Automatic deployment and control of network services in NFV environments

2020 ◽  
Vol 164 ◽  
pp. 102677
Author(s):  
Ming Chen ◽  
Shunkang Zhang ◽  
Hai Deng ◽  
Bing Chen ◽  
Changyou Xing ◽  
...  
Keyword(s):  
Network Services ◽  
Automatic Deployment ◽  
And Control

Software Defined Networks—A Network Programme and Its Dynamic Services

2020 ◽  
Vol 17 (9) ◽  
pp. 3927-3933
Author(s):  
B. Vineetha ◽  
M. Sumana
Keyword(s):  
Control System ◽  
Load Balancing ◽  
Network Services ◽  
Software Defined Networks ◽  
Control Plane ◽  
Service Function ◽  
Flow Through ◽  
And Control ◽  
Dynamic Services ◽  
Network Component

As network component is increasing, the managing and controlling systems from a central based control system becomes very complex. The technology used to resolve this is called Software Defined Networks (SDN) which helps to manage and control the system through programs. SDN stands as a developing technique that divides single network as data and control plane. The benefit of SDN are provides more performance, managing the packet flow through diverse dealer’s organization components. The complexities continued to raise when implementing network services both from technical and organizational views. Here in this paper generally focuses on how organizations can deal with the challenge of introducing service chaining and developing critical network services by using the technology SDN and also delivering diverse services of network to user in one system thus customers can fulfill their desire of services based on requests. The “Service Function Chaining” facility of SDN provides services like Load Balancing, Video Optimizing and Firewall.

scholarly journals Performance Evaluation of Pox Controller for Software Defined Networks

2019 ◽  
Vol 8 (9S2) ◽  
pp. 679-684
Keyword(s):  
Performance Metrics ◽  
Network Control ◽  
Network Services ◽  
Software Defined Network ◽  
Software Defined Networks ◽  
Control Plane ◽  
Data Plane ◽  
Pox Controller ◽  
New Challenges ◽  
And Control

In traditional network the coupling of data plane and control plane makes the data forwarding, processing and managing of the network hard and complex. Here each switch takes its own decision, makes the network logically decentralized. To overcome the limitations in traditional network the Engineers developed a new model network known as Software Defined Network (SDN). This network the control plane is decoupled from the data plane making it less complex. It moreover has a logically centralized approach unlike the existing network. This separation enables the network control to be directly programmable and the architecture to be abstracted for applications and network services. SDN platform provides advantages like programmability, task virtualization and easy management of the network. However, it faces new challenges towards scalability and performances. It is a must to understand and analyze the performances of SDN for implementation and deployment in live network environments. SDN working with POX is studied. This paper analyses the working of POX controller and evaluates the performance metrics of POX controller for SDN environment. The emulation is done using the Emulation software

IoT Interoperability on Top of SDN/NFV-Enabled Networks

2019 ◽  
pp. 127-152
Author(s):  
Vaios Koumaras ◽  
Marianna Kapari ◽  
Angeliki Papaioannou ◽  
George Theodoropoulos ◽  
Ioannis Stergiou ◽  
...  
Keyword(s):  
Communication Network ◽  
Internet Of Things ◽  
Network Services ◽  
The Internet ◽  
Iot Platforms ◽  
Automatic Deployment ◽  
Online Access ◽  
Set Up ◽  
The Internet Of Things

The ubiquity of the internet led to a diverse number of devices referred to as the “things” to have online access. The internet of things (IoT) framework's infrastructure is formed by sensors, actuators, computer servers, and the communication network. Within this framework, the chapter focuses on IoT interoperability challenges through virtualization agility. The use of SDN/NFVs aims to face the 5G interoperability challenge by allowing the automatic deployment and programming of network services. Consequently, virtual gateways need to be used so that interoperability is ensured between various objects and technologies. As a result, experiments will be performed on various IoT platforms which consist of physical and virtual parts. In specific, the process will be on top of a testbed so that MQTT, CoAP, and UDP protocols will be instantiated and set up in order to provide an interoperable layer using a virtual gateway.

Control Technology for Power Resources Based on Improved Q Learning Algorithm for Automated Intelligent Control

2018 ◽  
Vol 22 (7) ◽  
pp. 1065-1070
Author(s):  
Run Ma ◽  
Keyword(s):  
Control Method ◽  
Learning Algorithm ◽  
Network Services ◽  
Power Resource ◽  
Q Learning ◽  
Control Power ◽  
Power Resources ◽  
Femtocell Network ◽  
Indoor Wireless ◽  
And Control

With the advancement in internet technologies, requirements for quality of indoor wireless communication have increased. Femtocell, which is an effective approach to improve indoor communication quality, can provide highly-efficient indoor network services for users. This study puts forward a power resource control method based on Q learning algorithm for improved solutions to the problems of frequency spectrum and power resource allocation of a two-tier femtocell network. The algorithm was further improved, and was compared with the traditional algorithm via a simulation experiment. It was found that the improved Q learning algorithm could enhance the message capacity and control power resource; this provides a reference for the application of Q learning algorithm in femtocell communication.

scholarly journals Study of Application of Software Defined Network to Real Networks

