IDEAL INDUSTRIES UniPRO MGig1, Руководство пользователя

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152810 UniPRO
Page 36 User Guide
Transmission tests – set up and run
There are four transmission tests available on MGig1 - BERT, SLA-Tick, RFC2544 and NetSAM. MGig1
offers numerous options for the set-up of each test and the descriptions that follow are not exhaustive but
a general guide to the user.
BERT
Bit Error Ratio Test (BERT) checks the frame’s payload for bit errors and reports them as a ratio of the
total data received. For additional information see
BERT
on
page 19
.
To set up BERT on MGig1 proceed as follows: From the home screen select SETUP (F4). Select the
TESTS and then the BERT icon – the ‘Setup:BERT’ screens (Fig 44) are shown on the display. Select
MORE (F1) to toggle between screens.
A B
Fig 44
Target Select a target from the dropdown list. When testing over Layer 1 a target is not required.
Service BERT runs on one service only. Choose a service from the dropdown list. Note that when the
service selected has been setup with a Custom target (via SETUP>SERVICES) different to that chosen
from the Target list (above), then the target associated to the service will be used.
Test pattern Choose one of the test patterns from the dropdown list to fill the payload. When the ‘Word’
pattern is selected, enter a 4-digit hexadecimal number in Word .
Layer
Select Layer 1 for physical, non-addressable loop. Select Layers 2 to 4 according to the size of
payload required. See
Ethernet frame structure and Layers, paragraphs 1 & 2, page 15.
Info Rate Enter the Information Rate in Mb/s to set how much of the bandwidth you want to use for
BERT.
Frame Size
Select frame size from the dropdown list. The larger the frame size, the more bandwidth
remains for payload.
Duration Choose ‘continuous’ when you want the test to run until you select STOP (F1). Choose ‘User’
and then specify a period of up to 24 hours in User Duration .