QUIC协议下的网络探测技术

golang
// QUIC连接监测示例代码
type QUICProbe struct {
    Version    uint32
    ConnID     []byte
    Timestamps map[string]time.Time
}

func (p *QUICProbe) MeasureHandshake() {
    // 记录初始握手时间
    p.Timestamps["start"] = time.Now()
    
    // 监测0-RTT恢复
    if p.DetectEarlyData() {
        p.Timestamps["0rtt"] = time.Now()
    }
    
    // 完整握手完成时间
    p.Timestamps["established"] = time.Now()
    
    // 计算建链耗时
    duration := p.Timestamps["established"].Sub(p.Timestamps["start"])
    p.LogHandshakeMetrics(duration)
}

python
class QUICProbeSystem:
    def __init__(self):
        self.probes = {}
        self.metrics = {}
    
    async def probe_connection(self, target):
        # 创建QUIC探测连接
        probe = await self.create_probe_connection(target)
        
        # 性能指标采集
        metrics = await self.collect_metrics(probe)
        
        # 分析处理
        analysis = self.analyze_performance(metrics)
        
        return analysis        
    def analyze_performance(self, metrics):
        # 性能分析逻辑
        result = {
            'handshake_time': metrics['handshake_duration'],
            'throughput': metrics['data_transfer_rate'],
            'packet_loss': metrics['lost_packets'] / metrics['total_packets'],
            'rtt': metrics['average_rtt']
        }
        return result

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