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ulb
Classic Load Balancer CLB
Product Introduction
Usage Limitations

Usage Limitations

Route Configuration

To ensure that the instance can correctly forward data to the backend service node, it is necessary to ensure that the firewall/route of the backend service node can allow access to the corresponding network segment, otherwise it may cause the host to fail to provide services normally.

The network segments of each region are seen in the Public Service Network Segment.

HTTP Message Header Limitations

The default message header size of CLB is 8K. When configuring, it needs to ensure that the HTTP message header size does not exceed 8K, otherwise it may make CLB unable to work normally.

Quota Limitations

Request Proxy Type CLB
Number of EIPs that a single instance can bind20
Number of instances that can be created in a single project and single region5
Number of monitors that a single instance can add50
Number of forwarding rules that a single instance can add (excluding default rules)50
Number of service nodes that can be added to a single instance50