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1376 discussions

SNMP agent down
by Steve Kersley 13 Okt '14

13 Okt '14

I'm trying out the NAV virtual appliance (4.1.0), talking to 25 or so Cisco switches. It was working fine but after a few weeks, one of the switches is showing a problem, "SNMP agent down". The SNMP agent is not down. The switch is fine, its configuration hasn't changed. I can talk SNMP to it fine using the same credentials from other machines, and the NAV VM can talk SNMP fine to all of the other switches - all have the same SNMP credentials, and most are the same model of Cisco switch. (I was going to test from the NAV VM or watch the network traffic but the appliance doesn't come with the snmp tools or tcpdump, and is isolated from the Internet so not easily able to install them) Restarting the switch made no difference. I've had a rummage in the logs without seeing anything obvious. Any clues where to look to find why NAV is unable to talk SNMP to this one switch suddenly, after working fine for several weeks? Steve.

2 2

Unmanaged switches
by pentium100＠gmail.com 13 Okt '14

13 Okt '14

Hello, Is there a way to insert an unmanaged switch to the network map? I use some of them in my network and would like to mark them on the map. Right now I have real network topology something like this: Router -- managed switch -- unmanaged switch -- devices Only one devices on the unmanaged switch is shown, even though multiple MACs are detected on the relevant port of the managed switch. Is there a way to mark that there is an unmanaged switch so that those devices are drawn on the map (with link speed/usage pulled from the devices if possible)?

2 1

Mobile routers in NAV
by Sigurd Mytting 26 Sep '14

26 Sep '14

Hi! I will be deploying about 100 mobile routers in cars the next six months, they will be offline whenever the car is moving and out of cellular coverage and when the car is not in use by our roadside people. These routers will be in a closed VPN/APN from our teleprovider so I have full access and controll whenever they are online. I'm wondering how to add these to NAV; I really don't care if they are down and preferably they should not show up as such under "Status". I would like statistics whenever they are online (not to mention the mac-adresses connected, possibly also a few other more specialized metrics like cell signal and so on). If it matters; we'll be using Cisco hardened 819 routers with an integrated WiFi access point. Anyone having any pointers to how I should manage them in NAV? Cheers, -Sigurd

2 7

White spaces in graphs
by Sigurd Mytting 26 Sep '14

26 Sep '14

Hi, my graphs are getting white spaces and I'm trying to tune ipdevpolld: Running with no tuning at all about 80% of the graph is white on every port/device. If I restart ipdevpolld manually with -m most of my graphs are ok, occasionally I get white spaces, lets say around 1-2% of the last day. First of all, is there a way to run ipdevpolld with multiprocess without doing a manual start of the process? (I would expect something in /etc/default/nav.) Besides running multiprocess, what else is usefull? I've tried incereasing max-repetitions without much luck. I do have some timeout issues on satellite links so I've increased this to 4.5. I initially thought this was a graphite problem, but I've heavilly tuned my graphite-host and there seems to be no problems there, running carbon-relay and four carbon-cache and from what I can gather they are not hit hard at all. I have about 46k ports and 1500 devices, one dedicated server for graphite, one for postgresql and one for gui, ipdevpolld and other nav processes. Any hints? Cheers, -Sigurd

