Re: what does SocketOptionName.KeepAlive mean?

"In practice, however, a Socket connection will be closed long before that
2 hour period >if no data is sent within that interval."

Why so Dave? I have never seen that happen.

"Dave Sexton" <dave@jwa[remove.this]online.com> wrote in message
news:uIYBNuOqGHA.3816@xxxxxxxxxxxxxxxxxxxxxxx
Hi Ryan,

SocketOptionName.KeepAlive must be associated with a TCP Socket and
supplied as a Boolean value, true or false, to the SetSocketOption method.

See section 4.2.3.6 TCP Keep-Alives of RFC 1122 for the standardized
design:

http://www.faqs.org/rfcs/rfc1122.html

In short, enabling keep-alives causes a packet to be sent every 2 hours,
by default, to keep the connection alive when there has been no data sent
by the application within that 2 hour period. In practice, however, a
Socket connection will be closed long before that 2 hour period if no data
is sent within that interval.

- David Sexton

"Ryan Liu" <ad50275324@xxxxxxxxxxxx> wrote in message
news:O0uMqgLqGHA.2304@xxxxxxxxxxxxxxxxxxxxxxx
Hi,

SocketOptionName.KeepAlive is a bool or an int value?

Is it "belongs to" SocketOptionLevel.Socket?

What does value 0 means? Is that meaning always "keep alive", or never
"send
keep-alives"?

And what does "Send keep-alives" mean anyway?

Thanks a million?
Ryan






.

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