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The technology of MultiProtocol Label Switching (MPLS) represents one of the most advanced ways how to optimize the packet-forwarding process in routers. In addition, MPLS also offers new possibilities of resource sharing, important from the point of view of service differentiation and quality of service (QoS) support. The aim of the paper is to present the results of our investigation into the efficiency...
In the MPLS-based mobile IPv6 network, when mobile node performs handover, it needs to rebuild label switching path, which impacts the handover delay and causes packets loss. Reused parts of the path overcome the above reasons, which propose a cross-router (CR) algorithm. It modifies the label information base (LIB), that is, increases two fields: the mobile node address and the time counter. When...
K highest label path algorithm (KHLP) is presented for MPLS-TE. The algorithm first uses generalization of highest-label pre-flow-push algorithm to calculate K-shortest paths, then chooses the LSP in terms of the link criticality and the residual bandwidth, combines K value to give different links weight, further combines offline with online routing to reduce the computational complexity, simultaneously...
With the development of network technology, QoS routing algorithm based on MPLS traffic engineering becomes the focus of the information industry. An improved algorithm is proposed based on the known algorithms. For optional paths of each ingress-egress pair, the algorithm uses a learning mechanism, combines offline and online routing, and chooses the LSP in terms of the average expectation load and...
As most of the carriers have extended their circuit transport networks with packet transport capabilities due to the inefficient transport network architecture, the controlling manner developed silently. Multiple service transport platform is the newly proposed packet based transport technology and the standardization process is very fast. GMPLS is considered to be the future controlling technologies...
Monitoring the end-to-end Quality-of-Service (QoS) is an important work for service providers' Operation Support System (OSS), because it is the fundamental requirement for QoS provisioning. However, it is in fact a challenging work, and there are few efficient approaches to address it. In this paper, for multi-protocol label switching (MPLS) virtual private networks (VPNs), we propose a queuing model...
This article proposes a new model to ensure for each application a better quality of service (QoS). The proposed model is called periodic multi-step routing model or PEMS. It is built by integration of traffic engineering based on MPLS and differentiation of traffic depending on the class as proposed by DiffServ. Indeed, many models for optimizing QoS routing use a single specific metric because mixing...
To find a way to access a path to provide quality of service (QoS) requirements, we can use the constraint-based routing technique. Until now algorithms uses an additive constraint along with a bandwidth constraint (e.g. delay or hop count) have been used. It was for the requirement of QoS. Selecting the path is used not only for the guaranty QoS, but also for the bandwidth and delay constraints....
Initial entry during deployment requires tactical networks supporting voice, video, and data requirements to be established quickly given little existing telecommunication infrastructure. Wireless mesh networks using contention-based medium access control (MAC) appear to be an easy off-the-shelf solution, but their performance is lacking for support of such diverse high-bandwidth low-latency requirements...
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