---
title: NWProtocolIP.ECN.ect1
framework: network
role: symbol
role_heading: Case
path: network/nwprotocolip/ecn/ect1
---

# NWProtocolIP.ECN.ect1

ECN Capable Transport (flag 1).

## Declaration

```swift
case ect1
```

## See Also

### ECN Flags

- [NWProtocolIP.ECN.nonECT](network/nwprotocolip/ecn/nonect.md)
- [NWProtocolIP.ECN.ect0](network/nwprotocolip/ecn/ect0.md)
- [NWProtocolIP.ECN.ce](network/nwprotocolip/ecn/ce.md)