IP 多播路由协议的分析

分析介绍了几种典型的IP多播路由协议，如DVMRP、PIM、MOSPF和CBT等，并对这几种IP多播路由协议进行了分析对比。     

几种IP多播路由协议的分析

分析了几种典型的IP多播路由协议，如DVMRP、PIM、MOSPF和CBF等，并对这几种IP多播路由协议进行了分析对比。     

IP多播路由协议技术及其标准

本主要分析了IP多播路由技术的产生,对IP多播体系结构及IP多播地址进行了阐述,并重点介绍了我国所规定的IP多播路由协议技术及其标准。     

IP多播中的路由技术

多播（ｍｕｌｔｉｃａｓｔ）是未来Ｉｎｔｅｒｎｅｔ中的一项重要业务。多播路由技术建立在点到点路由技术的基础上,但在寻路机制和路由结构上有很大区别。本文介绍了ＩＰ多播机制、路由树的类型,以及目前已经应用的典型协议。     

IP多播和广播技术在PPPoE协议上的扩展

本文探讨了IP多播和广播技术在PPPoE协议的应用，并就其性能不足之处提出了一种改进方法。     

IP多播中的路由技术

多播（ｍｕｌｔｉｃａｓｔ）是未来Ｉｎｔｅｒｎｅｔ中的一项重要业务。多播路由技术建立在点到点路由技术的基础上,介在寻路机制和路由结构上有很大区别。本介绍了ＩＰ多播机制、路由树的类型,以及目前已经应用的典型协议。     

IP多播路由选择及应用

分析在因特网上使用的各种ＩＰ多播路由算法及优缺点,基于具体多播模型,重点介绍因特网ＩＰ多播路由标准。最后对实验性多播良干网提出改进意见。     

IP协议及IP路由

1 前言 目前,广电系统的宽带网络建设正在如火如荼地进行着,IP Over WDM、IP Over DWDM、IP Over Optical、IP Over SDH等技术不时出现在各种技术资料中,到底IP是什么意思,这种技术的任务主要是什么?怎样才能将IP技术和IP网络应用得更广泛,有些人并不是很清楚,下面就IP协议和IP路由的技术简要介绍一下。     

动态QoS多播路由协议

本文主要研讨了具有QoS约束的动态多播路由问题.文中描述了一种适用于QoS多播路由的网络模型,提出了一种动态QoS多播路由协议(DQMRP),该协议能操作在单播路由协议的顶层,它只要求网络链路(或节点)的局部状态信息,不需要维护全局状态信息.DQMRP可有效地减少构造一棵多播树的开销,多播组成员可动态地加入／退出多播会晤.该协议可搜索多条可行树枝,并能选择一条最优(或近优)树枝将新成员连接到多播树.文中给出了DQMRP的正确性证明和复杂性分析,并通过仿真实验验证了该协议的可用性和有效性.     

AMRoute: Ad Hoc Multicast Routing Protocol

The Ad hoc Multicast Routing protocol (AMRoute) presents a novel approach for robust IP Multicast in mobile ad hoc networks by exploiting user-multicast trees and dynamic logical cores. It creates a bidirectional, shared tree for data distribution using only group senders and receivers as tree nodes. Unicast tunnels are used as tree links to connect neighbors on the user-multicast tree. Thus, AMRoute does not need to be supported by network nodes that are not interested/capable of multicast, and group state cost is incurred only by group senders and receivers. Also, the use of tunnels as tree links implies that tree structure does not need to change even in case of a dynamic network topology, which reduces the signaling traffic and packet loss. Thus AMRoute does not need to track network dynamics; the underlying unicast protocol is solely responsible for this function. AMRoute does not require a specific unicast routing protocol; therefore, it can operate seamlessly over separate domains with different unicast protocols. Certain tree nodes are designated by AMRoute as logical cores, and are responsible for initiating and managing the signaling component of AMRoute, such as detection of group members and tree setup. Logical cores differ significantly from those in CBT and PIM-SM, since they are not a central point for data distribution and can migrate dynamically among member nodes. Simulation results (using ns-2) demonstrate that AMRoute signaling traffic remains at relatively low level for typical group sizes. The results also indicate that group members receive a high proportion of data multicast by senders, even in the case of a highly dynamic network.     

基于IPV6的组播路由协议PIM-SM的研究及实现

文章首先分析了研究IPv6组播技术的重要意义.然后详细分析了组播路由协议PIM-SM,并且在实验室生成IPv6环境下,对PIM-SM协议中的BSR选举、RP竞争、HelIo消息发布和数据流树切换等进行了测试,测试结果表明该协议工作正常,以其为基础实现的组播系统是正确的,符合RFC相关文档说明.     

一种节省能量的移动Ad Hoc网络组播选路协议

鉴于现有基于网孔的移动Ad Hoc网络组播选路协议都滑考虑如何有效使用电池能量的问题，本文提出了一种节省能量组播选路协议（E^2MRP),E^2MRP协议的两个主要特征是：（1）在创建和维护中继组（RG）的过程中交替采用分组平均能量消耗最少和最大节点花费最小两种标准，（2）采用基于图的组播结构，本文通过仿真分析大大降低了节点的能量消耗，特别是在节移动性较低，组播成员较少时更是如此。     

传统IP组播面临的困境及源特定组播(SSM)

IP组播出现以来，尽管其技术上具有一定的优势，但并未得到广泛的应用。本文首先简要介绍IP组播的原理和体系结构．然后从ISP、用户、ASM模型等几个方面重点分析了传统IP组播没有得到大规模商业应用的原因，最后介绍了一种组播的改进模型——源特定组播(SSM)。     

Adaptive Core Multicast Routing Protocol

The Adaptive Core Multicast Routing Protocol (ACMRP) is proposed for multicast routing in ad hoc networks. ACMRP is on demand core-based multicast routing protocol that is based on a multicast mesh. In ACMRP, a core is not well-known and it adapts to the current network topology and group membership. The enhanced adaptivity minimizes the core dependency and, accordingly, improves performance and robustness of ACMRP. A multicast mesh is created and maintained by the periodic flooding of the adaptive core. Since the flooding traffic is evenly maintained and a mesh provides rich connectivity among group members, ACMRP can achieve efficiency, scalability, and effectiveness. We evaluate scalability and performance of ACMRP via simulation.