NDT-DEV email list created

Revision: 584
Author:   

Date:     Thu Sep  1 09:38:42 2011
Log:      Added links to speed estimate.
http://code.google.com/p/ndt/source/detail?r=584

Modified:
 /wiki/NDTTestMethodology.wiki

=======================================
--- /wiki/NDTTestMethodology.wiki       Thu Sep  1 09:32:11 2011
+++ /wiki/NDTTestMethodology.wiki       Thu Sep  1 09:38:42 2011
@@ -161,7 +161,7 @@

 A duplex mismatch is detected by the Old Duplex-Mismatch algorithm when  
all of the following conditions are met:
  * The cumulative time spent in the 'Congestion Limited' state *is greater  
than 90% of the total test time*
- * The speed estimate *is greater than 2000000 bits per second*
+ * The [NDTTestMethodology#Speed_estimate speed estimate] *is greater than  
2000000 bits per second*
  * The number of segments transmitted containing at least some  
retransmitted data *is greater than 2 per second*
  * The maximum slow start threshold, excluding the initial value, *is  
greater than 0*
  * The cumulative time of the expired retransmit timeouts RTO *is greater  
than 1% of the total test time*
@@ -180,7 +180,7 @@

 === Link Type Detection Heuristics ===

-The following link type detection heuristics are run only when there is no  
duplex mismatch condition detected and the measured throughput value is the  
same or smaller than the estimate (which is a correct situation).
+The following link type detection heuristics are run only when there is no  
duplex mismatch condition detected and the  
[NDTTestMethodology#Web100_measured_speed web100 measured speed] is the  
same or smaller than the [NDTTestMethodology#Speed_estimate speed estimate]  
(which is a correct situation).

 ==== DSL/Cable modem ====

@@ -188,7 +188,7 @@
  * The cumulative time spent in the 'Sender Limited' state *is less than  
0.6 ms*
  * The number of transitions into the 'Sender Limited' state *is 0*
  * The [NDTTestMethodology#Web100_measured_speed web100 measured speed]  
*is less than 2000000 bits per second*
- * The [NDTTestMethodology#Web100_measured_speed web100 measured speed]  
*is less than estimate*
+ * The [NDTTestMethodology#Web100_measured_speed web100 measured speed]  
*is less than* [NDTTestMethodology#Speed_estimate speed estimate]

 ==== IEEE 802.11 (!WiFi) ====

@@ -196,7 +196,7 @@
  * The heuristic for DSL/Cable modem link *gives negative results*
  * The cumulative time spent in the 'Sender Limited' state *is 0 ms*
  * The [NDTTestMethodology#Web100_measured_speed web100 measured speed]  
*is less than 5000000 bits per second*
- * The speed estimate *is greater than 52428800 bits per second*
+ * The [NDTTestMethodology#Speed_estimate speed estimate] *is greater than  
52428800 bits per second*
  * The number of transitions into the 'Receiver Limited' state *is the  
same* as the number of transitions into the 'Congestion Limited' state
  * The cumulative time spent in the 'Receiver Limited' state *is greater  
than 90% of the total test time*

@@ -281,6 +281,8 @@
  * *!DataBytesOut* - The number of octets of data contained in transmitted  
segments, including retransmitted data.
  * *!TotalTestTime* - [NDTTestMethodology#Total_test_time Total test time]

+The web100 measured speed is kept in mbits per second.
+
 === Packet loss ===

 The packet loss proportion is computed using the following formula:
@@ -347,4 +349,4 @@
  * *AvgRTTSec* - [NDTTestMethodology#Average_RTT_in_seconds Average RTT in  
seconds]
  * *!PktsLoss* - [NDTTestMethodology#Packet_loss Packet loss]

-The speed estimate is kept in mbits.
+The speed estimate is kept in mbits per second.