Re: Filters and reality

[Apologies for an (almost technical) post from outside NA to NANOG] Hi,

Should we continue to poke holes in our filters to let Sprint's customer's customer routes through, or should we keep trying to explain to the Sprint NOC why their customer's customers could use shorter prefix length announcements?

I suppose it depends on what slope you want the graph at http://www.iepg.org/ops/bgptable.html to have. Regardless of whether the filters are a "good idea" or not, they do tend to limit routing table growth and its implications, if for no other reason than smaller sites are "encouraged" to go to their providers for address space due to fear of being filtered. Regards, -drc