OpenFlow: enabling innovation in campus networks
ACM SIGCOMM Computer Communication Review
The Big Switch: Rewiring the World, from Edison to Google
The Big Switch: Rewiring the World, from Edison to Google
VL2: a scalable and flexible data center network
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
A Single-Chip, 10-Gigabit Ethernet Switch LSI for Energy-Efficient Blade Servers
GREENCOM-CPSCOM '10 Proceedings of the 2010 IEEE/ACM Int'l Conference on Green Computing and Communications & Int'l Conference on Cyber, Physical and Social Computing
Automated migration of port profile for multi-level switches
Proceedings of the 3rd Workshop on Data Center - Converged and Virtual Ethernet Switching
DomainFlow: practical flow management method using multiple flow tables in commodity switches
Proceedings of the ninth ACM conference on Emerging networking experiments and technologies
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Overlay networks stretch a Layer 2 network and increase mobility of virtual machines. VXLAN (Virtual eXtensible LAN) is one of Layer 2 overlay schemes over a Layer 3 net- work proposed in IETF and its definition covers 16M overlay networks or segments which solves 4K limitation of VLANs. However VXLAN uses IP multicast for the isolation of net- work traffic by tenant in the shared network infrastructure. IP multicast requires great amount of resources such as IP multicast table and CPU therefore the scalability is to be limited by handling of IP multicast. We propose to manage IP multicast in overlay networks using OpenFlow instead of using dynamic registration protocol such as IGMP. We describe our implementations of VXLAN controller, edge switch with VXLAN gateway and OpenFlow switch. Our method using OpenFlow eliminates periodical Join/Leave messages and achieves more than 4k tenants in our Layer 2 network at server edges, which was not possible before.