Cisco Headend System Release 2.7 User Guide
Confirm the BFS Source for Switched Digital Services
4024447 Rev C
7
Confirm the BFS Source for Switched Digital
Services
Services
Overview
This section describes how to confirm that the BFS source, SGM-IB, for switched
digital services is enabled for SDV services. The SGM IB source is a source that is
reserved for switched digital services.
digital services is enabled for SDV services. The SGM IB source is a source that is
reserved for switched digital services.
Important: The number of 475 SDV-enabled service groups available is based on a
block size of 4,000 bytes. Decreasing the block size on your system will decrease the
number of available service groups that an inband source can support. We
recommend a block size of 4,000 bytes for these sources. This section assumes a
block size of 4,000 bytes.
block size of 4,000 bytes. Decreasing the block size on your system will decrease the
number of available service groups that an inband source can support. We
recommend a block size of 4,000 bytes for these sources. This section assumes a
block size of 4,000 bytes.
For SR 2.8/3.8/4.3 or later, the DNCS, by default, creates four additional BFS sources
to deliver the mini-carousel discovery files. This provides for a default total of five
carousels, or up to 2,375 SDV-enabled service groups.
to deliver the mini-carousel discovery files. This provides for a default total of five
carousels, or up to 2,375 SDV-enabled service groups.
The following table shows the default source IDs and the corresponding names for
each source ID.
each source ID.
SR 2.8/3.8/4.3 or later
Source ID
Source ID Name
Number of Service Groups
24 (original BFS source)
SGM IB
0–474
26
SGM IB1
475–949
28
SGM IB2
950–1424
30
SGM IB3
1425–1899
32
SGM IB4
1900–2374