| /* |
| * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * A Java API for Stream Control Transport Protocol. |
| * |
| * <P> The Stream Control Transport Protocol (SCTP) is a reliable, |
| * message-oriented, transport protocol existing at an equivalent level with UDP |
| * (User Datagram Protocol) and TCP (Transmission Control Protocol). SCTP is |
| * session oriented and an association between the endpoints must be established |
| * before any data can be transmitted. |
| * |
| * <P> SCTP has direct support for multi-homing, meaning than an endpoint may be |
| * represented by more than one address and each address may be used for sending |
| * and receiving data, thus providing network redundancy. The connection between |
| * two endpoints is referred to as an association between those endpoints. |
| * Endpoints can exchange a list of addresses during association setup. One |
| * address is designated as the primary address, this is the default address that |
| * the peer will use for sending data. A single port number is used across the |
| * entire address list at an endpoint for a specific session. |
| * |
| * <P> SCTP is message based. I/O operations operate upon messages and message |
| * boundaries are preserved. Each association may support multiple independant |
| * logical streams. Each stream represents a sequence of messages within a single |
| * association and streams are independant of one another, meaning that stream |
| * identifiers and sequence numbers are included in the data packet to allow |
| * sequencing of messages on a per-stream basis. |
| * |
| * <P> This package provides two programming model styles. The one-to-one style |
| * supported by {@link com.sun.nio.sctp.SctpChannel} and {@link |
| * com.sun.nio.sctp.SctpServerChannel}, and the one-to-many |
| * style supported by {@link com.sun.nio.sctp.SctpMultiChannel}. |
| * The semantics of the one-to-one style interface are very similar to TCP. |
| * An {@code SctpChannel} can only control one SCTP association. The |
| * semantics of the one-to-many style interface are very similar to UDP. An |
| * {@code SctpMutliChannel} can control multiple SCTP associations. |
| * |
| * <P> Applications can send and receive per-message ancillary information through |
| * {@link com.sun.nio.sctp.MessageInfo}. For example, the stream number that |
| * the message it is to be sent or received from. The SCTP stack is event driven |
| * and applications can receive notifications of certain SCTP events by invoking |
| * the {@code receive} method of the SCTP channel with an appropriate {@link |
| * com.sun.nio.sctp.NotificationHandler notification handler}. |
| * |
| * <P> The SCTP protocol is defined by |
| * <A HREF="http://tools.ietf.org/html/rfc4960">RFC4960</A>, and the optional |
| * extension for <I>Dynamic Address Reconfiguration</I> is defined by |
| * <A HREF="http://tools.ietf.org/html/rfc5061">RFC5061</A>. |
| * |
| * @since 1.7 |
| */ |
| |
| package com.sun.nio.sctp; |