[mrtg] Issue with a Cisco 6509

Jim Ruddell Jim.Ruddell at businessdecision.com
Fri Sep 22 20:15:55 MEST 2006

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I'm having a problem with MRTG and a recent IOS upgrade to my Cisco
6509. MRTG had been running flawlessly for about a year. Since the
upgrade, MRTG is collecting nearly the same bandwidth use for all the
6509s interfaces and it's entirely wrong. Other devices I'm trending
report what I expect.


I've upgraded to the latest MRTG release. In my config file I'm polling
by IP address rather than interface number (I've been burned by reboots)
and, as a test, I reverted to using the interface number but I get the
same incorrect results.=20


Our Cisco support team tells me the upgrade should not have caused a
problem and that the Cisco tools report proper use. Anyone have any


Example of one target in my config file:


### Interface 3 >> Descr: 'FWSM-Firewall-'pyn'-interface' | Name: '' |
Ip: '' | Eth: '' ###

### The following interface is commented out because:

### * has a speed of 0 which makes no sense


Target[pyn_vlan]: / at

SetEnv[pyn_vlan]: MRTG_INT_IP=3D""

MaxBytes[pyn_vlan]: 12500000

Title[pyn_vlan]: Traffic Analysis for PYN -- FWSM.us.mi-services.com

PageTop[pyn_vlan]: <H1>Traffic Analysis for PYN --


   <TR><TD>System:</TD>     <TD>FWSM.us.mi-services.com in </TD></TR>

   <TR><TD>Maintainer:</TD> <TD>"Jim Ruddell"</TD></TR>


   <TR><TD>ifType:</TD>     <TD>ethernetCsmacd (6)</TD></TR>

   <TR><TD>ifName:</TD>     <TD></TD></TR>

   <TR><TD>Max Speed:</TD>  <TD>100.0 Mbits/s</TD></TR>

   <TR><TD>Ip:</TD>         <TD> ()</TD></TR>








James Ruddell
Systems and Network Engineer, North America=20

Tel  +1.610.230.2500 x2565=20

Fax +1.610.230.2512  =20

Mobile 610.906.5522=20
james.ruddell at businessdecision.com
<mailto:james.ruddell at businessdecision.com>=20


900 West Valley Road, Suite 900

Wayne, PA 19087 USA

Business Intelligence | Customer Intelligence | e-Business | ERP | Life
Sciences |Managed Services | Management Consulting

www.businessdecision.com <http://www.businessdecision.com/>=20

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