anchor.diff:  
   [.text-center]
   .Comparison of RTT through different Switches (35min)
  -image::udp/rtt-switch-comparison.png[link="../images/udp/rtt-switch-comparison.png", width="100%"]
  +image::udp/rtt-switch-comparison.png[link="{imagesdir}/udp/rtt-switch-comparison.png", width="100%"]
   
   The figure below shows a zoomed view of the time series highlighting the added jitter characteristics. Modes 1 and 3 do not seem to be affected by additional switches. Mode 2 remains constant at 210 us and disappears for higher round-trip times, indicating an issue at the receiving step of the sender.
   
   [.text-center]
   .Zoomed in view of Switch comparison (10min)
  -image::udp/comparison-switch-latency.png[link="../images/udp/comparison-switch-latency.png", width="100%"]
  +image::udp/comparison-switch-latency.png[link="{imagesdir}/udp/comparison-switch-latency.png", width="100%"]
   
   Both KSZ8863 and the RB750Gr2 add a constant switching latency of 2.9 us and 3.6 us in addition to the wire time of 40.6 us and 4.06 us respectively to the RTT. The added jitter seems to be negligible at well below 1us. Surprisingly, the GS105 seems to have problems with this use case, resulting in higher latency and more jitter than the KSZ8863 even though it was connected using Gigabit. More details are in the table below.
   
  
positive.code: 
  [.text-center]
  .Operating system jitter of Scientific Linux 6.6 with MRG Realtime
  image::udp/os-jitter-linux-rt.png[link="../images/udp/os-jitter-linux-rt.png", width="100%"]
  
  The two figures below show the round-trip time for each measurement. It may be surprising, but there was again no packet loss or re-ordering of packets from any single source. 
  
  
negative.code: 
  [.text-center]
  .Benchmark setup with additional Switch
  image::udp/setup-switching-cost.png[link="{imagesdir}/udp/setup-switching-cost.png", width="100%"]
  
  For this benchmark we tested the three following Switches and added them individually to the baseline setup as shown above,
  
  