LAPD protocol implementation available
Sun Jan 2 03:42:33 CET 2005
In a project last year I found I needed a LAPD protocol implementation
which provided an API to the Unacknowledged Information (UI) frame
service. I wasn't able to find an existing implementation which exposed
the UI service to the user. So to complete the project I implemented
my own version of the Link Access Procedures on the D-channel (LAPD) as
documented in ITU-T Q.921. I did this to create an emulation environment
for GSM Abis interfaces. This was work done simply in order to have a
testing environment for another commercial product we developed.
I am making this Erlang application available under a BSD opensource
license. I'm not sure how likely it is that anyone will have a use for
this but I might as well share. If nothing else the design documented
in the User Guide might might be interesting for those building such
communicating state machine applications.
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