---
title: ecn_fallback_ce
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 13.0+]
path: kernel/if_tcp_ecn_stat/3944025-ecn_fallback_ce
---

# ecn_fallback_ce

## Declaration

```occ
u_int64_t ecn_fallback_ce;
```