Logical deletion of an SGSN from a STP

Usually the SGSN has SIGTRAN links configured against the STPs that allow the sending and receiving of SS7 messages against the rest of the core elements. I will show you how to delete the SIGTRAN links. This involves eliminating the IP addresses, the SCTP configuration, the M3UA and finally the SCCP of the SIGTRAN links in the SGSN.

I will attach an example and the commands to be used for deletion.

Suppose we have an SGSN in the network called EXAMPLESGSN02.

-> 1:

RMV SCCPGT: MODE = byidx, TITLE = "EXAMPLESGSN02_E164 _ #########";

It is used to remove one or several SCCP global title data records from the configuration database.

This information can be obtained with the command "LST SCCPGT"

-> 2:

RMV SCCPSSN: TITLE = "EXAMPLES SN2-SCMG";

This command is used to delete the specified record from the SCCP subsystem table.

This information can be obtained with the command "LST SCCPSSN"

-> 3:

RMV N7RT: TITLE = EXAMPLESGSN02-RC ";

This command remove a message transfer part level 3 (MTP3) route.

This information can be obtained with the command "LST N7RT"

4.-

RMV M3RT: TITLE = "EXAMPLESGSN02";

It is used to remove an M3UA route data record from the configuration database.

This information can be obtained with the command "LST M3RT"

5.-

RMV M3ASSO:TITLE="EXAMPLESGSN02_AS00";

RMV M3ASSOS:TITLE="EXAMPLESGSN02";

Remove M3UA association set.

This information can be obtained with the command "LST M3ASSO / MEASSOS"

6.-

RMV M3AS:TITLE="CCSSGSN02";

Remove M3UA application server

This information can be obtained with the command "LST M3AS"


7.-

RMV N7DSP:TITLE="EXAMPLESGSN02 ";

Remove the MTP DSP.

This information can be obtained with the command "LST N7DSP"

8.-

RMV RIPC:DESC="EXAMPLESGSN02_VPN1_1/EXAMPLESGSN02_VPN2_2 ";
RMV RIPC:DESC=" EXAMPLESGSN02_VPN2_1/CCSSGSN02_VPN1_2";

Remove remote IP address combination table.

This information can be obtained with the command "LST RIPC".

10.-

RMV RIP:DESC="EXAMPLESGSN02_VPN1_1";
RMV RIP:DESC="EXAMPLESGSN02_VPN1_2";
RMV RIP:DESC="EXAMPLESGSN02_VPN2_1";
RMV RIP:DESC="EXAMPLESGSN02_VPN2_2";

Remove remote IP address.

This information can be obtained with the command "LST RIP".

Performing these steps, it should be sufficient to delete the SGSN element from the STP. I hope I helped you, good luck.