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1373 discussions

Goodbye, John-Magne!
by Morten Brekkevold 31 Aug '18

31 Aug '18

Today is John-Magne Bredal's last day at Uninett. I would like to take the time to acknowledge and thank John-Magne Bredal for the work he has put into NAV for the past 16 years, both at NTNU and at Uninett. He wrote his master's thesis on intrusion detection systems at NTNU under the guidance of Vidar Faltinsen, while at the same time working part-time on NAV development at the NTNU IT department. He graduated in 2002 and immediately started a full-time job at the NTNU IT department at the same time I did. Although he was working mainly with security at the time, he kept on with NAV development, focusing on NAV's Cricket integration and SNMP trap daemon, moving on to creating the Arnold detention system. While Uninett took charge of NAV development when I moved there in 2006, he kept on contributing from the NTNU side. He eventually moved on from the networking section to the software development section of the IT department, where he began honing his skills as a front end developer - skills he also put into practice in NAV development. In 2012, John-Magne was finally hired by Uninett to work full-time on NAV development. Since 2012, John-Magne has helped architect the redesigned NAV 4.0, introduced the NAV API and otherwise put much time and effort into improving the NAV user experience. Now, John-Magne is moving on to tackle the software needs of the Norwegian health sector, at Hemit, and I would like to wish him the best of luck! You will be missed :-) -- Morten Brekkevold Uninett

3 2

Missing details from one type of switch
by René Romijn 27 Jun '18

27 Jun '18

Hi, Not sure since which update, but i am missing all the port details for all my HP 2620 Power Over Ethernet switches type J9625A I have other normal 2620 (J9623A) switches with no problems, could this related to POE info? Kind regards, René

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Announcement: NAV 4.8.5 released
by Morten Brekkevold 21 Jun '18

21 Jun '18

The fifth maintenance release of the 4.8 series of NAV is now out! The source code is available for download at GitHub [1]. New packages for Debian 8/9 (Jessie/Stretch) are published in our APT repository [2], as usual. The virtual appliance will be updated shortly. Changes ======= Fixed GitHub issues in this release: * #1688 (Report crashes when using %, * or non-ASCII characters in filter values) * #1693 (Changing password from "User and API Administration" leads to KeyError) * #1702 (Adding log entries with non-ascii characters crashes page) * #1711 (Regression: Report crashes when attempting to sort a column filtered on a non-ASCII value) * #1719 ('navdump -a' puts status messages into the output files) * #1721 (Widget spinner visible when opening tool-menu) * #1729 (Room search "CSV download" CR in "last active" field) * #1734 (l2trace crashes when searching for invalid IP addresses) * #1735 (HTTP errors from Graphite shouldn't crash NAV's Graphite render proxy) Copyright changes: Third party copyright owners of NAV code, like The Norwegian University of Science and Technology, and the University of Tromsø, have signed over their copyright for their code contributions to Uninett. NAV 4.8 is still licensed under GPLv2-only, but will be relicensed under GPLv3 in the upcoming 4.9 series. This should have no impact on end users; as a company with public ownership, Uninett will always strive to keep NAV under a free and open source license. Happy NAVing everyone! Links ===== [1] https://github.com/UNINETT/nav/releases [2] https://nav.uninett.no/install-instructions/#debian [3] https://github.com/UNINETT/nav/issues -- Morten Brekkevold Uninett AS

1 0

Navtopology Difficulties and VLAN Bandwidth load
by William Daly - Network Specialist, VUSD Technology 30 Mai '18

30 Mai '18

Hello all, A little background: I have been running NAV 4.7.1 for quite some time now. Every time I have tried to upgrade to 4.8.4, things get a little weird. Layer 2 topologies are miss-detected and certain sites show up as completely isolated from the rest of our WAN. Netmap does not show any layer 3 topology at all. Also the IPAM tool will not allow me to enter subnets as NAV has already detected previous prefixes. So, today I decided to do a clean install of 4.8.4. I input only two sites of devices. The issue I now have is netmap does not show layer 2 topology of the two sites. I only see layer 3 of the two sites. We use HP procurve layer 3 switches. I still do not see any bandwidth loads for any given VLAN's. Is this a known issue with NAV and HP procurves? I have never been able to see bandwidth loads on any VLANs from 4.7.1 to 4.8.4. Thank you! William Daly Network Specialist Vacaville Unified School District (707) 453-6170

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Source package for NAV 4.8.4 is "missing"
by Ingeborg Hellemo 28 Mai '18

28 Mai '18

If you go to https://nav.uninett.no/releases/ and try to download NAV 4.8.4 you will get 4.8.3 --Ingeborg

