Teledyne Lecroy Frontline BPA 600, Hardware And Software User Manual, Page: 54 / 348

3.2.3.2 AVDTP Missing Decode Information
The analyzer usually determines the protocol carried in an AVDTP payload by monitoring previous traffic.
However, when this fails to occur, the
Missing Decoding Information Detected
dialog appears and
requests that the user supply the missing information.
The following are the most common among the many possible reasons for a failure to determine the
traversal:
l
The capture session started after transmission of the vital information.
l
The analyzer incorrectly received a frame with the traversal information.
l
The communication monitored takes place between two players with implicit information not included in
the transmission.
In any case, either view the AVDTP payload of this frame (and other frames with the same channel) as hex
data, or assist the analyzer by selecting a protocol using this dialog.
Note: You may use the rest of the analyzer without addressing this dialog. Additional
information gathered during the capture session may help you decide how to respond to
the request for decoding information.
If you are not sure of the payload carried by the subject frame, look at the raw data shown “data” in the
Decoder pane on the Frame Display . You may notice something that hints as to the profile in use.
In addition, look at some of the frames following the one in question. The data may not be recognizable to the
analyzer at the current point due to connection setup, but might be discovered later on in the capture.
Figure 3.25 - Look in Decoder pane for profile hints
3.2.3.3 AVDTP Override Decode Information
The Set
Subsequent Decoder Parameters
dialog allows the user to override an existing parameter at any
frame in the capture where the parameter is used.
If you have a parameter in effect and wish to change that parameter:
1. Select the frame where the change should take effect.
2. Select
Set Subsequent Decoder Parameters
from the
Options
menu, or by selecting a frame in
the frame display and choosing from the right-click pop-up menu, and make the needed changes.
Chapter 3 Configuration Settings TELEDYNE LECROY
Frontline BPA 600 Hardware & Software User Manual 46