Abstract
Since the beginning of computer networking the administration and configuration of network devices (routers and switches) have been usually performed by using the vendors’ operating systems and their non-standard user CLI (Command Line Interface). This has proven to be a very complex and ineffective solution, especially with fast development and more complexity in the computer networking area. IETF (Internet Engineering Task Force) standard organization created in 2006 the NETCONF protocol in order to define the standard solution for command-oriented CLI user interface for the configuration of network devices of different vendors. Apart from classical computer networks, the importance of NETCONF standard occurs also in the application of new upcoming network architectures, such as Software Defined Networking (SDN) and Internet of Things (IoT), and especially in systems requiring high availability (e.g. hospitals, airports and Data Centers). Today, more than ten years after the creation of the NETCONF standard there is the question about the actual acceptance of NETCONF protocol in current networks and about the actual maturity of NETCONF standard. The topic of the doctoral dissertation deals with defining of advantages of the NETCONF standard in order to obtain higher availability of network devices. Besides, the current state of non-implementation of NETCONF standard by world vendors of networking equipment will be defined and recommendations for increase and improvement in implementation will be proposed. Also, the level of nonimplementation by the network equipment users will be determined and the operation model (activities) with the users will be proposed that will assure an increase in the usage of NETCONF standard with all its advantages.
Highlights
The topic of the doctoral dissertation deals with defining of advantages of the NETCONF standard in order to obtain higher availability of network devices
Mogućnost primjene NETCONF standarda je izuzetno široka i važna za budući razvoj računalnih mreža
NMS koristi naredbe read i write za dobivanje i mijenjanje informacija na Simple Network Management Protocol (SNMP) agentu
Summary
Osnovicu današnjih računalnih mreža i Interneta čini TCP/IP grupa protokola i posredovni mrežni uređaji usmjernici (engl. router) i preklopnici (engl. switch). NETCONF je standard za komandno orijentirani pristup (CLI) konfiguraciji mrežnih uređaja i definiran je 2006. Tako SDN arhitektura (definirana od strane IETF-a u RFC 7426 u siječnju 2015.) koristi dva osnovna protokola za upravljanje konfiguracijom mrežnih uređaja: komandno orijentirani NETCONF i podatkovno orijentiran SNMPv3. Budući da korisnici (administratori, sistemski inženjeri, arhitekti mrežnih sustava i drugi) odabirom i instalacijom nekog protokola u svojim mrežama određuju važnost i zrelost RFC standarda, potrebno je ispitati širinu i način primjene NETCONF standarda u Hrvatskoj (više od deset godina nakon što je prva verzija standarda objavljena, što je vrlo dug period u ICT području). Zbog toga autor potpuno shvaća potrebu za zrelim i široko primijenjenim standardom za komandno konfiguracijsko CLI sučelje (kao što je NETCONF) koji bi znatno pojednostavio i optimizirao rad s mrežnim uređajima, a time i povećao njihovu raspoloživost. Kroz trenutno dostupne informacije i razgovore s kolegama, postavlja se ključno pitanje koliko je NETCONF standard uistinu prihvaćen i primijenjen i od strane proizvođača i od strane korisnika, i što bi trebalo napraviti i poboljšati da dođe do njegove šire primjene
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