1. NAV A comprehencive network management tool Vidar Faltinsen NTNU, Trondheim, Norway

2. 222 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav The university network 17000 machines connected, 3500 student dormitories gigabit MAN across the city 1 Gbps Internet access, peak load of 500 Mbps 30 routers, 1400 switches, 150 WLAN access points network operations staff of 8 persons many students NTNU: AS 64514 Tyholt Øya Moholt Dragvoll Sentrum Kalvskinnet UNINETT AS 224 ntnu-gw ETHBSB KjemiRFB ntnu- gw2 SINTEF AS 64512 Lade Trd Oslo Gløshaugen

3. 333 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Why develop NAV? Looked at several commercial NMS in 1998 – Focus on monitoring (not configuration) – Wanted something simple, yet powerful Implemented a basic system in 1999 – Availability monitor understanding topology – Traffic statistics based on MRTG Evolved from there...

4. 444 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav NAV status - August 2003 Development  4 years of development: 1999 -2003.  6 ”man years” of work, 20 persons involved.  40000 lines of code. Perl, php, java, postgresql. Distribution  Development projects with funding from UNINETT  Freely available to UNINETT members Installations  Now running at 4 universities and 10 colleges in Norway.

5. 555 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav The main components delay / loss service monitor network explorer network load map RRD cricket tabular reports machine tracker NAVdb report generator status monitor threshold monitor www event and alert engine external systems email SMS device tracker jabber The heart of NAV...

6. 666 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav a model of the running network net_equipment.txt room ip-address in charge category snmp community 300 : 129.241.0.101 : net : GW : : xxx 230 : 129.241.161.13 : net : SW : : xxx 230 : 129.241.75.6 : net : EDGE : : xxx : yyy Manual registration of key information Seed files perl scripts snmp The NAV database NAVdb

7. 777 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Router- interface IP 2 mac IP prefix device type location organizationinventory 1 … N switchport vlan mac 2 port Key tables

8. 888 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Physical topology ARP CAM CDP Autodetecting the topology Vlan topology trunks STP

9. 999 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Reports machine tracker NAVdb report generator

10. 10 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Machine tracking

11. 11 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Traffic data gathering NAVdb makecricketconfig.pl tabular reports config-tree router2 routersrouter int.switchessw. ports routerx router1 switch2 switchx switch1 RRD cricket cricket collector

12. 12 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Cricket

13. 13 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Visualization network explorer network load map RRD cricket tabular reports machine tracker NAVdb report generator

14. 14 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Network load map (1)

15. 15 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Network load map (2)

16. 16 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Network load map (3)

17. 17 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Network explorer

18. 18 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Network monitoring network explorer network load map RRD cricket tabular reports machine tracker NAVdb report generator status monitor threshold monitor

19. 19 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav The event system network explorer network load map RRD cricket tabular reports machine tracker NAVdb report generator status monitor threshold monitor www event and alert engine external systems email SMS

20. 20 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Current status delay / loss service monitor network explorer network load map RRD cricket tabular reports machine tracker NAVdb report generator status monitor threshold monitor www event and alert engine external systems email SMS device tracker jabber system management integration WLAN support This year’s activity

21. 21 Vidar.Faltinsen@itea.ntnu.no, August 25 2003 nav Questions? web: metanav.ntnu.no email: Vidar.Faltinsen@itea.ntnu.no Further information