What Are the Impacts When QPS Exceeds the Allowed Peak Rate?

If the QPS specifications you select cannot handle the daily peak traffic of protected website or application services, WAF stops protecting your website. This will cause traffic limiting, random packet loss, automatic bypassing of WAF. As a result, your services may become unavailable, frozen, or respond very slowly for a certain period of time.

Table 1 lists the QPS specifications supported by each WAF edition.

**Table 1** QPS specifications supported by WAF
Edition	Peak Rate of Normal Service Requests	Peak Rate of CC Attack Defense
Standard	2,000 QPS	100,000 QPS
Professional	5,000 QPS	200,000QPS
Platinum	10,000 QPS	1,000,000 QPS
Dedicated mode	The following lists the specifications of a single instance. Specifications: WI-500. Referenced performance: HTTP services - Recommended QPS: 5,000. Maximum QPS: 10,000. HTTPS services - Recommended QPS: 4,000. Maximum QPS: 8,000. WebSocket service - Maximum concurrent connections: 5,000 Maximum WAF-to-server persistent connections: 60,000 Specifications: WI-100. Referenced performance: HTTP services - Recommended QPS: 1,000. Maximum QPS: 2,000. HTTPS services - Recommended QPS: 800. Maximum QPS: 1,600 WebSocket service - Maximum concurrent connections: 1,000 Maximum WAF-to-server persistent connections: 60,000	Specifications: WI-500. Referenced performance: Maximum QPS: 20,000 Specifications: WI-100. Referenced performance: Maximum QPS: 4,000