Latency tuning Step 5: Optimize theapplication layer
Digi Connect Family and ConnectPort TSFamily
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Changing the options from their defaults may violate RFCs.
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Decrementing the values for these optionsincreases the amount of network activity. For
example, there will beincreased retransmissions.
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For a peer-to-peer application, you need to consider both sidesof the connection and how
optionsare set. For example, if the setting for the rto_min option for the Digi device is set to a
valuethat islessthan the setting for thedelayed_ack option for the other side of the
connection, then there will be a forced retransmission of every packet of data. For a master-
slaveapplication, this consideration doesnot apply.
Step 5: Optimize the application layer
Optimizing the application layer may include, but isnot limited to, these recommendations:
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Avoid having more than one application/network node generating time-sensitive traffic in the
network Haveone traffic generator in amaster-slavesetup on the network.
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Avoid running other (management) applications, such as email, image or mp3downloading
while time-sensitive traffic isrunning.
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Verify the application itself has timers that cause retransmissionsof data.
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Usefirewalls.
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