@end table
@cindex ReplayWindow
-@item ReplayWindow = <bytes> (16)
+@item ReplayWindow = <bytes> (32)
This is the size of the replay tracking window for each remote node, in bytes.
The window is a bitfield which tracks 1 packet per bit, so for example
-the default setting of 16 will track up to 128 packets in the window. In high
+the default setting of 32 will track up to 256 packets in the window. In high
bandwidth scenarios, setting this to a higher value can reduce packet loss from
the interaction of replay tracking with underlying real packet loss and/or
reordering. Setting this to zero will disable replay tracking completely and
it will assume UDP communication is broken and will fall back to TCP.
@cindex UDPRcvBuf
-@item UDPRcvBuf = <bytes> (OS default)
+@item UDPRcvBuf = <bytes> (1048576)
Sets the socket receive buffer size for the UDP socket, in bytes.
-If unset, the default buffer size will be used by the operating system.
+If set to zero, the default buffer size will be used by the operating system.
+Note: this setting can have a significant impact on performance, especially raw throughput.
@cindex UDPSndBuf
-@item UDPSndBuf = <bytes> Pq OS default
+@item UDPSndBuf = <bytes> (1048576)
Sets the socket send buffer size for the UDP socket, in bytes.
-If unset, the default buffer size will be used by the operating system.
+If set to zero, the default buffer size will be used by the operating system.
+Note: this setting can have a significant impact on performance, especially raw throughput.
@end table
If unspecified, the default is
@file{@value{localstatedir}/run/tinc.@var{netname}.pid}.
+@item --force
+Force some commands to work despite warnings.
+
@item --help
Display a short reminder of runtime options and commands, then terminate.
@cindex add
@item add @var{variable} @var{value}
As above, but without removing any previously existing configuration variables.
+If the variable already exists with the given value, nothing happens.
@cindex del
@item del @var{variable} [@var{value}]
Export all host configuration files to standard output.
@cindex import
-@item import [--force]
+@item import
Import host configuration file(s) generated by the tinc export command from standard input.
Already existing host configuration files are not overwritten unless the option --force is used.
@cindex exchange
-@item exchange [--force]
+@item exchange
The same as export followed by import.
@cindex exchange-all
-@item exchange-all [--force]
+@item exchange-all
The same as export-all followed by import.
@cindex invite