Multi Protocol Label Switching: Quality of Service, Traffic Engineering application, and Virtual Private Network application

This thesis discusses the QoS feature, Traffic Engineering (TE) application, and Virtual Private Network (VPN) application of the Multi Protocol Label Switching (MPLS) protocol. This thesis concentrates on comparing MPLS with other prominent technologies such as Internet Protocol (IP), Asynchronous Transfer Mode (ATM), and Frame Relay (FR). MPLS combines the flexibility of Internet Protocol (IP) with the connection oriented approach of Asynchronous Transfer Mode (ATM) or Frame Relay (FR). Section 1 lists several advantages MPLS brings over other technologies. Section 2 covers architecture and a brief description of the key components of MPLS. The information provided in Section 2 builds a background to compare MPLS with the other technologies in the rest of the sections. Since it is anticipate that MPLS will be a main core network technology, MPLS is required to work with two currently available QoS architectures: Integrated Service (IntServ) architecture and Differentiated Service (DiffServ) architecture. Even though the MPLS does not introduce a new QoS architecture or enhance the existing QoS architectures, it works seamlessly with both QoS architectures and provides proper QoS support to the customer. Section 3 provides the details of how MPLS supports various functions of the IntServ and DiffServ architectures. TE helps Internet Service Provider (ISP) optimize the use of available resources, minimize the operational costs, and maximize the revenues. MPLS provides efficient TE functions which prove to be superior to IP and ATM/FR. Section 4 discusses how MPLS supports the TE functionality and what makes MPLS superior to other competitive technologies. ATM and FR are still required as a backbone technology in some areas where converting the backbone to IP or MPLS does not make sense or customer demands simply require ATM or FR. In this case, it is important for MPLS to work with ATM and FR. Section 5 highlights the interoperability issues and solutions for MPLS while working in conjunction with ATM and FR. In section 6, various VPN tunnel types are discussed and compared with the MPLS VPN tunnel type. The MPLS VPN tunnel type is concluded as an optimal tunnel approach because it provides security, multiplexing, and the other important features that are reburied by the VPN customer and the ISP. Various MPLS layer 2 and layer 3 VPN solutions are also briefly discussed. In section 7 I conclude with the details of an actual implementation of a layer 3 MPLS VPN solution that works in conjunction with Border Gateway Protocol (BGP)

A Survey on Communication Networks for Electric System Automation

Published in Computer Networks 50 (2006) 877–897, an Elsevier journal. The definitive version of this publication is available from Science Direct. Digital Object Identifier:10.1016/j.comnet.2006.01.005In today’s competitive electric utility marketplace, reliable and real-time information become the key factor for reliable delivery of power to the end-users, profitability of the electric utility and customer satisfaction. The operational and commercial demands of electric utilities require a high-performance data communication network that supports both existing functionalities and future operational requirements. In this respect, since such a communication network constitutes the core of the electric system automation applications, the design of a cost-effective and reliable network architecture is crucial. In this paper, the opportunities and challenges of a hybrid network architecture are discussed for electric system automation. More specifically, Internet based Virtual Private Networks, power line communications, satellite communications and wireless communications (wireless sensor networks, WiMAX and wireless mesh networks) are described in detail. The motivation of this paper is to provide a better understanding of the hybrid network architecture that can provide heterogeneous electric system automation application requirements. In this regard, our aim is to present a structured framework for electric utilities who plan to utilize new communication technologies for automation and hence, to make the decision making process more effective and direct.This work was supported by NEETRAC under Project #04-157

