Februar 2012 - Nav-users - lister.unit.no

UNINETT is hiring a NAV developer
by Morten Brekkevold 30 Apr '12

30 Apr '12

Hi everyone, our mailing lists aren't too high-traffic, so I hope it doesn't hurt to spam you with a job ad ;) Up until now, I've been the only full-time employee working on NAV development at UNINETT. This is finally about to change: We are now hiring another full-time software engineer to join our NAV development team in Trondheim. If you are interested, or know of someone who might be, please see the full job ad here: http://www.uninett.no/en/job-opportunity-software-engineer-network-monitori… -- Morten Brekkevold UNINETT

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Where do mcc.py get its data from
by Ingeborg Hellemo 19 Mar '12

19 Mar '12

NAV 3.10.1 We have several (but not all) routers and switches where cricket try to collect data fram OIDs the devices doesn't know anything about. I fail to find any similarities in type of device or OS-version between the devices. For a switch the offending lines in switches/navTargetTypes looks like this: targetType brusS101-sw.infra.uit.no ds = "c1900Bandwidth, c1900Bandwidth, c1900BandwidthMax, c1900BandwidthMax, mem5minFree, mem5minFree, mem5minUsed, mem5minUsed, sysUpTime, sysUpTime, c2900Bandwidth, c2900Bandwidth, c5000Bandwidth, c5000Bandwidth, c5000BandwidthMax, c5000BandwidthMax, cpu1min, cpu1min, cpu5min, cpu5min, hpcpu, hpcpu, hpmem5minFree, hpmem5minFree, hpmem5minUsed, hpmem5minUsed" view = "bandwidth: c1900Bandwidth c1900BandwidthMax c2900Bandwidth c5000Bandwidth c5000BandwidthMax, cpu: cpu1min cpu5min hpcpu, memory: hpmem5minFree hpmem5minUsed mem5minFree mem5minUsed, sysuptime: sysUpTime" Note that it tries to collect both c1900Bandwidth, c2900Bandwidth and c5000Bandwidth When I check the device via https://nav.example.com/report/netboxsnmpoid?netbox id=## I don't find any OIDs relating to Bandwidth at all. For Cisco routers the offending OID is hpcpu and hpmem*. targetType kulth-gsw.infra.uit.no ds = "c5000Bandwidth, c5000BandwidthMax, cpu1min, cpu5min, hpcpu, hpmem5minFree, hpmem5minUsed, mem5minFree, mem5minUsed, sysUpTime" view = "bandwidth: c5000Bandwidth c5000BandwidthMax, cpu: cpu1min cpu5min hpcpu, memory: hpmem5minFree hpmem5minUsed mem5minFree mem5minUsed, sysuptime: sysUpTime" Any ideas why mcc.py puts them in? --Ingeborg -- Ingeborg Østrem Hellemo -- ingeborg.hellemo(a)uit.no Dep. of Information Technology --- Univ. of Tromsø

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Using NAV as a source for rancid
by Sigurd Mytting 12 Mar '12

12 Mar '12

Hi! We´re looking into using rancid (http://www.shrubbery.net/rancid/) for keeping track of device configuration. I´d like to use the NAV database to build the rancid configuration. Currently I use dump.py, but I need more of the internal NAV data per device, most importantly I need to know the device vendor - cisco, juniper, alteon and so on. Is there an easy way to get a more complete dump of the NAV database? Cheers, -Sigurd

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Device with strange(?) snmp-implementation triggers bug in seeddb
by Ingeborg Hellemo 23 Feb '12

