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OC3port Plus
User Manual
2-point CDV Test
A 2-point CDV test is concerned with cell delivery times, specifically with the
actual delay experienced by cells transmitted between two points in a network.
During this test, the OC3port Plus captures a sample of cells and calculates the cell
transfer delay. The tester reports the delay in cell times.
Setting Up a 2-point CDV Test
The OC3port Plus, at best, can guarantee a CDV of two cell times
for each transmission stream. Therefore, a minimum CDV test result
that uses the OC3port Plus as a source will be 2.0 cell times.
The same OC3port Plus analyzer must be used in this test as both the
source and receiver of test traffic because the transmit and receive
time stamps must originate from the same timing source.
The operation of this test depends on the transmit stream definitions
selected when the test is run. If, for example, TRANSMIT STREAM 3
is used to perform the test, only cells that have headers matching this
stream are analyzed.
To set up the OC3port Plus to perform a 2-point CDV test, complete these steps:
1. Press the
2. Press the
selection line. Then, press
is displayed. For example:
3. Press the
want to configure.
4. Press the
want to program to the selection line. Then, supply the desired values.
Make sure that the
6-70
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Note
key. The
ATM
ATM SELECTIONS
key to move the
Down Arrow
. One of the
ENTER
TRANSMIT STREAM:
or
for Change
NAME:XMITHDR_1
SOURCE CBR
or
key to display the transmission stream that you
Left
Right Arrow
key to move the header and traffic parameters that you
Down Arrow
Note
PAYLOAD
menu is displayed.
option to the
Setup XMIT Streams
TRANSMIT STREAM
1
parameter is set to
.
FIXED
setup menus
za063f.eps
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