tencent cloud

Application Load Balancer

Use Limits

Download
Focus Mode
Font Size
Last updated: 2026-09-28 16:39:09
AI-Translated & Reviewed
This document describes the use limits of Application Load Balancer (ALB).

General Quota Limits

Instance Dimension

Resource Item
Default Limit
Supported Quantity
Whether It Can Be Increased
Number of instances that can be created for an account in a single region
60
Yes. Submit a ticket for consultation.
Number of listeners that can be added for an instance
50
Yes. Submit a ticket for consultation.
Number of forwarding rules that can be added for an instance
100, excluding the default rule
No.
Number of additional certificates that can be added for an instance
25, excluding the default certificate
Yes. Submit a ticket for consultation.
Number of target groups that can be added for an instance
100
No.
Number of backend services that can be added for an instance
10000
No.
Number of security groups that can be added for an instance
10
Yes. Submit a ticket for consultation.

Listener/Forwarding Rule Dimension

Resource Item
Default Limit
Supported Quantity
Whether It Can Be Increased
Number of target groups that can be added for a forwarding rule
5
No.
Number of forwarding conditions that can be added for a forwarding rule
10
No.
Number of match condition entries that can be added for a forwarding rule
10
No.
Number of forwarding actions that can be added for a forwarding rule
5
No.

Target Group Dimension

Resource Item
Default Limit
Supported Quantity
Whether It Can Be Increased
Number of target groups that can be created for an account in a single region
1000
Yes. Submit a ticket for consultation.
Number of backend services that can be added for a target group
1000
No.
Number of times a backend service (IP address) can be added for a target group
200
No.
Number of forwarding rules that can be bound to a target group
50
Yes. Submit a ticket for consultation.

Other Dimension

Resource Item
Default Limit
Supported Quantity
Whether It Can Be Increased
Number of listeners that can be associated with a cipher suite template
10
No.

Capacity Specification Dimension

The performance metrics for a single virtual IP address (VIP) are listed in the following table and cannot be adjusted.
Metric Name
Maximum Specification
QPS
500,000
CPS
200,000 per second
Maximum Number of Concurrent Connections
5,000,000
Outbound Bandwidth
25Gbps
Inbound Bandwidth
25Gbps
Note:
The public network bandwidth of a public ALB instance equals the sum of the bandwidth of all elastic IPs (EIPs) under the instance. By default, the public network bandwidth of a single EIP is 200 Mbps. If an ALB instance is deployed in 2 AZs (2 EIPs are used), the bandwidth cap for the ALB instance is 400 Mbps.

Region Dimension

Currently, only Guangzhou is supported. Other regions will be available soon. For the specific supported regions, refer to the purchase page.


Help and Support

Was this page helpful?

Help us improve! Rate your documentation experience in 5 mins.

Feedback