ANALISIS PERFORMANSI QoS JARINGAN MPLS-VPN UNTUK APLIKASI VoIP

ABSTRAKSI: Quality of Service (QoS) merupakan hal penting yang harus diperhatikan dalam suatu sistem komunikasi. Banyak pertimbangan yang perlu diperhatikan dalam mendapat nilai kualitas yang baik pada jaringan. Pengadaan bandwith yang besar merupakan salah satu alternatif, namun hal ini menjadi tidak efektif karena trafik yang dilewatkan tidak secara terus menerus memiliki nilai trafik yang besar. Untuk meningkatkan kinerja jaringan yang dapat dilakukan antara lain differential service, resource reservation protocol (RSVP), multi protocol label switching (MPLS), dan penggunaan manajemen routing.Multi-Protocol Label Switching (MPLS) adalah suatu metode forwarding data melalui suatu jaringan dengan menggunakan informasi dalam label yang dilekatkan pada paket IP. Dengan jenis routing yang diterapkan pada jaringan MPLS, diharapkan mampu untuk memberikan peningkatan nilai QoS pada jaringan tersebut.. Sejak permintaan pertukaran informasi melalui internet terus meningkat dengan pesat, jaringan MPLS menawarkan fungsi traffic-engineering yang efisien, sehingga kebutuhan MPLS VPN juga meningkat dengan cepat. BGP (Border Gateway Protocol)/ MPLS VPN adalah semacam VPN IP-BASED yang memberikan kemudahan dalam memperluas lokasi pelanggan karena memiliki hubungan peer to-peer antara router PE ( Provider Edge) dan router CE (Customer Edge) pada pelanggan. BGP/MPLS VPN mempunyai keuntungan yang menawarkan fungsi trafficengineering ke jaringan pribadi.Dalam tugas akhir kali ini akan mengimplementasikan teknologi MPLS-VPN dalam jaringan yang kecil dan menggunakan GNS3 sebagai MPLS Router. Adapun hasil dari pengimplementasian ini diharapkan dapat memberikan gambaran tentang teknologi MPLS-VPN itu sendiri.Dari hasil testbed yang dilakukan di laboratorium didapatkan hasil bahwa penggunaan MPLS dapat menghasilkan QoS yang lebih baik. Dilihat dari hasil throughput, delay, packet loss,dan jitter yang didapat dari jaringan yang menggunakan teknologi MPLS-VPN mempunyai nilai yang lebih bagus dibandingkan dengan jaringan OSPF tanpa MPLS.Kata Kunci : MPLS, MPLS-VPN, OSPF, BGPABSTRACT: Quality Of Service (Qos) is represent the important thing which must be attention in a communications system. A lot of consideration which require being attention in getting good quality value at network. Wide Bandwidth is one of alternative, but this matter is not effective because traffic overcome not continually in big value traffic. For increasing network performance can be conducted by differential service, resource reservation protocol (RSVP), multi protocol of label switching (MPLS), and use of routing management.Multi-Protocol of Label Switching (MPLS) is a method of forwarding data through a network by using information in label attached at packet IP. With the type of routing applied at network MPLS, expected able to give increasing of value Qos at the network. Since request of information transfer through internet increasing, MPLS network offer the efficient function traffic-engineering, so that requirement of MPLS VPN also mounts swiftly. BGP ( Border Gateway Protocol)/ MPLS VPN is a kind of VPN IP-BASED giving amenity in extending location of customer because has link of peer to-peer of between router PE ( Provider Edge) and router CE ( Customer Edge) at customer. BGP / MPLS VPN have the advantage offering function of traffic-engineering to personal network.In this final task, MPLS-VPN will be implemented in small network and use GNS3 as MPLS Router. The result from this implementation is expected to be able to to describe how the MPLS-VPN technology works. From the implementation in laboratory, the result is MPLS-VPN can make QoS better. Seen from result throughput, delay, packet loss, and jitter which got from network using technology MPLS-VPN is better than network OSPF without MPLS.Keyword: MPLS, MPLS-VPN, OSPF, BG

Performance of MPLS-based Virtual Private Networks and Classic Virtual Private Networks Using Advanced Metrics

