When applying Software-Defined Networks(SDN) to WANs,the SDN flexibility enables the cross-domain control to achieve a better control scalability.However,the control consistence is required by all the cross-domain ser...When applying Software-Defined Networks(SDN) to WANs,the SDN flexibility enables the cross-domain control to achieve a better control scalability.However,the control consistence is required by all the cross-domain services,to ensure the data plane configured in consensus for different domains.Such consistence process is complicated by potential failure and errors of WANs.In this paper,we propose a consistence layer to actively and passively snapshot the cross-domain control states,to reduce the complexities of service realizations.We implement the layer and evaluate performance in the PlanetLab testbed for the WAN emulation.The testbed conditions are extremely enlarged comparing to the real network.The results show its scalability,reliability and responsiveness in dealing with the control dynamics.In the normalized results,the active and passive snapshots are executed with the mean times of 1.873 s and 105 ms in135 controllers,indicating its readiness to be used in the real network.展开更多
Y99-61525-15 0000403共平面毫米波集成电路(MMIC)(含5篇文章)=Ses-sionⅡ:coplanar MM-wave MMICs[会,英]//1998IEEE Radio Frequency Integrated Circuits Sympo-sium.—15～36(AZ)小型共平面毫米波集成电路(MMIC)是大容量低成本毫米...Y99-61525-15 0000403共平面毫米波集成电路(MMIC)(含5篇文章)=Ses-sionⅡ:coplanar MM-wave MMICs[会,英]//1998IEEE Radio Frequency Integrated Circuits Sympo-sium.—15～36(AZ)小型共平面毫米波集成电路(MMIC)是大容量低成本毫米波应用中不可缺少的。共平面介质模型正走向成熟,共平面 MMIC 正产生现代水平的高性能。在逐步地制造着共平面配置中采用新型无源结构的 Si/SiGe MMIC。本部分主要介绍共平面技术在从 K 波段到 W 波段的各种单个用和重要标准部件上的应用。倒装焊封装的 W 波段共平面 MMIC 可能是未来的自动 MMIC。展开更多
基金supported by the National Basic Research Program of China (2012CB315903)the Program for Key Science and Technology Innovation Team of Zhejiang Province(2011R50010,2013TD20)+3 种基金the National High Technology Research Program of China(2015AA016103)the National Natural Science Foundation of China(61379118)the Research Fund of ZTE CorporationJiaxing Science and Technology Project (No.2014AY21021)
文摘When applying Software-Defined Networks(SDN) to WANs,the SDN flexibility enables the cross-domain control to achieve a better control scalability.However,the control consistence is required by all the cross-domain services,to ensure the data plane configured in consensus for different domains.Such consistence process is complicated by potential failure and errors of WANs.In this paper,we propose a consistence layer to actively and passively snapshot the cross-domain control states,to reduce the complexities of service realizations.We implement the layer and evaluate performance in the PlanetLab testbed for the WAN emulation.The testbed conditions are extremely enlarged comparing to the real network.The results show its scalability,reliability and responsiveness in dealing with the control dynamics.In the normalized results,the active and passive snapshots are executed with the mean times of 1.873 s and 105 ms in135 controllers,indicating its readiness to be used in the real network.
文摘Y99-61525-15 0000403共平面毫米波集成电路(MMIC)(含5篇文章)=Ses-sionⅡ:coplanar MM-wave MMICs[会,英]//1998IEEE Radio Frequency Integrated Circuits Sympo-sium.—15～36(AZ)小型共平面毫米波集成电路(MMIC)是大容量低成本毫米波应用中不可缺少的。共平面介质模型正走向成熟,共平面 MMIC 正产生现代水平的高性能。在逐步地制造着共平面配置中采用新型无源结构的 Si/SiGe MMIC。本部分主要介绍共平面技术在从 K 波段到 W 波段的各种单个用和重要标准部件上的应用。倒装焊封装的 W 波段共平面 MMIC 可能是未来的自动 MMIC。
