interval at Which Backend Servers Receive Health Check Packets Is Different from the Configured Health Check Interval?
- Can Backend Servers Access the Public Network After They Are Associated with a Load Balancer?
- How Can I Check the Network Conditions of a Backend Server?
- How Can I Check the Network Configuration of a Backend Server?
- How Can I Check the Status of a Backend Server?
- When Is a Backend Server Considered Healthy?
- Health Check
- Obtaining Source IP Addresses
- HTTP/HTTPS Listeners
- Sticky Session
- Appendix
- Change History
-
API Reference (ME-Abu Dhabi Region)
- Before You Start
- API Overview
- Calling APIs
- Getting Started
- Load Balancer APIs
- Load Balancer (Enterprise Project) APIs
- Common Parameters
- Appendix
- Change History
-
User Guide (Paris Region)
-
Service Overview
- What Is ELB?
- Product Advantages
- How ELB Works
- Application Scenarios
- Differences Between Dedicated and Shared Load Balancers
- Load Balancing on a Public or Private Network
- Network Traffic Paths
- Specifications of Dedicated Load Balancers
- Quotas and Constraints
- Billing (Shared Load Balancers)
- Billing (Dedicated Load Balancers)
- Permissions
- Product Concepts
- How ELB Works with Other Services
- Getting Started
-
Load Balancer
- Overview
- Preparations for Creating a Load Balancer
- Creating a Dedicated Load Balancer
- Creating a Shared Load Balancer
- Configuring Deletion Protection for Load Balancers
- Modifying the Bandwidth
- Changing the Specifications of a Dedicated Load Balancer
- Changing an IP Address
- Binding an IP Address to or Unbinding an IP Address from a Load Balancer
- Adding to or Removing from an IPv6 Shared Bandwidth
- Exporting the Load Balancer List
- Deleting a Load Balancer
- Listener
- Advanced Features of HTTP/HTTPS Listeners
- Backend Server Group
- Backend Server (Dedicated Load Balancers)
- Backend Server (Shared Load Balancers)
- Certificate
- Access Control
- TLS Security Policy
- Tag
- Access Logging
- Monitoring
- Auditing
- Load Balancer Migration
- Permissions Management
- Quotas
-
FAQ
- Popular Questions
- Why Can't I Access My Backend Servers Through a Load Balancer?
- What Can I Do If ELB Can't Be Accessed or Traffic Routing is Interrupted?
- How Can I Handle Error Codes?
- Can ELB Be Used Separately?
- Does ELB Support Persistent Connections?
- Does ELB Support FTP on Backend Servers?
- Is an EIP Assigned Exclusively to a Load Balancer?
- How Many Load Balancers and Listeners Can I Have?
- What Types of APIs Does ELB Provide? What Are Permissions of ELB?
- Can I Adjust the Number of Backend Servers When a Load Balancer is Running?
- Can Backend Servers Run Different OSs?
- Can I Configure Different Backend Ports for a Load Balancer?
- Can ELB Be Used Across Accounts or VPCs?
- Can Backend Servers Access the Ports of a Load Balancer?
- Can Both the Listener and Backend Server Group Use HTTPS?
- Can I Change the VPC and Subnet for My Load Balancer?
- Can I Upgrade a Shared Load Balancer to a Dedicated Load Balancer Without Interrupting Traffic Routing?
- Does ELB Support IPv6 Networks?
- How Do I Check for Traffic Inconsistencies?
- How Do I Check If Traffic Is Being Evenly Distributed?
- How Do I Check If There Is Excessive Access Delay?
- What Do I Do If a Load Balancer Fails a Stress Test?
-
Load Balancers
- How Does ELB Distribute Traffic?
- How Can I Access a Load Balancer Across VPCs?
- How Can I Configure Load Balancing for Containerized Applications?
- Why Can't I Delete My Load Balancer?
- Do I Need to Configure EIP Bandwidth for My Load Balancers?
