scholarly journals PERFORMANCE ANALYSIS OF MPLS AND TRADITIONAL IP IN NODE SCALABLE NETWORKS

2019 ◽  
Author(s):  
Muhammad Arshad ◽  
◽  
Lala Rukh ◽  
Hussain Shah ◽  
Bilal Khan
Keyword(s):  
High Speed ◽  
Network Performance ◽  
Multiprotocol Label Switching ◽  
Network Resources ◽  
Ip Address ◽  
Effective Utilization ◽  
Network Utilization ◽  
Scalable Networks ◽  
Ip Network ◽  
Minimum Delay

Multiprotocol label switching is the latest and developing technology in the world of the internet. It speeds up the network by using the technique of label instead of an IP address. It provides reliable transmission of data with high speed and low delay. For efficient use of network utilization MPLS has a key feature of QoS. Due to the effective utilization of network resources, minimum delay and predictable performance MPLS technology make it more appropriate for implementing multimedia type applications. In this research, the performance of MPLS technology is compared with the traditional IP network for multimedia traffic in node scalable networks. For simulating and comparing the performance of both technologies OPNET modular 14.5 is used. This comparison is done on the basis of network performance parameters such as packet loss/ traffic drop, end-to-end delay, and throughput. Finally, the results have been evaluated which show that MPLS technology provides better performance as compared to IP in node scalable environment.

scholarly journals Efficient Data Forwarding Mechanism in Backbone Networks by Employing MPLS Technology

2016 ◽  
Vol 15 (13) ◽  
pp. 7347-7354
Author(s):  
Walid Iltaf
Keyword(s):  
Multiprotocol Label Switching ◽  
Performance Difference ◽  
Data Link ◽  
Ip Address ◽  
Backbone Networks ◽  
Data Link Layer ◽  
End To End Delay ◽  
Ip Network ◽  
Efficient Data ◽  
Routing Tables

Multiprotocol Label Switching (MPLS) is a relatively new WAN technology that is attracting the networking professionals around the globe. Many ISPs have already deployed it in their network. Yet, some other ISPs are in the pipeline to deploy it. Nevertheless, it has caught the attention of professionals soon after it was developed. Instead of the IP address or MAC address, MPLS works on small labels. These labels are inserted between Data Link layer and Network layer of the OSI model. Forwarding decisions are based on these labels; instead of looking at complex routing tables. The MPLS network is configured, and tested under different conditions. A comparison is drawn between the IP and MPLS network. The obtained results show that MPLS has a lower end to end delay and less CPU utilization. Furthermore, MPLS has lesser processing delay as compared to the IP network. The performance difference is basically due to the intelligent forwarding mechanism of MPLS technology. It is also important to further investigate this topic in terms of security considerations. The labels values are not encrypted during transmission, and there is no authorization mechanism defined. It will be highly beneficial to have more sophisticated suite of security tools to encounter threats and vulnerabilities.

scholarly journals Artificial Intelligence Control Logic in Next-Generation Programmable Networks

2021 ◽  
Vol 11 (19) ◽  
pp. 9163
Author(s):  
Mateusz Żotkiewicz ◽  
Wiktor Szałyga ◽  
Jaroslaw Domaszewicz ◽  
Andrzej Bąk ◽  
Zbigniew Kopertowski ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Bandwidth Allocation ◽  
Network Performance ◽  
Next Generation ◽  
Control Logic ◽  
Network Resources ◽  
Network Resource ◽  
Programmable Networks ◽  
Network Utilization ◽  
Effective Network

The new generation of programmable networks allow mechanisms to be deployed for the efficient control of dynamic bandwidth allocation and ensure Quality of Service (QoS) in terms of Key Performance Indicators (KPIs) for delay or loss sensitive Internet of Things (IoT) services. To achieve flexible, dynamic and automated network resource management in Software-Defined Networking (SDN), Artificial Intelligence (AI) algorithms can provide an effective solution. In the paper, we propose the solution for network resources allocation, where the AI algorithm is responsible for controlling intent-based routing in SDN. The paper focuses on the problem of optimal switching of intents between two designated paths using the Deep-Q-Learning approach based on an artificial neural network. The proposed algorithm is the main novelty of this paper. The Developed Networked Application Emulation System (NAPES) allows the AI solution to be tested with different patterns to evaluate the performance of the proposed solution. The AI algorithm was trained to maximize the total throughput in the network and effective network utilization. The results presented confirm the validity of applied AI approach to the problem of improving network performance in next-generation networks and the usefulness of the NAPES traffic generator for efficient economical and technical deployment in IoT networking systems evaluation.

