[mrtg] Re: No data for some interfaces

Peter P. Benac ppbenac at emacolet.com
Fri Dec 10 17:06:52 MET 2004


What type of device are we talking about here?  If these devices have
interfaces that are constantly starting up and shutting down like the modems
in a Cisco Access Router then updating your configuration once a week is not
enough.

By standard ifIndexes are not supposed to be reused; however, this causes
havoc on Management Software that relies on the ifIndex.  If this is a Cisco
Device configuring the device with "snmp server ifIndex persist" (12.1) or
set snmp ifindex persist" (6.x) should help.   

Regards,
Pete
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-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch] On
Behalf Of XiaoHui Xu
Sent: Friday, December 10, 2004 07:54
To: mrtghelp
Subject: [mrtg] No data for some interfaces


We're running MRTG 2.10.11 on Solaris 8.  There are
always many interfaces showing nothing, never getting
data.  I checked the log file.  It shows error
repeatly for those infterfaces, "Received SNMP
response with error code
error status: noSuchName
index 2 (OID: ...)"

I use snmpget to query those interfaces, get failed. 
It looks like those interfaces not existing.

I update configuration files in crontab once a week. 
How can I avoid getting those interfaces(not existing,
or never getting data).  Thanks in advance.


		
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