Cisco DNCS System Release 2.8.1 3.8.1 4.3.1 User Guide

Use the following fields when you manage multicast sessions on a GQAM modulator.

Source ID

Source that the session will use.

Session ID

 

Left Session ID field.

Enter 12 zeros (00:00:00:00:00:00).

Right Session ID field.

The Source ID you used when you added the source to the DNCS.

Bandwidth

The maximum amount of bandwidth (in Mbps) that the system
should allow for this device.

This value is usually defined by your content service provider.
Requirements vary from system to system, but in general, you can
use the following guidelines:



Standard MPEG video streams use 2 or 3 Mbps.



HDTV streams use 13 Mbps.



Audio streams use 0.2 Mbps.



Modulators using 64-QAM support a total bandwidth of

26.971 Mbps for each QAM carrier.



Modulators using 256-QAM support a total bandwidth of

38.811 Mbps for each QAM carrier.



For each QAM carrier, allocate 1% overhead for PSI and

ECM insertions.

Output Carrier

The output destination of the source.

Program Number

The MPEG program number being fed into the transport stream.

This number must match the program number of the MPEG source
as defined by your content provider.

Source IP Address 1

The IP address of the first device.

Source IP Address 2

The IP address of the second device (if used).

Source IP Address 3

The IP address of the third device (if used).

Input Destination
Multicast IP Address

The multicast IP address on the GQAM modulator where sources are
input.

UDP Port

The port number on the modulator where the sources are input.

Important: If you are using GQAMs, and the multicast session is
being set up as an SMDG session, the session's input port must
match the input port of the SMDG. Otherwise, the session may fail.

Related Topics



Information Needed for Multicast Sessions



Set Up Multicast Sessions on a GQAM



Stat Mux Dejitter Groups