2 1

Problem upgrading 4.0.0 -> 4.1.1
by Martin JABUREK 23 Sep '14

23 Sep '14

Hi, I just tried to upgrade, but now I have some issues: - I had 4.0.0 working -Then I downloaded 4.1.1 and do config and make - I pip installed django-hstore - then service nav stop, make install - service nav start Now It complains that ipdevpoll failed to start and I'm also unable to log in to web interface with 500 Error. I can see this error in apache error log: [Tue Sep 23 14:04:33 2014] [error]] mod_wsgi (pid=16795): Exception occurred processing WSGI script '/usr/local/nav/lib/python/nav/wsgi.py'. [Tue Sep 23 14:04:33 2014] [error] Traceback (most recent call last): [Tue Sep 23 14:04:33 2014] [error]] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/wsgi.py", line 219, in __call__ [Tue Sep 23 14:04:33 2014] [error] self.load_middleware() [Tue Sep 23 14:04:33 2014] [error] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 47, in load_middleware [Tue Sep 23 14:04:33 2014] [error] raise exceptions.ImproperlyConfigured('Error importing middleware %s: "%s"' % (mw_module, e)) [Tue Sep 23 14:04:33 2014] [error] ImproperlyConfigured: Error importing middleware nav.django.auth: "cannot import name force_str" I suppose, that I missed some steps in the upgrade process. Can you please suggest, what can be done? Brgds Mat ---------------------------------------------------------------- Tento e-mail včetně příloh obsahuje důvěrné informace a je určen výhradně jeho adresátovi. Pokud jste obdržel(a) tento e-mail omylem, informujte o tom prosím odesílatele a neprodleně jej vymažte ze systému. Neoprávněné šíření, kopírování, úpravy nebo zpřístupnění jeho obsahu je zakázáno. Odesílatel neodpovídá za chyby či ztráty obsahu této zprávy vzniklé v důsledku komunikace prostřednictvím e-mailu. This e-mail and any files attached to it are confidential and intended solely for the named addressee. If you have received this e-mail in error please contact the sender and delete it from your system immediately. Illegal distribution, copying, modification and disclosure of its content is prohibited. The sender of this e-mail shall not be held liable for any errors or loss of contents that may be caused by communication via e-mail.

1 0

navsyncdb, hstore extension and superuser
by Ingeborg Hellemo 19 Sep '14

19 Sep '14

Trying to upgrade my database from 3.15 to 4.1.1. I see that the script tries to connect as user 'root' while "Creating hstore extension": Creating hstore extension in database nav psql: FATAL: no pg_hba.conf entry for host "129.242.5.180", user "root", database "nav", SSL off Failed to install the hstore extension, maybe you need to run as the postgres superuser? I can of course edit my pg_hba.conf but it will not help since my postgres superuser is 'pgsql' not 'root'. How can I make the script connect as user 'pgsql'? or Can I instead run some sql by hand? --Ingeborg

1 1

NAV API
by Jarle Teigen 09 Sep '14

09 Sep '14

Hi, A couple of short questions about NAV API: I want to search NAV for a mac address in arp, and only get back last seen. Is that possible ? An how do I do that ? Is there a feature for sorting of the results ? -- Jarle Teigen

2 1

Switch inventory isn't updated
by Bruno Galindro da Costa 15 Aug '14

15 Aug '14

At http://nav.setic.ufsc.br/report/swport, I can view my interfaces with VLANs assignments. The problem is: the information for a given netbox isn't updated. All of the jobs are running fine for that netbox (green lights in jobs list). For example: I've a set of tagged VLANs in a trunk port on that switch that isn't reported by NAV. I'll sent to Morten DEBUG logs from ipdevpolld inventory job. -- Att. Bruno Galindro da Costa

2 6

Announcement: NAV 4.1.1 released
by Morten Brekkevold 14 Aug '14

14 Aug '14

The first maintenance release of the NAV 4.1 series is now available, version 4.1.1. The source code is available for download at Launchpad [1]. A new package for Debian Wheezy has been published in our APT repository [2]. Changes ======= The following reported issues have been fixed in the new release: * LP#1052804 (NoReverseMatch error on multiple pages when adding IPv6 host with no DNS name) * LP#1316599 (NoReverseMatch exception when trying to load netmap) * LP#1333170 (Disused prefixes aren't properly deleted from the database) * LP#1338548 (Searching for an apparently "invalid" hostname crashes ipdevinfo) * LP#1339575 (Room and organization data keys cannot be added using SQL without first checking for NULL values) * LP#1340193 (NAV gets confused when re-using VLAN tags for multiple broadcast domains) * LP#1340576 (Virtual status of router addresses cycles back and forth, causing net type to swing back and forth between lan and link) * LP#1355693 (Interface names not present in linkState alert messages) * LP#1355923 (dump.py -t room crash) Please refer to the release notes [3] for further information on upgrading from versions prior to 4.1. Happy NAVing everyone! Links ===== [1] https://launchpad.net/nav/4.1/4.1.1 [2] https://nav.uninett.no/wiki/nav_on_debian [3] https://nav.uninett.no/doc/4.1/release-notes.html -- Morten Brekkevold UNINETT AS

1 0

Graphite update frequency
by Bruno Galindro da Costa 14 Aug '14

14 Aug '14

How many times NAV input data into graphite per day for a given switch port? I need to know what is the graphite update frequency of collected data of my switch ports. Is each 1 min/ 5 min...? -- Att. Bruno Galindro da Costa

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