- Can I Bind Multiple EIPs to a Load Balancer?
- Why Multiple IP Addresses Are Required When I Create or Enable a Dedicated Load Balancer?
- Why Are Requests from the Same IP Address Routed to Different Backend Servers When the Load Balancing Algorithm Is Source IP Hash?
- Can Backend Servers Access the Internet Using the EIP of the Load Balancer?
- Do Shared Load Balancers Have Specifications?
- Will Traffic Routing Be Interrupted If the Load Balancing Algorithm Is Changed?
- What Is the Difference Between the Bandwidth Included in Each Specification of a Dedicated Load Balancer and the Bandwidth of an EIP?
- How Do I Combine ELB and WAF?
-
Listeners
- What Are the Relationships Between Load Balancing Algorithms and Sticky Session Types?
- Can I Bind Multiple Certificates to a Listener?
- What HTTP Headers Can I Configure for an HTTP and HTTP Listener?
- Will ELB Stop Distributing Traffic Immediately After a Listener Is Deleted?
- Does ELB Have Restrictions on the File Upload Speed and Size?
- Can Multiple Load Balancers Route Requests to One Backend Server?
- How Is WebSocket Used?
- Why Can't I Select the Target Backend Server Group When Adding or Modifying a Listener?
- Why Cannot I Add a Listener to a Dedicated Load Balancer?
-
Backend Servers
- Why Is the Interval at Which Backend Servers Receive Health Check Packets Different from What I Have Configured?
- Can Backend Servers Access the Internet After They Are Associated with a Load Balancer?
- Why Are Backend Servers Frequently Accessed by IP Addresses in 100.125.0.0/16?
- Can ELB Route Traffic Across Regions?
- Does Each Backend Server Need an EIP to Receive Requests from a Public Network Load Balancer?
- How Do I Check the Network Conditions of a Backend Server?
- How Can I Check the Network Configuration of a Backend Server?
- How Do I Check the Status of a Backend Server?
- When Is a Backend Server Considered Healthy?
- How Do I Check Whether a Backend Server Can Be Accessed Through an EIP?
- Why Is the Number of Active Connections Monitored by Cloud Eye Different from the Number of Connections Established with the Backend Servers?
- Why Can I Access Backend Servers After a Whitelist Is Configured?
- When Will Modified Weights Take Effect?
- Why Must the Subnet Where the Load Balancer Resides Have at Least 16 Available IP Addresses for Enabling IP as a Backend?
-
Health Checks
- How Do I Troubleshoot an Unhealthy Backend Server?
- Why Is the Interval at Which Backend Servers Receive Health Check Packets Different from the Configured Interval?
- How Does ELB Perform UDP Health Checks? What Are the Precautions for UDP Health Checks?
- Why Does ELB Frequently Send Requests to Backend Servers During Health Checks?
- When Does a Health Check Start?
- Do Maximum Retries Include Health Checks That Consider Backend Servers Unhealthy?
- What Do I Do If a Lot of Access Logs Are Generated During Health Checks?
- What Status Codes Will Be Returned If Backend Servers Are Identified as Healthy?
- Obtaining Source IP Addresses
-
HTTP/HTTPS Listeners
- Which Protocol Should I Select for the Backend Server Group When Adding an HTTPS Listener?
- Why Is There a Security Warning After a Certificate Is Configured?
- Why Is a Forwarding Policy in the Faulty State?
- Why Can't I Add a Forwarding Policy to a Listener?
- Why Cannot I Select an Existing Backend Server Group When Adding a Forwarding Policy?
