MODEL POVEZOVANJA POSLOVNIH UPORABNIKOV V ŠIROKOPASOVNIH OMREŽJIH

Šebela, Gregor

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Title:	MODEL POVEZOVANJA POSLOVNIH UPORABNIKOV V ŠIROKOPASOVNIH OMREŽJIH
Authors:	ID Šebela, Gregor (Author) ID Kofjač, Davorin (Mentor) More about this mentor...
Files:	MAG_Sebela_Gregor_2013.pdf (2,97 MB) MD5: 4D5BC3BF8017C89535263E57A4BB76D9
Language:	Slovenian
Work type:	Master's thesis
Organization:	FOV - Faculty of Organizational Sciences in Kranj
Abstract:	V magistrski nalogi opisujemo model povezovanja poslovnih uporabnikov v širokopasovnih omrežjih. Model povezovanja služi kot osnova za ponujanje omrežnih storitev poslovnim uporabnikom. Poslovni uporabniki uporabljajo različne storitve glede na velikost podjetja, organiziranost podjetja in tudi panogo, v kateri delajo. V preteklosti so operaterji za ponujanje omrežnih storitev uporabljali povezavno usmerjene tehnologije, kot so najeti vodi, Frame Relay, ATM, X.25. Današnja omrežja so paketno usmerjena, kar prinaša mnogo prednosti. Pomanjkljivost paketnih omrežij pa je, da je možnost zajamčenega prenosa podatkov omejena. Zaradi te pomanjkljivosti današnji operaterji običajno uporabljajo več vzporednih omrežij. Paketna omrežja se uporabljajo za rezidenčne storitve, kot so hitri dostop do interneta, televizija, video na zahtevo, spletna telefonija itd. Za povezovanje poslovnih uporabnikov pa se uporabljajo povezavno usmerjena omrežja. Vzdrževanje več paralelnih omrežij je drago, zato imajo operaterji interes, da bi vse storitve združili na enotnem paketnem omrežju. V sklopu modela povezovanja poslovnih uporabnikov predstavljamo moderno arhitekturo paketnega omrežja, kjer je omrežna inteligenca skoncentrirana v dostopovnih vozliščih. Pametna dostopovna vozlišča omogočajo, da nanje priključimo tako rezidenčne kot tudi poslovne uporabnike. Arhitektura nam omogoča decentralizacijo storitvenega segmenta, kar je pomembno pri zagotavljanju storitev in aplikacij, ki se nahajajo v oblaku operaterja ali katerega od zasebnih ponudnikov. Predlagana arhitektura temelji na tehnologiji IP/MPLS v hrbteničnem in agregacijskem segmentu, tehnologiji MPLS-TP ali MPLS DoD v dostopovnem segmentu in tehnologiji ethernet na povezavi med dostopovnim vozliščem in robno napravo uporabnika. Model povezovanja nam omogoča ponujanje vseh vrst storitev, kjer lahko za storitve z najvišjo prioriteto zagotovimo prenosne poti, ki jamčijo podatkovno hitrost. Za storitve z nižjo prioriteto pa omrežne vire krmilijo mehanizmi za zagotavljanje kakovosti storitev. V primeru okvar v omrežju ali zasičenja nam omrežje podatkovne tokove samodejno preusmeri na katero od alternativnih poti. Preusmeritev prometnih tokov se izvede v času, krajšem od 50 ms. Model povezovanja poslovnih uporabnikov omogoča priključitev rezidenčnih uporabnikov ter majhnih, srednje velikih in velikih podjetij. Za vsak tip uporabnika in podjetja predlagamo metodo priključitve.
Keywords:	- omrežni model - širokopasovna omrežja - MPLS-TP - upravljanje omrežja - kakovost storitev
Place of publishing:	Maribor
Year of publishing:	2013
PID:	20.500.12556/DKUM-42382
COBISS.SI-ID:	7238419
NUK URN:	URN:SI:UM:DK:PWZ9D6K8
Publication date in DKUM:	08.11.2013
Views:	1694
Downloads:	199
Metadata:
Categories:	FOV
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Secondary language

Language:	English
Title:	BUSINESS CONECTIVITY MODEL IN BROADBAND NETWORKS
Abstract:	This master thesis describes a model for connecting business users in broadband networks. This connection model serves as a basis for the provision of network services to business users. Business users utilize different services, depending on the size and organization of the company and branch of industry they work in. In the past, network service providers relied on connection-oriented technologies, such as leased lines, Frame Relay, ATM, and X.25. Current networks are packet-oriented, and have many benefits. A drawback of packet networks is that they have limited capabilities for data transfer at guaranteed bit rates. As a result, the operators today usually rely on several parallel networks. Packet-oriented networks are used for residential services, such as fast internet access, television, video-on-demand, web telephony, while connection-oriented networks are employed for the connection of business users. The maintenance of several parallel networks is expensive so operators tend to join all services in a unified packet-oriented network. Within the framework of the business users' connection model, we present a modern architecture of a packet-oriented network where network intelligence is concentrated in access nodes. Smart access nodes provide the connection of both residential and business users. The architecture makes it possible to decentralize the service segment, which is essential in the provision of services and applications that reside in the cloud of the operator or a private provider. The architecture proposed relies on IP/MPLS technology in the backbone and aggregation segment, MPLS-TP or MPLS DoD technology in the access segment, and Ethernet technology in the connection between the access node and a user edge device. This connection model allows the provision of all types of services, whereby transmission paths with guaranteed bit rates can be provided for the highest-priority services. Network resources employed for low-priority services are controlled by QoS (Quality of Service) mechanisms. In the event of a network fault or congestion, the network automatically reroutes data flows to an alternative path. Traffic flows are redirected in a time shorter than 50 ms. The model of connecting business users allows the connection of both residential users as well as small, medium-sized and large companies. We propose a method of connection for each type of user and company.
Keywords:	- network model - broadband networks - MPLS-TP - network management - quality of service

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