Mobile ad-hoc network is an infrastructure less network that is consisting of mobile nodes which communicate with each other via wireless links. This network is self-configuring, decentralized. In MANET’s all participating nodes act as router and these nodes are free to move randomly. In MANET, transmission failure occurs due to several reasons, such as node mobility, energy deficiency. In mult...

This paper proposes a management of DiffServ-over-MPLS transit network with BFD(Bidirectional Forwarding Detection)/OAM (operation, administration and maintenance) in ForCES (Forwarding and Control Element Separation) architecture for QoS-guaranteed DiffServ-over-MPLS traffic engineering. The proposed BFD and ForCES functions are implemented on Intel 2400 network processor, where BFD/OAM packet...

As network transmission speeds increase, packet streams increasingly uncover fine details of the interior behavior of router hardware and software. This behavior reveals itself as a set of harmonic effects, as interior clocks periodically interrupt packet forwarding, and interior queues periodically empty and fill. We examine this behavior with a Linux-based router employing a variety of gigabi...

Optimal utility-based congestion control is an optimization approach to congestion control problems where the objective is to maximize the aggregate source utility over their transmission rates. It has been used to analyze Internet congestion control schemes. In this paper, we develop a discrete congestion control scheme to manage congestion internal to a cluster-based router. We simulate our p...

Sites with the same priority are gathered in the same group. Communication inside a group is organized in a logical rooted tree structure. The tree’s root is the site that last held the token. This organization is similar to that of Raymond's algorithm. For its external communications, a group resorts to an external supplementary element: a router. This router manages external communications. T...

This paper presents the impact of congestion control mechanisms proposed for Flow-Aware Networks on packet transmission in the overloaded network after a link failure. The results of simulation based analysis show how to set the values of the congestion control parameters in order to decrease the acceptance time of the interrupted streaming flows in the backup link. The research was performed f...