# 阈值及黑洞类
- **[Anti-DDoS流量清洗阈值指什么？](https://support.huaweicloud.com/aad_faq/aad_01_0129.html)**   
- **[Anti-DDoS流量清洗阈值如何设置？](https://support.huaweicloud.com/aad_faq/aad_01_0130.html)**   
- **[如何调整封堵阈值？](https://support.huaweicloud.com/aad_faq/aad_01_0131.html)**   
- **[Anti-DDoS流量清洗免费提供的5Gbps攻击防护是否需要开通？](https://support.huaweicloud.com/aad_faq/aad_01_0133.html)**