Monitoring Cisco Routers errors?

[Forsyth, Austin]

you've missed our point - that counter may have a value that is 0 as seen
through the IOS, relative to the time the router knows that counter was
reset, but the value of the counter is most likely not 0. it doesn't reset
the value to 0 at a counter reset, it resets the time.
 
check out the values sometime, they aren't absolute.

-----Original Message-----
From: Jon Lyons [mailto:jlyons30 at yahoo.com] 
Sent: Thursday, March 20, 2003 4:00 PM
To: Forsyth, Austin
Cc: nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] RE:Monitoring Cisco Routers errors?



For the type of devices I'm looking to monitor(cisco routers, w/ gig & fast
e) there should be NO errors. If there's a value other than 0 we've got
problems... :) 


  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 3058000 bits/sec, 1202 packets/sec
  5 minute output rate 107000 bits/sec, 65 packets/sec
     83710206 packets input, 4235826135 bytes, 0 no buffer
     Received 160 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 watchdog, 67702 multicast
     0 input packets with dribble condition detected
     7032457 packets output, 2132869625 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier       



 "Forsyth, Austin" <Austin.Forsyth at Caminus.com> wrote: 


oh goodness. someone else mentioned the specific OIDs for interface error
counters and how you have to run a trend on those numbers to actually do
something with them.
 
you may want to look into the way those counters are used. some have an
upper limit of four billion and just keep counting until they roll over. the
cisco IOS interprets the number based on a time delta and then spits out an
error rate. you can't really walk the tree, because the counters aren't
absolute values.

-----Original Message-----
From: nagios-users-admin at lists.sourceforge.net
[mailto:nagios-users-admin at lists.sourceforge.net] On Behalf Of Jon Lyons
Sent: Thursday, March 20, 2003 3:36 PM
To: Subhendu Ghosh
Cc: 'Nagios Users (E-mail) '
Subject: Re: [Nagios-users] RE:Monitoring Cisco Routers errors?



Ok, not the hardest part, I was looing for something that would be able to
walk the oid tree/interfaces looking for errors. I've got a lot of
interfaces on lots of routers, make a specific check_snmp request for each
oid is a lot of work.. :) 



 Subhendu Ghosh <sghosh at sghosh.org> wrote: 


OIDs are easy part - rfc 1573 (IF-MIB) for base set 

look for the transport mibs for specific line type (DS1/E1, DS3/E3, SONET, 
etc) 

-sg


On Thu, 20 Mar 2003, Jon Lyons wrote:

> 
> The OIDs are the hard part.. :) 
> Sean Knox wrote:I would imagine you could do this via check_snmp. I don't
know the OIDs 
> off hand, sorry.
> 
> Sean
> 
> Jon Lyons wrote:
> 
> > Hi,
> >
> > Is there a plugin that currently checks for interface errors? CRC, 
> > OverRuns, Collisions,etc,etc?
> >
> > THanks.
> >

--





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