---
title: nd_opt_pi_valid_time
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 12.0+]
path: kernel/nd_opt_prefix_info/3754147-nd_opt_pi_valid_time
---

# nd_opt_pi_valid_time

## Declaration

```occ
u_int32_t nd_opt_pi_valid_time;
```