Hi Vadim, When peer initiates the closing of the connection (sends fin), session layer notifies vcl about the event and consequently vcl generates an EPOLLHUP | EPOLLRDHUP event towards the app, assuming app uses epoll. Outstanding data can still be read and new data can be written. Are you looking for something else?
Note that TCP waits for a close from the app for 2 seconds by default but can be startup.conf configured. If app does not close the session in time, tcp cleans up the connection forcefully, otherwise, it keeps on trying to send until all outstanding data is delivered or some error is hit. Regards, Florin > On Mar 23, 2021, at 3:01 AM, Vadim Platonov via lists.fd.io > <Vadim.Platonov=kaspersky....@lists.fd.io> wrote: > > Hi, > > Is there any way to know that vppcom epoll tcp session is half-closed? I mean > the supporting of EPOLLRDHUP. > > Thanks, > Vadim. > >
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