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APPENDIX A
Additional Information
4. Pass Filter The Pass Filter allows you to select only the category of
protocol messages you want logged into the Agilent 8922M
internal logging buffers.
Choices
• NetwkOnly will pass these messages:
• peer-to-peer messages between the network layers (signaling layer 3).
Network peer-to-peer messages are only passed out through the interface. That
is, only DL_UNIT_DATA and DL_DATA messages are passed out as they carry
the L3 Network peer-to-peer messages. This includes all PTP messages between
CC-CC, MM-MM and RR-RR.
• +Datalink will pass these messages:
• peer-to-peer messages between the network layers
• peer-to-peer messages between the data link layers.
This includes ’NetwrkOnly’ plus Datalink peer-to-peer messages. That is, only
DL_UNIT_DATA, DL_DATA and PH_DATA messages are passed out as they
carry the L3 peer-to-peer and L2 peer-to-peer messages.
•+Service will pass these messages as (defined by GSM recommendations):
• peer-to-peer messages between the network layers
• peer-to-peer messages between data link layers
• intra-layer/inter-layer service request and response messages.
• Service primitives exchanged between the signaling layer of the Agilent
8922M.
This includes ’NetwkOnly’ plus ’DataLink’ and all interlayer messages defined
by GSM recommendations. It does not include HP proprietary messages.
Remote Control of
Protocol Logging
It is possible to control the logging functions of the Agilent 8922M over the GPIB
interface. For more details on how to do this refer to the
Agilent 8922M/S GSM Test Set Programming Reference Guide.