[mrtg] Re: monitor VLAN with MRTG. Can it be done?

[Steve Godfrey]

But how could you use this to monitor VLAN usage, this link refers to CAM entries on that particular VLAN.

>>> "Taylor Lewick" <Taylor.Lewick at us.fortis.com> 02/25/02 05:57pm >>>

Thanks Rich, here is what I found on CISCO's website
snmpwalk read_community at vlan_number .1.3.6.1.2.1.17.4.3.1.1 ipaddress 
IE snmpwalk public at 1 .1.3.6.1.2.1.17.4.3.1.1 ipaddress  (that OID is part of the CISCO bridge mib, here they were looking at Catalyst Switches)
I did a search for snmpwalk vlan on Cisco's Website...

Taylor Lewick
Unix System Administrator
Fortis Benefits
816 881 6073

"Help Wanted.  Seeking Telepath..."
"You Know where to apply."

>>> Rich Adamson <radamson at routers.com> 02/25/02 09:41AM >>>

Yes it is. Dig around on Cisco's web site and you'll find a technical paper
that describes how to do it. It is a real hokey; simply add the vlan number
onto the end of the community string. (That's not a typo either!) I forget
whether it requires a dash inbetween the community string and vlan number.

You can't do a MIB walk either without making the same community string change.

Rich
------------------------
> Henrik.Malmgren at etu.ims.se writes:
> >Hi!
> >Is't possible to monitor VLAN on a switch (cisco in this case) with MRTG?
> >if
> >i run cfgmaker the output comments out the vlan.
> > 
> > 
> >
> >Henrik Malmgren 
> >
> >  ___
> 
> What are you tryiing to monitor? Total traffic in the switch? Just traffic
> on a particular Vlan, if the switch is set to multiple vlans?
> 
> George Harris


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