OC3port Plus
Users Manual
5-24
One further difference between UNI and NNI cells is that the VPI address range
for UNI is 0 - 255 while the address range for NNI is 0 - 4095.
Depending on the type of network you are connecting to, you need to set the
OC3port Plus so that the header type (either UNI or NNI) conforms to the ATM
cell structure of that network. Follow these instructions to define the header type
for the network you are testing:
1.
Press the
ATM
key. The
ATM SELECTIONS
menu is displayed.
2.
Press the
Down Arrow
key until
ATM Options
is on the selection line. Press
ENTER
. The
ATM OPTIONS
submenu is displayed.
3.
Press the
Down Arrow
key to move the
Header Type
option to the selection line,
as in:
ATM OPTIONS:
Bckgrnd Traffic IDL
Header Type UNI
PCR/SCR Entry MBS
za077f.eps
This option has two settings:
UNI
(the default) and
NNI
.
4.
Press the
Left
or
Right Arrow
key to select the desired setting.
The OC3port Plus is now set up to use the setting you selected as the current
value of the
Header Type
option.
Changing the Form for Expressing the PCR and SCR
The default form for expressing the
PCR
and
SCR
parameters is in megabits per
second (
MPBS
). You can change the default representation to a percent (
%BW
) or
cells per second (
CPS
). To do this, follow these steps:
1.
Press the
ATM
key. The
ATM SELECTIONS
menu is displayed.
2.
Press the
Down Arrow
key until
ATM Options
is on the selection line. Press
ENTER
. The
ATM OPTIONS
submenu is displayed.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
