North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: weird BGP cisco-ism? [problem resolved]
> > >> I'd think prefix based filters would be more likely to be correct. >> Since you have to explicitly list what you think you should be announcing >> you protect against having routes you don't expect in your tables and >> against having interactions that cause unexpected routes to get tagged as >> announceable. >> > >OK, so then what do you do with BGP customers? Ideally, you'd be filtering >the ingress advertisements from your customers. Now you have to add those >prefixes to your egress filters as well. > >Using communities to accomplish this is much more efficient and "hands-off". > >-danny > > > You can build your customer BGP filters off data in the IRR. Make it a requirement that BGP customers must keep that information up to date (or do it for them). -- -Chris ([email protected])
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