Creating Graph for Strings with Multiple Values

[karlaldwin]

Version 0.8.8h

I am creating graph for our Modem CPU utilization but Im having trouble plotting the data into graph getting -nan. I suspect because of the return value is string and have multiple value rather than integer.

[karl@netmon1b ~]$ snmpwalk -v 2c -c xxxxxxxxxx xxxxxxxxxxxxx .1.3.6.1.4.1.5835.5.2.100.1.9.3.0
SNMPv2-SMI::enterprises.5835.5.2.100.1.9.3.0 = STRING: " 10% (cpu1: 11% cpu2: 8%)"

I am quite new in using cacti and dont have scripting and programming experience. Can someone help me how to graph this in the easiest way possible. Thanks