Multiprotocol Label Switching (MPLS) is effective in managing and utilizing available network bandwidth. It has advanced security features and a lower time delay. The existing literature has covered the performance of MPLS-based networks in relation to conventional Internet Protocol (IP) networks. But, too few literatures exist on the performance of MPLS-based Virtual Private Networks (VPN) in relation to traditional VPN networks. In this paper, a comparison is made between the effectiveness of the MPLS-VPN network and a classic VPN network using simulation studies done on OPNET®. The performance metrics used to carry out the comparison include; End to End Delay, Voice Packet Sent/Received and Label Switched Path’s Traffic. The simulation study was carried out with Voice over Internet Protocol (VoIP) as the test bed. The result of the study showed that MPLS-based VPN networks outperform classic VPN networks

SIMULASI MPLS-VPN MENGGUNAKAN TOPOLOGI HUB DAN SPOKE DENGAN OSPF

ABSTRAKSI: Quality of Service (QoS) merupakan hal penting yang harus diperhatikan dalam suatu sistem komunikasi. Banyak pertimbangan yang perlu diperhatikan dalam mendapat nilai kualitas yang baik pada jaringan. Untuk meningkatkan kinerja jaringan yang dapat dilakukan antara lain differential service, resource reservation protocol (RSVP), multi protocol label switching (MPLS), dan penggunaan manajemen routing. Multi-Protocol Label Switching (MPLS) VPN (Virtual Private Network) adalah suatu metode forwarding data melalui suatu jaringan dengan menggunakan informasi dalam label yang dilekatkan pada paket IP. Dengan jenis routing yang diterapkan pada jaringan MPLS VPN, diharapkan mampu untuk memberikan peningkatan nilai QoS pada jaringan tersebut.. Sejak permintaan pertukaran informasi melalui internet terus meningkat dengan pesat, jaringan MPLS menawarkan fungsi traffic-engineering yang efisien, sehingga kebutuhan MPLS VPN juga meningkat dengan cepat. OSPF (Open Sorthes Path First) MPLS VPN adalah semacam VPN IP-BASED yang memberikan kemudahan dalam memperluas lokasi pelanggan karena memiliki hubungan peer to-peer antara router PE ( Provider Edge) dan router CE (Customer Edge) pada pelanggan. Dalam tugas akhir kali ini akan mengimplementasikan teknologi MPLS-VPN dalam jaringan yang kecil pada topologi HUB dan SPOKE menggunakan GNS3 sebagai MPLS Router. Adapun hasil dari pengimplementasian ini diharapkan dapat memberikan gambaran tentang teknologi MPLS-VPN itu sendiri. Dari hasil testbed yang dilakukan di laboratorium didapatkan hasil bahwa penggunaan MPLS dapat menghasilkan QoS yang lebih baik. Dilihat dari hasil throughput, delay, packet loss,d an jitter yang didapat dari jaringan yang menggunakan teknologi MPLS-VPN mempunyai nilai yang lebih bagus dibandingkan dengan jaringan OSPF tanpa MPLS.Kata Kunci : MPLS-VPN,OSPF,HUB,SPOKEABSTRACT: Quality of Service (QoS) is an important thing that must be considered in a communication system. Many considerations that need to be considered in quality score well on the network. To improve the network performance that can be done include differential service, resource reservation protocol (RSVP), multi-protocol label switching (MPLS), and the use of routing management. Multi-Protocol Label Switching (MPLS) VPN (Virtual Private Network) is a method of forwarding data over a network by using the information in the labels attached to the IP packet. With the type of routing is applied to the MPLS VPN network, expected to be able to provide increased value of the QoS on the network .. Since the demand for exchange of information through the Internet continues to increase rapidly, MPLS network offering traffic-engineering functions are efficient, so the need for MPLS VPN is also rising rapidly. OSPF (Open Sorthes Path First) is a kind of VPN MPLS IP-Based VPN which provides ease in expanding the customer location because it has a peer relationship between the to-peer PE router (Provider Edge) routers and CE (Customer Edge) to customers. customers. In this final task will be to implement an MPLS-VPN technology in a small network of hub and spoke topology using GNS3 as MPLS Router. The result of this implementation is expected to provide a description of MPLS-VPN technology itself. From the results of testbed conducted in the laboratory obtained results that the use of MPLS could produce a better QoS. Viewed from the results of throughput, delay, packet loss, and jitter is derived from the network using MPLS-VPN technology has a better value than OSPF network without MPLS.Keyword: MPLS, MPLS-VPN, OSPF, HUB,SPOK

