PTP - Experiment results

  • Experiment 1

3 nodes which are connected in chain topology. Clock delta time are calculated between the grand master node, the first and second slaves. Different experiments show the different sampling methods. The term redundancy filtered refers to eliminating equal consecutive samples. The following graph shows the topology setup.

Setup 1

  • sampling step is 500 ms
  • number of samples 1200
  • redundancy filtered

Ptp 1 2.png
Enlarge
370 px
Ptp 1 3.png
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370 px
Ptp 2 3.png
Enlarge
370 px


Setup 2
  • sampling step is 100 ms
  • number of samples 1200
  • redundancy not filtered

Ptp 1 2 w 100.png
Enlarge
370 px
Ptp 1 3 w 100.png
Enlarge
370 px
Ptp 2 3 w 100.png
Enlarge
370 px


Setup 3
  • sampling step is 100 ms
  • number of samples 1200
  • redundancy filtered

Ptp 1 2 100.png
Enlarge
370 px
Ptp 1 3 100.png
Enlarge
370 px
Ptp 2 3 100.png
Enlarge
370 px

Original Source

*'''Experiment 1'''
<br>
3 nodes which are connected in chain topology. Clock delta time are calculated between the grand master node, the first and second slaves. Different experiments show the different sampling methods.
The term redundancy filtered refers to eliminating equal consecutive samples. The following graph shows the topology setup.

'''Setup 1'''

*sampling step is 500 ms
*number of samples 1200
*redundancy filtered

[[Image:Ptp_1_2.png|thumb|370 px|left|Master and first slave]]
[[Image:Ptp_1_3.png|thumb|370 px|right|Master and second slave]]
[[Image:Ptp_2_3.png|thumb|370 px|center|First slave and second slave]]

<hr> 
'''Setup 2'''
*sampling step is 100 ms
*number of samples 1200
*redundancy '''not''' filtered

[[Image:Ptp_1_2_w_100.png|thumb|370 px|left|Master and first slave]]
[[Image:Ptp_1_3_w_100.png|thumb|370 px|right|Master and second slave]]
[[Image:Ptp_2_3_w_100.png|thumb|370 px|center|First slave and second slave]]

<hr> 
'''Setup 3'''
*sampling step is 100 ms
*number of samples 1200
*redundancy filtered

[[Image:Ptp_1_2_100.png|thumb|370 px|left|Master and first slave]]
[[Image:Ptp_1_3_100.png|thumb|370 px|right|Master and second slave]]
[[Image:Ptp_2_3_100.png|thumb|370 px|center|First slave and second slave]]
Topic attachments
I Attachment Action Size Date Who Comment
pngpng Ptp_1_2.png manage 7.8 K 04 Nov 2009 - 19:17 Main.UnknownUser  
pngpng Ptp_1_2_100.png manage 8.1 K 04 Nov 2009 - 19:17 Main.UnknownUser  
pngpng Ptp_1_2_w_100.png manage 7.8 K 04 Nov 2009 - 19:17 Main.UnknownUser  
pngpng Ptp_1_3.png manage 8.6 K 04 Nov 2009 - 19:17 Main.UnknownUser  
pngpng Ptp_1_3_100.png manage 7.9 K 04 Nov 2009 - 19:17 Main.UnknownUser  
pngpng Ptp_1_3_w_100.png manage 7.9 K 04 Nov 2009 - 19:17 Main.UnknownUser  
pngpng Ptp_2_3.png manage 8.2 K 04 Nov 2009 - 19:17 Main.UnknownUser  
pngpng Ptp_2_3_100.png manage 8.1 K 04 Nov 2009 - 19:17 Main.UnknownUser  
pngpng Ptp_2_3_w_100.png manage 7.7 K 04 Nov 2009 - 19:17 Main.UnknownUser  
Topic revision: r1 - 09 Feb 2009 - 22:04:04 - Gac1