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边缘节点
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  edge node
     The FPGA Design for the Edge Node and Core Node in OBS and LOBS Network
     OBS及LOBS网络边缘节点和核心节点FPGA设计
短句来源
     Wavelength Arrangement Scheme in OBS Edge Node
     OBS边缘节点波长调度方案的研究
短句来源
     Burst Queue Schemes in Optical Burst Switching Network Edge Node
     光突发交换网络边缘节点突发排队方案
短句来源
     Burst Assembly Schemes in Optical Burst Switching Network Edge Node
     光突发交换网络边缘节点突发装配方案
短句来源
     Research of Receiving Equipment in Edge Node of OBS
     OBS边缘节点接收设备的研究
短句来源
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  edge nodes
     Furthermore, the edge nodes of the intelligence networks are bound to have the capability of service discovery. At the boundary of the networks that realize connection based on UNI model, UNI-C indicates the capability of client equipment to UNI-N and gets information about service capability of transport network from UNI-N as well.
     此外,智能光网络的边缘节点应该具有业务发现能力,从而在以UNI接口模型实现的网络互联中,UNI-C指示客户设备能力且从UNI-N获取跟传送网络业务能力有关的信息。
短句来源
     OBS and LOBS networks are all composed of the edge nodes.
     OBS以及LOBS网络由边缘节点和核心节点组成。
短句来源
     An experiment of 4-port and 8-wavelength optical burst switching(OBS) network is designed. The experimental system includes one core switching node,four edge nodes and dense wavelength divide multiplexing(DWDM) transmission systems.
     设计了4端口8波长光突发交换(OBS)网络实验系统,其包括1个核心交换节点、4个边缘节点和密集波分复用(DWDM)传输系统。
短句来源
     An OBS network is composed of the edge nodes and the core nodes, the service access is performed at the edge nodes of the network.
     OBS网络由边缘节点和核心节点组成,网络在边缘节点处完成业务的接入。
短句来源
     Studies on Key Technologies to Enable Edge Nodes in Optical Packet-Switched Networks
     光分组交换网边缘节点关键技术的研究
短句来源
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  edge router
     Edge Router Design for Hybrid Optical Burst Switching and Optical Circuit Switching
     光突发与光电路混合交换边缘节点的设计与实现
短句来源
     Based on the national 863 project "Key Technology and Test-bed of Optical Burst Switching", this paper detailed discusses the realization of burst assembly algorithm in OBS edge router.
     本论文围绕国家863计划资助课题“光突发交换关键技术和实验系统”,详细讨论了实验系统中边缘节点突发包组装器的实现方案。
短句来源
     An edge router for hybrid optical switching network which mixed OBS and OCS together was designed and implemented in the experimental system.
     提出了一种将光电路交换和光突发交换融合于同一网络的边缘节点设计方案.
短句来源
  “边缘节点”译为未确定词的双语例句
     When data packets from 1000M Ethernets get into an ingress node, they firstly pass a 10B/8B decoder, and then they are stripped of their Ethernet package and added a label.
     以太网数据进入边缘节点后,首先经过10B/8B解码、去除以太网帧头,然后加上标签并分类组装成突发包。
短句来源
     This paper, supported by the national 863 project, "OBS key technologies and experimental system" and "LOBS key technologies and experimental system", provides the FPGA solution and implementation, especially the realization of the Time Scheduling Algorithms on FPGA.
     本论文围绕国家“863”计划资助课题“光突发交换关键技术和试验系统”以及“标签光突发交换关键技术和试验系统”,对OBS以及LOBS网络中边缘节点以及核心节点的FPGA,特别是资源调度策略进行了分析和设计。
短句来源
     Optical Burst Switching is one of solutions for realizing IP over DWDM, in this paper, we introduce how to classify service and control some parameters in order to support a better QoS in OBS layer.
     光突发交换(OBS)技术是IP over DWDM的一种实现形式,研究了如何在OBS网络中的边缘节点对业务分类并合理控制一些参数以便让OBS层支持更好的QoS服务。
短句来源
     The results show that for normal load, UDP protocol can get better support from OBS edge routers than TCP protocol;
     结果表明:在正常负载下,OBS边缘节点对UDP协议的支持能力高于对TCP协议的支持能力;
短句来源
     The adaptive model is composed of small-size multicast trees and P2P domains which is the set of marginal nodes connected with multicast tree.
     该模型由小规模组播树和连接组播树的边缘节点组成的P2P自治域共同组成。
短句来源
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  edge node
Moreover, a modified type of Z-map model was developed to reduce the entry/exit angle calculation error in the cutting force prediction and named the moving edge node Z-map (ME Z-map).
      
The capacity of a single wavelength path may be sometimes too large to accommodate the traffic between edge node pairs, and the label space may be too small to assign the labels to each packet or flow.
      
However, as far as we know, there is no research about the burstification queue management (BQM) aspect, which refers to how many burstification queues (BQ) we should set at each OBS edge node and how to manage these BQs.
      
Traditionally, it is simply regarded that each ingress edge node needs G· S queues to sort incoming packets, one for each possible destination and QoS class.
      
The SDB policy, though simple, lacks scalability since we have to add S BQs at each OBS edge node if an extra OBS edge node is added to the OBS network.
      
更多          
  edge nodes
Circular cavities are inserted into the interior of the domain from which the internal topology is then revealed by migration of the cavity edge nodes.
      
Finally a smoothing process is done to reposition the edge nodes, face nodes and internal nodes sequentially before the new mesh is exported for use in continued calculation.
      
It has been verified on the various domains with complex geometry and with nonuniform distribution of edge nodes such as the discretisation of the switched reluctance motor and power cable configuration, respectively.
      
