## 4 Test Results
### End-to-End Ethernet Tests  
Finally, let us present the results of the end-to-end Ethernet measurements according to Rec. RFC 2544 [2].  
As the tests are end-to-end, this implies testing at the L3 OSI layer (i.e., transmission of IP packets instead of Ethernet frames).  
At the far end (Leotar), the main Ethernet tester (traffic generator) was set up, whereas in Sarajevo, the SW loopback instrument was positioned (Figure 4).  
The out-of-service (OoS) test model was applied (Figure 17).  
The setup and test results concern data traffic (e.g., internet access) configured for transmission by VLAN 370, with a DSCP value equal to 0 (Best Effort class), and the lowest (null) priority.  
In Table 2, the Ethernet test settings are shown, whereas the exemplar diagrams of throughput, latency, and frame loss rate are presented in Figures 18-20, respectively. Jitter and maximal lossless packet transmission rate (back-to-back packets) are given in Tables 3 and 4, respectively.  
Figure 16: Prediction for the fifth RR section; 128 QAM, 323 Mb/s.  
Figure 17: End-to-end Ethernet testing on the RR system under test.  
Figure 18: Throughput.  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Test Information** & \multicolumn{2}{c}{**Test Configuration**} \\ \hline Overall Result & \multicolumn{2}{c}{Termination} & \begin{tabular}{c} 10/100/1000 Ethernet \\ L3 Traffic \\ \end{tabular} \\ \hline Test Name & \begin{tabular}{c} 10/100/1000 Ethernet \\ L3 Traffic \\ \end{tabular} & Framing & DIX \\ \hline Start Time & 11/01/19 01:33:26 PM & VLAN Tagging & Tagged \\ \hline End Time & 11/01/19 02:03:18 PM & VLAN ID & 3701 \\ \hline Customer & BHT & User Priority & 0 \\ \hline Technician & \multicolumn{2}{c}{Source IP} & 10.37.78.74 \\ \hline Location & LEOTAR & Destination IP & 10.37.80.66 \\ \hline Mode & Symmetric & & \\ \hline Software Version & 3.0.0 F7E2 ED & & \\ \hline Negotiation Status & \multicolumn{2}{c}{RFC 2544 Setup} & \\ \hline AutoNeg & \begin{tabular}{c} 1000 FDX, 1000 HDX, \\ 100 FDX, 100 HDX, \\ 10 FDX, 10 HDX \\ \end{tabular} & Tests to Run & \begin{tabular}{c} Throughput, Latency \\ (RTD), Packet Jitter, \\ Frame Loss Rate, \\ Back-to-Back Frames \\ \end{tabular} \\ \hline Link Advt. Status & Done & Packet Lengths & 64, 512, 1500 \\ \hline Link Config ACK & Yes & Max Test Bandwidth & 20\% \\ \hline Remote Fault & No & \begin{tabular}{c} Bandwidth \\ Measurement \\ Accuracy \\ \end{tabular} & To within 1\% \\ \hline Speed & 1000 & \
\begin{tabular}{c} Throughput Frame \\ Loss Tolerance \\ \end{tabular} & 0\% \\ \hline Duplex & Full &
\begin{tabular}{c} Throughput Trial \\ Duration \\ \end{tabular} & 30 s \\ \hline
1000 Base-T FDX & Yes &
\begin{tabular}{c} Throughput Pass \\ Threshold \\ \end{tabular} & 20\% \\ \hline
1000 Base-T HDX & No &
\begin{tabular}{c} Number of Latency \\ (RTD) Trials \\ \end{tabular} & 5 \\ \hline
100 Base-T FDX & Yes &
\begin{tabular}{c} Latency (RTD) Trial \\ Duration \\ \end{tabular} & 30 s \\ \hline
100 Base-T HDX & No &
\begin{tabular}{c} Latency (RTD) Pass \\ Threshold \\ \end{tabular} & 10,000.0 \(\upmu\)s \\ \hline
10 Base-T FDX & Yes &
\begin{tabular}{c} Frame Loss Trial \\ Duration \\ \end{tabular} & 5 s \\ \hline
10 Base-T HDX & No & \begin{tabular}{c} Frame Loss \\ Bandwidth \\ Granularity \\ \end{tabular} & 1\% \\ \hline  & \begin{tabular}{c} Number of \\ Back-to-Back Trials \\ \end{tabular} & 5 \\ \hline  & \
\begin{tabular}{c} Back-to-Back Frame \\ Granularity \\ \end{tabular} & 1 \\ \hline  &
\begin{tabular}{c} Back-to-Back Max \\ Trial Time \\ \end{tabular} & 2 s \\ \hline \hline \end{tabular}
\end{table}
Table 2: Ethernet test settings [15; 16].  
Figure 19: Latency.  
Figure 20: Packet loss (for packet size of 1500 Bytes).