Haxxio UDP Serial Port Redirector
Timer Interval Selection
Field Specific Help
This dropbox selects how frequently the Redirector considers transmitting a packet of data.


If the UDP Transmit Mode Selection is set for "No Transmissions" then this setting does not appear.


The appropriate setting of this variable is the most critical tuning setting for the Redirector. Generally, the higher the baud rate of the connecting application, and the greater volume of data that needs to be sent, and the faster the application response time needs to be, then the shorter should be the inter packet interval.


If the transmit frequency is too great, then many short packets of data will be sent, which is generally considered wasteful of network bandwidth. If the transmit frequency is too low, then a small number of large packets will be sent. This is good from the network's perspective, but may introduce unacceptable delays into the communication process.


A number of statistics are provided to help you optimize your setting, see Maximum Block Size and Average Packet Size statistics.


A single UDP packet can hold 1492 bytes of data. If in a single transmit slot the Redirector has more than 1492 bytes of data to send, then an "Oversize" indicator will appear. This does not mean that either an oversize packet has been sent (which would be illegal from the network's perspective) or that data has been lost; merely it indicates that two or more packets have been sent in this time interval. Whether this is acceptable or not depends on the receiving application. If there is something special about a packet, then it may matter. if the data is just transmitted as a stream, then there is probably not going to be any negative impacts.

To return to the Haxxio UDP Serial Redirector information page, click here