Re: [Devmon] 10 Gigabit Ethernet Interfaces?

[Joshua K. <fo...@tr...>]

You have to modify some of the files in the templates folder to use the
ifHighSpeed oids.  Devmon supports the 64 bit counters but you need to use
the 64 bit counter oids.  Here is some output in the templates I use.

###### OIDS #######
ifName          : .1.3.6.1.2.1.31.1.1.1.1       : branch
ifAlias         : .1.3.6.1.2.1.31.1.1.1.18      : branch
ifHighSpeed     : .1.3.6.1.2.1.31.1.1.1.15      : branch
ifHCInOctets    : .1.3.6.1.2.1.31.1.1.1.6       : branch
ifHCOutOctets   : .1.3.6.1.2.1.31.1.1.1.10      : branch
ifAdminStatNum  : .1.3.6.1.2.1.2.2.1.7          : branch
ifOperStatNum   : .1.3.6.1.2.1.2.2.1.8          : branch

###### Transforms #######
# Create a human-readable ifc speed
ifSpeed_T       : MATH          : {ifHighSpeed} x 1000000
ifHighSpeed_T   : SPEED         : {ifSpeed_T}
# Get bit speed delta (so we dont have to provide custom delta limit)
ifInOps_T       : DELTA         : {ifHCInOctets}
ifOutOps_T      : DELTA         : {ifHCOutOctets}
# Convert our octets delta into bits per second
ifInBps_T       : MATH          : {ifInOps_T} x 8
ifOutBps_T      : MATH          : {ifOutOps_T} x 8
# Make some easily readable speed variables
ifInSpeed_T     : SPEED         : {ifInBps_T}
ifOutSpeed_T    : SPEED         : {ifOutBps_T}
# Now determine our percentage load, based on traffic and ifc speed
ifInLoad_T      : MATH          : ({ifInBps_T} / {ifSpeed_T}) x 100
ifOutLoad_T     : MATH          : ({ifOutBps_T} / {ifSpeed_T}) x 100
# Create an alias in a bracketed box, or nothing if alias is blank
ifAliasBox      : REGSUB        : {ifAlias} /(\S+.*)/ [$1]/

####### Message #######
<b>Interface error rates:</b>
Input load:  yellow={ifInLoad_T.thresh:yellow}%,
red={ifInLoad_T.thresh:red}%
Output load: yellow={ifOutLoad_T.thresh:yellow}%,
red={ifOutLoad_T.thresh:red}%
TABLE: noalarmsmsg,rrd(DS:ds0:ifHCInOctets:COUNTER;
DS:ds1:ifHCOutOctets:COUNTER)
Interface Name|Interface Speed|Rate in (load %)|Rate out (load %)
{ifName}{ifAliasBox}|{ifHighSpeed_T}|{ifInLoad_T.color}{ifInSpeed_T}
({ifInLoad_T}%){ifInLoad_T.errors}|{ifOutLoad_T.color}{ifOutSpeed_T}
({ifOutLoad_T}%){if
OutLoad_T.errors}

-Josh


-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Christian
Hammers
Sent: Tuesday, June 17, 2008 12:13 PM
To: dev...@li...
Subject: [Devmon] 10 Gigabit Ethernet Interfaces?

Hello

We have some 10 GigE Interfaces here which are shown in if_load as only
"4.29 Gbps" with a usage of 106% :)

This is probably because the MIB defines ifSpeed as Gauge32 but devmon does
not follow the recommendation to use IF-MIB::ifHighSpeed in case the MAXVAL
of 4294967295 is returned.

 # snmptranslate -Td IF-MIB::ifSpeed
        ... If the
            bandwidth of the interface is greater than the maximum value
            reportable by this object then this object should report its
            maximum value (4,294,967,295) and ifHighSpeed must be used
            to report the interface's speed.
        ...

bye,

-christian-

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