2 1

netmap and lag
by Zhi-Wei Lu 09 Mai '18

09 Mai '18

Hi NAV gurus, We have a very limited test envioronment for NAV, our environment are Foundry based (->Brocade-> Arris and Extreme now). We have enabled lldp on edge switches, but not on ALL upstream routers. Even on connections with lldp on, the map does not show LAG ports correctly, it seems. Is there a manual way to fix netmap problem for those it fails to correctly identify the connections? Thank you. Zhi-Wei Lu IET-CR-Network Operations Center University of California, Davis (530) 752-0155

3 7

Sizing the NAV server
by Zhi-Wei Lu 09 Mai '18

09 Mai '18

Hi NAV gurus, I have been testing NAV on and off for a while with a fraction of our devices on a small VM. I like it more and more as I am getting used to it. I would like to get recommendation of a NAV setup that can handle our environment. Our network is layered like the following: Border Router: 2 Core and Area Router: ~30 Building Router: ~100 Edge Switch: ~1500 Shall we use one big server or multiple servers, physical or virtual for various NAV management components? What CPU, MEMORY, DISK IO, and DISK size shall we plan for? Thank you very much for your help. Zhi-Wei Lu IET-CR-Network Operations Center University of California, Davis (530) 752-0155

2 1

Announcement: NAV 4.8.4 released
by Morten Brekkevold 05 Apr '18

05 Apr '18

The fourth maintenance release of the 4.8 series of NAV is now out! The source code is available for download at GitHub [1]. New packages for Debian 8/9 (Jessie/Stretch) are published in our APT repository [2], as usual. The virtual appliance will be updated shortly. Changes ======= Fixed GitHub issues: * #1638 ('array index out of range' when viewing a trunk port in PortAdmin) * #1643 (Location with active alerts - edit title) * #1650 (Submitting a threshold rule without a target crashes with a KeyError) * #1655 (Auditlog only displaying the first 100 entries in the log) + #1654 (Fix broken auditlog browsing and auditlog more things) * #1656 (Sensor widget crashes when sensor is missing) * #1660 (UninettMailDispatcher does not support non-ASCII characters and requires SMTP server on localhost) * #1661 (Business reports, link availability - want description) * #1664 (Remove bracket syntax for url parameters to Graphite) * #1665 (Interface details tries to get sensor data on empty sensorlist) * #1669 (Shouldn't use CAM to select topology for aggregated ports where LLDP is available on the physical ports) + #1685 (Do not consider CAM data from aggregator ports when there is LLDP/CDP topology available from its aggregated ports) * #1670 (Treshold editor doesn't work for metrics with hash characters in name) * #1673 (Repeated traceback e-mails for Internal Server Error: /netmap/traffic/layer2/) * #1676 (Audit log changes to API tokens) * #1677 (ipdevinfo should link to an IP Device's audit log) * #1678 (EventMixIn.get_subject() should never return a string) * #1680 (SeedDB patch editor only lists switch ports, not physical ports) Happy NAVing everyone! Links ===== [1] https://github.com/UNINETT/nav/releases [2] https://nav.uninett.no/install-instructions/#debian [3] https://github.com/UNINETT/nav/issues -- Morten Brekkevold UNINETT AS

1 0

Traffic volume per VLAN
by cristina.caselles＠grupoversia.com 05 Apr '18

05 Apr '18

Hi, Could we have information about traffic volume per VLAN on an specific Switch? Thank you, Cristina

2 1

Interface graphs only showing in Graphite
by soren＠fab-it.dk 05 Mar '18

05 Mar '18

Hi list In my search for the missing link, I'm looking for a clue stick as to where my interface graphs disappear. I have installed Nav version 4.8.3 on Debian Stretch and currently monitoring two HP switches, ProCurve 2810 and 2910. The problem I have is in the "ranked statistics"-page, there is no interface traffic data in the graphs - instead I get a message: "No data was found for the given timeframe. This may indicate a problem with the data collection and/or presentation. Try choosing a longer timeframe to see when the problem started." But I do get graphs if I choose the "CPU highest average" - so SNMP apparently is working fine. When I access Graphite directly on port 8000 and traverse the tree Metrics-> nav-> devices-> ip-> port-> ifinOctets I am able to see a graph for that interface. What link between Nav and Graphite am I missing? Curiously I tried the shrink wrapped image on a VirtualBox and had the opposite problem. Monitoring another Procurve 2910 I only got traffic graphs and no "CPU highest average"-graphs. Kind regards Søren Aurehøj - Fab:IT

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