新网络体系基础研究——一体化网络与普适服务

现有信息网络的原始设计思想基本上是一种网络支撑一种主要服务的解耦模式,难以满足网络和服务的多样性需求.本论文从现有多种信息网络存在的严重弊端出发,研究和探索新一代信息网络体系的基础理论,给出一体化网络与普适服务新体系结构模型;创造性地提出新网络体系下的网络一体化模型与理论,建立接入标识、广义交换路由标识及其映射理论;提出普适服务体系模型与理论,创建服务标识及其映射理论、连接标识及其映射理论;最后通过原型系统对上述机理、原理及理论进行验证,实验结果表明,这种新的网络体系在有效地解决现有网络安全、移动、异质异构等弊端的同时,可支持普适服务.     

UDP实现基于标识的终端移动性支持方案

在分析了各种终端移动性支持协议的基础上,提出了一种将接入标识和交换路由标识分离的终端移动性支持方案,并基于UDP协议实现.通过实验表明该方案具有可行性,并且与目前的各种终端移动性支持协议相比,可以很好地支持终端的移动性,保证用户的隐私性、安全性和核心设备的安全性,保障网络的可控可管性.文章还针对此方案大规模应用时会出现的问题做出了预测,并提出了初步的解决方法.     

新互联网体系理论及关键技术

互联网在可信(安全、可靠、可控、可管)等方面存在严重弊端。为解决这些问题,文章研究和探索新一代互联网体系的基础理论,给出了新网络的体系结构模型;创造性地提出新网络体系下的交换路由模型与理论,建立接入标识、广义交换路由标识及其映射理论;提出普适服务体系模型与理论,创建服务标识及其映射理论、连接标识及其映射理论;并对新互联网体系中的接入控制管理、可信路由及服务质量、多流传输、网络监测管理等关键技术进行了研究和探讨。     

基于一体化网络的普适服务研究

在深入分析研究、归纳总结各种传统网络服务的共性机理与理论的基础上,设计构思基于一体化网络的普适服务总体模型体系,创建了服务标识机制与理论,完成对各种网络服务的统一描述和标识,以实现多种服务的统一处理;建立连接标识机制与理论,有效解决了普适服务的移动性和安全性问题,并在此基础上给出新传输协议,以支持语音、数据等多种服务;提出服务标识解析映射和连接标识解析映射机理与理论,实现了一体化网络下的服务多连接建立和多路径传输;最后通过原型系统实现和仿真分析证明普适服务机理和理论的正确性、有效性和可行性.     

变长标识统一接入在一体化网络中的研究和实现

首先描述了一体化网络对变长标识接入的需求,在对一体化网络的体系结构以及映射机制进行深入研究的基础上,设计了变长接入标识在一体化网络中的统一接入映射方案,分析了在此方案中32位标识接入到一体化网络时的处理流程,并对其主要功能进行了结构分析与模块设计;最后按照设计方案进行了该方案主体功能的仿真和测试,测试结果和预期分析处理结果一致。     

基于路由器的NAT系统的扩展与实现

在研究分析NAT不同解决方案的特点的基础上,提出了一个基于路由器NAT系统的接入地址和交换路由地址分离的方案,并在路由器上实现了该方案.实验结果表明,该方案具有可得性,精确性和时效性,为解决普适计算环境中的可直达性问题,提供了依据.同时,该方案中节点标识与位置无关,并且与路由标识的相互分离,本质上是接入地址和交换路由地址分离思想进一步深入,对于研究未来分组网的移动协议具有较大意义.     

HIP技术在异构网融合中的应用

传统TCP/IP网络中的IP扮演着主机标识和路由的双重角色,而主机身份标识协议（Host Identity Protocol,HIP）的出现则引起了网络层次的较大改变,它把IP用来标识主机的功能剥离出来,从而解决了IP地址在网络中由于多种协议需要其标识身份而带来的困难。文中通过将HIP协议应用于移动终端的方式,保证了移动终端在进行网络切换时（改变IP）的通信不中断,从而为异质网络融合提供了基本的技术支持。     

一种面向服务的算网路由架构方案

网络感知算力并据此执行算网融合路由，是算网融合在网络基础设施侧的一种重要技术方案。相对于传统基于主机地址的网络路由机制，算网路由最主要的增量是在网络侧引入分布式多算力实例的优选，因此位置和归属无关的服务标识将成为新的寻址和路由标的。阐述了一种端到端的算网路由解决方案及其对路由协议的影响，并基于典型场景和测试用例，分析了面向服务标识的算网路由架构方案在功能和性能维度的收益。     

CONGN网络的路由交换与分配研究

文章比较了电话交换、广播电视接入方式和分组交换技术的特点,提出了综合这三种业务的面向连接的NGN网络的路由交换与分配方案。这种网络由五级节点组成,最多可经过八个路由交换节点。每一节点包含三层交换。研究表明,CONGN技术是一种三网合一的可选方案,通过点对点的连接,可实现可靠安全的线速数据传输与交换。     

