590 research outputs found

    Deliverable DJRA1.2. Solutions and protocols proposal for the network control, management and monitoring in a virtualized network context

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    This deliverable presents several research proposals for the FEDERICA network, in different subjects, such as monitoring, routing, signalling, resource discovery, and isolation. For each topic one or more possible solutions are elaborated, explaining the background, functioning and the implications of the proposed solutions.This deliverable goes further on the research aspects within FEDERICA. First of all the architecture of the control plane for the FEDERICA infrastructure will be defined. Several possibilities could be implemented, using the basic FEDERICA infrastructure as a starting point. The focus on this document is the intra-domain aspects of the control plane and their properties. Also some inter-domain aspects are addressed. The main objective of this deliverable is to lay great stress on creating and implementing the prototype/tool for the FEDERICA slice-oriented control system using the appropriate framework. This deliverable goes deeply into the definition of the containers between entities and their syntax, preparing this tool for the future implementation of any kind of algorithm related to the control plane, for both to apply UPB policies or to configure it by hand. We opt for an open solution despite the real time limitations that we could have (for instance, opening web services connexions or applying fast recovering mechanisms). The application being developed is the central element in the control plane, and additional features must be added to this application. This control plane, from the functionality point of view, is composed by several procedures that provide a reliable application and that include some mechanisms or algorithms to be able to discover and assign resources to the user. To achieve this, several topics must be researched in order to propose new protocols for the virtual infrastructure. The topics and necessary features covered in this document include resource discovery, resource allocation, signalling, routing, isolation and monitoring. All these topics must be researched in order to find a good solution for the FEDERICA network. Some of these algorithms have started to be analyzed and will be expanded in the next deliverable. Current standardization and existing solutions have been investigated in order to find a good solution for FEDERICA. Resource discovery is an important issue within the FEDERICA network, as manual resource discovery is no option, due to scalability requirement. Furthermore, no standardization exists, so knowledge must be obtained from related work. Ideally, the proposed solutions for these topics should not only be adequate specifically for this infrastructure, but could also be applied to other virtualized networks.Postprint (published version

    Designing of Wide Area Network with the use of Frame Relay Concept in Real Time Environment: a Proposal

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    Thes e days inter-domain routing protocol, i.e., BGP (Border Gateway Protocol), is getting complicated day by day due to policy mis-configuration by individual autonomous systems. Existing configuration analysis techniques are either manual or tedious, or do not scale beyond a small number of nodes due to the state explosion problem. To aid the diagnosis of mis-configurations in real -world large BGP systems, this paper presents BGP based on Packet Switching Technology and Inter-VLAN where as packet switching technology is WAN technology. Inter - VLAN is a technology to communicate between two ormore VLAN. A company can send or receive any type of data, either text image, video etc. Another important part of network is security. This network would make use of following protocol for security purpose such as PAP, CHAP, ACL, and NAT. The key idea is that, all transmissions are broken into units called packets, each of which contains addressing information that identifies both the source and destination nodes. These packets are then routed through various intermediaries, known as Packet Switching Exchanges(PSEs), until they reach their destination.And there are two parameters associated with a Frame Relay connection are; Committed Information Rate (CIR), Peak Information Rate (PIR) Cisco configuration guidelines, as well as arbitrary user -defined networks. This method improves theapplicability, efficiency, and benefits of the network deployment, it also introduces an infrastructure that enables networking researchers to interact with advanced formal method tool

    OBGP based QoS analysis for optical virtual private network connection setup

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    In a computer network, clients work with different applications; hence there are requirement of speed, bandwidth, delay etc. The parameters are called as Quality of Service (QoS) parameters. QoS guarantees the performance in a network. To meet the growing demand of Optical Virtual Private Network (OVPN), the Internet Service Providers (ISP) should use multiple techniques which ensure the Quality of Service. For performing data communication between nodes in a network the path to be followed should be known. In this project, BGP/OBGP protocols have been discussed and using this protocol, paths have been found between routers. Then the optimal path is found out based on the path attributes. Also the paths are examined for QoS parameters and the best path is chosen. An OVPN model has been discussed and modified for performing Routing & Wavelength Assignment (RWA) function based on QoS requirement which is expressed in terms of Q-factor and trying to achieve minimum blocking probability of path. The objective of this project is to assign best connection between nodes as per the request from clients operating with various applications

    Survivability-enhancing routing scheme for multi-domain networks

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