> 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/web-portal-3-3/protocol-stack/sigtran/creating-an-iua-sap.md).

# Creating an IUA SAP

> **Applies to:** Tmedia 3.0, 3.2, 3.3

After you create an IUA configuration, you must create a new IUA service access point (SAP) for your system. The SAP is an identifying label for endpoints in your network.

To create an IUA SAP:

1- Click **IUA** in the navigation panel

![Create Iua Config 0](https://docs.telcobridges.com/w/images/c/cb/Create_Iua_Config_0.png)

2- Click **Create New Iua Sap** in the IUA configuration window

![Create Iua Sap 0](https://docs.telcobridges.com/w/images/2/21/Create_Iua_Sap_0.png)

3- Configure the new IUA SAP:

* Enter a **name** for the new SAP
* Enter a number for the **SCTP source port**
* Click **Create**

![Create Iua Sap 1](https://docs.telcobridges.com/w/images/6/6e/Create_Iua_Sap_1.png)

4- Verify that the **"Iua Sap was successfully created"** message appears

![Create Iua Sap 2](https://docs.telcobridges.com/w/images/c/c0/Create_Iua_Sap_2.png)

5- Associate an IP interface with the new SAP:

* Select an **IP interface** from the **Edit IP Interfaces** list
* Associate the interface with the SAP, using the **"<<"** button

![Create Iua Sap 3](https://docs.telcobridges.com/w/images/0/00/Create_Iua_Sap_3.png)

**Path**

```
/configurations/@[configuration_name]/hardware_units/@[hardware_name]/iua_stacks/@[iua_stack]/iua_saps/@[iua_sap]
```

**Parameters (text)**

```
/configurations/@[configuration_name]/hardware_units/@[hardware_name]/iua_stacks/@[iua_stack]/iua_saps/@[iua_sap]
ip_interfaces       = [ "@[hardware_name].@[voip_name]" ]
name                = "@[iua_sap]"
src_port            = 9900

/configurations/@[configuration_name]/hardware_units/@[hardware_name]/iua_stacks/@[iua_stack]/iua_saps/@[iua_sap]/advanced_parameters
abort_nego_if_nb_stream_mismatch = false
bundle_timer                     = ""
cookie_life_time                 = "30 seconds"
flow_control_down_threshold      = 1000
flow_control_up_threshold        = 2000
freeze_timer                     = "1500 milliseconds"
handle_init_data                 = true
heartbeat_delay                  = "1500 milliseconds"
max_data_burst                   = 4
max_data_size                    = 1000
max_datagrams_ack                = 10
max_delay_ack                    = "100 milliseconds"
rto_init                         = "1500 milliseconds"
rto_max                          = "2 seconds"
rto_max_hearbeat                 = 1
rto_min                          = "100 milliseconds"
shutdown_guard_timer             = "75 seconds"

/configurations/@[configuration_name]/hardware_units/@[hardware_name]/iua_stacks/@[iua_stack]/iua_saps/@[iua_sap]/timers
maximum_primitive_retry = 5
sctp_primitive_timeout  = "1 second"
```

**Parameters (json)**

```
{
  "advanced_parameters" : {
    "abort_nego_if_nb_stream_mismatch" : false,
    "bundle_timer" : "",
    "cookie_life_time" : "30 seconds",
    "flow_control_down_threshold" : 1000,
    "flow_control_up_threshold" : 2000,
    "freeze_timer" : "1500 milliseconds",
    "handle_init_data" : true,
    "heartbeat_delay" : "1500 milliseconds",
    "max_data_burst" : 4,
    "max_data_size" : 1000,
    "max_datagrams_ack" : 10,
    "max_delay_ack" : "100 milliseconds",
    "rto_init" : "1500 milliseconds",
    "rto_max" : "2 seconds",
    "rto_max_hearbeat" : 1,
    "rto_min" : "100 milliseconds",
    "shutdown_guard_timer" : "75 seconds"
  },
  "ip_interfaces" : [
    ""@[hardware_name].@[voip_name]""
  ],
  "name" : "@[iua_sap]",
  "src_port" : 9900,
  "timers" : {
    "maximum_primitive_retry" : 5,
    "sctp_primitive_timeout" : "1 second"
  }
}
```

### List of Parameters

* [Name](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/m3ua#n)
* [SCTP Source Port](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/m3ua#s)


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