Xen and the art of virtualization
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
OpenFlow: enabling innovation in campus networks
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Floodless in seattle: a scalable ethernet architecture for large enterprises
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
PortLand: a scalable fault-tolerant layer 2 data center network fabric
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
VL2: a scalable and flexible data center network
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Diverter: a new approach to networking within virtualized infrastructures
Proceedings of the 1st ACM workshop on Research on enterprise networking
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HotCloud'09 Proceedings of the 2009 conference on Hot topics in cloud computing
Secure cloud computing with a virtualized network infrastructure
HotCloud'10 Proceedings of the 2nd USENIX conference on Hot topics in cloud computing
NetLord: a scalable multi-tenant network architecture for virtualized datacenters
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A case for overlays in DCN virtualization
Proceedings of the 3rd Workshop on Data Center - Converged and Virtual Ethernet Switching
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These days, various academic and industrial institutions are sharing the computing resources of cloud data centers. For the sake of security, data center networks need to be separated by institution or department. One conventional approach is using tag-based VLAN standardized in IEEE 802.1Q. However, this approach cannot accommodate scalable networks because of a limitation on the number of VLAN IDs. To address this problem, we propose HostVLAN, a novel multi-tenant technique for scalable networks. To provide logical isolated networks for individual tenants (e.g., academic and industrial institutions), end host servers deployed in a data center filter receiving network data and forward them to designated virtual machines on the basis of isolation information. To reduce the broadcast traffic for the protocols, ARP and DHCP, end host servers convert the broadcast data into unicast data. Unlike conventional approaches that work in cooperation with switches, HostVLAN provides multi-tenant environments at the end-host-server side. To build a HostVLAN-based network architecture, we extended three virtual network switches supported by KVM and Xen VMMs. The results of performance evaluation demonstrate that HostVLAN can be scaled up to large numbers of multitenant networks with little overhead.