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# keepalive(idleTimeInSeconds:count:intervalInSeconds:)

Enable TCP keepalives.

```
func keepalive(idleTimeInSeconds: UInt32, count: UInt32, intervalInSeconds: UInt32) -> TCP
```

## Parameters

`idleTimeInSeconds`

The number of seconds of idleness to wait before keepalive
probes are sent by TCP (`TCP_KEEPALIVE`).

`count`

The number of keepalive probes to send before terminating.

`intervalInSeconds`

The number of seconds of to wait before resending TCP
keepalive probes (`TCP_KEEPINTVL`).

---

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