Cisco DNCS System Release 2.8.1 3.8.1 4.3.1 User Guide

This section provides instructions for adding a bootloader source to the DNCS. The DNCS uses a default
bootloader source (source ID 199); however, you can add bootloader sources to the DNCS. With multiple
bootloader carousels, the BFS can send set-top software version images using more than one carousel. This
enhancement gives operators the flexibility needed to reduce download times and maintain system performance
by creating the optimal number of bootloader carousels for their system.

Important: If you are using our RCS solution, select All Sites to add this source to all existing sites as well as
all future sites. 

Before you begin, determine the data rate for each bootloader carousel. The rate is dependent on several
factors, such as the BFS QAM setting and the available bandwidth. When making this decision, select a rate
between 1.00 and 3.00 Mbps. For assistance, refer to Recommendations for Data Carousel Rate Management
Technical Bulletin (part number 716377).

You also need to assign the new bootloader to the same hosts as the original bootloader. Refer to the
configuration of the original bootloader and record which hosts it uses.

1.

On the DNCS Administrative Console, click the Application Interface Modules tab.

2.

Click BFS Admin. Depending on your system configuration, the following window opens:



If you are using a typical network with no RCS, the BFS Administration window opens. If this

window opens, go to step 4.



If you are using an RCS, the Please select a site window opens. If this window opens, go to

step 3.

3.

Select File > All Sites. 

4.

Click the Sources tab.

5.

Click File > New. The Set Up BFS Source window opens.

6.

.

Use the following fields when you manage a bootloader source in the DNCS.

Source Name

Enter a name to describe this source.

Example: Enter Bootloader2.

Source ID

We recommend that you select an even number that is not in use and
that is greater than 200 to correspond with our naming convention.

Source Type

Select Bootloader.

Transport Type

Select the In-band option.

Data Rate

The data rate depends on several factors, including the DHCT type, the
BFS QAM setting, and the available bandwidth. When you make this
decision, select a rate between 1.00 and 3.00 Mbps. 

For more information on carousel data rates, refer to 

Recommendations

for Data Carousel Rate Management Technical Bulletin 

(part number

716377).