OC3port Plus
User Manual
6-20
3.
Make sure that the
Start Cell Capture
option is on the selection line. Then,
press
ENTER
. You see this display:
CELL CAPTURE STATE
- - - - - - - - - - - - - - - - - - - - - - - -
CAPTURE: TRIGGER RCVD
za098f.eps
The OC3port Plus immediately begins to fill the capture buffer with cells.
When the buffer is full, the contents are displayed to you on the LCD. See
"Looking at the Captured Cells", which follows for an explanation of the cell
capture result displays.
Looking at the Captured Cells
When you run a Cell Capture, the OC3port Plus immediately displays results to
you on its LCD. Following is a sample display of the information provided about
Cell 0001, the first cell captured by the OC3port Plus:
0001)000 - 00000 0.00u
01-05:6a - 6a - 6a - 6a - 6a
06-10:6a - 6a - 6a - 6a - 6a
11-15:6a - 6a - 6a - 6a - 6a
za099f.eps
Note
The first cell in the buffer, Cell 0001, is always the cell that triggered
the capture.
This information, which is displayed on four lines, tells you the following:
•
Line 1
The first field contains the number of the cell you are currently
viewing. In this example, you are viewing Cell 0001. This field is
followed by the VPI (000), VCI (00000), and the cell’s time stamp
(
u
stands for microseconds and
m
stands for milliseconds).
•
Line 2
Contains hexadecimal representation (6a) of payload bytes 1 - 5.
•
Line 3
Contains hexadecimal representation (6a) of payload bytes 6 - 10.
•
Line 4
Contains hexadecimal representation (6a) of payload bytes 11 - 15.
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