The AC strategy covers intra- and interdomain operation, without adding significant complexity to the network control plane and involving only edge nodes.
      
Suppose there are G destinations (egress edge nodes) and the OBS network provides S different quality of service (QoS) classes.
      
更多          
  edge router
For executing the scheme, the conception for unit input bit rate is introduced to improve universality, and the assembly algorithm with a buffer safety space under the self-similar traffic model at each ingress edge router is proposed.
      
At an edge router, the arrival rates of each flow are estimated, each packet then being labelled with this estimate.
      
At a core router, all the functions performed by an edge router are repeated, excluding the flow rate estimation.
      
We also extend our efforts to implement a DiffServ domain monitoring system that monitors a set of DiffServ-enabled routers and traffic aggregates between every edge router pair.
      
The results show that the scheme can provide more efficient QoS guarantee in optical burst switched networks, even for 32 random packet sources at an edge router, the packet loss ratio is to 5 × 10-5, and the valid data ratio reaches 99.7%.
      
更多          


Let it be set that a fitting curve passing through n + 2 nodes Po,P1,......Pn+1 consists of 2(n+1) smoothly connected segments of circular arcs (Po,Qo,P1,......,Pn,Qn,Pn+1)with the given tangential directions in bothend nodes Po,Pn+1 Then from the criterion P0 Pn+1 k2ds=min (k:curvat--nre; s: arclength ) ,we can obtain approximately a system of linear equations,similar to that in solving the cubic spline.By solving this system of linear equations,We can determine tangential directions in each node,If we select...

Let it be set that a fitting curve passing through n + 2 nodes Po,P1,......Pn+1 consists of 2(n+1) smoothly connected segments of circular arcs (Po,Qo,P1,......,Pn,Qn,Pn+1)with the given tangential directions in bothend nodes Po,Pn+1 Then from the criterion P0 Pn+1 k2ds=min (k:curvat--nre; s: arclength ) ,we can obtain approximately a system of linear equations,similar to that in solving the cubic spline.By solving this system of linear equations,We can determine tangential directions in each node,If we select other tangential points of adjacent arcs Qo,Q1,......Qn so that PiQi=QiPi+1(i=0,1,......n) ,the radius and the center ofevery circular arc are thus determined.Such a set of circular arcs is called "Biarc Spline",which is indepent of the coordinate system,effecti-vely reduces the fluctuation in curvature and makes the curvature of the whole fitting curve vary evenly and gently.

设通过n+2个节点P_0,P_1……P_n,P_(n+1)的拟合曲线是由2(n+1)段光滑连接的圆弧(P_0,Q_0,P_1,Q_1……,P_n,Q_n,P_(n+1)构成,且在边缘节点P_0,P_(n+1)上给定切向。则由判据 integral from P_0 to P_(n+1) k~2ds=min (k:曲率;s:弧长)可以近似得到与解三次样条相似的线性方程组。由此确定各节点上的切向。选定相邻圆弧的其他切点Q_0,Q_1,……Q_n使(?)(i=0,1,……n),因而决定每段圆弧的半径、圆心。这样一组圆弧,称为“双圆弧样条”,与坐标系无关,而且有效地降低了曲率起伏,使整个拟合曲线的曲率变化得均匀而缓和。

The improvement to conventional TCP/IP congestion mechanism in MPLS is proposed, in which endpoint congestion control algorithms are moved into network. The simulation shows that with the new mechanism, congestion can be inspected and controlled in time, round-trip delay is reduced and ingress traffic is edited. Thus total throughput and utility of buffer are improved.

结合 MPL S的网络特点 ,提出了一种适合 MPL S网络的主动式流量和拥塞控制机制 ,在网络边缘节点引入拥塞反馈处理 .实验证明 ,与传统的 TCP协议相比 ,该机制将流量和拥塞控制从用户端点扩展到 MPL S边缘路由器 ,能够更及时地检测与控制网络拥塞 ,缩短了控制时延 ,可以进行较精确的流量调节 ,实现了提高吞吐量和改善缓冲区利用率的目的 .

This paper presents a two phase distributed congestion management (TPDCM)mechanism that provides the fairness among competing aggregates and the improvement in packet loss ratio for Differentiated Services(DiffServ)network.The proposed mechanism has two congestion management phases,the edge-based phase and the host-based phase.It has three main elements,the feedback of network congestion status,the early congestion detection and the adaptive rate traffic conditioner.For the performance evaluation of the...

This paper presents a two phase distributed congestion management (TPDCM)mechanism that provides the fairness among competing aggregates and the improvement in packet loss ratio for Differentiated Services(DiffServ)network.The proposed mechanism has two congestion management phases,the edge-based phase and the host-based phase.It has three main elements,the feedback of network congestion status,the early congestion detection and the adaptive rate traffic conditioner.For the performance evaluation of the proposed mechanism,we present the simulation of the fairness of responsive and unresponsive traffic,and packet loss ratio.

提出一种新型的面向区分服务网络的分布式拥塞管理方案,基本思想是利用拥塞状态反馈信息在边缘节点或主机上实施拥塞管理。该方案主要包括三个组成部分:流量控制信息协议、早期拥塞检测和流量控制算法。该方案具有以下特点:(1)在核心网络中,拥塞控制机制独立于特定的传输层协议;(2)对将要发生的拥塞做出快速响应;(3)降低网络的分组丢失率;(4)不需要在网络核心节点中保存每个传输流的状态信息。实验结果表明,与标准的区分服务网络相比,该方案能在TCP和UDP聚集之间公平地分配带宽并能显著地降低分组丢失率。

 
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