Interoperability and Reliability of Multiplatform MPLS VPN: Comparison of Traffic Engineering with RSVP-TE Protocol and LDP Protocol

One of the alternatives to overcome network scalability problem and maintaining reliability is using MPLS VPN network. In reallity, the current network is already using a multiplatform of several different hardware vendors, i.e., Cisco and Juniper platforms. This paper discusses the comparison of the simulation results to see interoperability of multiplatform MPLS VPN andreliability through traffic engineering using RSVP-TE and LDP protocols. Both the RSVP and LDP protocols are tested on a stable network and in a recovery mode,as well as non-load conditions and with additional traffic load. The recovery mode is the condition after the failover due to termination of one of the links in the network. The no-load condition means that the network is not filled with additional traffic. There is only traffic from the measurement activity itself. While network conditions with an additional load are conditions where there is an additional UDP packet traffic load of 4.5 Mbps in addition to the measurement load itself. On a stable network and without additional traffic load, the average delay on LDP protocol is 59.41 ms, 2.06 ms jitter, 0.08% packetloss, and 8.99 Mbps throughput. Meanwhile, on RSVP protocol, the average delay is 52.40 ms, 2.39 ms jitter, 12.18% packet loss, and 7.80 Mbps throughput. When failover occurs and on recovery mode, LDP protocol is48% of packet loss per 100 sent packets while on RSVP packet loss percentage is 35.5% per 100 sent packets. Both protocols have interoperability on the third layer of multiplatform MPLS VPN, but on heavy loaded traffic condition, RSVP protocol has better reliability than the LDP protocol

Multi-Objective Routing Optimization for Multiple Level Priority and Preemption in Multi-Tiered Networks

This thesis explores techniques for improving the Quality of Service (QoS) driven routing of IP traffic in a Network Centric Military Communications System within an HC3 (High Capacity Communications Capability) tiered topology. In this specialized network various routing algorithms, including traditional, QoS-constrained search-based, and heuristic approaches, were evaluated. An automatic system for the probabilistic generation of appropriate networks and traffic was created for Monte Carlo simulation of the systems and testing of the various routing algorithms. A new algorithm we propose, based upon a hiercharical decomposition of routes about the minimum distance routes, is described and tested. These results provide both insight into this problem and demonstrate the possibility of highly optimized solutions without exhaustive search

A Path Distribution Approach For Reliable Data Transmission In MPLS Ring Network

In a high speed network, any disturbance over the network cause heavy data loss. When data is transferring a topology like bus or ring. The chance of data loss increases more in same ratio. In this present the discussion is being performed on high speed MPLS Ring network. As some fault occurs over the network it will return heavy data loss. In this work we are defining some new low cost hardware called save points. Save points are placed at equal distance between two nodes. The network will maintain two paths for reliable data transmission. One path is the actual data path and other is backup path. As the signal disruption detected, it will inform the nearest save point and the save point will direct the communication to the backup path

MPLS layer 3 VPN

Trabalho final de mestrado para obtenção do grau de Mestre em Engenharia de Electrónica e TelecomunicaçõesMultiprotocol Label Switching (MPLS) is the principal technology used in Service Provider. Networks as this mechanism forwarding packet quickly. MPLS is a new way to increase the speed, capability and service supplying abilities for optimization of transmission resources. Service Provider networks use this technology to connect different remote sites. MPLS technology provides lower network delay, effective forwarding mechanism, ascendable and predictable performance of the services which makes it more appropriate for carry out real-time applications such as Voice and video. MPLS can be used to transport any type of data whether it is layer 2 data such as frame relay, Ethernet, ATM data etc. or layer 3 data such as IPV4, IPV6.Multiprotocol Label Switching (MPLS) é a principal tecnologia usada no Service Provider. Redes como este mecanismo fazem o encaminhamento de pacotes de dados rapidamente. MPLS é uma nova maneira de aumentar a velocidade, a capacidades de fornecimento, a capacidade de serviço para otimização de recursos de transmissão. As redes Service Provider usam essa tecnologia para ligar diferentes sites remotos. A tecnologia MPLS oferece menor atraso de rede, mecanismo de encaminhamento eficaz, desempenho e serviços previsíveis o que o tornam mais apropriado para executar aplicativos em tempo real, como voz e vídeo. O MPLS pode ser usado para transportar qualquer tipo de dados, seja dados de camada 2, como frame relay, Ethernet, dados ATM, etc., ou dados da camada 3, como IPV4, IPV6.N/

