[Nagios-users] Bandwidth utilization (snmp / cisco router)

[Rainer]

Hello,

I'm trying to retrieve the average bandwidth utilization (percent) on a
cisco router using snmp.
What would be the best way to do this? I've been unable to find a cisco mib
related to bandwidth percentage (only bits/sec)
According to Cisco, the only way to do is this:
http://www.cisco.com/warp/public/477/SNMP/calculate_bandwidth_snmp.html (a
formula using
ifInOctets and ifSpeed)
I know this could be done with cricket / rrdtool, but has anyone succeded
in doing this using check_snmp or some perl script with net::snmp? (ex.
check_traffic_percent with parameters for hostaddress, interface number,
community string, and warning/critical percent levels)

Thanks in advance.

Rainer Alves
Unisys Brazil

[Tedman Eng]

Look into using apan.
http://apan.sourceforge.net

The net-usage example can be extended with cisco's formula. HP Openview
also gives a similar formula to calculate bandwidth (as a percentage of the
interface's max rate). The apan plugins are written in shell script, so
should be easy to modify. If it works well, maybe contribute the changes
back to the apan project :)

Cheers

Post by Rainer
Hello,
I'm trying to retrieve the average bandwidth utilization (percent) on a
cisco router using snmp.
What would be the best way to do this? I've been unable to find a cisco mib
related to bandwidth percentage (only bits/sec)
http://www.cisco.com/warp/public/477/SNMP/calculate_bandwidth_snmp.html (a
formula using
ifInOctets and ifSpeed)
I know this could be done with cricket / rrdtool, but has anyone succeded
in doing this using check_snmp or some perl script with net::snmp? (ex.
check_traffic_percent with parameters for hostaddress, interface number,
community string, and warning/critical percent levels)
Thanks in advance.
Rainer Alves
Unisys Brazil
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Post by Rainer
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[Rainer]

Hello Jeyri,

That's exactly what I was looking for, thanks.
I didn't find it earlier because it isn't included with nagios-plugins.
This one should be included at least in the contrib dir.
Adrian (the script author), just wanted to let you know that you forgot to
include the actual perl script in version 0.91b (I'm using the one from 0.90b).
By the way, your site and http://www.nagios.org/download/extras.php only
list v0.90b... are you publishing the script somewhere else? Maybe you
could share this with the rest of us, since it looks very promising.

Regards,
Rainer Alves
Unisys Brazil

Hi,
I´m using the check_traffic plugin, and this run very well.
Jeyri

Post by Rainer
Hello,
I'm trying to retrieve the average bandwidth utilization (percent) on a
cisco router using snmp.
What would be the best way to do this? I've been unable to find a cisco
mib related to bandwidth percentage (only bits/sec)
http://www.cisco.com/warp/public/477/SNMP/calculate_bandwidth_snmp.html
(a formula using
ifInOctets and ifSpeed)
I know this could be done with cricket / rrdtool, but has anyone succeded
in doing this using check_snmp or some perl script with net::snmp? (ex.
check_traffic_percent with parameters for hostaddress, interface number,
community string, and warning/critical percent levels)
Thanks in advance.
Rainer Alves
Unisys Brazil