28 output status, 29 ip rx parameters, 30 ip rx status – Network Technologies DVB-ASI to IP User Manual

Page 47

Advertising
background image

ASI-IP-GTW User's Manual

Page

47

1.1.1.28 Output Status
ASI total rate: This shows the bitrate of the MPEG-2 transport stream
on the output including NULL packets.

ASI effective rate: This shows the effective bitrate of the MPEG-2
transport stream on the output i.e. bitrate excluding NULL packets.

1.1.1.29 IP RX Parameters
Receive port: Enter the UDP port of this output. The UDP port together
with the IP address uniquely identifies the stream to receive. UDP port
numbers are in the range 1-65535. This field corresponds to the UDP
destination port field of the transmitter.
Preferred latency: Enter the latency in units of milliseconds. This
parameter is used together with the detected bitrate to set the size of
the receive buffer. The receive buffer is used to remove network jitter,
and to perform forward error correction.
Enable multicast: Click this box to use multicast.
Multicast group addr: This setting is only used when enable multicast
is selected. Enter the multicast IP address of the incoming stream.
When enabling multicast mode, the IGMP sub-module will be activated
to join the multicast group and respond to membership queries.
Multicast source addr: This setting is applicable when using IGMP
version 3 (see ch 3.5.1). The device will join a source specific multicast
group, informing the router that it is interested in receiving data from a
specific transmitter only.

1.1.1.30 IP RX Status
Lock: Yes, when the unit has locked to the input stream and has
correctly estimated the bitrate of the input stream. No, when the unit
has not been able to receive the input stream correctly.
Total rate: The total IP rate received on this channel.
Current buffer fill: Shows the number of megabytes currently in the
buffer.
Latency: This parameter reflects the network jitter the unit can handle
at the moment.
Min/Max Latency: This shows the minimum and maximum measured
latency since the last statistics reset.
TS packets per frame: The number of transport stream packets per IP
frame in the incoming stream.
RTP sequence errors: A counter showing the number of RTP sequence
errors caused by lost packets or out-of-order packets. A value of zero
indicates that all packets are received in order.
Lost IP frames: A counter showing the number of IP frames that is lost,
i.e. lost and not corrected by the unit.
Corrected IP frames: A counter showing the number of IP frames
corrected by the FEC engine.

Advertising