适合NGN的VPN承载平台的构建和应用推进

MPLS VPN是一种基于MPLS技术的IP VPN,是在网络路由和交换设备上应用MPLS技术、简化核心路由器的路由选择方式,是结合传统路由技术和标记交换实现的IP虚拟专用网络,可用来构造宽带的Intranet和Extranet,满足多种灵活的业务需求。MPLS VPN技术可以把现有的IP网络分解成逻辑上隔离的网络,这种网络的应用是非常丰富的：可以解决企业互连、政府要构互连的问题,也可以用来提供新的业务(如为IP电话业务专     

Distributed mapping management of identifiers and locators in mobile‐oriented Internet environment

Many schemes have recently been proposed for the separation of identifier (ID) and locator (LOC), which include the Host Identity Protocol, the Identifier‐Locator Network Protocol, and the Locator Identifier Separation Protocol. However, all of these schemes were originally designed in fixed network environment, rather than mobile network environment. In particular, these schemes are based on a centralized map server that is used as an anchor point for mobile nodes, and thus intrinsically subject to some limitations in a mobile environment. In this paper, we propose a distributed ID‐LOC mapping management scheme in a mobile‐oriented Internet environment. In the proposed scheme, we assume that a host has a globally unique and hierarchical Host ID (HID) that contains the information of its home network domain. Each network domain has a distributed map server for distributed management of ID‐LOC mappings. For roaming support, each distributed map server maintains its own home HID register and visiting HID register, which are used to keep the mappings of HID and LOCs for mobile nodes in the distributed manner. By performance analysis, it is shown that the proposed distributed scheme can give better performance than the existing centralized schemes in terms of ID‐LOC binding update and data delivery costs. Copyright © 2012 John Wiley & Sons, Ltd.     

Routing in the Manhattan Street Network

The Manhattan Street Network is a regular, two-connected network, designed for packet communications in a local or metropolitan area. It operates as a slotted system, similar to conventional loop networks. Unlike loop networks, routing decisions must be made at every node in this network. In this paper, several distributed routing rules are investigated that take advantage of the regular structure of the network. In an operational network, irregularities occur in the structure because of the addressing mechanisms, adding single nodes, and failures. A fractional addressing scheme is described that makes it possible to add new rows or columns to the network without changing the addresses of existing nodes. A technique is described for adding one node at a time to the network, while changing only two existing links. Finally, two procedures are described that allow the network to adapt to node or link failures. The effect that irregularities have on routing mechanisms designed for a regular structure is investigated.     

IDNet: Beyond All‐IP Network

Recently, new network systems have begun to emerge (for instance, 5G, IoT, and ICN) that require capabilities beyond that provided by existing IP networking. To fulfill the requirements, some new networking technologies are being proposed. The promising approach of the new networking technology is to try to overcome the architectural limitations of IP networking by adopting an identifier (ID)‐based networking concept in which communication objects are identified independently from a specific location and mechanism. However, we note that existing ID‐based networking proposals only partially meet the requirements of emerging and future networks. This paper proposes a new ID‐based networking architecture and mechanisms, named IDNet, to meet all of the requirements of emerging and future networks. IDNet is designed with four major functional blocks — routing, forwarding, mapping system, and application interface. For the proof of concept, we develop numeric models for IDNet and implement a prototype of IDNet.     

一体化标识网络体系及关键技术

现有互联网由于原始设计模式方面的不足,不仅难以满足网络及服务的多元多样性需求,而且在移动性、安全性、可控可管性及服务质量支持方面存在着严重弊端。为解决这些问题,文章提出了一体化标识网络体系,创建了一体化标识网络的＂基础设施层＂和＂普适服务层＂理论及关键技术,建立了原型系统对上述网络体系与关键技术进行验证。实验结果表明,这种新的网络体系在有效地解决现有互联网安全、移动、可控可管等严重弊端的同时,可支持普适服务。     

Trust based negotiation bargaining game model for bandwidth management algorithms

Nowadays, Multi-hop Relaying Network (MRN) has gained wide acceptance as a next step towards future radio networks. MRN can extend the service area as well as improve the performance of wireless networks. To exploit the multi-hop relaying operation, an important issue is how to properly control wireless bandwidth. In this paper, a new bandwidth management scheme is proposed for MRNs. By integrating the random arrival rule and Nash bargaining model, the proposed scheme adaptively controls the wireless bandwidth to maximize network efficiency. In our scheme, trust value and bargaining powers are decided according to the Bayesian inference and real-time negotiation process, respectively. This approach can make the network system be close to the optimized network performance. To prove the effectiveness of the proposed scheme, a simulation has carried out. The results demonstrate the effectiveness of the proposed scheme in comparison with other existing schemes.     

可扩展固件接口的网络设备驱动

提出了基于EFI的网络设备驱动设计方法.通过研究EFI固有的驱动模型,分析通用网络驱动接口和简单网络协议,为网络设备驱动的实现提供了基本的接口和服务.分析了EFI网络设备的结构和组成,根据其特点,提出了3层结构模型的EFI网络设备驱动设计方案,阐述了如何以EFI驱动形式实现EFI网络设备驱动.通过设计并实现网络设备的基本功能,提出了EFI网络设备驱动的基本流程.