---
title: definition
framework: network
role: symbol
role_heading: Type Property
path: network/nwprotocoltls/definition
---

# definition

The system definition of the Transport Layer Security protocol.

## Declaration

```swift
static let definition: NWProtocolDefinition
```

## See Also

### Creating TLS Connections

- [NWProtocolTLS.Options](network/nwprotocoltls/options.md)