We have an SCTP association between two IP addresses on two different nodes, say A and B, both running Linux version 4.2. The following are my observations:
On A, if you terminate the process containing the SCTP socket, the association clears up immediately from /proc/net/sctp/assocs if the corresponding IP address for end-point A is still present on the network device.
On A, if you delete the IP address from the network device, and
subsequently attempt to terminate the process, the association is
still present under /proc/net/sctp/assocs up to 6 minutes after the
process has been terminated.
Does anyone know if this is a bug or an expected behavior depending upon configuration settings, and could it be altered in a way that the association disappears immediately after the process containing the socket is terminated? Thanks!
