Re: using IRR tools for BGP route filtering

I agree with this, and have seen the document, and have worked for large providers that performed prefix filtering on customers long before IOPS existed. However, if every ISP performed prefix-based filtering between one another, it'd be improved "a lot more". I recall more than a few instances when providers inadvertently broke other providers customers by "mis-advertising" prefixes. And if every ISP performed SA verification between one another (presumably with the same filters) it would again be improved "a lot" more. -danny

If every ISP does prefix based filtering on its downstream customers, the integrity of the Internet routing system will be improved a lot. The document below proposes such a model:

http://www.iops.org/Documents/routing.html