- What's New
- Function Overview
- Service Overview
- Getting Started
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User Guide
- Elastic IP
- EIP Billing
- Shared Bandwidth
- Monitoring
- Permissions Management
- Change History
- Best Practices
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API Reference
- Before You Start
- API Overview
- Calling APIs
- APIs
- API V3
- Native OpenStack Neutron APIs V2.0
- Application Examples
- Permissions Policies and Supported Actions
- Appendix
- Change History
- SDK Reference
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FAQs
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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 Buy a Specific EIP?
- Does an EIP Change Over Time?
- How Do I Query the Region of My EIPs?
- 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 Purchased EIP on the Management Console?
- 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?
- What Is Enhanced 95th Percentile Bandwidth Billing?
- Why Am I Still Being Billed After My EIP Has Been Unbound or Released?
- When Will I Be Billed for Reservation Price?
- EIP Binding and Unbinding
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Bandwidth
- 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 Is the Relationship Between Bandwidth and Upload/Download Rate?
- What Are the Differences Between Static BGP and Dynamic 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?
- Why Can't an EIP 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?
- Change History
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Product Consultation
How Do I Know If My EIP Bandwidth Limit Has Been Exceeded?
Symptom
The bandwidth size configured when you buy a dedicated or shared bandwidth is the upper limit of the outbound bandwidth. If an ECS running your web applications cannot be accessed smoothly from the Internet, check whether the outbound bandwidth of the EIP bound to the ECS is greater than the configured bandwidth size.
If the outbound bandwidth exceeds the configured bandwidth size, there may be packet loss. To prevent data loss, it is recommended that you monitor the bandwidth.
Troubleshooting
The issues here are described in order of how likely they are to occur.
Troubleshoot the issue by ruling out the causes described here, one by one.
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Possible Cause |
Description |
Solution |
---|---|---|
System processes leading to high bandwidth |
If some heavy-duty system processes or applications running on your ECS are causing the high bandwidth or CPU usage, your ECS will run slowly or may unexpectedly be inaccessible. |
|
Improper Cloud Eye alarm rules |
If you have created alarm rules for bandwidth usage on the Cloud Eye console, where the outbound bandwidth limit or the alarm period is set too small, the system may generate excessive alarms. |
|
EIP connection failure |
An ECS with an EIP bound cannot access the Internet. |
See Why Can't My ECS Access the Internet Even After an EIP Is Bound? |
System Processes Leading to High Bandwidth Usage
If some heavy-duty system processes or applications running on your ECS are causing the high bandwidth or CPU usage, your ECS will run slowly or may unexpectedly be inaccessible.
You can locate the processes that have led to excessively high bandwidth or CPU usage, and optimize or stop the processes.
Improper Cloud Eye Alarm Rules
If you have created alarm rules for bandwidth usage on the Cloud Eye console, where the outbound bandwidth limit or the alarm period is set too small, the system may generate excessive alarms.
You need to set an appropriate alarm rule based on your purchased bandwidth. For example, if your purchased bandwidth is 5 Mbit/s, you can create an alarm rule to report an alarm when the maximum outbound bandwidth reaches 4.8 Mbit/s three periods in a row. You can also increase your bandwidth.
- Log in to the management console, under Management & Deployment, click Cloud Eye. On the Cloud Eye console, choose Alarm Management > Alarm Rules.
- Click Create Alarm Rule and configure an alarm rule to generate alarms when the bandwidth exceeds the configured limit.
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