RTC测试网络推荐

数据指标

收集相关的测试数据，用于性能分析，问题定位等

指标	说明	备注
Sending rate / Receiver rate / Good throughput	发送速率 / 接收速率 / 有效吞吐	推荐间隔，200ms
Packets sent / Packets received	发送包的总数量 / 接收包的总数量
Bytes sent / Bytes received	发送的总字节数 / 接收到的总字节数
Packet delay	每个包的延迟
Packets lost / Packets discarded	传输丢包数量 / jittle buffer 或播放器丢包数量
Post-repair loss	通过重传或FEC恢复出来的包
Convergence time	收敛时间，从启动或网络突变到稳定状态所需的时间
Instability or oscillation in the sending rate	发送码率波动，两个边界值之间切换的次数	两边界的比值一般设为4
Bandwidth Utilization	带宽利用率

网络参数配置推荐

参数	说明	备注
One-way Propagation Delay	Very low latency	0-1ms
	Low latency	50ms
	High latency	150ms
	Extreme latency	300ms
End-to-end Loss	no loss	0%
	very low	1%
	low	5%
	high	10%
	very high	20%
DropTail Router Queue Length	QoS-aware (or short)	70ms
	Nominal	300-500ms
	Buffer-bloated	1000-2000ms
Loss generation model	Uniform
	Gaussian
	Burst
Traffic Models	TCP traffic	Long-lived TCP flows / Short TCP flows
	UDP traffic	Constant bit rate (CBR) flow
Video model	Behavior of a video encoder	Video traces
Jitter model	Packet Delay Variation (PDV)	Receiver side