scholarly journals RADIUS Authentication on Unifi Enterprise System Controller using Zero-Handoff Roaming in Wireless Communication

2020 ◽  
Vol 1 (4) ◽  
pp. 118-124
Author(s):  
Diyar Naman ◽  
Mohammad Abdulwahab ◽  
Abbas Ibrahim
Keyword(s):  
Wireless Network ◽  
Wireless Lan ◽  
Network Performance ◽  
Network Services ◽  
Educational Institutions ◽  
Commercial Building ◽  
Security Issue ◽  
Network Resources ◽  
Ip Address ◽  
The Right

The demand for setting up a wireless LAN internet connectivity is almost mandatory for every commercial building, home, company, and educational institutions. With the growing number and height of buildings as well as the number of users, it has become essential to apply new techniques to provide better wireless network services, especially for security issue with many applications used by an attacker that can decrypt the traditional password to use network resources, that’s lead to poor network performance for providing network services for people authorized to use it. All of that is almost a very challenge issue when applying outdated techniques. In this research a wireless network has been created considering a large number of users in a multi-floor building using a new control system which can solve the problems by setting up RADIUS authentication via that wireless network with a webpage that automatically appears to the user immediately after connecting to the wireless radio signal and automatically gaining an IP address, lead user directly to the temporary page asking him for  authentication, if the user has the right username and password or even sometimes a code called Voucher, he will get a package assigned to his priority. This technology will eliminate the vulnerability on the wireless connection and the unauthorized user will be discarded from the router, in addition of that authorized users will get authenticated to make better use of network resources.

scholarly journals HTPC: heterogeneous traffic-aware partition coding for random packet spraying in data center networks

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Jiawei Huang ◽  
Shiqi Wang ◽  
Shuping Li ◽  
Shaojun Zou ◽  
Jinbin Hu ◽  
...  
Keyword(s):  
Data Center ◽  
Large Scale ◽  
Network Performance ◽  
Rooted Tree ◽  
Heterogeneous Traffic ◽  
Data Center Networks ◽  
Packet Reordering ◽  
Traffic Characteristics ◽  
Network Utilization ◽  
The Impact

AbstractModern data center networks typically adopt multi-rooted tree topologies such leaf-spine and fat-tree to provide high bisection bandwidth. Load balancing is critical to achieve low latency and high throughput. Although the per-packet schemes such as Random Packet Spraying (RPS) can achieve high network utilization and near-optimal tail latency in symmetric topologies, they are prone to cause significant packet reordering and degrade the network performance. Moreover, some coding-based schemes are proposed to alleviate the problem of packet reordering and loss. Unfortunately, these schemes ignore the traffic characteristics of data center network and cannot achieve good network performance. In this paper, we propose a Heterogeneous Traffic-aware Partition Coding named HTPC to eliminate the impact of packet reordering and improve the performance of short and long flows. HTPC smoothly adjusts the number of redundant packets based on the multi-path congestion information and the traffic characteristics so that the tailing probability of short flows and the timeout probability of long flows can be reduced. Through a series of large-scale NS2 simulations, we demonstrate that HTPC reduces average flow completion time by up to 60% compared with the state-of-the-art mechanisms.

scholarly journals Blocking Probability in Pipeline Forwarding Networks

2014 ◽  
Vol 10 (1) ◽  
pp. 30
Author(s):  
Mario Baldi ◽  
Andrea Vesco
Keyword(s):  
Proper Time ◽  
Blocking Probability ◽  
Network Routing ◽  
Analytical Models ◽  
Network Resources ◽  
High Resource ◽  
Delay Sensitive ◽  
Network Utilization ◽  
Real Size ◽  
Time Frames

As multimedia communications continue to grow steadily on the Internet, pipeline forwarding (PF) of packets provides a scalable solution for engineering delay-sensitive traffic while guaranteeing deterministic Quality of Service (QoS) with high resource utilization. In PF networks resource reservation, while ensuring deterministic QoS on a per-flow basis, can result in a not null blocking probability. A reservation request may fails due to enough resources being available but not during the proper time frames. This work analyses blocking probability of reservation requests since it affects the capability of utilizing network resources to carry traffic with deterministic QoS. The blocking probability and, consequently, the achievable network utilization are analytically derived on general topology PF networks as function of the traffic intensity given the traffic matrix and the network routing. The correctness of the blocking models is also assessed by simulation in different scenarios. This work represent a valuable contribution over previous analytical models of the blocking probability as their application to real size scenarios is impractical due to their computation complexity.

