The exploitation of Wireless Sensor Networks (WSN) is constrained by limited power, low computing power and storage and short-range radio transmission. Many routing protocols respecting these constraints were develope...The exploitation of Wireless Sensor Networks (WSN) is constrained by limited power, low computing power and storage and short-range radio transmission. Many routing protocols respecting these constraints were developed but, it still lacks formal and standardized solutions being able to help in their configuration. The configuration management that responds to this concern is very important in this type of network. It consists of the definition of data models to configure and is very necessary for the good network performance. Tangible results were obtained in traditional networks with the emergence of NETCONF and YANG standards, but on the best of our humble knowledge there are none yet in WSNs. We propose in this paper wsn-routing-protocol, a YANG data model for routing protocols configuration in WSNs. Following our model, we propose two YANG configuration data models based on the latter: they are respectively aodv for AODV and rpl for RPL.展开更多
针对高可靠实时性的软件定义网络(Software Defined Network,SDN)对控制器与网络设备配置数据同步的需求,采用网络配置(Network Configuration,NETCONF)协议作为南向协议,在遵循现有控制器框架的基础上,设计了一种高可靠的SDN南向数据...针对高可靠实时性的软件定义网络(Software Defined Network,SDN)对控制器与网络设备配置数据同步的需求,采用网络配置(Network Configuration,NETCONF)协议作为南向协议,在遵循现有控制器框架的基础上,设计了一种高可靠的SDN南向数据对账系统。该系统利用YANG语言进行数据建模,并在此基础上提出了基于分片分块的数据巡检拉取和基于数据指纹生成的记录快照的数据比对方法。相比于当前主流商用控制器所给出的配置同步保障方案,该方案在大规模的SDN网络环境具有更好的性能和更高的效率。展开更多
针对近些年网络新业务和新技术应用不断增长的趋势,介绍了光网领域应用软件定义网络(SDN)技术的重要性。重点研究分析了2种面向IP和光传送网(OTN)协同的SDN技术——ONF Transport API(TAPI)和OpenDayLight Transport PCE(TPCE),包括它...针对近些年网络新业务和新技术应用不断增长的趋势,介绍了光网领域应用软件定义网络(SDN)技术的重要性。重点研究分析了2种面向IP和光传送网(OTN)协同的SDN技术——ONF Transport API(TAPI)和OpenDayLight Transport PCE(TPCE),包括它们具体的技术细节以及如何实现跨域跨厂家多层网络管控,并对它们的技术特点进行了比较。最后展望了这2种SDN技术未来的发展方向。展开更多
文摘The exploitation of Wireless Sensor Networks (WSN) is constrained by limited power, low computing power and storage and short-range radio transmission. Many routing protocols respecting these constraints were developed but, it still lacks formal and standardized solutions being able to help in their configuration. The configuration management that responds to this concern is very important in this type of network. It consists of the definition of data models to configure and is very necessary for the good network performance. Tangible results were obtained in traditional networks with the emergence of NETCONF and YANG standards, but on the best of our humble knowledge there are none yet in WSNs. We propose in this paper wsn-routing-protocol, a YANG data model for routing protocols configuration in WSNs. Following our model, we propose two YANG configuration data models based on the latter: they are respectively aodv for AODV and rpl for RPL.
文摘针对高可靠实时性的软件定义网络(Software Defined Network,SDN)对控制器与网络设备配置数据同步的需求,采用网络配置(Network Configuration,NETCONF)协议作为南向协议,在遵循现有控制器框架的基础上,设计了一种高可靠的SDN南向数据对账系统。该系统利用YANG语言进行数据建模,并在此基础上提出了基于分片分块的数据巡检拉取和基于数据指纹生成的记录快照的数据比对方法。相比于当前主流商用控制器所给出的配置同步保障方案,该方案在大规模的SDN网络环境具有更好的性能和更高的效率。
文摘针对近些年网络新业务和新技术应用不断增长的趋势,介绍了光网领域应用软件定义网络(SDN)技术的重要性。重点研究分析了2种面向IP和光传送网(OTN)协同的SDN技术——ONF Transport API(TAPI)和OpenDayLight Transport PCE(TPCE),包括它们具体的技术细节以及如何实现跨域跨厂家多层网络管控,并对它们的技术特点进行了比较。最后展望了这2种SDN技术未来的发展方向。