Multiprotocol Label Switching Virtual Private Network Research Articles

Performance Evaluation of Routing Protocols for Video Conference over MPLS VPN Network

Nowadays video conferencing is a highly demanding facility in order to its real time characteristics, but faster communication is the prior requirement of this technology. Multi Protocol Label Switching (MPLS) IP Virtual Private Network (VPN) addresses this problem and it is able to make a communication faster than others techniques. However, this paper studies the performance comparison of video traffic between two routing protocols namely the Enhanced Interior Gateway Protocol (EIGRP) and Open Shortest Path First (OSPF). The combination of traditional routing and MPLS improve the forwarding mechanism, scalability and overall network performance. We will use GNS3 and OPNET Modeler 14.5 to simulate many different scenarios and metrics such as delay, jitter and mean opinion score (MOS) value are measured. The simulation result will show that OSPF and BGP-MPLS VPN offers best performance for video conferencing application

ANALISA PERBANDINGAN WAKTU DAN KECEPATAN TRANSFER PADA MULTI PROTOCOL LABEL SWITCHING (MPLS) DENGAN VIRTUAL PRIVATE NETWORK (VPN) UNTUK PERPINDAHAN DOKUMEN PADA JARINGAN KOMPUTER

MPLS (Multi Protocol Label Switching) technology has been developed and mostly used by the service provider on their main network. Data packets which forwarded from one router to another router can also use VPN (Virtual Private Network) technology. VPNs were developed in the field of computer networks now have many variants, such as MPLS VPN and VPN which connects between computers or a LAN through a public network is the internet. The purpose of this final task is build a lab scale VPN network with MPLS technology use Mikrotik router RB 750GL and create a VPN connection to the STTA campus network passing the public internet. Then do a comparative analysis of the time required and the speed of transfer on both the network. The results of a comparative analysis between MPLS and VPN with the same file capacity, it appears that the MPLS network is faster in time speed and transfer speed

IP Backbone Security: MPLS VPN Technology

The Multiprotocol Label Switching (MPLS) technology is currently the most deployed technology by service providers over backbone networks. The highly useful MPLS application nowadays is the MPLS Virtual Private Network (VPN). Due to the enterprises and organizations demand of allowing the remote sites and users to connect to enterprise network, MPLS VPNs have become more attractive. The service providers are using MPLS VPN technology to provide the end users a secure channel across the public internet, with flexibility and scalability. MPLS VPNs have the functionality to operate over both MPLS networks as well as existing IP networks. Variety of research has been conducted in this area and many researchers have proposed different models and solutions to implement MPLS VPN technology more effectively and efficiently. This paper presents the detail analysis of the existing and future techniques and models which are used to implement, optimize, secure MPLS VPN technology.

Research of Network Testing Based on MPLS L2VPN

MPLS (Multi-Protocol Label Switching) VPN is based on MPLS technology and construct virtual private network (VPN) on backbone network, to provide users with safe, reliable, high-quality business technology VPN. MPLS L2VPN (Layer 2 VPN) is one type of solutions of MPLS VPN. The MPLS L2VPN technology, after years of researching and practicing, is becoming mature, and many RFCs and related drafts are published to standardize it. However, there is not much research of network test method on the MPLS L2VPN technology, this paper analyzes the various MPLS L2VPN solutions and make a reach on test method based on two types solutions: Martini and Kompella.

Campus Network Virtualization using Multiprotocol Label Switching Virtual Private Networks (MPLS-VPNs)

Campus Networks are ever evolving. With each evolution comes a need for increased availability, scalability, flexibility and security of the network. This work presents how the aforementioned needs can be met via network virtualization. It also goes further to show how network virtualization can be achieved using Multiprotocol Label Switching-Virtual Private Networks (MPLS-VPNS). Finally, the paper proposed how MPLS-VPNs (a technology generally assumed to be limited to network service providers) can be implemented in campus networks. This proposed solution as evident from the outcome of this research leads to better network design and improved network efficiency in terms of bandwidth management and network delay.

Comparative Analysis of QoS VPN Provisioning Algorithm on Traditional IP based VPN and MPLS VPN using NS-2

A virtual private network (VPN) is a private network that uses a public network such as the internet or Multiprotocol Label Switching (MPLS) network to connect remote sites of same or different organizations/networks together. VPN provides similar level of privacy, security, quality of service and manageability that privately owned network provides. This paper presents the comparative analysis of VPN provisioning algorithm, Modified Tree Routing Algorithm (MTRA), on traditional IP based VPN and MPLS technology based VPNs. MPLS based method of packet forwarding has many advantages over IP layer forwarding. Packets with the same destination arriving on different ports of the router can be assigned to different Forwarding Equivalence Classes (FEC). Conventional forwarding, on the other hand, can only consider information that travels with packet in the packet header. The simulator used to implement the algorithm is, Network Simulator version 2.30 (ns-2). NS-2 gives the packet level analysis of the network with animation. General Terms Networking

Importance of Multicast Virtual Private Networks based on RFC 2547

The Multi-protocol Label Switching is one of the proposed technologies useful for traffic engineering in the specific aspects of measurement and control of Internet traffic and virtual Private network (VPN) is a concept that significant on the future of business communication, it replace existing private network with flexible architecture that is easily manage and at a same time it provide enhanced service. The Multi-protocol Label Switching (MPLS) virtual Private network (VPN) is a popular IP VPN service based on RFC 2547 and its successor documents (dubbed 2547bis).The main importance of MPLS is that it integrates the key features of both Layer 2 and Layer 3. Most importantly, it is not limited to any Layer 2 or Layer 3 protocol. In particular, MPLS has several applications and can be extended across multiple products segments (such as an MPLS router, an IP services switch/router, a multi service switch, an Optical Ethernet switch, as well as optical switches). Many service providers offer MPLS VPN to their large enterprise customers, who need only attach their local, customer edge (CE) site routers to the nearest service provider edge (PE) router and exchange routing information. MPLS reduces the complexity of forwarding using encapsulated fixedlength labels for making high speed forwarding decisions. The service provider distributes customer IP routing information to other customer sites and uses its backbone to forward customer IP packets from one customer site to another. This is done by very new concept which is called multicast virtual private networks (mVPNs).