Performance evaluation of MPLS-enabled communications infrastructure for wide area monitoring systems

In order to obtain the transient power system measurement information, Wide Area Monitoring Systems (WAMS) should be able to collect Phasor Measurement Unit (PMU) data in a timely manner. Therefore along with the continual deployment of PMUs in Great Britain (GB) transmission system substations, a high performance communications infrastructure is becoming essential with regard to the establishment of reliable WAMS. This paper focuses mainly on evaluating the performance of the real-time WAMS communication infrastructure when Multi-Protocol Label Switching (MPLS) capability is added to a conventional IP network. Furthermore, PMU communications from geographically distributed substations to a Phasor Data Concentrator (PDC) are investigated over different transport protocols. Using OPNET Modeler, simulations are performed based on the existing WAMS infrastructure as installed on the GB transmission system. The simulation results are analyzed in detail in order to fully determine the different characteristics of communication delays between PMUs and PDC

Analysis Effectiveness VOIP Over MPLS-IPVPN For State Government Network

The performance of the Voice over IP (VoIP) protocol is of interest when planning for public access. The technologies, which work well for limited use often, fail to scale-up to the user requirements. High-quality VoIP services are required as for the Internet communications to be an alternative towards Public Switched Telephone Network (PSTN). The deployment of VoIP in the Internet network does not promise a good Quality of Service (QoS), since Internet is a kind of best-effort networks. The privacy consideration is also of importance when provisioning voice services on the Internet; particularly from the business use perspective. A full study, which comes up with a definitive set of recommendations would require considerable work over a substantial period of time, however some information on the performance may be obtained by reenacting the most commonly occurring conditions in the lab to ascertain the sensitivity of the VoIP to its key QoS parameters. The aim of this project is to analyze effective VOIP technique and analyze the performance of VoIP communications by observing the QoS parameters variation with respect to the some of the pertinent communication aspects on State Government Network. The aspect chosen in this regard comprise the call signaling protocols, the networking environments, and VPN protocols. Some similar studies have also been used as a comparative measurement towards the results obtained from this research

