# connectionId

> The ChannelClient's connection ID.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor.MPE](/engine/6000.0/script-reference/unityeditor/mpe.md)
* **Assembly:** UnityEditor

```csharp
public int connectionId { get; }
```

### Remarks

The [ChannelService](/engine/6000.0/script-reference/unityeditor/mpe/channelservice.md) sends this connection ID when is establishes a connection. It sends the ID during the handshake. The connection allows multiple ChannelClients on the same channelName to identify themselves.