NAV Network Administration Visualized
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administration monitoring network network administration network monitoring

NAV Description

Network Administration Visualized Network Administration Visualized is an advanced software suite to monitor large computer networks. It automatically discovers network topology, monitors network load and outages, and can send alerts on network events by e-mail and SMS, allowing for flexible configuration of alert profiles. NAV was developed at the Norwegian University of Science and Technology (NTNU). Development started in 1999. It originated as a collection of scripts used internally at NTNU's ITEA Network group. In 2001 UNINETT became interested in its development, and has since been funding NAV development at NTNU on behalf of all universities and colleges in Norway. In 2006 the development of NAV was moved from NTNU to UNINETT. The NAV project is free and it's available under the GNU GPLv2 license.Network Administration Visualized is an advanced software suite to monitor large computer networks. It automatically discovers network topology, monitors network load and outages, and can send alerts on network events by e-mail and SMS, allowing for flexible configuration of alert profiles.NAV was developed at the Norwegian University of Science and Technology (NTNU). Development started in 1999. It originated as a collection of scripts used internally at NTNU's ITEA Network group. In 2001 UNINETT became interested in its development, and has since been funding NAV development at NTNU on behalf of all universities and colleges in Norway.As of 2004 NAV is made freely available under the GNU General Public License. NAV runs on a unix platform, software packages are currently available for Debian, RHEL/Centos, Suse and FreeBSD. Here are some key features of "NAV": · A topology database modeling the running network. The interconnection of devices is auto detected. · A status monitor that detects network outages. For severe cases NAV will pinpoint root cause, thus solving a potential problem of information overload (which in turn can decrease the overall downtime). · Traffic statistics for all “intersections” in the network; i.e. all router and switch ports. Octet, packet and error counters are collected, along with CPU and memory statistics (and more). NAV also gathers statistics on servers, i.e. disk usage, memory, load etc. · Machine tracker with historical data on the movements of all connected machines in the network. · A traffic map that displays topology on layer 3 with drill down view of the underlying layer 2 topology. Traffic and router CPU load are shown on the same map. · A network explorer giving a graphical tree-structured display of the network on layer 2, also showing spanning tree states. You may for instance search for a particular server and the network explorer will expand the relevant switches to show a network trace to the server. · Reports that lists the inventory of routers and switches in the network. Information on software version, equipment type, location etc. Also detailed information of router and switch ports with data on IP address / prefixes, vlans, port speed and duplex etc. · An IP device center that serves as a dashboard for a particular device with all information gathered, including a graphical view used and unes switch and/or router ports. · A threshold monitor that gives alarms based on high load / high error rates or severe CPU load etc. Hysteresis is used as basis for the state full threshold monitor. · A module monitor that detects outage of switch or router components, i.e. individual switches in a switch stack or modules in a chassis. · A service monitor that reports on service outages. Support for the most important services; ssh, http, imap, pop, smtp, smb, rpc, dns, dc. Can easily be expanded to support more services. · A general event system that processes all events, including alarms from external systems. · A flexible alert system, where each NAV user can adjust his own profile with fine-grained control options. Currently support for email and SMS, can easily be expanded in the future. Profiles can be made to adjust the volume and types of alarms wanted, typically as a function of time of day and week. In addition: · A switch port blocking tool (Arnold). Use it to manually block switch ports and thereby take machines off the network, or use it to run automated blocking raids. Requires SNMP write access to the switches. · A layer 2 traceroute tool. · A Cisco Syslog Analyzer that structures and lets you search syslog messeges from cisco devices. · A message system that displays operational messages to IT support staff and end users. · A maintenance tool to put devices on maintenance for a planned time period and thus suppress alarms. · A logistics system (device tracker) that keeps track of the movement of devices from ordering to their end of life. · A general mechanism for authentication and authorization of NAV users. On a group level rights can be adjusted for all users of the system. Requirements: · Python · Perl · Java 2 Standard Edition Runtime Environment What's New in This Release: · NAV 3.5.4 has just been released, fixing a regression that was introduced by NAV 3.5.3. Get it from the download section.

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