- Sticky Sessions
- Certificates
- Monitoring
- Change History
-
Service Overview
-
API Reference (Paris Region)
- Before You Start
- API Overview
- Calling APIs
- Getting Started
- Dedicated Load Balancer APIs
- Classic Load Balancer APIs
- Enhanced Load Balancer APIs
- Appendix
- Change History
-
User Guide (Kuala Lumpur Region)
- Service Overview
- Getting Started
-
Load Balancer
- Overview
- Preparations for Creating a Load Balancer
- Creating a Dedicated Load Balancer
- Modifying the Bandwidth
- Changing the Specifications of a Dedicated Load Balancer
- Changing an IP Address
- Binding an IP Address to or Unbinding an IP Address from a Load Balancer
- Adding to or Removing from an IPv6 Shared Bandwidth
- Exporting the Load Balancer List
- Deleting a Load Balancer
- Listener
- Advanced Features of HTTP/HTTPS Listeners
- Backend Server Group
- Backend Server
- Certificate
- Access Control
- Access Logging
- Monitoring
- Auditing
- Quotas
-
FAQ
- Popular Questions
- Service Abnormality
-
ELB Functionality
- Can ELB Be Used Separately?
- Does ELB Support Persistent Connections?
- Does ELB Support FTP on Backend Servers?
- Is an EIP Assigned Exclusively to a Load Balancer?
- How Many Load Balancers and Listeners Can I Have?
- What Types of APIs Does ELB Provide? What Are Permissions of ELB?
- Can I Adjust the Number of Backend Servers When a Load Balancer is Running?
- Can Backend Servers Run Different OSs?
- Can I Configure Different Backend Ports for a Load Balancer?
- Can ELB Be Used Across Accounts or VPCs?
- Can Backend Servers Access the Ports of a Load Balancer?
- Can Both the Listener and Backend Server Group Use HTTPS?
- Can I Change the VPC and Subnet for My Load Balancer?
- Load Balancing Performance
-
Load Balancers
- How Does ELB Distribute Traffic?
- How Can I Access a Load Balancer Across VPCs?
- Do I Need to Configure EIP Bandwidth for My Load Balancers?
- Can I Bind Multiple EIPs to a Load Balancer?
- Why Multiple IP Addresses Are Required When I Create or Enable a Dedicated Load Balancer?
- Why Are Requests from the Same IP Address Routed to Different Backend Servers When the Load Balancing Algorithm Is Source IP Hash?
- Can Backend Servers Access the Internet Using the EIP of the Load Balancer?
- Will Traffic Routing Be Interrupted If the Load Balancing Algorithm Is Changed?
- What Is the Difference Between the Bandwidth Included in Each Specification of a Dedicated Load Balancer and the Bandwidth of an EIP?
-
Listeners
- What Are the Relationships Between Load Balancing Algorithms and Sticky Session Types?
- Can I Bind Multiple Certificates to a Listener?
- Will ELB Stop Distributing Traffic Immediately After a Listener Is Deleted?
- Does ELB Have Restrictions on the File Upload Speed and Size?
- Can Multiple Load Balancers Route Requests to One Backend Server?
- How Is WebSocket Used?
- Why Can't I Select the Target Backend Server Group When Adding or Modifying a Listener?
- Why Cannot I Add a Listener to a Dedicated Load Balancer?
-
Backend Servers
- Why Is the Interval at Which Backend Servers Receive Health Check Packets Different from What I Have Configured?
- Can Backend Servers Access the Internet After They Are Associated with a Load Balancer?
- Can ELB Route Traffic Across Regions?
- Does Each Backend Server Need an EIP to Receive Requests from a Public Network Load Balancer?
- How Do I Check the Network Conditions of a Backend Server?
- How Can I Check the Network Configuration of a Backend Server?
- How Do I Check the Status of a Backend Server?
- When Is a Backend Server Considered Healthy?
- Why Can I Access Backend Servers After a Whitelist Is Configured?
- When Will Modified Weights Take Effect?
- Why Must the Subnet Where the Load Balancer Resides Have at Least 16 Available IP Addresses for Enabling IP as a Backend?
-
Health Checks
- How Do I Troubleshoot an Unhealthy Backend Server?
- Why Is the Interval at Which Backend Servers Receive Health Check Packets Different from the Configured Interval?
