---
title: stateUpdateHandler
framework: network
role: symbol
role_heading: Instance Property
path: network/nwethernetchannel/stateupdatehandler
---

# stateUpdateHandler

A handler that delivers channel state updates.

## Declaration

```swift
@preconcurrency final var stateUpdateHandler: (@Sendable (NWEthernetChannel.State) -> Void)? { get set }
```

## See Also

### Handling State Updates

- [state](network/nwethernetchannel/state-swift.property.md)
- [NWEthernetChannel.State](network/nwethernetchannel/state-swift.enum.md)