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Network services are a critical component of today's networks. They apply critical functions (e.g. security, routing or quality of service) to traffic to enhance the network operators and application consumers experience. Today these services are inserted physically on the data-forwarding plane without providing much flexibility to deal with different traffic types or affiliations. Cloud Computing,...
One of the fundamental requirements of Cloud Computing is the capability to provide scalable, transparent and isolated networks. This is achieved by using L2 segmentation via 802.1Q VLANs or overlay approaches such as 802.1ad, VxLAN, "Stateless Transport Tunneling" (STT) or "Network Virtualization using Generic Routing Encapsulation" (NVGRE). All of these technologies struggle...
Classification ambiguity in Cloud Computing has a catastrophic impact on cloud providers, their services and tenants. It limits the application of various network services to traffic either inside or outside a cloud. This is because IP addresses, VLANs and other transport-level technologies lack the functionality to cope with the highly dynamic, scalable and virtualized environment of cloud-enabled...
One of the major concerns cloud computing platforms face today is the lack of a unique identification of the "who" within the network infrastructure. State-of-the-art technologies (such as VLANs or IP addresses) lack functionality to cope with the highly dynamic and scalable, ever changing and virtualized cloud-enabled data center infrastructures. A shared and limited address space or the...
Cloud Computing facilitates the new generation of IT and the provisioning of services by introducing virtualization concepts throughout the network. Multi-tenancy introduces the capability to share cloud assets among service users. Service providers currently lack innovative means to enable true multi-tenancy in a cloud environment. There is an urgent need for technologies that introduce tenant security,...
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