We upgraded from 4.7.3 release and we are not sure that all links were correct before upgrading (newbies to NAV).
Our DNS infrastructure it is a bit untidy. What could we do? ( for instance, stopping some jobs?)
As our environment it is not a pure one we have both protocols enabled (CDP & LLDP). However the most problems are in Cisco Environment. Some discovered issues:
- Although in the NetMap view there is a switch connected to a pair of Cisco (HSRP), the IP Device Info (Neighbors Tab) only see one of these link.
- We deleted one device from BBDD and later created it again (waiting to be discovered properly). Unfortunately now the device shows none of the two links.
Thank you in advance.
-----Mensaje original----- De: Morten Brekkevold [mailto:firstname.lastname@example.org] Enviado el: lunes, 22 de enero de 2018 14:50 Para: email@example.com CC: firstname.lastname@example.org Asunto: Re: Missing some uplinks
On Thu, 18 Jan 2018 11:55:29 +0100 email@example.com wrote:
We updated our installation to 4.8.3 (Real Topology: some C2960 Cisco connected to a pair of Nexus)
NetMap does not work properly (missing some uplinks). We edit IP Device info and, although NAV sees there links as unrecognized and after having added those unrecognized neighbors to NAV. Connections do not appear.
Remote Name (as identified by NAV in unrecognized neighbors) is different from Sysname in the Seed Database (obtained from host file).
Any suggestions? Is it better not to use host file? Does anyone work with Nexus?
a few general questions to get my bearings:
1. You mention upgrading to version 4.8.3. Did the problems appear only after the upgrade? If so, which version did you upgrade from?
2. Do you have a DNS infrastructure, where your network device names are properly maintained?
NAV expects you to maintain a tidy DNS catalog, and does not properly support using host files, AFAIK. If DNS and your devices disagree on what their names are, you may experience problems, especially if NAV needs to resort to name matching for discovery protocol entries.
3. Is LLDP enabled throughout your network? Do you also have CDP enabled? I find it is generally not a good idea to mix the two (and CDP only makes sense in a pure Cisco environment).
-- Morten Brekkevold UNINETT
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