problem quality of service
The Brampton Factor: Analysts fail on open source
Comment That lack of coverage compounds a problem with the presentation of open source software. Another problem for analysts treading the open source path is that smaller analyst firms find it very difficult to secure substantial advisory business from... [18 Aug 2008]
A New QoS Routing Framework for Solving MCP
White Paper One purpose of Quality-of-Service (QoS) routing is to develop polynomial-time heuristic algorithms to tackle the MCP (Multi-Constrained-Path) problem, which is NP-complete. The key issue of this framework is to transform the single source single... [18 Jul 2008]
A Mobile Differentiated Services QoS Model
White Paper Such IP-based networks must include Quality of Service (QoS) mechanisms to enable the usage of real-time applications, such as mobile telephony. To overcome this problem, this paper proposes the Mobile Differentiated Services QoS Model (MoDiQ), a... [18 Jul 2008]
Scalable Real-Time Gateway Assignment in Mobile Mesh Networks
White Paper WMNs are now being envisaged to provide citywide "last-mile" access for numerous mobile devices running media-rich applications with stringent Quality of Service (QoS) requirements. In particular, in a large WMN, the dynamic assignment of users to... [18 Jul 2008]
VFMAs, Virtual-Flow Multipath Algorithms for MPLS
White Paper A centralized and a distributed routing algorithms are proposed, which aggregate IP flows entering the MPLS domain, and optimally partition them among virtual flows that are forwarded on multiple paths according to their Quality of Service (QoS... [18 Jul 2008]
WebTools Gives Customers 24/7 Web Access to Critical Maintenance Records and Product Information
White Paper As Quality Machine's President, they thought document management might improve customer service for the company's two divisions, Quality Machine Works and Quality Machine Manufacturing. The core of the problem was the company's shared file servers... [18 Jul 2008]
Relation Between Willingness to Pay and Guaranteed Minimum Bandwidth in Multiple-Priority Service
White Paper This problem is addressed by making it easier for test subjects to visualize the quality of service available with a minimum.guaranteed bandwidth when evaluating willingness to pay. Various issues need to be addressed when providing differentiated... [11 Jul 2008]
Fault Restoration Techniques for MPLS With QoS Constraints
White Paper This paper investigates distributed fault restoration protocols for MultiProtocol Label Switching (MPLS) that automatically reroute label switched paths in the event of failures while maintaining Quality of Service (QoS) requirements. [11 Jul 2008]
Capacity Planning of Survivable MPLS Networks Supporting DiffServ
White Paper Capacity planning is needed to ensure there will be sufficient resource availability and quality of service under normal circumstances, and during network failures. The problem is formulated as an optimization problem, where the routes are jointly... [11 Jul 2008]
An Algorithm for Rerouting in Traffic Engineering of MPLS Based IP Networks
White Paper MultiProtocol Label Switching (MPLS) enables IP networks with Quality of Service to be traffic engineered well. This paper develops an algorithm for the traffic engineering problem associated with rerouting. [11 Jul 2008]
Design and Analysis of a Bandwidth Management Framework for ATM-Based Broadband ISDN
White Paper When designing and configuring an ATM-based B-ISDN, it remains difficult to guarantee the Quality of Service (QoS) for different service classes, while still allowing enough statistical sharing of bandwidth so that the network is efficiently... [11 Jul 2008]
Restoration Algorithms for Virtual Private Networks in the Hose Model
White Paper In order to ensure service quality and availability in a VPN, seamless recovery from failures is essential. This work considers the problem of fast recovery in the recently proposed VPN hose model. A Virtual Private Network (VPN) aims to emulate... [11 Jul 2008]
A Hierarchical Distributed Protocol for MPLS Path Creation
White Paper Network service provisioning involves the control of network resources through signaling, routing and management protocols that achieve Quality of Service and Traffic Engineering objectives. The protocol alleviates the scalability problem through... [10 Jul 2008]
On Egress Router Selection for Inter-Domain Traffic With Bandwidth Guarantees
White Paper As the Internet has grown in size and diversity of applications, the next generation is designed to accommodate flows that span over multiple domains with quality of service guarantees, and in particular bandwidth. [10 Jul 2008]
Resource Optimization to Provision a Virtual Private Network Using the Hose Model
White Paper The recently proposed hose model for VPN alleviates the scalability problem of the pipe model by reserving for its aggregate ingress and egress bandwidth instead of between every pair of VPN endpoints. [10 Jul 2008]
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