SS7 SCCP-User Adaptation Layer (SUA)


Overview:-	This is the SS7 SCCP-User Adaptation Layer (SUA) component of the OpenSS7 SIGTRAN stack. This component implements the SUA functions in a STREAMS multiplexing driver. The SUA STREAMS driver provides three interfaces: the Signalling Connection Control Part Interface (SCCPI), the Network Provider Interface (NPI) and the Transport Provider Interface (TPI). The SUA STREAMS driver supports I_LINK and I_PLINK of Signalling Connection Control Part Interface (SCCPI) streams providing SS7 SCCP SCCP-SAPs under the driver (SG operation). It also supports I_LINK and I_PLINK of Transport Provider Interface (TPI) streams providing Stream Control Transmission Protocol (SCTP) or other transport under the driver.

History:-	The SUA component was started in January 2000.

Status:-	The SUA component of the OpenSS7 stack is in the Testing stage, however, it has been rewritten on a number of occasions.

Dependencies:-	This component depends on the SS7 SCCP Signalling Connection Control Part Interface (SCCPI) and Transport Provider Interface (TPI) access to the Stream Control Transmission Protocol (SCTP) or other transports.

References:-	A reference list for the SUA component can be viewed here.

Design:-	Designs for the SUA component are available here.

Code:-	Code has not yet been released to the public. Please see the CVS Archive Page for more information on obtaining access to the code.

Documentation:-	Documentation for the SUA component is available here. The SUA man page is available here: sua(8).

Test Results:-	OpenSS7 has participated (and will continue to participate) in testing events for the SUA component. These are: ETSI SIGTRAN Plug Test #1 ETSI SIGTRAN Plug Test #2 ETSI SIGTRAN Plug Test #3 - September 2003 Test results have not yet been released to the public. Please see the CVS Archive Page for more information on obtaining access to the test results.

Release Package:-	The SS7 SCCP-User Adaptation Layer (SUA) is an integral part of the OpenSS7 STREAMS SIGTRAN stack and provides redunancy to the OpenSS7 STREAMS SS7 stack. It can be found in the sua sub-directory in the strss7 release code. The SUA component has not yet been publicly released. Please see the CVS Archive Page for more information.