Network Technologies DVB-ASI to IP - Manual (Page 48)

ASI-IP-GTW User's Manual
Page 48
IGMP version: Shows the IGMP version currently selected in the
”Device Info” page under “Network”, “Advanced” Settings.
Reset statistics: Press this button to reset the counters: RTP sequence
errors, Lost IP frames and Corrected IP frames.
3.7.2 FEC Settings
Figure 21. The FEC sub-page of an IP receiver
This sub-page will only appear if the unit is enabled with FEC.
Enable FEC: Tick this box to enable use of FEC.
Alarm threshold: This parameter controls the frequency of lost frames
that should cause activation of the ‘FEC Threshold Exceeded’ alarm.
The threshold is configured in the unit of frames between losses,
causing the alarm to be activated if the number of frames received
between two losses falls below the configured number.
In the Status frame the following parameters are shown:
Lost IP frames: This counter shows the number of lost IP frames. This
means packets which remain uncorrected.
Corrected IP frames: This counter shows the number of IP frames
corrected by the FEC engine.
Duplicated IP frames: This counter shows the number of duplicated IP
frames received.
Columns (L): This shows the number of columns in the incoming FEC
stream.
Rows (D): This shows the number of rows in the incoming FEC stream.