2018 ◽  
Vol 7 (3.12) ◽  
pp. 854
Author(s):  
T Manoranjitham ◽  
K Sai Vijaya Kumar ◽  
B Varshith
Keyword(s):  
Network Services ◽  
Software Defined Network ◽  
Control Plane ◽  
5G Networks ◽  
Communication Industry ◽  
Data Plane ◽  
Network Operations ◽  
Reduced Costs ◽  
And Control ◽  
Network Administrators

This paper presents the application of Software Defined Network to Real Networks. Software Defined Networking is an intriguing concept in the networking and communication industry which provides various uses, from productive network operations to reduced costs in the networking field. The SDN architecture provides the network administrators to implement new network services and easy management of the network .This operation is done by separating the data plane and control plane that makes decision .The data plane forwards packet and control plane manages traffic.  In this paper we are studying the application of SDN to Real Networks such as SDN for Internet of Things, Artificial Intelligence, 5G Networks, Wireless Networks.

Control of Metal Alloy Oxidation with Electric Fields

1973 ◽  
Vol 31 ◽  
pp. 164-165
Author(s):  
R. R. Dils ◽  
P. S. Follansbee
Keyword(s):  
Electric Fields ◽  
Oxidation Process ◽  
Base Alloy ◽  
Oxide Surface ◽  
Platinum Electrodes ◽  
Insulating Layer ◽  
Iron Base Alloy ◽  
Alloy Oxidation ◽  
Aluminum Oxide Layer ◽  
And Control

Electric fields have been applied across oxides growing on a high temperature alloy and control of the oxidation of the material has been demonstrated. At present, three-fold increases in the oxidation rate have been measured in accelerating fields and the oxidation process has been completely stopped in a retarding field.The experiments have been conducted with an iron-base alloy, Pe 25Cr 5A1 0.1Y, although, in principle, any alloy capable of forming an adherent aluminum oxide layer during oxidation can be used. A specimen is polished and oxidized to produce a thin, uniform insulating layer on one surface. Three platinum electrodes are sputtered on the oxide surface and the specimen is reoxidized.

Evidence for a Blood Ganglion Barrier in the Superior Cervical Ganglion of the Rat

1982 ◽  
Vol 40 ◽  
pp. 204-204
Author(s):  
D. M. DePace
Keyword(s):  
Blood Vessels ◽  
Superior Cervical Ganglion ◽  
Peripheral Nerves ◽  
Time Schedule ◽  
Transmission Electron ◽  
Cervical Ganglion ◽  
The Central Nervous System ◽  
Cervical Ganglia ◽  
Capillary Circulation ◽  
And Control

The majority of blood vessels in the superior cervical ganglion possess a continuous endothelium with tight junctions. These same features have been associated with the blood brain barrier of the central nervous system and peripheral nerves. These vessels may perform a barrier function between the capillary circulation and the superior cervical ganglion. The permeability of the blood vessels in the superior cervical ganglion of the rat was tested by intravenous injection of horseradish peroxidase (HRP). Three experimental groups of four animals each were given intravenous HRP (Sigma Type II) in a dosage of.08 to.15 mg/gm body weight in.5 ml of.85% saline. The animals were sacrificed at five, ten or 15 minutes following administration of the tracer. Superior cervical ganglia were quickly removed and fixed by immersion in 2.5% glutaraldehyde in Sorenson's.1M phosphate buffer, pH 7.4. Three control animals received,5ml of saline without HRP. These were sacrificed on the same time schedule. Tissues from experimental and control animals were reacted for peroxidase activity and then processed for routine transmission electron microscopy.

Effects of renovascular hypertension on rat adrenal zona glomerulosa

1978 ◽  
Vol 36 (2) ◽  
pp. 582-583
Author(s):  
G. Mazzocchi ◽  
P. Rebuffat ◽  
C. Robba ◽  
P. Vassanelli ◽  
G. G. Nussdorfer
Keyword(s):  
Renovascular Hypertension ◽  
Left Kidney ◽  
Renin Angiotensin System ◽  
Plasma Renin ◽  
Zona Glomerulosa ◽  
Ultrastructural Changes ◽  
Albino Rats ◽  
Left Renal Artery ◽  
Angiotensin System ◽  
And Control

It is well known that the rat adrenal zona glomerulosa steroidogenic activity is controlled by the renin-angiotensin system. The ultrastructural changes in the rat zona glomerulosa cells induced by renovascular hypertension were described previously, but as far as we are aware no correlated biochemical and morphometric investigations were performed.Twenty adult male albino rats were divided into 2 experimental groups. One group was subjected to restriction of blood flow to the left kidney by the application of a silver clip about the left renal artery. The other group was sham-operated and served as a control. Renovascular hypertension developed in about 10 days: sistolic blood pressure averaged 165 ± 6. 4 mmHg, whereas it was about 110 ± 3. 8 mmHg in the control animals. The hypertensive and control rats were sacrificed 20 days after the operation. The blood was collected and plasma renin activity was determined by radioimmunological methods. The aldosterone concentration was radioimmunologically assayed both in the plasma and in the homogenate of the left capsular adrenal gland.

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