[mrtg] MRTG and NORTEL Passport 8600 problem

[Carlos Fuentes Bermejo]

Heya all,

We are using MRTG (2.16.2) for monitoring our NORTELs Passport 8600,  
at the moment they have several ethernetCsmacd interfaces, handling  
several 10Gbs and 1Gbs links. Since we started monitoring the NORTEL  
switches, we are seeing the statistic flapping up and showing not  
realistic values, suddenly we get 15 Tb of traffic or even more, which  
it's not a real value :-).  We have also to make the config file by  
hand, because when we run the cfgmaker script, we got the following  
warning (running cfgmaker printing the debug information):

--base: check for HighspeedCounters failed ... Dropping back to V1

Besides cfgmaker was not able to make a right config file, because the  
10Gbs links were not configured properly:

  Created by
# /usr/local/mrtg/bin/cfgmaker --snmp-options :::::2 XXXXX at XXXXX -- 
output=XXXXX


### Global Config Options

#  for UNIX
# WorkDir: /home/http/mrtg

#  or for NT
# WorkDir: c:\mrtgdata

### Global Defaults

#  to get bits instead of bytes and graphs growing to the right
# Options[_]: growright, bits

EnableIPv6: no

######################################################################
# System: GW-Nacional2
# Description: MERS-8610 (4.2.2.0OE)
# Contact: www.nortel.com - Select support and training for on-line  
help and assistance
# Location: 4655 Great America Parkway,Santa Clara,CA 95054
######################################################################


### Interface 128 >> Descr: 'XXXXX' | Name: 'XXXXX' | Ip: '' | Eth:  
'XXXXXX' ###

Target[XXXX]: 128:XXXX at XXXX.XXXXX.XX:::::2
SetEnv[XXXXX]: MRTG_INT_IP="" MRTG_INT_DESCR="XXXXX"
MaxBytes[XXXX]: 176258176
Title[XXXXX]: Traffic Analysis for 128 -- XXXXX
PageTop[XXXXX]: <h1>Traffic Analysis for 128 -- XXXX</h1>
		<div id="sysdetails">
			<table>
				<tr>
					<td>System:</td>
					<td>XXXX</td>
				</tr>
				<tr>
					<td>Maintainer:</td>
					<td>www.nortel.com - Select support and training for on-line help  
and assistance</td>
				</tr>
				<tr>
					<td>Description:</td>
					<td>XXXXX</td>
				</tr>
				<tr>
					<td>ifType:</td>
					<td>ethernetCsmacd (6)</td>
				</tr>
				<tr>
					<td>ifName:</td>
					<td>Slot 2, Port 1</td>
				</tr>
				<tr>
					<td>Max Speed:</td>
					<td>176.3 MBytes/s</td>
				</tr>
			</table>
		</div>


As you can see the max speed is 176MBytes/s = 1401MBits/s, which it's  
wrong, because it's a 10Gbits link. We changed it by hand to the right  
values, and started monitoring the links.

Do anyone knows why MRTG are getting the wrong values, which are  
producing the wrong statistic, why the cfgmaker are not working ok?

Many thanks in advance,
Carlos

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