Distributed Queue Model for Non Real-Time Traffic Storage in the Future IPv6 Networks

Distributed Queue Model for Non Real-Time Traffic Storage in the Future IPv6 Networks

In the future Internet, due to the extensive Quality of Service (QoS) and traffic/flow management schemes developed for real-time traffics, the packet drops that occur in the non real-time and delay tolerant traffics increase significantly especially over the access networks. Furthermore temporary out of coverage which is common in wireless and mobile networks also leads to early packet drops. This packet drops in turn, cause considerable degradation of performance especially for large packets and over the long paths due to retransmission in upper layer. To address this issue, we propose the Distributed Queue Storage (DQS) for delay-tolerant traffics. This technique utilizes a preconfigured routing loop in order to construct a virtual storage over the queues of all routers in the loop. Therefore instead of early drop, non real-time and delay tolerant traffics can be sent backward or to the neighbor networks which have considerable resources compared to the network which is the next destination of the packet, to be returned to the router with some delay. We present the DQS model and focus on its loop-delay storage dynamic capacity. The parameters that affect this capacity are also discussed. In addition, we show that the loop-delay dynamic capacity only depends on the forwarding rate of the routers and the loop delay.