Cloud Firewall provides the burstable protected traffic feature to ensure continuous online protection of business for large-scale sales promotion scenarios, protection for major events, or short-term business spikes of enterprises in the cloud, such as business transaction spikes at a specific point in time every day and unexpected business traffic spikes. The feature provides protection for the traffic bandwidth that exceeds the purchased traffic protection bandwidth, which is referred to as excess traffic. The excess traffic is billed on a pay-as-you-go basis. This topic describes how to use the burstable protected traffic feature.
Introduction to the burstable protected traffic feature
The burstable protected traffic feature is provided for Cloud Firewall that uses the subscription billing method and is billed on a pay-as-you-go basis. You can use pay-as-you-go savings plans to offset fees and reduce more costs.
Scenarios
Periodic traffic spikes that last a short period of time, such as a business transaction spike between 9:00 and 9:30 each morning.
Occasional traffic spikes, such as unexpected traffic spikes in business changes or business call changes.
Large-scale sales promotions or major events, such as traffic spikes during Double 11 or attack and defense drills for major events.
Applicable scope
Supported firewalls
Internet firewall
NAT firewalls
Virtual private cloud (VPC) firewalls
Supported editions
Premium Edition, Enterprise Edition, and Ultimate Edition
Supported purchase types
New purchase, upgrade, and downgrade
Billing
Billable item | Unit price | Description |
Burstable Protected Traffic | - | By default, the burstable protected traffic feature is disabled. If you want to enable the burstable protected traffic feature, set the Burstable Protected Traffic parameter to Yes on the Cloud Firewall buy page. |
Unit price per GB of traffic | USD 0.06 per GB | The excess traffic at the Internet, NAT, and VPC boundaries are billed based on the applicable price, and bills are generated on the next day. You can use pay-as-you-go savings plans to offset the bills. By default, up to 1,000,000 GB of excess traffic can be processed per day. Fees are calculated by using the following formulas:
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To reduce costs, you can use pay-as-you-go savings plans together with the burstable protected traffic feature. The following table describes the specifications of pay-as-you-go savings plans. For more information, see Pay-as-you-go savings plans.
Parameter | Description |
Savings Plan Type | The all upfront payment method is supported. You can select one of the following types of savings plans based on your committed consumption amount, and enter a number within the amount range.
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Committed consumption amount | The committed consumption amount in a savings plan specifies the minimum amount that you commit to consuming within the subscription duration that you specified. You must specify a committed consumption amount when you purchase a pay-as-you-go savings plan. You cannot change the committed consumption amount before the savings plan expires. You can estimate a committed consumption amount based on the number of public IP addresses that you want to protect and the volume of your traffic. The committed consumption amount is calculated by using the following formula: Committed consumption amount = Daily fee × Subscription duration (days) × Discount. Important After you purchase a pay-as-you-go savings plan, you cannot claim a refund. You must consume the entire amount specified in the savings plan within the subscription duration. After the savings plan expires but the amount is not used up, you cannot unsubscribe from the savings plan or claim a refund for the remaining amount. We recommend that you use Cloud Firewall based on the pay-as-you-go billing method for one to seven days and then calculate the required committed consumption amount based on the generated fees. For more information about the billable items of Cloud Firewall that uses the pay-as-you-go billing method, see Pay-as-you-go. |
Subscription duration | 3 months, 6 months, or 1 year. |
Incentives
After you enable the burstable protected traffic feature, you can receive a free quota of 10 GB on burstable protected traffic each day. The free quota is applicable to the excess traffic at the Internet boundary, NAT boundary, and VPC boundary.
Discounts are available for pay-as-you-go savings plans on the official website.
Enable the burstable protected traffic feature
New user
Go to the Cloud Firewall buy page and set the Burstable Protected Traffic parameter to Yes. After you enable the burstable protected traffic feature, if excess traffic is generated, bills are generated on the next day.
Existing user
Go to the Upgrade page and set Burstable Protected Traffic to Yes to enable the burstable protected traffic feature by upgrading Cloud Firewall. After you enable the burstable protected traffic feature, if excess traffic is generated, bills are generated on the next day. For more information about how to upgrade Cloud Firewall, see Upgrade. The upgrade operation immediately takes effect. You can perform an upgrade only once a day.
Disable the burstable protected traffic feature
If you no longer require the burstable protected traffic feature, you can disable the feature by downgrading Cloud Firewall. To disable the feature, go to the Downgrade page and set the Burstable Protected Traffic parameter to No. After you disable the burstable protected traffic feature, bills for the current day are generated on the next day. For more information, see Downgrade. The downgrade operation immediately takes effect. You can perform a downgrade only once a day.
Billing examples
A finance and securities company adds 5 public IP addresses, including 2 public IP addresses of Server Load Balancer (SLB) instances, 2 elastic IP addresses (EIPs) of Elastic Compute Service (ECS) instances, and 1 EIP of a NAT gateway, to the Internet firewall of Cloud Firewall for protection. The company also purchases a protected Internet traffic bandwidth of 10 Mbit/s. The actual peak inbound traffic of the company is 46.26 Mbit/s and the peak outbound traffic is 143.54 Mbit/s in the previous 7 days. The normal peak traffic of daily business is 10 to 20 Mbit/s, which occasionally spikes to 100 to 150 Mbit/s and lasts for approximately 10 to 20 minutes. Over the previous 7 days, the excess traffic bandwidth was 133.54 Mbit/s, and the total volume of the excess traffic was 167.69 GB.
The following section describes the costs of the three methods to help you compare the methods and understand the benefits of the burstable protected traffic feature.
Monthly fee for excess traffic by scaling out the bandwidth
133.54 Mbit/s × USD 7 per Mbit/s per month = USD 934.78 per month
Monthly fee for excess traffic by using the burstable protected traffic feature
(167.67 GB - 7 × 10 GB) × USD 0.06 per GB = USD 5.86. USD 5.86/7 days × 30 days = USD 25.11. Compared with scaling out the bandwidth, you can save USD 909.67 per month.
Monthly fee by using the burstable protected traffic feature together with a pay-as-you-go savings plan
You can purchase a pay-as-you-go savings plan of USD 80 to enjoy the discounts on the official website or discounts for key accounts, such as a 50% discount for promotions in June.
USD 80 × 50% promotional discount × 95% tiered discount = USD 38. Compared with the fees for excess traffic by scaling out the bandwidth, you can save USD 871.67 per month.
References
For more information about pay-as-you-go savings plans, such as offset rules, purchase operations, and how to view the usage, see Pay-as-you-go savings plan.
For more information about the billing details and billing cycle of Premium Edition, Enterprise Edition, and Ultimate Edition of Cloud Firewall that uses the subscription billing method, and how to purchase Cloud Firewall by using the subscription billing method, see Subscription.