Path measurement: Difference between revisions

Path measurement (view source)

Revision as of 14:28, 28 June 2021

1 byte added , 28 June 2021

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Ralf

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 ## Temporary network failure
 ##: In this event the packets are really lost on both directions so the loss graph may also look similiar. However, since no packet can be transmitted to the other side, you will also see no entries in the two-way-latency graph.
-# How is the two-way latency calculated?  The system monitors individual IP connections and stores the time difference between the occurrence of the same checksum on both the main and client devices. Since this time difference contains the unknown time drift between both systems, it cannot be used directly as a latency value. Instead, the system waits until a packet from the opposite direction has been seen on both systems. Both time differences for direction A->B and B->A build the actual two-way latency. Since both packets may not be directly related, it is not directly comparable with a round-trip time. It gives however an accurate view on how long data took transmitting back and forth during each individual time segment.
+# How is the two-way latency calculated?
+#:The system monitors individual IP connections and stores the time difference between the occurrence of the same checksum on both the main and client devices. Since this time difference contains the unknown time drift between both systems, it cannot be used directly as a latency value. Instead, the system waits until a packet from the opposite direction has been seen on both systems. Both time differences for direction A->B and B->A build the actual two-way latency. Since both packets may not be directly related, it is not directly comparable with a round-trip time. It gives however an accurate view on how long data took transmitting back and forth during each individual time segment.