TSAT 3000 - Ip_Linger_Ftp

TSAT 3000 - Telemetry and data transfer via SATellite
TSAT 3000 Configuration Parameter Description, January 2013 Page 46 of 124
3.4.5 IP_LINGER_FTP
Default 60, Range –1…120
Ver <= 30.6.1
Not Implemented.
Ver >= 30.7.0 + KERNEL >= 3.2.1
This MIB is defining a timeout parameter of the local FTP server. It will set the maximum time
from the FTP server has sent the last data-packet, until the ftp-data-socket will be closed. The
last part of retrieved files (especially smaller files) may be lost if this timeout is set too low.
Default value is 60 (i.e. 1 minute). Legal values are:
Value Description
-1
On close(), the underlying stack attempts to gracefully shutdown the connection after
ensuring all unsent data is sent. The stack also ensures that sent data is acknowledged
by the peer. The stack will perform the above-mentioned graceful shutdown in the
background (after the call to close() returns), regardless of whether the socket is blocking
or non-blocking.
0
A close() returns immediately. The underlying stack discards any unsent data, and sends
a RST (reset) to the peer (this is termed a hard or abortive close).
1 - 120
A close() will either block (if a blocking socket) or fail (if non-blocking) until a graceful
shutdown completes or the time specified time elapses (time-out). Upon time-out the
stack sends a RST (reset) to the peer.