Network Management Architecture in the Macedonian Academic and Research Network - MARNet Goran Muratovski [email protected]
Mar 18, 2016
Network Management Architecture in the Macedonian Academic and
Research Network - MARNet
Goran [email protected]
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
Contents
OVERVIEW
• MARNet – basic data• Present topology of the networking infrastructure• Network Monitoring tools• Discussion on the demands
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
MARNet – the beginnings
MARNet was founded in 1993 as an organizational unit of the Ss Cyril and Methodius University in Skopje– to respond to the growing needs of the academia for means for easier and
more efficient collaboration and to access the growing Internet– as a dedicated and devoted endeavour of an aware experts from the
University who followed the model from the more developed western NRENs
– the satellite link to ACOnet was established in 1995 with the full financial support of the Soros foundation in Macedonia
– the supported user base was the teaching staff, the students and the administration of most of the faculties of the Ss Cyril and Methodius University
– the networking infrastructure was the already established computer network of the Ss Cyril and Methodius University spread over 5 campuses comprising nearly two dozen of faculties and research institutes
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
The geographical spread
The first regional links out of the capital – Skopje were established in 1997
• to the St Clement of Ohrid University in Bitola
• to the Faculty of Geology and Mining in Stip (member of UKiM)
Due to the high prices on the telecomm. market and the growing demands of the regional institutions they start providing their internet connectivity through local ISPs rather then through MARNet
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
Emergence of new potential clients
Starting from year 2002 within the legal system the possibility was given for the private higher education institutions to exist - there are 5 public (state) universities in Skopje, Bitola, Stip, Tetovo and a
new university on information sciences in Ohrid- there are more then 6 private universities most of them in Skopje – the
capital.
Despite the expansion of the potential user base the expected spread of the networking infrastructure of MARNet has not happened- no stable Government funding- high communication prices due to absence of deregulation of the market
and monopoly- no established solid organizational model- no elaborated cost sharing model for the private institutions
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
Current topology
Several Ministriesof the Government
National Broadcasting companyComm. Tower
GEANT
Campus Technical
SiSi
F. of Tech. and
MetallurgyF. of
Mechanical Eng.
F. of Electrical Eng. and Information Sciences
F. of Dramatic Arts
Campus Arch. And Civil Eng.
SiSi
Campus Biotech. Sciences
F. of Agriculture
F. of Forestry
SiSi
F. of Veterinary Medicine
I. of Earthquake Engineering
National & Univ.
Library
I. of National History
I. of Macedonian Literature
TOPOLOGY MAP OF MARNet
MM fiber/1Gbps
wireless link 4Mbpsanalog lease line
SM fiber/1GbpsSM fiber 100Mbps
Campus Natural
Sciences And Mathematics
Building II
SiSi
Building I
ONnet
NEOTEL
SONET
I. of Political &Juridical Res.
F. of Pedagogy
Campus Medicine
SiSi
F. of Medicine
F. of Dentistry
F. of Pharmacy
SiSi
NOC & Campus Social
Sciences
F. of Law
F. of Economy
F. of Filology F. of
Philosophy
SMT-1 155Mbps
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
Network Monitoring Tools
Monitoring tools we use for our network administration and management
– Tobi Oetikker’s MRTG (with web configuration frontend MRTGWebCfg v2.19)– Tobi’s Smokeping – WALKnet (ALVARION proprietary management and monitoring system for their
WALKAir 3000 point-to-multipoint radio system)– Cflowd/Flowscan (deprecated)– ICmyNET.Flow (courtesy of AMRES)
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
MRTG
MRTG is dominantly used for visualization of the bandwidth utilization of MARNet’s links
• version mrtg-2.11.1 with rrdtool
• MrtgWebCfg fronten - managing MRTG config via web - plotting custom RRD plots - defining groups of plots - having the same plot in more than one group - scalable, since the configuration is held in Postgresql database
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
Smokeping
Smokeping is used to depict the latency and to have visual information on the quantity of lost packets on the links
• Interactive graph explorer
• A lot of configurable latency measurement plugins– Fping– Curl– DNS– Radius
• configurable alerting system (e-mail notification)
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
WAKLnet
The wireless subsystem has its own proprietary management system that has monitoring component too.– Management of the base stations (frequency, sectors, interfaces)– Introduction of clients – IP SLAs (MIR, CIR, QoS)– Monitoring (radio signal strength na S/N ratio in both directions)
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
ICmyNet.Flow
Courtesy of our colleagues from AMRES the network flow monitoring tool has been deployed in MARNet
• We need the possibility of regular upates (we have a test version) to provide for a stable operation
• We find the tool very useful for:– Diagnosing network
problems (DoS attacks)– Calculation of aggregation
traffic for some clients inan optional period of time
Belgrade, 20-21.10.2009
Network monitoring workshop for GN3/NA3/T4
Future needs and plans …
• A tool for SLA management– Service availability rate– Mean time to restore– Mean Packet Loss
• Monitoring of environmental parameters (temperature, humidity, state of UPS autonomy)
Thank you for your attention!