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Recommendations on the number of TCP connections in Truespeed Layer 4 testing when using the Troubleshooting mode and manual configuration?

Question asked by viavisupport on Jan 17, 2017
Latest reply on Jan 17, 2017 by viavianswers
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Recommendations on the number of TCP connections in Truespeed Layer 4 testing
viavianswers
viavianswers Jan 17, 2017 9:01 AM
Correct Answer
If the user would like to use multiples TCP connections and is looking for a recommedation then a good rule of thumb is use 64 KB connections.
BDP = Link speed * RTT / 8 bytes
Then divide the BDP into 64, 000 bytes to get number of connections to use. This is not a requirement just a general recommendation.  There are a set of rules for BDP and how convert to connection size on automatic TrueSpeed Test.  Here is a snippet of the table:  BDP Connection size
64 KB – 128KB 16 KB
129 KB – 256 KB 32 KB
257 KB – 512 KB 64 KB 
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