This paper proposes a virtual router cluster system based on the separation of the control plane and the data plane from multiple perspectives,such as architecture,key technologies,scenarios and standardization.To som...This paper proposes a virtual router cluster system based on the separation of the control plane and the data plane from multiple perspectives,such as architecture,key technologies,scenarios and standardization.To some extent,the virtual cluster simplifies network topology and management,achieves automatic conFig.uration and saves the IP address.It is a kind of low-cost expansion method of aggregation equipment port density.展开更多
Virtual routers are gaining increasing attention in the research field of future networks. As the core network device to achieve network virtualization, virtual routers have multiple virtual instances coexisting on a ...Virtual routers are gaining increasing attention in the research field of future networks. As the core network device to achieve network virtualization, virtual routers have multiple virtual instances coexisting on a physical router platform, and each instance retains its own forwarding information base （FIB）. Thus, memory scalability suffers from the limited on-chip memory. In this paper, we present a splitting-after-merging approach to compress the FIBs, which not only improves the memory efficiency but also offers an ideal split position to achieve system refactoring. Moreover, we propose an improved strategy to save the time used for system rebuilding to achieve fast refactoring. Experiments with 14 real-world routing data sets show that our approach needs only a unibit trie holding 134 188 nodes, while the original number of nodes is 4 569 133. Moreover, our approach has a good performance in scalability, guaranteeing 90 000 000 prefixes and 65 600 FIBs.展开更多
Network Functions Virtualization(NFV) is an attempt to help operators more effectively manage their networks by implementing traditional network functions embedded in specialized hardware platforms in term of virtuali...Network Functions Virtualization(NFV) is an attempt to help operators more effectively manage their networks by implementing traditional network functions embedded in specialized hardware platforms in term of virtualized software instances. But, existing novel network appliances designed for NFV infrastructure are always architected on a general-purpose x86 server, which makes the performance of network functions limited by the hosted single server. To address this challenge, we propose ApplianceB ricks, a novel NFV-enable network appliance architecture that is used to explore the way of consolidating multiple physical network functions into a clustered network appliance, which is able to improve the processing capability of NFV-enabled network appliances.展开更多
Network virtualization is a promising way for network innovation. Efforts have been made to develop virtual network platforms for both network researches and business applications. In this paper, we aim to provide a n...Network virtualization is a promising way for network innovation. Efforts have been made to develop virtual network platforms for both network researches and business applications. In this paper, we aim to provide a new solution to address the shortcomings of existing solutions. We propose MAVIN- a MAC address coding based virtual network platform. MAVIN avoids changing the nodes of the current Internet, and can provide high performance virtual networks with user-specified network protocols and link performance parameters. Comparing to existing network virtualization schemes, MAVIN can achieve layer-2 virtualization which has no extra forwarding overhead. We implement the virtual router prototype of MAVIN and establish a real MAVIN platform to evaluate its performance. Evaluation results show that MAVIN can support high performance virtual networks with excellent scalability.展开更多
基金supported by the Collaboration Research on Key Techniques of Future Network between China,Japan and Korea(2010DFB13470)~~
文摘This paper proposes a virtual router cluster system based on the separation of the control plane and the data plane from multiple perspectives,such as architecture,key technologies,scenarios and standardization.To some extent,the virtual cluster simplifies network topology and management,achieves automatic conFig.uration and saves the IP address.It is a kind of low-cost expansion method of aggregation equipment port density.
基金Project supported by the National Basic Research Program （973） of China （No. 2012CB315805）, the National Natural Science Foundation of China （Nos. 61173167 and 61472130）, the Prospective Research Project on Future Networks of Jiangsu Future Networks Innovation Institute, China （No. 2013095-1-05）, the Hunan Provincial Innovation Foundation for Postgraduate, China （No. CX2014B150）, and the State Scholarship Fund of China （No. 201406130048）
文摘Virtual routers are gaining increasing attention in the research field of future networks. As the core network device to achieve network virtualization, virtual routers have multiple virtual instances coexisting on a physical router platform, and each instance retains its own forwarding information base （FIB）. Thus, memory scalability suffers from the limited on-chip memory. In this paper, we present a splitting-after-merging approach to compress the FIBs, which not only improves the memory efficiency but also offers an ideal split position to achieve system refactoring. Moreover, we propose an improved strategy to save the time used for system rebuilding to achieve fast refactoring. Experiments with 14 real-world routing data sets show that our approach needs only a unibit trie holding 134 188 nodes, while the original number of nodes is 4 569 133. Moreover, our approach has a good performance in scalability, guaranteeing 90 000 000 prefixes and 65 600 FIBs.
基金supported by Program for National Basic Research Program of China (973 Program) "Reconfigurable Network Emulation Testbed for Basic Network Communication"
文摘Network Functions Virtualization(NFV) is an attempt to help operators more effectively manage their networks by implementing traditional network functions embedded in specialized hardware platforms in term of virtualized software instances. But, existing novel network appliances designed for NFV infrastructure are always architected on a general-purpose x86 server, which makes the performance of network functions limited by the hosted single server. To address this challenge, we propose ApplianceB ricks, a novel NFV-enable network appliance architecture that is used to explore the way of consolidating multiple physical network functions into a clustered network appliance, which is able to improve the processing capability of NFV-enabled network appliances.
基金supported by the National High-Tech Research and Development Program of China(863 Program) under Grant 2015AA015701
文摘Network virtualization is a promising way for network innovation. Efforts have been made to develop virtual network platforms for both network researches and business applications. In this paper, we aim to provide a new solution to address the shortcomings of existing solutions. We propose MAVIN- a MAC address coding based virtual network platform. MAVIN avoids changing the nodes of the current Internet, and can provide high performance virtual networks with user-specified network protocols and link performance parameters. Comparing to existing network virtualization schemes, MAVIN can achieve layer-2 virtualization which has no extra forwarding overhead. We implement the virtual router prototype of MAVIN and establish a real MAVIN platform to evaluate its performance. Evaluation results show that MAVIN can support high performance virtual networks with excellent scalability.
