Re: TCP retransmission : how to detect from an application ?

[Andi Kleen]

"Paul Rolland" <rol@xxxxxxxxxx> writes:

> I've an application that is establishing TCP connection, and exchanges some
> data.
> However, from time to time, I suspect there are some packet loss, which are
> corrected by the kernel (hell, TCP is reliable, isn't it :-), but I'd like
> to know if an application can detect this (well, I don't want to be notified
> of a packet loss once detected, but I'd like to get some stats before
> closing
> the connection).
>
> Is there something possible ? Some ioctl ? Some /proc/magic-interface ?

RTFM. man tcp -> TCP_INFO 

-Andi

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