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h5 with netem.rar

TBD

 

The packets were captured on H5, H4, H3 and H2 on eth2 links (ingress for echo requests). In parallel, d-cart system was used between H5 and H2 in order to verify the capturing results. Packets have been captured and the links monitored with D-cart for approx. one minute in both experiments.

The first set of results is here (captures are in 4 different formats, sorted by the MPLS label):

Capture from H2

Capture from H3 

Capture from H4 

Capture from H5 

D-cart results for this setup are here  

The format is the following:

  code timestamp seq_num delay

  code := 1 (loss or unordered packets), 2 (#hop change - not used in gts), 4 (significant delay change), 8 (heartbeat - every 100 packets)

 if the code is even then you have a H(istory) with the last packet received and its own info...

The sending calibration is: 1 dcart ping (smallest possible packets but "full" of extra info) each 100ms

 

In the second setup, netem tool was used on a link H4-H3 with the following parameters: delay 100ms 2ms distribution normal loss 10%

The set of results of the measurements with netem switched on on H4-H3 -H2 is here:

Capture from H2

Capture from H3 

Capture from H4 

Capture from H5 

D-cart results for this setup are here