nanog mailing list archives
pull-ups on route annoucements to deter route flap
From: Alan Barrett <barrett () daisy ee und ac za>
Date: Mon, 24 Apr 1995 15:58:54 +0200 (GMT+0200)
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)
Current thread:
- Re: Has PSI been assigned network 1?, (continued)
- Re: Has PSI been assigned network 1? Sean Doran (Apr 24)
- Re: Has PSI been assigned network 1? Michael F. Nittmann (Apr 23)
- Re: Has PSI been assigned network 1? Vadim Antonov (Apr 23)
- Re: Has PSI been assigned network 1? Sean Doran (Apr 23)
- IAP Guidebook - help from the big guys Rich Roth (Apr 26)
- Re: Has PSI been assigned network 1? Hank Nussbacher (Apr 23)
- Re: Has PSI been assigned network 1? Randy Bush (Apr 23)
- Re: Has PSI been assigned network 11111111? Paul A Vixie (Apr 24)
- Re: Has PSI been assigned network 1? Eric M. Carroll (Apr 24)
- Re: Has PSI been assigned network 1? Michael F. Nittmann (Apr 24)
- pull-ups on route annoucements to deter route flap Alan Barrett (Apr 24)
- Re: Has PSI been assigned network 1? Karl Denninger, MCSNet (Apr 24)
- Re: Has PSI been assigned network 1? Andrew Partan (Apr 24)
- Why Vadim likes statics bmanning (Apr 24)
- Re: Why Vadim likes statics Eric M. Carroll (Apr 24)
- BGP vs. static routing (Re: Why Vadim likes statics) Sean Doran (Apr 24)
- Re: BGP vs. static routing (Re: Why Vadim likes statics) bmanning (Apr 25)
- Re: BGP vs. static routing (Re: Why Vadim likes statics) Paul A Vixie (Apr 25)
- Re: Has PSI been assigned network 1? Randy Bush (Apr 23)
- Re: Has PSI been assigned network 1? Curtis Villamizar (Apr 24)