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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: .ORG problems this evening
On Thu, 18 Sep 2003, E.B. Dreger wrote: : TV> Date: Thu, 18 Sep 2003 10:05:15 -0400 (EDT) : TV> From: Todd Vierling : : TV> DNS site A goes down, but its BGP advertisements are still in : TV> effect. : : Or are they? I couldn't know for sure from some sites, but traceroutes sure got there. That would imply that (at their end) the advertisements were still up. BGP has no way to know that an internal network problem occurred. If someone mistakenly tripped over a network cable that disconnected DNS clusters from a router, how would the router know to drop anycast advertisements? (Sure, you could run zebra on the cluster. But what about if the name server SEGVs? There's a lot of possible scenarios....) -- -- Todd Vierling <[email protected]> <[email protected]>
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