---
title: serviceClass
framework: network
role: symbol
role_heading: Instance Property
path: network/nwprotocolip/metadata/serviceclass
---

# serviceClass

A specific service class to mark on an IP packet.

## Declaration

```swift
var serviceClass: NWParameters.ServiceClass { get set }
```

## See Also

### Related Documentation

- [serviceClass](network/nwparameters/serviceclass-swift.property.md)

### Sending IP Options

- [init()](network/nwprotocolip/metadata/init().md)
- [ecn](network/nwprotocolip/metadata/ecn.md)
- [NWProtocolIP.ECN](network/nwprotocolip/ecn.md)