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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: Lazy Engineers and Viable Excuses
During my tenure at a medium-sized ISP, I found that one of the more painful experiences was trying to assist small or first-time BGP customers in setting themselves up in the IRR and registering their routes. While I would take issue with some posters' comments that maintaining edge filters does not scale, I would certainly support the statement that providing IRR 101 tutorials definitely doesn't scale. For smaller sites, I feel that explicit permit prefix filters are the way to go. At the same time a filter is updated, if the customer was assigned space from one of our blocks, off go both a SWIP and a proxy IRR object. If the space is PA space from another provider, we'd submit a route object after verifying the assignment. In the case of PI space, we *might* take the trouble to give the IRR 101 training if the customer seemed trainable. Somewhere in the growth curve along which a customer increases in both size and credibility, I think there is a case for migrating them from prefix filtering to as-path filtering with a prefix limit. While not preventing any possibility of an illegitimate announcement, it does prevent a 7007 type incident along with scalability.
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