defer func() { trace.ConnectDone(sd.network, raStr, err) }()
		}
	}
	la := sd.LocalAddr
	switch ra := ra.(type) {
	case *TCPAddr:
		la, _ := la.(*TCPAddr)
		if sd.MultipathTCP() {
			c, err = sd.dialMPTCP(ctx, la, ra)
		} else {
			c, err = sd.dialTCP(ctx, la, ra)
		}
	case *UDPAddr:
		la, _ := la.(*UDPAddr)
		c, err = sd.dialUDP(ctx, la, ra)
	case *IPAddr:
		la, _ := la.(*IPAddr)