NAV

1
NAV

• A comprehencive network management tool
• Vidar Faltinsen
• NTNU, Trondheim, Norway

2
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

NTNU AS 64514
UNINETT AS 224
Kalvskinnet
Øya
Sentrum
Oslo

• network operations
• staff of 8 persons
• many students

Trd
ET
HB
SB
ntnu-gw2
ntnu-gw
Gløshaugen
Kjemi
RFB
Tyholt
Moholt
SINTEF AS 64512
Dragvoll
Lade
3
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
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
The main components
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The NAV database
a model of the running network
Seed files
perl scripts
NAVdb
snmp
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
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Key tables
1 N
8
Autodetecting the topology
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Reports
10
Machine tracking
11
Traffic data gathering
12
Cricket
13
Visualization
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Network load map (1)
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Network load map (2)
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Network load map (3)
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Network explorer
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Network monitoring
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The event system
status monitor
threshold monitor
www
external systems
event and alert engine
email
SMS
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Current status
WLAN support
system management integration
21
Further information
web metanav.ntnu.no email Vidar.Faltinsen_at_itea
.ntnu.no
Questions?