I would like to start a job regularly to get the number of recent CRC-errors on specific devices. Is there a way to do this? Just running NetShow with 'sh int counters errors' doesn't give me the appropriate output. Do I possibly have to use a custom script?
I'm using CW LMS 3.0 for Windows
What you want to do will best be accomplished using the upcoming addition to LMS, Health and Utilization Monitor (HUM). HUM is best described as an MRTG-like plug-in for LMS which will allow you to create your own custom pollers then report on those pollers. A HUM demo will be included with LMS starting in December, but will be licensed separately.
In the meantime, CiscoView's Mini-RMON manager can show you CRC information for certain devices (mostly switches), but you cannot run periodic reports.