---
title: kDNSServiceType_IXFR
framework: dnssd
role: symbol
role_heading: Global Variable
path: dnssd/kdnsservicetype_ixfr
---

# kDNSServiceType_IXFR

## Declaration

```swift
var kDNSServiceType_IXFR: Int { get }
```

## Discussion

Discussion Incremental zone transfer.