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Feature #5526

open

ability to generate GSMTAP traces from osmo-e1d

Added by laforge almost 2 years ago. Updated 7 months ago.

Status:
New
Priority:
Low
Assignee:
-
Category:
osmo-e1d
Target version:
-
Start date:
04/12/2022
Due date:
% Done:

0%


Description

In a typical setup, where icE1usb + osmo-e1d are used to connect some PBX or other PRI capable equipment, it would be nice if osmo-e1d could be used to generate signaling protocol traces.

This would work as follows:
  • some VTY command to create a GSMTAP source
  • some VTY command to create software HLDC decoder instances (always in pairs for Rx+Tx) on specific timeslots of specific lines

GSMTAP source and software HDLC are available in libosmocore, they just need to be hooked up accordingly

Actions #1

Updated by laforge 7 months ago

  • Priority changed from Normal to Low

note that this is not required for the hub setup where we use osmo-e1d with dahdi-trunkdev and can hence use osmo-isdntap to create protocol traces. It's more for the common situation on the client side, where there is no DAHDI involved and hence no DAHDI_RXMIRROR/DAHDI_TXMIRROR

Another approach might also be to add the RXMIRROR/TXMIRROR capability to osmo-e1d / libosmo-e1d and then support that from osmo-isdntap.

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