Upravljanje IP adresama u programski upravljanim mrežama

master's thesis

• Title (english): IP address management in software-defined networks
• Author: Neven Gutić
• Mentor: Željko Ilić (mentor)
• Committee member: Željko Ilić (predsjednik povjerenstva)
• Committee member: Mladen Kos (član povjerenstva)
• Committee member: Marin Šilić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-07-03, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Tradicionalne mreže sastoje se od mrežnih uređaja u kojima su podatkovni i kontrolni sloj spojeni zajedno, što znači da se odluke o upravljanju mrežnim prometom donose u samom uređaju. U takvom okruženju izrada aplikacija koje upravljaju mrežnim uređajima predstavlja veliki problem. Paradigma programski upravljanih mreža nameće se kao rješenje navedenog problema. Glavna ideja programski upravljanih mreža je razdvojiti kontrolni sloj koji donosi odluke o prosljeđivanju od podatkovnog sloja zaduženog za prosljeđivanje podataka.
U SDN-u (eng. Software-defined networks) su uređaji tradicionalnih mreža zamijenjeni jednostavnim uređajima za prosljeđivanje podatkovnih tokova i nadležnim kontrolerima (engl. controller). To je posljedica razdvajanja kontrolnog i podatkovnog sloja, a također je rezultat i logički centralizirano upravljanje mrežom. Jedan od kontrolera je i Ciscov APIC-EM (Application Policy Infrastructure Controller Enterprise Module) koji mrežnim administratorima uvelike olakšava nadzor i upravljanje mrežom. APIC-EM kontrolerom se upravlja aplikacijom koja se sastoji od 8 modula. Oni omogućuju uvid u mrežne uređaje, njihovu topologiju, mjerenje performanski mreže, analizu prometnih tokova, itd.
U sklopu diplomskog rada razvijena je aplikacija „ComWan“ koja omogućuje upravljanje mrežom koristeći APIC-EM kontroler. U odnosu na Ciscovu aplikaciju, ComWan sadrži nekoliko novih modula. Jedan od njih je i modul za upravljanje IP adresama (IPAM) koji bi trebao riješiti problem korištenja često nekonzistentnih Excel tablica od strane mrežnih administratora. Modul se sastoji od hijerarhijskog prikaza IP adresa, podijeljenih u podmreže. U svakoj podmreži se nalazi popis slobodnih i zauzetih IP adresa. Budući da kontroler ima uvid u sve zauzete i slobodne adrese, riješen je problem nekonzistentnosti.

Abstract (english)

Traditional networks consist of network devices where data and control layer are merged together, which means that decisions about network traffic management are brought into the device itself. In such an environment, creating applications for managing network devices is a big problem. The paradigm of a software-defined network is imposed as a solution for this problem. The main idea of software-defined network is to separate control layer that makes decision about forwarding from the data layer responsible for forwarding data.
In the SDN (Software-defined networks), traditional network devices have been replaced by devices for forwarding data stream and competent controllers. This is the result of the separation of the control and data layer, and the result is logically centralized network management. One of the controllers is Cisco's APIC-EM (Application Policy Infrastructure Controller Enterprise Module), which greatly facilitates monitoring and network management. The APIC-EM controller is managed by an application consisting of 8 modules. They provide insight into network devices, their topology, network performance measurement, traffic flow analysis, etc.
As part of the master thesis, a "ComWan" application has been developed that provides network management using the APIC-EM controller. Compared to Cisco's application, ComWan has several new modules. One of them is an IP address management module (IPAM) that should solve the problem of using often inconsistent Excel tables by network administrators. The module consists of a hierarchical IP address representation, subdivided into a subnet. Each subnet contains a list of free and busy IP addresses. Since the controller has insight into all busy and free addresses, the problem of inconsistency has been solved.

• Keywords: SDN; APIC-EM; kontroler; ComWan; IP adresa; IPAM modul
• Keywords (english): SDN; APIC-EM; controller; ComWan; IP address; IPAM module
• Language: english
• URN:NBN: urn:nbn:hr:168:462022
• Study programme: Title: Information and Communication Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije (magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-19 14:00:39