I don’t know if its related, but we have the same issue on our installation. However, it seems to be two separate issues. The Cricket “Bandwidth” graphs are blank on nearly all of our equipment. This is likely because the device itself doesn’t support the specific OID (I don’t know if it’s a Cisco proprietary OID or a universal one) However, I see perfect graphs in switch-ports, router-ports and CPU/Temp – but the network chart thingie will still show grey lines. I’ve tried to investigate this without getting any further. Personally its not really an important feature, but it would be a nice eyecandy thing to have sorted out.

Best regards,

Vidar S

From: Audun Einangen [mailto:audun@hammerfest.kommune.no]
Sent: 21. august 2009 14:50
To: nav-users@uninett.no
Subject: Bandwith usage not showing on some Cisco switches.

Hi.

This may be a stupid question, but I am experiencing a strange problem in NAV, where only about a third of the links on our core router shows up with any usage, the rest comes up as if there is no traffic there at all.  One other switch on the network shows usage towards all other switches, but the rest of the switches on our network shows no usage whatsoever.    The easiest way to see this, is when I look at the network map, and find most of the links gray, while some are green.  This is a fairly new install (only a few days old,) so I may have missed some of the documentation, but I can’t seem to find anything on this problem.  

Our goal is, among other things, to monitor for any congestions, so the map could prove useful for those purposes.  

Any ideas of what I might be doing wrong?

Mvh,

Audun Einangen

Hammerfest Kommune, IT-avdelingen