---
title: ifi_tcp_synwindow
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 13.0+]
path: kernel/if_packet_stats/3943968-ifi_tcp_synwindow
---

# ifi_tcp_synwindow

## Declaration

```occ
u_int64_t ifi_tcp_synwindow;
```