> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/tmedia-documentation/configuration/creating-an-sccp-ssn.md). # Creating an SCCP SSN > **Applies to:** Tmedia 3.0, 3.2, 3.3 After you configure an SCCP Route, you can add [SCCP](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/protocols/sccp/README.md) [Sub-System Number](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) (SSN) on the route. SCCP [Sub-System Number](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) are used to identify applications of this route's DPC. [SCCP managament](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/protocols/sccp-managament/README.md) will maintain the availability state for each [SSN](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) associated with the route's DPC. The [SSN](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) management status affects the routing decision. If a peer [SSN](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) is unavailable, the SCCP stack will try an alternate DPC/route. To Create an SCCP SSN: 1- Select **SCCP** from the navigation panel ![Create SCCP Stack 0](https://docs.telcobridges.com/w/images/f/fa/Create_SCCP_Stack_0.png) 2- Select an SCCP Network ![Select SCCP Network 0](https://docs.telcobridges.com/w/images/0/0b/Select_SCCP_Network_0.png) 3- Select an SCCP LSAP ![Select SCCP LSAP 0](https://docs.telcobridges.com/w/images/9/93/Select_SCCP_LSAP_0.png) 4- Select an SCCP Route ![Select SCCP Route 0](https://docs.telcobridges.com/w/images/a/a5/Select_SCCP_Route_0.png) 5- Click **Create New SSN** from the SCCP route configuration window ![Create SCCP SSN 0](https://docs.telcobridges.com/w/images/e/eb/Create_SCCP_SSN_0.png) 6- Configure the new SCCP SSN: * Choose a [Sub-System Number](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) for this route's DPC * Select a [Replication Mode](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/replication-mode/README.md) (ANSI and Telcordia only) * Select the [First Concerned Point Code](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sccp-concerned-point-code/README.md) that requires immediate notification upon state change of this peer [SSN](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) * Select the [Second Concerned Point Code](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sccp-concerned-point-code/README.md) that requires immediate notification upon state change of this peer [SSN](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) * Click **Create** ![Create SCCP SSN 1](https://docs.telcobridges.com/w/images/8/8b/Create_SCCP_SSN_1.png) 7- Verify that the **"SccpRtSsn was successfully created"** message appears ![Create SCCP SSN 2](https://docs.telcobridges.com/w/images/b/bb/Create_SCCP_SSN_2.png) 8- Configure [SCCP Route SSN Backup Point Code](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/protocols/sccp-route-ssn-backup-point-code/README.md) * Assign [Backup Point Codes](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sccp-backup-point-code/README.md) to use in case this peer [SSN](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) is not available. ![Create SCCP SSN 3](https://docs.telcobridges.com/w/images/f/f9/Create_SCCP_SSN_3.png) * **Note: For each selected point codes, a valid SCCP route must exist**. **Path** ``` /configurations/@[configuration_name]/sccp_stacks/@[sccp_stack]/sccp_networks/@[sccp_network]/sccp_lsaps/@[sccp_lsap]/sccp_routes/@[sccp_route]/sccp_ssns/@[sccp_ssn] ``` **Parameters (text)** ``` /configurations/@[configuration_name]/sccp_stacks/@[sccp_stack]/sccp_networks/@[sccp_network]/sccp_lsaps/@[sccp_lsap]/sccp_routes/@[sccp_route]/sccp_ssns/@[sccp_ssn] backup_point_codes = [ "@[point_code]" ] first_concerned_point_code = "@[point_code]" options = [ "ACCESSIBLE_BY_DEFAULT" ] replication_mode = "DOMINANT" second_concerned_point_code = "@[point_code]" sub_system_number = 1 ``` **Parameters (json)** ``` { "backup_point_codes" : [ "@[point_code]" ], "first_concerned_point_code" : "@[point_code]", "options" : [ "ACCESSIBLE_BY_DEFAULT" ], "replication_mode" : "DOMINANT", "second_concerned_point_code" : "@[point_code]", "sub_system_number" : 1 } ``` ### List of Parameters * [Sub-System Number](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sub-system-number/README.md) * [Replication Mode](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/replication-mode/README.md) * [First Concerned Point Code](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sccp-concerned-point-code/README.md) * [Second Concerned Point Code](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/sccp-concerned-point-code/README.md) --- # Agent Instructions This documentation is published with GitBook. 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