Multiprotocol Label Switching Virtual Private Networks

Abstract

U ovom diplomskom radu opisana je arhitektura mreža pružatelja telekomunikacijskih usluga. Nadalje, definiran je način rada, ciljevi razvoja te prednosti primjene MPLS tehnologije. Također, definirani su osnovni elementi MPLS mreže, protokoli koji se primjenjuju za distribuciju oznaka i usmjeravanje paketa te neka od MPLS aplikacijskih proširenja. Budući da se MPLS VPN smatra najprihvaćenijim aplikacijskim proširenjem, opisane su njegove inačice po slojevima: MPLS Layer 3 VPN, MPLS Layer 2 VPN, Virtual Private Wire Service i Virtual private LAN service. Osim toga, opisan je proces planiranja mreže koji se sastoji od telekomunikacijskog predviđanja dimenzioniranja te tehnika upravljanja mrežnim prometom, pri čemu su opisana dva najčešće korištena alata za planiranje MPLS mreže: IP/MPLSView i iVNT. U praktičnom djelu rada odrađena je OSPF, MPLS i VPLS konfiguracija MikroTik-ova prema zadanoj testnoj mrežnoj topologiji (Slika 8.1.) te je omogućen pristup Internetu putem MikroTik-a P1.This graduate thesis is based on trends according to Internet service provider's core networks – ISP, MPLS development, operation mode, some of it's development goals and advantages of it's application. Also, in this thesis are defined some of main elements of MPLS networks, main MPLS protocols which are used for distribution and routing, and some of MPLS application extensions. Since we consider MPLS VNP as most successful application extension, here are desribed his variants by layers: MPLS Layer 3 VPN, MPLS Layer 2 VPN, Virtual Private Wire Service and Virtual private LAN service. Beside that, this thesis is describing network planning process which consists of telecommunication predictions, dimensioning and traffic engineering whereby are described two most used tools for MPLS network planning: IP/MPLSView and iVNT. Practical part of this thesis consist of OSPF, MPLS and VPLS configuration of MikroTik's according to default network topology (picture 8.1.) and Internet access is enabled via MicroTik P1