A
L
B
E
D
O
T
e
l
e
c
o
m
-
J
o
a
n
d
’
À
u
s
t
r
i
a
,
1
1
2
-
B
a
r
c
e
l
o
n
a
-
0
8
0
1
8
-
w
w
w
.
a
l
b
e
d
o
t
e
l
e
c
o
m
.
c
o
m
User Guide
250
delay larger than the maximum. By definition, there are no packets with end-to-end
delay below the floor delay.
xGenius implement the floor delay population with the equipment configured in pseudo-
slave mode. The procedure to configure the equipment in this mode is the same that
for the MTIE / TDEV test (See section 9.3.2). If the equipment is configured in IP
endpoint mode, configuration of a IP profile is also necessary. This configuration is also
identical to the MTIE / TDEV test (See section 9.3.2). Once the IP profile, the external
reference and the pseudo-slave mode are all configured, these are the steps to follow
to run the floor delay population test:
1. From the Home panel, go to TEST,
The test configuration panel is displayed.
2. Go to Floor delay population test (FPP).
3. Configure Enable to On to activate the test
4. Enter the value of the Min. delay settling time if you want to modify the floor delay
calculation period.
5. Configure the FPC window length if you want to modify the time window to com-
pute the FPC, FPR and FPP metrics.
6. Modify the values of FPC delta and FPP threshold to change the default pass / fail
threshold for the FPP.
Table 9.11: Floor Delay Population Test Configuration Parameters
Setting Description
Enable Enables or disables the PTP floor delay population test.
Wander tests can be executed only if PTP test has been con-
figured to Wander test.
Obs. floor delay
method
It determines the procedure to measure the floor delay. The
only floor delay measurement method available today is Pro-
gressive.
The Progressive mechanism evaluates the floor delay along
the whole testing period but there is an initial period of con-
figurable length that is used to do a first estimate of this
parameter. In order to get the maximum accuracy in the test
results, the observed floor delay during the settling period
has to be as exact as possible. Variations of the floor delay
after the settling period are computed as an estimation
excess. Results are therefore less accurate as the estimation
excess becomes larger.
Min. delay settling
time
Amount of time devoted to compute the floor delay. Longer
values for this setting contribute to a more accurate estima-
tion of the floor delay and therefore higher quality in the test
results.
To Next Page