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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 RFCOMM 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 that 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 under data in the
Decode pane in 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.
3.2.5.3 RFCOMM 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,
and 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.
2. Change the RFCOMM parameter by selecting from the
Change the Selected Item to Carry drop down list.
3. If you wish to remove an overridden rule click on
Remove Override
button. If you want to remove all
decoder parameter settings click on
Remove All
.
4. Choose the protocol the selected item carries from the
drop-down list, and click OK .
Each entry in the
Set Subsequent Decoder Parameters
dialog takes effect from the specified frame onward or until
redefined in this dialog on a later frame.
Chapter 3 Configuration Settings TELEDYNE LECROY
Frontline BPA 600 Hardware & Software User Manual 52