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Recommendations to Improve Your Data Carousel Rate
734375 Rev H 35
Source
ID Data Carousel Data Rate
(Mbps) Block Size
(Bytes) Indication
Interval (ms) Enabled/Run
(see note 1)
22 PPV IB2 1.00 4000 100 x
24 SGM IB1 1.00 4000 100 See note 4
26 SGM IB2 1.00 4000 100 See note 4
28 SGM IB3 1.00 4000 100 See note 4
30 SGM IB4 1.00 4000 100 See note 4
32 SGM IB5 1.00 4000 100 See note 4
199 bootloader 3.00 4000 100 See note 3
Default IB Total: 14 See note 5
Default OOB Total 0.310
Specific Notes About the SARA Data Carousel Rate Settings
Each item in the following list pertains to the corresponding footnote number in the
preceding table.
1 The Enabled/Run column pertains to the Sources field on the Set Up BFS Source window
on systems supporting SR 2.5/3.5/4.0 and later software. After an inband source is
disabled, the session for that source is torn down (if active), and the session will not be
restored until the BFS source is re-enabled. Also, note that the data pumps for inband and
out-of-band sources will not restart until the BFS source is re-enabled.
Notes:
 When you disable (or stop) a source, you free up its associated bandwidth.
 For systems using SR 4.3 and later, the parameter has changed from "enable/disable"
to "run/stop".
2 Follow these guidelines to configure the Data Rate for the CAM IB data carousel:

If your site uses the camFastRefresh feature, set the Data Rate for the CAM IB data
carousel to 1.0 Mbps and enable (or run) the source.

If your site does not use the camFastRefresh feature, follow these guidelines:
– For SR 2.5/3.5/4.0 and later software, disable (or stop) the source.
–
For system software earlier than SR 2.5/3.5/4.0, set the Data Rate for the CAM IB
data carousel to 0.50 Mbps.
3 For system releases prior to SR 2.5/3.5/4.0, the bootloader carousel is managed by the
OSM process and is not visible on the BFS user interface. The 3.00 Mbps data rate of the
bootloader carousel, however, must be considered as part of the total inband data
carousel rate.
Note: For SR 2.5/3.5/4.0 and later, the bootloader carousel is managed by the bfsServer
process and is visible on the BFS user interface.