---
title: unavailabilityLatencyCeiling
framework: wifiaware
role: symbol
role_heading: Instance Property
path: wifiaware/waperformanceforecast/unavailabilitylatencyceiling
---

# unavailabilityLatencyCeiling

The highest forecasted packet latency due to this device’s unavailability.

## Declaration

```swift
let unavailabilityLatencyCeiling: Duration?
```

## Discussion

Discussion This only considers the latency caused by time periods where this local device is not able to communicate to the other device via Wi-Fi Aware. Additional latency can be caused by channel or RF conditions.