[mrtg] Re: (mrtg) Re: VLAN IN/OUT is Blank

[Andres.Tong at jud.ca.gov]

Martin,
I've looked at the archives and people have attempted to answer the same
question about getting VLAN information on a Catalyst6000, but it appears
that Cisco hasn't really worked on this "problem". Here is an example:

Jonas Nylund wrote:
> I have a catalyst 6509 with a MFSC on my net and i m trying to
> monitor bandwith for every VLAN i have on it, but the bandwidth
> curves seam to show to low values.

Forget it; the MSFC will only deal with the first packet in the
stream. The VLAN counters on the swtich itself are useless as
they doesn't increment. Cisco TAC would not admit this to be a
bug. You could either bug Cisco about this and wait or make a
config file that sums every port in the VLAN. The latter is not
very accurate as inter-VLAN traffic will also be measured.

If you find a better way; please tell me. :)

--
Bjorn Nordbo  -  IP Development  -  Nextra Norway



-----Original Message-----
From: Martin Rheumer <martinr at hotkey.net.au> at Internet
Sent: Wednesday, March 20, 2002 9:19 AM
To: Tong, Andres; mrtg at list.ee.ethz.ch at Internet
Subject: [mrtg] Re: VLAN IN/OUT is Blank



Peoples,

This looks the same as my question about the 6500 series switches
that do the same thing. They get commented out of a cfgmaker run
and then have maxbytes as 0.
There was a cfgmaker.cisco a long time ago anyone got any pointers
to this ?

Thanks

Martin

At 02:04 PM 3/19/02 -0800, Andres.Tong at jud.ca.gov wrote:
>
>Hello,
>When I run Cfgmaker against my Catalyst5500, I get good clean IN/OUT
results for
>individual ports but
>I cannot get IN/OUT for my VLANS. Here is a sample from MRTG.CFG for
>IFIndex=179, which is my VLAN3. Will MRTG 2.7.5
>extract and graph IN/OUT Bytes for VLANS? It has set the MaxBytes to Zero.
 Can
>someone help?
>
>########
>######## This Interface is one of the following
>######## - administratively not UP
>######## - it is in test mode
>######## - it is a softwareLoopback interface
>######## - has a unrealistic speed setting
>######## It is commented out for this reason.
>########
>#
># Target[172.20.0.55.179]: 179:877JDeanisnotgone!@172.20.0.55
># MaxBytes[172.20.0.55.179]: 0
># Title[172.20.0.55.179]: S5B4F3A1 (): VLAN 3
># PageTop[172.20.0.55.179]: <H1>Traffic Analysis for VLAN 3
>#  </H1>
>#  <TABLE>
>#    <TR><TD>System:</TD><TD>S5B4F3A1 in S5B4F3A1</TD></TR>
>#    <TR><TD>Maintainer:</TD><TD>JC AOC HELP DESK</TD></TR>
cut...

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