Xtramus APMPT-4 V2.4 - Manual (Page 87)

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on the pop-
up VLAN Setup window. Click Apply and apply all the changes you‟ve made here.
 Learning Setting: Enabling this function allows learning packets transmitted to the DUT before
test packets are transmitted. If you disable this function, no learning packets will be transmitted.
 Enabled Learning: Enable system to perform learning.
 Broadcast: Select the learning packet mode for Broadcast.
 Unicast: Select the Learning packet mode for Unicast.
 Frame Count: Repeat frame count per learning packets burst.
 Frame Gap: Duration time between learning frames.
 Delay Time after Learning: The time gap between after learning and the next process.
 Media Setting:
 Media Type: You can set the media type for packet transmission or turn OFF.
 Waiting Time: You can set the amount of waiting time after the media type is changed in this
field. This function will tu
rn gray and can‟t be accessed if you select OFF under Media Type.
 Link Status Check: Check the link status of your system, you can select the ON&Alarm
mode for snooze and pop up window.

Insert Elongated Frame Gap: This function is only for XM-RM-8XX modules. When enabling this
function, 1 bit-time of frame gap will be inserted after a certain amount of packets are transmitted,
and therefore, decrease packet loss.

Weak Back-off Mechanism: When packet collision occurs, the system will wait for at least 1
slot-time before starting to transmit packets again if this function is enabled.

Enable X-TAG and Check: X-TAG is a 12-byte tag which is developed by Xtramus and
embedded at 45th~56th bytes of each testing frames generated by Rapid-Matrix for multi-stream
tests. X-TAG will be added to all the testing frames generated by APMPT-4.

Wait for Read Counter: The system will halt for the set microseconds before read the counters.
This function is useful for counters since they are stored in memory buffer and the final counter
value might take some time to read.

Enable Flow Control: When enabling this function, the transmitting rate will drop if traffic overflow