Promax 27 Manuel page 117

USER'S MANUAL. PROMAX-27
In the case of IPTV, the type rtPS (Real-Time Polling Service) is the most
suitable. rtPS is one of the four QoS defined in DOCSIS / EuroDOCSIS, and is
designed to support service flows with real-time traffic that generates variable-size data
packets on a periodic basis and has inflexible latency and throughput requirements, as
in the case of video MPEG. This service requires more demand to CMTS than the UGS
type, but supports variable grant sizes for an optimum efficiency in data transport.
The PROMAX-27 allows the user to establish a service flow to verify the quality of
service based on type rtPS. Flow services are used to verify the network between the
test point and the CMTS. It analyses parameters than can affect quality signal, like
latency, jitter, lost packets and trace route, which trace the route of sent packets on a
graph. This will be useful to detect possible bottlenecks.
In short, the IPTV function of the PROMAX-27, performs an exhaustive analysis
of the network based on parameters set by rtPS, which will ensure the best quality
service. The deep knowledge about network conditions will guide you during installation
and will help you solving problems that may arise.
To access to IPTV function:
1.- Press key
2.- Press softkey MODEM [F1].
3.- Press softkey IP NETWORK [F1].
4.- The instrument starts the registration process in the CMTS of the NETWORK.
On the display it will appear the word "TUNING" during the process. You must
wait a few minutes until it is registered. If registration process is right, it will
display the word "DONE" on the screen. Failure in registration process will be
displayed as a "ERROR IN REGISTRATION".
5.- Press softkey IPTV [F3].
09/2010
[13].
IPTV QoS ANALYSER
s
0.4
0.3
0.2
0.1
0.0
BACK SEND CONFIG
Figure 20.- IPTV screen.
01:43:09
IP ADDRESS:
064.233.161.99
NODE: 1/15
IP: 010.001.001.005
LATENCY: 5.0 ms
JITTER: 2.0 ms
PLR 0.0 %
TOTAL PLR: 0.0 %
IP UNREACHABLE
-NODE +NODE
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