When an ISP should run their own IRR for customers

I do not think running your own IRR is worth it for 100 customers. Unless it's something you want to do for your own experience and knowledge. Maintain the objects under your maintainer for customers who, for whatever reason, are unable to maintain their own objects. Just make sure your internal processes address deleting objects when customers leave. Deleting seems to be something folks forget about.

Courtney Smith

() ascii ribbon campaign - against html e-mail
/\ www.asciiribbon.org - against proprietary attachments