A scheme that defending against distributed denial of service (DDoS) attacks adopts the mechanism of Distribution-based Secure Overlay Nodes (DSON) to a large-scale ISP (Internet Service Provider) network is presented. The scheme uses local BPG announcement to divert traffic to the overlay network when experiencing high load, then filtering algorithm based on the technology of signal processing...

The key role of traffic meter for quality of service admission control internet is to control the amount of traffic injected into the differentiated service network so that congestion can be avoided to the barest minimum in order to meet certain performance requirements. This paper presents performance evaluation and analysis of two traffic meters: token bucket marker (TBM) and two rate three c...

This work attempts to characterize network traffic flows originating from large-scale video sharing services such as YouTube. The key technical contributions of this paper are twofold. We first present a simple and effective methodology that identifies traffic flows originating from video hosting servers. The key idea behind our approach is to leverage the addressing/naming conventions used in ...

Traffic management is a business domain characterized by an infrastructure-dominant approach to new developments: the focus is typically on innovating assets such as traffic detection systems, road signage and traffic information systems. This domain also has a large number of involved stakeholders, such as road authorities, municipalities, technology providers and road users of various kinds. ...

To serve traffic with different characteristics and service requirements in multimedia wireless packet networks] we propose a multiaccess methodology PGPS/RAP with guaranteed quality-of-service (40s) to serve constant-bit-rate (CBR), variable-bit-rate (VBR), and available bit rate (ABR) traffic sources. This multiaccess methodology without any specific frame concept can guarantee worst-case del...

In this paper, we define a general service abstraction for a network element. The service abstraction is defined in terms of a “service mapping,” which is a montotone operator that maps an arrival process to a lower bound on the corresponding departure process. We consider service mappings which are shift invariant, which includes the previously studied service curve model defined in terms of c...

The current broadband networks allow a number of widely disparate traffic streams to share common resources through statistical multiplexing. How efficiently the resource sharing can be managed depends critically upon the analysis of statistical characteristics of the traffic. Numerous analyses of traffic measurements have shown that a large variety of network traffic, in WAN as well as in LAN,...

The collection of vehicular tolls at Port Authority tunnels and bridges is one of the most important operations conducted by the police personnel. More than 250 traffic officers are utilized, and the payroll costs exceed a million dollars annually. In staffing its toll plazas the Port Authority attempts to handle traffic with a minimum number of toll collectors consistent with uniformly good se...

Rate-based congestion control promises effective traffic management for the ABR service class suitable to data communications in ATM networks. There have been proposed several rate-based congestion control schemes in the ATM Forum, including Enhanced Proportional Rate Control Algorithm (EPRCA) and EPRCA++ methods. While many studies have been devoted for these schemes in the past, only ABR traf...

A steady-state M/M/c queueing system under batch service interruptions is introduced to model the traffic flow on a roadway link subject to incidents. When a traffic incident happens, either all lanes or part of a lane is closed to the traffic. As such, we model these interruptions either as complete service disruptions where none of the servers work or partial failures where servers work at a ...