NETL-203 — Preparing socket for TCP reset by setsockopt() failed
It is possible to signal an error to the peer (other side of a TCP connection) by performing reset of the connection instead of the normal shutdown. This is achieved by setting socket flag SO_LINGER to on but with zero lingering time and then closing the socket. If setting SO_LINGER fails, TCP reset cannot be done.
The message header contains NETIO structure name and file descriptor number.