Xtramus APMPT-4 V2.4 User Manual

Page 60

Website: www. Xtramus.com

XTRAMUS TECHNOLOGIES



VLAN Setting: Add VLAN tag for test. VLAN (Virtual LAN) is

a group of hosts with common requirements that

communicate within the same Broadcast domain regardless

of the physical location. By clicking the Setup button, you

can configure CoS (class of service) and VID (VLAN ID) on

the pop-up VLAN Setup window. Click Apply and apply all

the changes you‟ve made here.



MAC Address Setting: Selecting this funtion will allow

you to access the Setup option. Clicking the Setup

option will pop up a window to modify each module
card‟s port MAC Address.



Enable Smart Burst Gap: The Smart Burst Gap function is

for half-duplex mode only. Enabling this function will increase

test performance and decrease test fail rate.



Enable Backoff limit-4: The Backoff limit-4 function is for half-duplex mode only, and its purpose is

for collision control. Enabling this function will increase test performance and decrease test fail rate.



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.



Insert Elongated Frame Gap: 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.

For XM-RM-8XX modules, you can set the value of the Insert Elongated Frame Gap from the scroll

down menu.



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 S/N Error Check: APMPT-

4 will check DUT‟s serial number during test if this function is

enabled.



Enable Flow Control: When enabling this function, the transmitting rate will drop if traffic overflow

occurs. This function must be enabled under full-duplex.



Enable DI Checksum: This function is used to track the integrity of a frame. After enable this

function, you can choose whether to enable With X-TAG and Auto Check X-TAG offset.

 With X-TAG: Enable this sub-function only to check the frames with X-TAG.