Using active networks technology for dynamic QoS

Abstract

We propose a dynamic QoS, or D-QoS, model where QoS settings can be automatically reconfigured based upon requests from authorized users. Different levels of privilege can be assigned to users enabling higher privileged users to interrupt the network flows belonging to those of lower privileged levels. To request for a special QoS treatment, a user can issue an active packet to interrupt any active node along its flow path which is D-QoS enabled. The request for a specific interruption level is approved by a D-QoS enabled node which allows for multi-level interruptions to be handled. After an interrupting flow has completed transmitting all its packets, D-QoS enabled node can resume its services for those pending flows which are of lower privilege levels. In this paper, we describe the overall concept of D-QoS and demonstrate how it can be implemented by a small prototype. Using simulation, we show that the proposed system can provide assurance for privileged flows with an improved network utilization where bandwidth is shared among the flows according to the levels of privilege. D-QoS should be deployed on those bottleneck hops with limited bandwidth on the edge network to ensure the best service is given to privileged users.

Enabling Adaptive Routing Service Customization via the integration of SDN and NFV

“…Many researches have been done on dynamically allocating network resources to optimize the resource supply for routing services. In (Tansupasiri et al, 2006), a dynamic QoS routing model was proposed. To ensure the provision of the best services, it assigns different levels of privileges to different users, and uses interrupt mechanism to dynamically reconfigure QoS setting according to the user demands.…”

“…When providing services, (Tansupasiri et al, 2006;Mellouk et al, 2011) just considered the user's utility, while (Gu and Zhang, 2011;Balasubramaniam et al, 2009;Peculea et al, 2010) just considered the ISP's utility. In addition, all the above works made decisions to allocate resources and assemble functions for services mainly according to the local information.…”

QoS-Aware Dynamic MAP Selection in HMIPv6 Architectures

“…The user (i.e. network administrator) defines the mapping function of DSCP fields into Ti, Di and Ri preference level indicators, according to the agreed Service-level Agreement (SLA), in a similar manner as Per-Hop Behaviour (PHB) is defined in the DiffServ architecture [10], [11]. We have chosen the following mapping [1]:…”

Multiple layer design for mass data transmission against channel congestion in IoT

“…Anticipating the vast volumes of data generated, it includes mechanisms for moving intelligence and capabilities for IoT such as filtering, pattern recognition, machine learning, and decision-making to enable distributed and decentralized processing of the information, either locally or remotely in the server center [3]. In [17], it is dynamically classified as the network resources by the characteristics of data flow. Most of them identify the transmission priority of the packet before the packets are sent to the network.…”

“…From the perspective of cross-layer design, a special algorithm is used to dynamically select the parameters of each layer, such as transmission power of the physical layer, avoidance time of the MAC layer, and variable transmission rate range of the network layer [16]. In [17], it is dynamically classified as the network resources by the characteristics of data flow. These researches have achieved good results; however, all these are under the conditions that the link state can meet the QoS parameters required for applications.…”