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Old 08-10-2015, 12:29 PM   #1
danmartinj
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Registered: Oct 2009
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Linux IPef UDP Test Find Latency Question


Hello,

I have some network and linux test experience so I have been asked to help conduct some network tests on company products. Essentially, I have 2 linux laptops that are connected "ethernet bridged" with the network device under test and I have been using Iperf as the main test tool using its UDP payload.

In this environment UDP reports on jitter, packet loss, throughput and payload size. However, I have been just asked to try to find latency also. The problem I have is I did not originally test for latency and for data all I have is what Iperf reports by default and I did script up a program using netsniff-ng which takes 15 second pcap samples on the receiver laptop. The problem continues because they took the devices away from me so I cannot simply just re-test I only have the pcap file and Iper log file to work with.

My question is using the pcap file which contains only UDP Iperf data is there a way to get some idea of the network latency? I also took a couple tests using video traffic which goes over TCP, so I am guessing I should be able to get latency that way at least?

Thanks for any comments or advice,

Joe
 
Old 08-11-2015, 02:48 PM   #2
nini09
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Iperf report could include latency.
 
  


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