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/*
* OpenVPN -- An application to securely tunnel IP networks
* over a single TCP/UDP port, with support for SSL/TLS-based
* session authentication and key exchange,
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
* @file
* Reliability Layer module documentation file.
*/
/**
* @defgroup reliable Reliability Layer module
*
* The Reliability Layer is part of OpenVPN's control channel. It
* provides a reliable and sequential transport mechanism for control
* channel messages between OpenVPN peers. This module forms the
* interface between the \link external_multiplexer External
* Multiplexer\endlink and the \link control_tls Control Channel TLS
* module\endlink.
*
* @par UDP or TCP as VPN tunnel transport
*
* This is especially important when OpenVPN is configured to communicate
* over UDP, because UDP does not offer a reliable and sequential
* transport. OpenVPN endpoints can also communicate over TCP which does
* provide a reliable and sequential transport. In both cases, using UDP
* or TCP as an external transport, the internal Reliability Layer is
* active.
*/
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