[c-nsp] 6506 reporting incorrect vlan traffic stats via SNMP.

R.L. Nevot r.nevot at gmail.com
Sat Sep 23 17:11:46 EDT 2006


We are performing snmp without problems, at least not noticed it.
Have you did some test with a 'real time' snmp tool (1 second
pooling?) like solarwinds or router ip console... ?

On 9/23/06, Tassos Chatzithomaoglou <achatz at forthnet.gr> wrote:
> We have the same behaviour on all our L2/L3 switches and i think this is excactly what happens.
>
> Tassos
>
>
> Dean Smith wrote on 23/9/2006 10:18 μμ:
> >  > have set two graphing packages (Cacti & RTG) polling the vlan interfaces
> > ever 30 seconds, and the correct traffic is simply not being reported.  For
> > example, a vlan that typically has 5mbps inbound consistentally is only
> > reporting 40kbps.
> >
> > I've seen this often in the past on my 6500s. I assumed the counters weren't
> > picking up layer3 swithced traffic - and what I was seeing was actually only
> > those packets being initially routed etc by the MSFC. Never proved it so I
> > could be wrong.
> >
> > Dean
> >
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