Agilent Technologies N2620A - Manual (Page 161)

IP Video Testing with the FrameScope Pro 6
N2620A User’s Guide 143
How the FrameScope Pro Tests IP Video Quality
Measurement Overview
The FrameScope Pro supports either RTSP or IGMP and IPTV
QoS analysis on the IP and MPEG layers as shown in the
diagram.
IPTV Channel Setup and Control
Both RTSP and IGMP are supported to control IPTV channel
setup. The FrameScope Pro acts as an RTSP client and can
establish an RTSP session with the media server, specifying the
acceptable user-defined transport parameters. The media
server is expected to confirm the selected parameters and to
reply with the server-side parameters (port numbers).
Once the setup has completed, the FrameScope Pro tells the
server to start or stop sending media data using the
user-defined mechanism.
For multicast streaming, the FrameScope Pro uses IGMP to join
or leave the multicast addresses to which the media data are
sent.
RTSP Latency
Physical Medium
Layer 2 (Ethernet, ATM,...)
IP
TCP UDP IGMP
Control/Signalling protocol
Optional
RTCP RTP FTP RTSP HTTP
MPEG2-
TS
Encoded
Video
Transport Error Indicator
Discontinuity Error
MDI (DF & MLR)
Bit rate
RTP Packet Jitter
RTP Packet Loss
Hole size
IGMP Latency