Analysis of security threats to MPLS virtual private networks

Multiprotocol label switching (MPLS) based virtual private networking is one of the fastest-growing network technologies. It provides corporate and government customers with flexible, inexpensive “autobahns” that seamlessly connect multiple, geographically-dispersed sites, enabling voice, video, data and other high-bandwidth applications. The technology is also attractive to service providers because it enables them to flexibly provision resources for a variety of classes of service and applications with excellent quality of service at low cost. This paper analyzes the principal security threats to MPLS virtual private networks (VPNs). Because BGP is crucial to implementing MPLS VPNs, special attention is directed at the protocol and its multiprotocol extensions. This paper describes three classes of exploits on MPLS VPNs: route modification, traffic injection and denial-of-service attacks. It also discusses mitigation strategies that can be implemented by service providers and MPLS VPN customers.

Scalable VPN routing via relaying

Enterprise customers are increasingly adopting MPLS (Multiprotocol Label Switching) VPN (Virtual Private Network) service that offers direct any-to-any reachability among the customer sites via a provider network. Unfortunately this direct reachability model makes the service provider's routing tables grow very large as the number of VPNs and the number of routes per customer increase. As a result, router memory in the provider's network has become a key bottleneck in provisioning new customers. This paper proposes Relaying, a scalable VPN routing architecture that the provider can implement simply by modifying the configuration of routers in the provider network, without requiring changes to the router hardware and software. Relaying substantially reduces the memory footprint of VPNs by choosing a small number of hub routers in each VPN that maintain full reachability information, and by allowing non-hub routers to reach other routers through a hub. Deploying Relaying in practice, however, poses a challenging optimization problem that involves minimizing router memory usage by having as few hubs as possible, while limiting the additional latency due to indirect delivery via a hub. We first investigate the fundamental tension between the two objectives and then develop algorithms to solve the optimization problem by leveraging some unique properties of VPNs, such as sparsity of traffic matrices and spatial locality of customer sites. Extensive evaluations using real traffic matrices, routing configurations, and VPN topologies demonstrate that Relaying is very promising and can reduce routing-table usage by up to 90%, while increasing the additional distances traversed by traffic by only a few hundred miles, and the backbone bandwidth usage by less than 10%.

Control, data acquisition and remote participation for steady-state operation in LHD

Control, data acquisition, plasma monitoring and remote participation for steady state operation in the large helical device (LHD) are reviewed. By controlling the impedance matching of ICH, the plasma position and the electron density, high temperature plasma is confined for 1905s. The plasma parameters are monitored in real time. Data are continuously sampled by the YOKOGAWA WE7000 system and by the NATIONAL INSTRUMENTS CompactPCI system. Those data are managed by the object-oriented database system based on ObjectStore in distributed servers with mass storage. By using the multi protocol label switching-virtual private network (MPLS-VPN) technology, the local area network of LHD is expanded to the Japanese fusion community. This provides the remote participants with the same environment of the LHD control room.

Multiprotocol label switching and IP. Part I. MPLS VPNs over IP tunnels

Multiprotocol label switching (MPLS) is a tunneling technology used in many service provider networks. The most popular MPLS-enabled application in use today is the MPLS virtual private network, MPLS VPNs were developed to operate over MPLS networks, but they can also run over native IP networks. This offers providers flexibility in network-deployment choices, improved routing system scalability, and greater reach to customers. The key element is the ability to encapsulate MPLS packets in IP tunnels.

Quality of service in BT’s MPLS-VPN platform

The multi-protocol label switching virtual private network (MPLS-VPN) is now firmly established as the preferred choice for providing private IP networking services for a very wide range of customer type, from small regional organisations, to large multinational corporations. Quality of service (QoS) is a natural complement to MPLS-VPN technology, enabling multiservice operation, and supporting the increasing drive toward application convergence. BT has recently launched a second-generation QoS scheme for its MPLS-VPN platform that gives unparalleled capability. This paper gives a detailed overview of the principles and mechanisms of differentiated-services QoS, and describes how this is applied in the BT design.

Supporting MPLS VPN multicast

MPLS(Multi-Protocol Label Switching) VPN(Virtual Private Network) traffic has been deployed widely, but currently only supports unicast. This paper briefly introduces several available MPLS VPN multicast approaches, and then analyzes their disadvantages. A novel mechanism that uses two-layer label stack to support MPLS VPN explicit multicast is proposed and the process is discussed in detail. The scalability and performance of the proposed mechanism are studied analytically. The result shows that our solution has great advantage over the currently available scheme in terms of saving core network bandwidth and improving the scalability.

Overview on MPLS Virtual Private Networks

The basic idea, features, and necessity of multiprotocol label switching (MPLS) are given in this paper, with a special focus on virtual private networks (VPN) as one of the most important features that MPLS as technology enables and supports. In this context, we first describe the general VPN models, the overlay and the peer model, and than analyze different models, such as the BGP/MPLS virtual private networks and the layer-2 MPLS virtual private networks. All over the paper, the benefits provided by using MPLS for different VPN models are emphasized, with particular attention to improved scalability, management, and quality of service (QoS).