23 Feb '12

Nav version 3.10.2 Django debug is intentionally turned on We need to monitor uptime on our printers and add them to NAV in category OTHER. When we add snmp-enabled SafeCom controllers (<http://www.betasoft.co.uk/safeco m/safecom_ext_controller.htm>) seeddb barfs while talking snmp to the device with ValueConstraintError at /seeddb/netbox/edit/1691/ SingleValueConstraint for 'Version': value 0 not within allowed values: [1] Request Method: POST Request URL: https://nav.uit.no/seeddb/netbox/edit/1691/ Django Version: 1.3.1 Exception Type: ValueConstraintError Exception Value: SingleValueConstraint for 'Version': value 0 not within allowed values: [1] Exception Location: /usr/local/lib/python2.7/site-packages/pysnmp/asn1/constra ints.py in __call__, line 40 Python Executable: /usr/local/bin/python Python Version: 2.7.2 Python Path: ['/usr/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg', '/usr/local/lib/python2.7/site-packages/Cheetah-2.4.4-py2.7-freebsd-8.2-RELEAS E-p5-amd64.egg', '/usr/local/lib/python2.7/site-packages/zope.interface-3.8.0-py2.7-freebsd-8.2 -RELEASE-p5-amd64.egg', '/usr/local/lib/python2.7/site-packages/pyasn1-0.1.2-py2.7.egg', '/usr/local/lib/python2.7/site-packages/python_ldap-2.4.7-py2.7-freebsd-8.2-RE LEASE-p5-amd64.egg', '/usr/local/nav/lib/python', '/usr/local/lib/python27.zip', '/usr/local/lib/python2.7', '/usr/local/lib/python2.7/plat-freebsd8', '/usr/local/lib/python2.7/lib-tk', '/usr/local/lib/python2.7/lib-old', '/usr/local/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/site-packages'] Traceback: File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response 111. response = callback(request, *callback_args, **callback_kwargs) File "/usr/local/nav/lib/python/nav/web/seeddb/page/netbox/edit.py" in netbox_edit 49. if netbox_form.is_valid(): File "/usr/local/lib/python2.7/site-packages/django/forms/forms.py" in is_valid 121. return self.is_bound and not bool(self.errors) File "/usr/local/lib/python2.7/site-packages/django/forms/forms.py" in _get_errors 112. self.full_clean() File "/usr/local/lib/python2.7/site-packages/django/forms/forms.py" in full_clean 268. self._clean_form() File "/usr/local/lib/python2.7/site-packages/django/forms/forms.py" in _clean_form 296. self.cleaned_data = self.clean() File "/usr/local/nav/lib/python/nav/web/seeddb/page/netbox/forms.py" in clean 81. self._check_ro_community(ip, ro_community, cat) File "/usr/local/nav/lib/python/nav/web/seeddb/page/netbox/forms.py" in _check_ro_community 106. version = self.get_snmp_version(ip, ro_community) File "/usr/local/nav/lib/python/nav/web/seeddb/page/netbox/forms.py" in get_snmp_version 135. snmp.get(sysobjectid) File "/usr/local/nav/lib/python/nav/Snmp/pysnmp_se.py" in get 99. rsp.berDecode(answer) File "/usr/local/lib/python2.7/site-packages/pysnmp/asn1/encoding/ber/base.py" in berDecode 296. input = self[key].berDecode(input) File "/usr/local/lib/python2.7/site-packages/pysnmp/asn1/encoding/ber/base.py" in berDecode 202. self._setRawAsn1Value(value) File "/usr/local/lib/python2.7/site-packages/pysnmp/asn1/base.py" in _setRawAsn1Value 169. self._subtype_constraint(value) File "/usr/local/lib/python2.7/site-packages/pysnmp/asn1/base.py" in _subtype_constraint 78. c( self, value ) File "/usr/local/lib/python2.7/site-packages/pysnmp/asn1/constraints.py" in __call__ 40. self.values.keys(), Exception Type: ValueConstraintError at /seeddb/netbox/edit/1691/ Exception Value: SingleValueConstraint for 'Version': value 0 not within allowed values: [1] It is quite possible that the SNMP-implementation on these devices are odd, but seeddb should be able to cope in a more elegant way. Attached is the output of snmpwalk of the device without any fancy flags. Let me know if you need more info. --Ingeborg -- Ingeborg Østrem Hellemo -- ingeborg.hellemo(a)uit.no Dep. of Information Technology --- Univ. of Tromsø

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Announcement: NAV 3.10.2 released
by Morten Brekkevold 21 Feb '12

21 Feb '12

NAV 3.10.2 is now available for download at Launchpad: https://launchpad.net/nav/3.10/3.10.2 This maintenance release contains fixes for the following reported issues, as well as a few other minor tweaks: * LP#258298 (Service alerts aren't closed on service deletion) * LP#392022 (Incorrect IPv4 net address prefix link in Subnet matrix) * LP#744930 (vlan report for closed vlans is empty) * LP#744933 (IP range searches in radius accounting tool ignores timestamp) * LP#912210 (pping crashes when its PID is >= 32768) * LP#912219 (Network explorer incomplete domain names) * LP#920882 (moduleDown alerts reference affected module only as "$module") * LP#920886 (Status page doesn't show modules down) * LP#922566 (SQL syntax errors from getBoksMacs on PostgreSQL 9.1) * LP#922586 (Cisco 1900 switches cause getBoksMacs SNMP walks to go into infinite loops) * LP#922616 (report system behaves badly if accessed without a trailing slash in url) * LP#923641 (Fan outage on HP devices never reported) * LP#925928 (HP Virtual Connect Ethernet modules report crazy MAC addresses, making getBoksMacs spew SQL errors) * LP#925956 (link from organization report to prefix report crashes report page) * LP#928754 (Installing database on PostgreSQL 9 fails) Please report bugs at https://launchpad.net/nav/+filebug :-) Binary packages for Debian will be made available as soon as possible. The Debian package is maintained by Morten Werner Forsbring, on commission From UNINETT. Happy NAVing everyone! -- Morten Brekkevold UNINETT

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Sanitizing table cam in the nav database
by Nik Mitev 14 Feb '12

14 Feb '12

Hello, I have created a pilot installation of NAV, currently handling 16 production switches. It seems that the cam table, holding the MAC addresses seen on the switches is growing very fast and holding large amounts of redundant information, in some cases up to 250 entries per MAC address. I am looking for ways to restrict the amount of history kept, as we only need to know which switch/port a MAC is on, rather than a full history of online/offline status changes. This can of course be done by scripts, I was wondering though is there any relevant built-in functionality already present? Thanks, Nik

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