keepAlive default value

[zhiweiv]

In https://stackexchange.github.io/StackExchange.Redis/Configuration.html

keepAlive={int}	KeepAlive	-1	Time (seconds) at which to send a message to help keep sockets alive (60 sec default)

Third column says default is-1, but the forth column says default is 60.

I am wondering which one is correct?