There are Cacti Templates available to monitor the CF5000 devices via SNMP.
These templates are not available on the bto.bluecoat.com web site.
Please contact Blue Coat Support or your Blue Coat SE who can send this template to you to ensure your Cacti server is reporting ont he corrects OIDs and that monitoring is being performed successfully and correctly.
Please Note:
The Template is not managed and supported by Blue Coat, was written as a base template. Can be altered as required.