An Efficient Routing Method for Protection Data Flow in the MPLS Network

تقدم هذه الورقة طريقة فعالة لإعادة توجيه حركة المرور في شبكة الMPLS  وذلك عندما يحدث خطأ في المسار الناقل. و قد تم تصميم هذه الطريقة لمعالجة كل من الأخطاء الفردية والمتعددة استنادا إلى تقنيات الحماية وإعادة التوجيه.  حيث تؤدي الطريقة المقترحة إلى خسارة أقل للحزم (decrease packet loss)، ولها نسبة توصيل أفضل للخدمة (PDR)، وتحسين في الإنتاجية (Throughput)، وتحسين في وصول حزم البيانات بشكل منتظم (packet order). تم محاكاة الطريقة المقترحة باستخدام محاكي الشبكة (NS2) الإصدار 2.34 وقد أظهرت نتائج المحاكاة أن الطريقة المقترحة  تحسن  بشكل كبير من أداء الشبكة بالمقارنة مع الأساليب و الطرق الموجودة في الأبحاث العلمية المشابهة. الكلمات المفتاحية: شبكة الـ MPLS, عمل الـ Link, حماية البديل, إعادة التوجيه, محاكاه الشبكة.This paper presents an efficient method for rerouting traffic in the Multiprotocol Label Switching (MPLS) network, when a fault occurs in the working link. The method has been designed to handle both single and multiple faults based on the protection switching and rerouting techniques. The proposed method leads to less packets loss, has better Packet Delivery Ratio (PDR), good throughput and eliminates packet disorder. The proposed method has been simulated using the Network Simulator (NS2) version 2.34 and the simulation results have shown that the proposed method significantly improves the network performance in comparison to similar existing methods. Keywords: MPLS network, Working link, Protection switching, Rerouting, Network simulator

Multi-Link Failure Effects on MPLS Resilient Fast-Reroute Network Architectures

© 2021 IEEE.MPLS has been in the forefront of high-speed Wide Area Networks (WANs), for almost two decades [1, 12]. The performance advantages in implementing Multi-Protocol Label Switching (MPLS) are mainly its superior speed based on fast label switching and its capability to perform Fast Reroute rapidly when failure(s) occur – in theory under 50 ms [16, 17], which makes MPLS also interesting for real-time applications. We investigate the aforementioned advantages of MPLS by creating two real testbeds using actual routers that commercial Internet Service Providers (ISPs) use, one with a ring and one with a partial mesh architecture. In those two testbeds we compare the performance of MPLS channels versus normal routing, both using the Open Shortest Path First (OSPF) routing protocol. The speed of the Fast Reroute mechanism for MPLS when failures are occurring is investigated. Firstly, baseline experiments are performed consisting of MPLS versus normal routing. Results are evaluated and compared using both single and dual failure scenarios within the two architectures. Our results confirm recovery times within 50 ms

Dynamic bandwidth allocation in multi-class IP networks using utility functions.

PhDAbstact not availableFujitsu Telecommunications Europe Lt

Optimizing The MPLS Support For Real Time IPv6-Flows Using MPLS-PHS Approach.

The huge coverage space of IPv6 addresses and providing guaranteed support for the ever increasing customer demand, results in the dealing with bigger packet header-size compared to the payload-size especially in some real time video and audio applications, consequently more bandwidth is wasting