[syslog-ng]TCP Connection Dropouts

Hello, I'm wondering about the resilience of syslog-ng to TCP connection dropouts. I've tested what happens when there is no connection available - syslog-ng buffers the output and continues to write to local files, ie. it doesn't block. But what happens if the TCP connection fails halfway through? So, for example, the three-way handshake has been completed, but there is no response after the first data packet is sent because the remote host (or router, switch, ISP ...) has stopped responding. I can't really test this, so does anyone know how syslog-ng handles it? Thanks Phil