North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical pull-ups on route annoucements to deter route flap
Randy Bush wrote: > To move along an other tangent... What is the general wisdom on putting > pull-ups on route annoucements to deter route flap? I don't know about the general wisdom, but Internet Africa (not a North American operator) uses pull-ups for all routes that belong to single-homed customers. We figure that there's no reason for BGP speakers around the world to hear the flap when one of our single-homed customers drops a route. > Hence, you won't get the !H until you get to our border. > Los pobre packitos will travel all the way and then get whacked. Seems > to subvert one interpretation one could read into the intent of BGP. I don't have stats, but I don't worry about the added load. TCP backs off pretty quickly when it figures out that the packets aren't getting through. Poorly-behaved UDP applications are another story, of course, but we hope there's not too much of that. --apb (Alan Barrett)
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