---
title: reason
framework: avsystemrouting
role: symbol
role_heading: Instance Property
path: avsystemrouting/avsystemrouteevent-1r0st/reason
---

# reason

The reason for the routing event.

## Declaration

```occ
@property (nonatomic, readonly) AVSystemRouteEventReason reason;
```

## Mentioned in

Routing and streaming media to remote devices