- How Does ELB Perform UDP Health Checks? What Are the Precautions for UDP Health Checks?
- Why Does ELB Frequently Send Requests to Backend Servers During Health Checks?
- When Does a Health Check Start?
- Do Maximum Retries Include Health Checks That Consider Backend Servers Unhealthy?
- What Do I Do If a Lot of Access Logs Are Generated During Health Checks?
- What Status Codes Will Be Returned If Backend Servers Are Identified as Healthy?
- Obtaining Source IP Addresses
-
HTTP/HTTPS Listeners
- Which Protocol Should I Select for the Backend Server Group When Adding an HTTPS Listener?
- Why Is There a Security Warning After a Certificate Is Configured?
- Why Is a Forwarding Policy in the Faulty State?
- Why Can't I Add a Forwarding Policy to a Listener?
- Why Cannot I Select an Existing Backend Server Group When Adding a Forwarding Policy?
- Sticky Sessions
- Certificates
- Monitoring
- Change History
-
API Reference (Kuala Lumpur Region)
- Before You Start
- API Overview
- Calling APIs
- APIs
- Permissions Policies and Supported Actions
- Appendix
- Historical APIs
- Change History
-
User Guide (Ankara Region)
- Service Overview
- Load Balancer
- Listener
- Advanced Features of HTTP/HTTPS Listeners
- Backend Server Group
- Backend Server
- Certificate
- Access Control
- TLS Security Policy
- Access Logging
- Monitoring
- Quotas
-
FAQ
- Popular Questions
-
ELB Functionality
- Can ELB Be Used Separately?
- Does ELB Support Persistent Connections?
- Does ELB Support FTP on Backend Servers?
- Is an EIP Assigned Exclusively to a Load Balancer?
- How Many Load Balancers and Listeners Can I Have?
- What Types of APIs Does ELB Provide? What Are Permissions of ELB?
- Can I Adjust the Number of Backend Servers When a Load Balancer is Running?
- Can Backend Servers Run Different OSs?
- Can I Configure Different Backend Ports for a Load Balancer?
- Can ELB Be Used Across Accounts or VPCs?
- Can Backend Servers Access the Ports of a Load Balancer?
- Can Both the Listener and Backend Server Group Use HTTPS?
- Can I Change the VPC and Subnet for My Load Balancer?
-
Load Balancers
- How Does ELB Distribute Traffic?
- How Can I Access a Load Balancer Across VPCs?
- Do I Need to Configure EIP Bandwidth for My Load Balancers?
- Can I Bind Multiple EIPs to a Load Balancer?
- Why Multiple IP Addresses Are Required When I Create or Enable a Dedicated Load Balancer?
- Why Are Requests from the Same IP Address Routed to Different Backend Servers When the Load Balancing Algorithm Is Source IP Hash?
- Can Backend Servers Access the Internet Using the EIP of the Load Balancer?
- Will Traffic Routing Be Interrupted If the Load Balancing Algorithm Is Changed?
- What Is the Difference Between the Bandwidth Included in Each Specification of a Dedicated Load Balancer and the Bandwidth of an EIP?
-
Listeners
- What Are the Relationships Between Load Balancing Algorithms and Sticky Session Types?
- Can I Bind Multiple Certificates to a Listener?
- Will ELB Stop Distributing Traffic Immediately After a Listener Is Deleted?
- Does ELB Have Restrictions on the File Upload Speed and Size?
- Can Multiple Load Balancers Route Requests to One Backend Server?
- How Is WebSocket Used?
- Why Can't I Select the Target Backend Server Group When Adding or Modifying a Listener?
- Why Cannot I Add a Listener to a Dedicated Load Balancer?
-
Backend Servers
- Why Is the Interval at Which Backend Servers Receive Health Check Packets Different from What I Have Configured?
- Can Backend Servers Access the Internet After They Are Associated with a Load Balancer?
