Monitoring current traffic per VIP

That's one way to solve, but not required. Check your cacti version number here: http://docs.cacti.net/howto:determine_cacti_template_version

 

 

Once you have that, you can modify the hash in the template with a little vi trickery: :%s/\(hash_..\)\(YYYY\)/\1XXXX/g

 

 

where YYYY is the template version, and XXXX is your version.