Doing math on SNMP values before storing in RRD

[malgoe]

Hi,

I'm using Cacti to monitor a bunch of network probes (Accedian EtherNID and MetroNID) and built my own templates for this, which is working fine. I do have one problem:

Delay values are returned in micro-seconds and percentage values (i.e. packet loss) is returned in hundreds of a percent. I would like to change these values (micro-seconds to milli-seconds and hundreds of a percent to percent) before storing them. I've been loking for some way to do math with regexp in the query xml file, but I have had no success so far.

Could someone help me to come up with a solution?

(The reason for wanting to do this is that, i.e. a delay of 10mS is now displayed as "10k-uS". Not particurlarly pretty )

[BSOD2600]

Alternatively, you keep the values returned via SNMP and instead use a CDEF to apply the appropriate math for the unit conversion. The various traffic graphs already do this for an example.

[malgoe]

Thank you! That solves my problem perfectly!

[sseepaul]

Do you mind sharing this template? I'd like to monitor some of the NIDs and Nodes we have as well. Also, does your template provide optical light levels from the Accedian devices?

[snasre]

Would you mind sharing the template for Accedian NID


Thanks
Sanket

[hoteldebotel]

Does anyone have a Cacti template for Accedian MetroNID's? Looking to add graphing for my PAA-probes.