- Can ELB Route Traffic Across Regions?
- Does Each Backend Server Need an EIP to Receive Requests from a Public Network Load Balancer?
- How Do I Check the Network Conditions of a Backend Server?
- How Can I Check the Network Configuration of a Backend Server?
- How Do I Check the Status of a Backend Server?
- When Is a Backend Server Considered Healthy?
- Why Can I Access Backend Servers After a Whitelist Is Configured?
- When Will Modified Weights Take Effect?
- Why Must the Subnet Where the Load Balancer Resides Have at Least 16 Available IP Addresses for Enabling IP as a Backend?
-
Health Checks
- How Do I Troubleshoot an Unhealthy Backend Server?
- Why Is the Interval at Which Backend Servers Receive Health Check Packets Different from the Configured Interval?
- How Does ELB Perform UDP Health Checks? What Are the Precautions for UDP Health Checks?
- Why Does ELB Frequently Send Requests to Backend Servers During Health Checks?
- When Does a Health Check Start?
- Do Maximum Retries Include Health Checks That Consider Backend Servers Unhealthy?
- What Do I Do If a Lot of Access Logs Are Generated During Health Checks?
- What Status Codes Will Be Returned If Backend Servers Are Identified as Healthy?
- Obtaining Source IP Addresses
-
HTTP/HTTPS Listeners
- Which Protocol Should I Select for the Backend Server Group When Adding an HTTPS Listener?
- Why Is There a Security Warning After a Certificate Is Configured?
- Why Is a Forwarding Policy in the Faulty State?
- Why Can't I Add a Forwarding Policy to a Listener?
- Why Cannot I Select an Existing Backend Server Group When Adding a Forwarding Policy?
- Sticky Sessions
- Certificates
- Monitoring
- Change History
-
API Reference (Ankara Region)
- Before You Start
- API Overview
- Calling APIs
- APIs (V3)
- APIs (V2)
-
APIs (OpenStack)
-
Tag
- Adding a Tag to a Load Balancer
- Batch Adding Load Balancer Tags
- Batch Deleting Load Balancer Tags
- Querying All Tags of a Load Balancer
- Querying the Tags of All Load Balancers
- Querying Load Balancers by Tag
- Deleting a Tag from a Load Balancer
- Adding a Tag to a Listener
- Batch Adding Tags to a Listener
- Batch Deleting Tags from a Listener
- Querying All Tags of a Listener
- Querying the Tags of All Listeners
- Querying Listeners by Tag
- Deleting a Tag from a Listener
- Status Codes
-
Tag
- Permissions and Supported Actions
- Appendix
- Change History
-
User Guide (ME-Abu Dhabi Region)
- General Reference
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Bills
You can view the resource usage and bills for different billing cycles under Billing > Dashboard of Billing Center.
Bill Generation
- Pay-per-use: The usage of pay-per-use resources is reported to the billing system at a fixed interval. Pay-per-use resources can be settled by hour, day, or month based on usage type. For details, see Bill Run for Pay-per-Use Resources. The ELB usage is billed by hour.
You are not charged immediately after a record is generated. For example, if a pay-per-use load balancer (which is billed on an hourly basis) is deleted at 08:30, you will still have expenditures for the 08:00 to 09:00 hour. However, you will not likely be billed for the 08:00 to 09:00 hour until about 10:00. In Billing Center, choose Billing > Expenditure Items in the left navigation pane. Expenditure Time in the bill indicates the time when the pay-per-use resource is used.
Viewing Bills of a Specific Load Balancer
- Log in to the management console and choose Networking > Elastic Load Balance from the service list.
The load balancer list page is displayed.
- Click the icon shown in the figure below to copy the load balancer ID.
Figure 1 Copying the load balancer ID
- On the top menu bar, choose Billing & Costs > Bills.
The Dashboard page is displayed.
- Choose Billing > Expenditure Details in the left navigation pane. Select Resource ID as the filter criteria, enter the resource ID obtained in step 2, and click the
icon.
