---
title: NWParameters.ServiceClass.background
framework: network
role: symbol
role_heading: Case
path: network/nwparameters/serviceclass-swift.enum/background
---

# NWParameters.ServiceClass.background

A service type for high-delay tolerant, high-loss tolerant, elastic flow, and variable size connections.

## Declaration

```swift
case background
```

## Discussion

Discussion Use this service type when, for example, you’re managing traffic that prefetches content and makes it available when the person chooses to view it.

## See Also

### Service Classes

- [NWParameters.ServiceClass.bestEffort](network/nwparameters/serviceclass-swift.enum/besteffort.md)
- [NWParameters.ServiceClass.interactiveVideo](network/nwparameters/serviceclass-swift.enum/interactivevideo.md)
- [NWParameters.ServiceClass.interactiveVoice](network/nwparameters/serviceclass-swift.enum/interactivevoice.md)
- [NWParameters.ServiceClass.responsiveData](network/nwparameters/serviceclass-swift.enum/responsivedata.md)
- [NWParameters.ServiceClass.signaling](network/nwparameters/serviceclass-swift.enum/signaling.md)