SIMULASI DAN ANALISIS PERFORMANSI QoS PADA APLIKASI LIVE VIDEO STREAMING MULTICAST BERBASIS MPLS-VPN

ABSTRAKSI: Multi-Protocol Label Switching (MPLS) adalah suatu metode forwarding data melalui suatu jaringan dengan menggunakan informasi dalam label yang dilekatkan pada paket IP. Dengan jenis routing yang diterapkan pada jaringan MPLS, diharapkan mampu memberikan peningkatan nilai QoS pada jaringan tersebut karena jaringan MPLS menawarkan fungsi traffic-engineering yang efisien. Pada jaringan MPLS ini akan diujikan pada aplikasi live video streaming multicast.Multicast merupakan suatu teknik pendistribusian paket data dari satu ke banyak penerima, dimana dalam pendistribusian paket data video lebih efektif dengan banyak pengguna.Pada tugas akhir ini akan dilakukan implementasi aplikasi live video streaming multicast pada jaringan MPLS VPN dan menggunakan GNS3 sebagai emulator MPLS Router. Adapun hasil dari pengimplementasian ini diharapkan dapat memberikan gambaran tentang teknologi MPLS-VPN pada aplikasi live video streaming itu sendiri, baik berupa hasil QoS, performa PC untuk melakukan emulasi router pada topologi yang digunakan pada penelitian ini.Pada pengukuran throughput yang didapat dari hasil pengukuran menunjukkan bahwa packet lost sangat mempengaruhi besar throughput, semakin besar packet lost maka throughput semakin menurun. Dari pengukuran di dapat nilai throughput dengan bit rate video 512 kbps pada MPLS VPN mempunyai nilai rata-rata 0.44925 Mbit/s dengan rata-rata packet lost sebesar 0.3979%, sedangkan untuk OSPF didaptkan throughput sebesar 0.40275 Mbit/s dengan packet lost sebesar 0.471083 %. Pada pengukuran dengan bit rate video 1024 kbps besar throughput rata-rata di MPLS VPN adalah 0.829 Mbit/s dan packet loss 1.92383 % sedangkan pada OSPF sebesar 0.814445 Mbit/s dan packet loss sebesar 2.070166%.Kata Kunci : MPLS, MPLS-VPN, QoS, dan MULTICASTABSTRACT: Multi-Protocol Label Switching (MPLS) is a method of forwarding data over a network using the information in the label attached to the IP packet. With this type of routing is applied to the MPLS network, expected to provide increased value to the network QoS for MPLS traffic-engineering functions offer efficient. In the MPLS network will be tested on live video streaming application is a technique multicast. Multicast distribution of data packets from one to many recipients, where the distribution of video data packets more effectively with manyusers. This research will be done studies on live video streaming applications on the multicast MPLS networks.At the end of this task will be the implementation of multicast live video streaming applications on MPLS VPN use GNS3 as MPLS Router emulator. As a result of the implementation is expected to provide an overview of MPLS-VPN technology on live video streaming application itself, either in the form of QoS, performance PCs for emulation routers on topology that is used in this study.On throughput measurements obtained from the measurement results show that the influence of a lost packet throughput, the larger the lost packet throughput decreases. From measurements in the can the value of throughput with bit rate 512 kbps video on MPLS VPN has an average value of 0.44925 Mbit / s with an average of 0.3979% packet lost, while for OSPF be obtained throughput of 0.40275 Mbit / s with a packet lost at 0.471083% . In measurements with video bit rate of 1024 kbps average throughput in MPLS VPN is a 0.829 Mbit / s and 1.92383% packet loss, while the OSPF of 0.814445 Mbit / s and packet loss of 2.070166%.Keyword: MPLS, MPLS-VPN, QoS, and MULTICAS

Enterprise network convergence: path to cost optimization

During the past two decades, telecommunications has evolved a great deal. In the eighties, people were using television, radio and telephone as their communication systems. Eventually, the introduction of the Internet and the WWW immensely transformed the telecommunications industry. This internet revolution brought about a huge change in the way businesses communicated and operated. Enterprise networks now had an increasing demand for more bandwidth as they started to embrace newer technologies. The requirements of the enterprise networks grew as the applications and services that were used in the network expanded. This stipulation for fast and high performance communication systems has now led to the emergence of converged network solutions. Enterprises across the globe are investigating new ways to implement voice, video, and data over a single network for various reasons – to optimize network costs, to restructure their communication system, to extend next generation networking abilities, or to bridge the gap between their corporate network and the existing technological progress. To date, organizations had multiple network services to support a range of communication needs. Investing in this type of multiple communication infrastructures limits the networks ability to provide resourceful bandwidth optimization services throughout the system. Thus, as the requirements for the corporate networks to handle dynamic traffic grow day by day, the need for a more effective and efficient network arises. A converged network is the solution for enterprises aspiring to employ advanced applications and innovative services. This thesis will emphasize the importance of converging network infrastructure and prove that it leads to cost savings. It discusses the characteristics, architecture, and relevant protocols of the voice, data and video traffic over both traditional infrastructure and converged architecture. While IP-based networks present excellent quality for non real-time data networking, the network by itself is not capable of providing reliable, quality and secure services for real-time traffic. In order for IP networks to perform reliable and timely transmission of real-time data, additional mechanisms to reduce delay, jitter and packet loss are required. Therefore, this thesis will also discuss the important mechanisms for running real-time traffic like voice and video over an IP network. Lastly, it will also provide an example of an enterprise network specifications (voice, video and data), and present an in depth cost analysis of a typical network vs. a converged network to prove that converged infrastructures provide significant savings