Figure 2 Searching for a billBy default, the bill details are displayed by usage and billing cycle. You can choose other display options as required. For details, see Bills.
Checking the Resource Usage
Assume you purchased a pay-per-use dedicated load balancer with fixed specifications at 10:09:06 on April 8, 2023, deployed it in two AZs, selected small I for both application load balancing (HTTP/HTTPS) and network load balancing (TCP/UDP) to route requests over the private network, and finally deleted at 12:09:06 on April 8, 2023.
- ELB expenditure items
Pay-per-use load balancer usage is calculated by the second and billed on an hourly basis. You can check the expenditure items against the actual usage. For details, see Table 1.
Table 1 ELB expenditure items Cloud Service
Elastic Load Balance (ELB)
Load Balancer Type
Dedicated
Billing Mode
Pay-per-use
Expenditure Time
From 10:09:06 on April 08, 2023 to 12:09:06 on April 08, 2023, three transaction records would be generated for the following usage periods:
- 2023/04/08 10:09:06 – 2023/04/08 11:00:00
- 2023/04/08 11:00:00 – 2023/04/08 12:00:00
- 2023/04/08 12:00:00 – 2023/04/08 12:09:06
List Price
List price on the official website = Usage x Unit price
In this example, the load balancer was used for 3,054 seconds in the first period, and the unit price can be obtained on the Elastic Load Balance Pricing Details page. For example, if the unit price is $0.278 USD/hour, the list price for the first period = (3,054 ÷ 3,600) x 0.278 = $0.23583667 USD. Similarly, you can calculate the ELB list price for the other usage periods.
Discounted Amount
Discounts offered for cloud services, for example, commercial discounts, partner authorized discounts, and promotional discounts.
Truncated Amount
Huawei Cloud billing is calculated to the 8th decimal place. However, the amount due is truncated to the 2nd decimal place. The third and later decimal places are referred to as the truncated amounts.
Take the first usage period as an example. The truncated amount is $0.00083667 USD.
Amount Due
Amount due = List price – Discounted amount – Truncated amount
Take the first usage period as an example. If the discounted amount is 0, the amount due is $0.23 USD (0.23583667 – 0 – 0.00583667).
- ELB expenditure details
Expenditure details can be displayed in multiple ways. By default, the bill details of a resource are displayed by usage and by billing cycle. Table 2 illustrates the ELB bill details, which can be used to check against the actual usage.
Table 2 ELB expenditure details Cloud Service
Elastic Load Balance (ELB)
Load Balancer Type
Dedicated
Billing Mode
Pay-per-use
Resource Name/ID
Specifies the load balancer name and ID.
Example: elb-927f, 3ce7ffd0-e00b-47bc-815a-b05550be02a3
Specifications
Specifies the specifications of the load balancer.
Dedicated load balancer 2 AZ
Usage Type
l7_lcu_duration and l4_lcu_duration
Unit Price
When pay-per-use billing is used, the unit price is only provided if the amount is equal to the usage multiplied by the unit price. No unit price is provided in other pricing modes, for example, tiered pricing.
You can search for the unit price for pay-per-use load balancers on the ELB Pricing Details page.
Unit
USD/h (Displayed on the ELB Pricing Details page)
Usage
Depends on the unit of the unit price, which, for a load balancer, is USD/hour. ELB usage is billed by the hour. In this example, the total usage is 2 hours.
Usage Unit
Hour
List Price
List price on the official website = Usage x Unit price
In this example, the load balancer is used for two hours, and the unit price is obtained on the ELB Pricing Details page. If the unit price is $0.278 USD/hour, the list price = 2 x $0.278 USD = $0.556 USD.
Discounted Amount
Discounts offered for cloud services, for example, commercial discounts, partner authorized discounts, and promotional discounts.
Amount Due
Amount that should be paid for used cloud services after discounts are applied.
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