The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Multiprotocol Label Switching (MPLS) is an Internet Engineering Task Force (IETF) specified framework that provides for the efficient designation, routing, forwarding and switching of traffic flows through the network. MPLS is a versatile solution to address the problems faced by present-day networks like speed, scalability, quality-of-service (QoS) management, and traffic engineering. MPLS carries...
Traffic Engineering (TE) broadly relates to optimization of the performance of a network. The Overlay approach has been widely used by many service providers for Traffic Engineering in large Internet backbones. In this approach logical connections are set up between edge nodes to form a full mesh virtual network on top of the physical topology. Instead of overlaying IP routing over the logical virtual...
The Internet backbone has been enjoying the great many advantages of multi-protocol label switching (MPLS) for quite sometimes, as well as in wireless applications. The employment of MPLS in mobile services and applications was not noticeable until the beginning of the year 2000. However researches began extensive efforts to extend the MPLS capability to the wireless access networks. This is particularly...
In this paper we consider dynamic routing of restorable quality of service (QoS) connections in multi-protocol label switched (MPLS) networks under a single link failure model. To route a restorable QoS connection, two link disjoint label switched paths from the ingress to the egress node need to be computed such that both paths comply with the QoS constraints. When looking at QoS constraints like...
The capability of multiprotocol label switching (MPLS) of explicit routing as well as of transferring the traffic flows on several, possible equal cost, paths allows load balancing scheme. Exploiting this capability of MPLS, a revenue aware load balancing mechanism is proposed in this paper. The main goal of this proposal is to maximize total network revenue so that quality of service (QoS) requirements...
The present paper presents a framework for managing quality of service in future WDM core optical networks. These networks solve the bandwidth problem but transmit complexity to the control and management layers. Part of this complexity is handled by the generalized multiprotocol label switching (GMPLS) control plane. The latter, however, cannot tackle the new challenges posed by emerging applications...
Looking at the progress of mobile-IP in the recent years, there's a sense that IP (for QoS support, IPv6 more specifically) is going to be involved more and more in wireless applications. The current IETF standard for mobility is the mobile IP (RFC 3344 for IPv4 and RFC 3775 for IPv6) both work by changing the IP address when changing the subnet. Both mobile IPv4 and IPv6 suffer from longer handover...
This paper we discuss the architecture of a QoS based mobile ad-hoc network MANET using RSVP over multiprotocol label switch (MPLS). Classical IP routing provides only a "best effort" service, which makes routing simple, however no quality of service (QoS) will be provided to applications such as streaming voice and video. For the purpose of scalability, where many connections are to be...
As quality-guaranteed services, such as voice and streaming services, are required over Internet, traffic engineering based on an MPLS technology is being introduced. In MPLS traffic engineering, information related with service's quality requirements is forwarded through routers on a quality-guaranteed path by an MPLS signaling protocol. Routers on the quality-guaranteed path forward traffic for...
Multiprotocol label switching (MPLS) has been deployed by some major carriers in recent years, as the Internet has matured to be the most dominant network and many current Internet applications require better quality of service (QoS), such as better reliability, delay, jitter, and bandwidth. The main task for solving QoS problems in the Internet protocol (IP) is to control congestion and bursts of...
Multiprotocol label switching (MPLS) is a method of switching IP packets through a network by applying simple labels to packets. It provides the privacy and quality of service (QoS) advantages of connection-oriented services. Other benefits of MPLS include traffic engineering capabilities needed for the efficient use of network resources. Traffic engineering shifts the traffic load from overutilized...
In operational IP networks, it has been difficult to incorporate effective traffic engineering due to the limited capabilities of the IP technology. In this article we present two MPLS traffic engineering mechanism: congestion control model and path rerouting. FATE (fast acting traffic engineering) method is realized in the first model, which solves the problem of dynamically managing traffic flows...
Multipath routing employs multiple parallel paths between the source and destination for a connection request to improve resource utilization of a network. In this paper, we provide an integrated design of multipath routing in MPLS networks. In addition, we take into account the quality of service (QoS) in carrying delay-sensitive traffic and failure survivability in the design. Path protection or...
Fast rerouting mechanisms are being studied in order to provide fault tolerance for LSP in an MPLS network in case of node or link failure. For QoS provision, protected LSP are handled apart from non-protected LSP. Rerouting mechanisms when applied on protected LSP must take into account QoS requirements. This paper presents a mechanism that is able to handle multiple failures along an LSP while using...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.