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The cache-and-forward (CNF) architecture has recently been proposed as a "clean-slate" solution for efficient content delivery in the future Internet. The CNF architecture is based on the concept of hop-by-hop transport and in-network storage of content. In this paper, we investigate a gateway centric method for efficient content caching and routing in the CNF network. In this method, a...
Nowadays, Internet congestion is indicated by dropping packets when the routers buffers are full, or by dropping packets according to an AQM mechanism such as RED. Many mechanisms have been proposed to eliminate or minimize the effect of packet loss and tackle the consequential inefficiency due the retransmission of the dropped packets. Fast congestion notification (FN), that has been evaluated through...
Wireless mesh networks (WMNs) have become a network of choice to provide broadband wireless Internet connectivity where wired infrastructure is uneconomical or impractical to deploy. Their support for inexpensive broadband Internet services has made them even more attractive and increased users' demand. Even with their abundant computational resources in the form of mesh routers (MRs), WMNs suffer...
Network mobility is proposed to let a mobile network change its point of attachment and still keep all nodes attached to the mobile network globally reachable. However, due to finite bandwidth, limited signaling coverage and frequent link failure, a mobile network needs multihoming to access the Internet simultaneously on the perspective of performance and reliability. In this paper, we extends our...
With the growing number of mega services and cloud computing platforms, many industrial organizations are building distributed data centers and are populating them at increasing rates. At the same time, the field of complex event processing(CEP) is gaining popularity as its value is realized for real-time monitoring of these large distributed systems. Traditionally, the CEP system and core event passing...
In this letter, we question the superiority of current RED, PI and REM active queue management algorithms by proposing an improved droptail gateway. This improved drop tail adopts random packet drop to avoid global synchronization and deadlock of traffic flows; it also try to keep the instantaneous queue size around the predefined value. The simulation results manifest that this improved drop tail...
Routers configure their paths based on the Link State Database (LSDB) in order to meet service requirements and Quality of Service (QoS) guarantee. Internet routing can be categorized into intra domain routing and inter domain routing, and QoS should be guaranteed both at the intra and inter domains for end-to-end QoS guarantee. The LSDB can be easily managed and updated at the inter domain routing...
Most network operators have considered reducing Label Switched Routers (LSR) label spaces (i.e. the number of labels that can be used) as a means of simplifying management of underlaying Virtual Private Networks (VPNs) and, hence, reducing operational expenditure (OPEX). This letter discusses the problem of reducing the label spaces in Multiprotocol Label Switched (MPLS) networks using label merging...
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