scholarly journals Enhancement of WiMAX networks using OPNET modeler platform

2021 ◽  
Vol 23 (3) ◽  
pp. 1510
Author(s):  
Noor Nateq Alfaisaly ◽  
Suhad Qasim Naeem ◽  
Azhar Hussein Neama
Keyword(s):  
High Speed ◽  
Network Performance ◽  
Performance Metrics ◽  
Channel Model ◽  
Low Cost ◽  
Base Station ◽  
Multipath Channel ◽  
Coverage Area ◽  
Wimax Networks ◽  
Better Than

Worldwide interoperability microwave access (WiMAX) is an 802.16 wireless standard that delivers high speed, provides a data rate of 100 Mbps and a coverage area of 50 km. Voice over internet protocol (VoIP) is flexible and offers low-cost telephony for clients over IP. However, there are still many challenges that must be addressed to provide a stable and good quality voice connection over the internet. The performance of various parameters such as multipath channel model and bandwidth over the Star trajectoryWiMAX network were evaluated under a scenario consisting of four cells. Each cell contains one mobile and one base station. Network performance metrics such as throughput and MOS were used to evaluate the best performance of VoIP codecs. Performance was analyzed via OPNET program14.5. The result use of multipath channel model (disable) was better than using the model (ITU pedestrian A). The value of the throughput at 15 dB was approximately 1600 packet/sec, and at -1 dB was its value 1300 packet/se. According to data, the Multipath channel model of the disable type the value of the MOS was better than the ITU Pedestrian A type.

scholarly journals A High Performance Target Tracing Transmission Model Oriented to Lifecycle Maximization

2016 ◽  
Vol 2016 ◽  
pp. 1-11
Author(s):  
Zhong-Nan Zhao ◽  
Pei-Li Qiao ◽  
Jian Wang
Keyword(s):  
High Speed ◽  
High Performance ◽  
Network Performance ◽  
Transmission Rate ◽  
Relay Node ◽  
High Rate ◽  
Transmission Model ◽  
Limited Resources ◽  
Speed Sensor ◽  
Rate Transmission

For the high speed sensor networks applications such as Internet of Things, multimedia transmission, the realization of high-rate transmission under limited resources has become a problem to be solved. A high speed transmission and energy optimization model oriented to lifecycle maximization is proposed in this paper. Based on information-directed mechanism, the energy threshold set and the relay node distance selection will be done in the process of target tracing, as a result, retaining a balance between transmission rate and energy consumption. Meanwhile, multiagent coevolution is adopted to achieve the maximum of network lifecycle. Comparing with the relevant methods, indexes for network such as hops, throughput, and number of active nodes, standard deviation of remaining energy, and the network lifecycle are considered, and the simulated experiments show that the proposed method will promote the transmission rate effectively, prolong the network lifecycle, and improve network performance as a whole.

Combined Queue Management and Scheduling Mechanism to Improve Intra-User Multi-Flow QoS in a Beyond 3,5G Network

2012 ◽  
Vol 4 (1) ◽  
pp. 57-68 ◽  
Author(s):  
Amine Berqia ◽  
Mohamed Hanini ◽  
Abdelkrim Haqiq
Keyword(s):  
Real Time ◽  
High Speed ◽  
Packet Scheduling ◽  
Buffer Management ◽  
Packet Delay ◽  
Queue Management ◽  
Performance Parameters ◽  
Buffer Allocation ◽  
Network Resources ◽  
Delay Jitter

Packet scheduling and buffer management are the two important functions adopted in networks design to ensure the Quality of Service (QoS) when different types of packets with different needs of quality share the same network resources. The Packet scheduling policy determines packet service priorities at the output link, it can reduce packet delay and delay jitter for high-priority traffic. The buffer management involves packet dropping and buffer allocation. The overall goal of such schemes proposed in High Speed Downlink Packet Access (HSDPA) is to take advantage of the channel variations between users and preferably schedule transmissions to a user when the channel conditions are advantageous; it does not take in consideration the characteristics of the flows composing the transmitted traffic to the user. This paper compares two queue management mechanisms with thresholds applied for packets transmitted to an end user in HSDPA network. Those mechanisms are used to manage access packets in the queue giving priority to the Real Time (RT) packets and avoiding the Non Real Time (NRT) packets loss. The authors show that the performance parameters of RT packets are similar in the two mechanisms, where as the second mechanism improves the performance parameters of the NRT packets.

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