> negative caching is like response rate limiting: we can't operate the > network at current or projected scale without them. the incorrectness > (specifically: the incoherence) we allow due to caching (of both > positive and negative elements) was a trade-off for scale. if you want a > different trade-off, please propose one, being aware that i'll be > reviewing its scaling properties.
I agree. I was simply pointing out that you are being inconsistent: you demand that the view of the DNS be consistent when an NXDOMAIN is cached, but do not further demand that NXDOMAINs not be cached in order to promote consistency. A cached NXDOMAIN will prevent a more current view of the network from being seen, if the missing domain name comes into existence during the lifetime of the cached NXDOMAIN. > note that i'm not requiring that you actually purge, only that you > effectively purge. i don't know if that changes your appreciation. Unfortunately it does not. I haven't heard an argument that makes me understand why it is important that we make this a normative requirement. > i cracked a smile at about 2am. thanks for that. :) _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
