Re: [Devmon] if_err stats

[Buchan M. <bg...@st...>]

On Friday, 27 January 2012 11:28:35 Mario Valetti wrote:
> I'm working on standard, unmodified templates.  In particular with 3750,
> 4948 and 2801 devices.
> 
> 
> Thanks for the advice on the 'multigraphs=disk,if_load,if_err,temp' to
> CGI_SVC_OPTS in hobbitcgi.cfg or
> equivalent'.  It's already a step forward.
> 
> 
> Regarding the thresholds;  in my case, rather than wanting to check error
> packets as a percentage of bandwidth, I want to be alerted if and when an
> error is detected at all.  ¨Perhaps a threshold check with the  "*
> {ifInErrors}"* and "*{ifOutErrors}" *will give me what I need.
> I'll play around with it.


I think you would want to put thresholds on ifInEps and ifOutEps instead?


> > The transforms file on most of the if_err tests includes:
> > 
> > # Get bit speed delta (so we dont have to provide custom delta limit)
> > ifInOps         : DELTA         : {ifInOctets}
> > ifOutOps        : DELTA         : {ifOutOctets}
> > # Convert our octets delta into bits per second
> > ifInBps         : MATH          : {ifInOps} x 8
> > ifOutBps        : MATH          : {ifOutOps} x 8
> > # Do delta transform on all error counters
> > ifInEps         : DELTA         : {ifInErrors}
> > ifOutEps        : DELTA         : {ifOutErrors}
> > # Perform error to traffic percentage calculations
> > ifInErrPct      : MATH          : ({ifInEps} / {ifInBps}) x 100
> > ifOutErrPct     : MATH          : ({ifOutEps} / {ifOutBps}) x 100
> > # Create an alias in a bracketed box, or nothing if alias is blank
> > ifAliasBox      : REGSUB        : {ifAlias} /(\S+.*)/ [$1]/
> > 
> > And the thresholds:
> > # Create thresholds for all the error rate counters
> > # oid name      : color         : limit : Error message
> > 
> > ifInErrPct      : yellow        : 5     : {ifName}{ifAliasBox} - High
> > input error rate ({ifInErrPct}%)
> > ifInErrPct      : red           : 10    : {ifName}{ifAliasBox} - Very
> > high input error rate ({ifInErrPct}%)
> > ifOutErrPct     : yellow        : 5     : {ifName}{ifAliasBox} - High
> > output
> > error rate ({ifOutErrPct}%)
> > ifOutErrPct     : red           : 10    : {ifName}{ifAliasBox} - Very
> > high output error rate ({ifOutErrPct}%)


Regards,
Buchan