> For the complete documentation index, see [llms.txt](https://tmediadocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tmediadocs.telcobridges.com/configuration/web-portal-3-3/hardware/new-hardware/creating-a-n-plus-1-group.md).

# Creating an N+1 Group

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

Once the N+1 patch panel is created, you must configure an N+1 group and assign each hardware unit to their correct position on the N+1 pacth panel.

**To create an N+1 Group:**

1- Click **N+1** in the navigation panel

![N Plus One 0 A](https://docs.telcobridges.com/w/images/b/bf/N_Plus_One_0_A.png)

2- Click **Create New N+1 Group**

![N Plus One 1 A](https://docs.telcobridges.com/w/images/b/bf/N_Plus_One_1_A.png)

3- Set the correct serial numbers for units that are assigned as Primary and Secondary N+1 Patch panels, as well as the N+1 Backup unit.

* Configure the following:
  * Primary N+1 Patch Panel: N+1 patch panel for the main fiber
  * Secondary N+1 Patch Panel: N+1 patch panel for the APS
  * N+1 Backup Unit: Standby unit
  * Auto switch-back: Select this option to automatically switch TDM and VoIP media back to the original unit when it becomes available. If this option is not selected, then the backkup unit will remain active until it is manually rebooted.
  * Port 0 to 14: Units must be listed as they are physically connected to the N+1 patch panel.
* Click **Create**

![N Plus One 2 A](https://docs.telcobridges.com/w/images/2/2f/N_Plus_One_2_A.png)

4- Verify that the **N+1 Group was successfully created** message is displayed.

![N Plus One 3 A](https://docs.telcobridges.com/w/images/9/9a/N_Plus_One_3_A.png)

**Path**

```
/configurations/@[configuration_name]/np1_groups/@[np1Group_name]
```

**Parameters (text)**

```
/configurations/Sylvain/np1_groups/One_PLUS_ONE_GROUP
auto_switch_back          = false
backup_unit               = "@[hardware_name]"
name                      = "@[np1Group_name]"
primary_np1_patch_panel   = "NONE"
primary_unit              = "@[hardware_name]"
secondary_np1_patch_panel = "NONE"

/configurations/@[configuration_name]/np1_groups/@[np1Group_name]/patch_panel_ports_mapping
port_0  = "NONE"
port_1  = "NONE"
port_2  = "NONE"
port_3  = "NONE"
port_4  = "NONE"
port_5  = "NONE"
port_6  = "NONE"
port_7  = "NONE"
port_8  = "NONE"
port_9  = "NONE"
port_10 = "NONE"
port_11 = "NONE"
port_12 = "NONE"
port_13 = "NONE"
port_14 = "NONE"
```

**Parameters (json)**

```
{
  "auto_switch_back" : false,
  "backup_unit" : "@[hardware_name]",
  "name" : "@[np1Group_name]",
  "patch_panel_ports_mapping" : {
    "port_0" : "NONE",
    "port_1" : "NONE",
    "port_2" : "NONE",
    "port_3" : "NONE",
    "port_4" : "NONE",
    "port_5" : "NONE",
    "port_6" : "NONE",
    "port_7" : "NONE",
    "port_8" : "NONE",
    "port_9" : "NONE",
    "port_10" : "NONE",
    "port_11" : "NONE",
    "port_12" : "NONE",
    "port_13" : "NONE",
    "port_14" : "NONE"
  },
  "primary_np1_patch_panel" : "NONE",
  "primary_unit" : "@[hardware_name]",
  "secondary_np1_patch_panel" : "NONE"
}
```

### List of Parameters

* [Name](https://tmediadocs.telcobridges.com/telecom-references/parameter-reference/m3ua#n)
* [Primary N+1 Patch Panel](https://tmediadocs.telcobridges.com/telecom-references/parameter-reference/other#p)
* [Secondary N+1 Patch Panel](https://tmediadocs.telcobridges.com/telecom-references/parameter-reference/other#s)
* [N+1 Backup Unit](https://tmediadocs.telcobridges.com/telecom-references/parameter-reference/hardware#n)
* [Auto Switch-back](https://tmediadocs.telcobridges.com/telecom-references/parameter-reference/tdm#a)
* [Ports 0-14](https://tmediadocs.telcobridges.com/telecom-references/parameter-reference/ip-network#p)


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