Hi, Thanks very much for that document. It is very useful for the community. I have only 2 comments concerning Appendix A: 1) Among the 39 mentioned name servers, why are there duplicates (same names with the same addresses, see for example d.dns.jp (3 times) or ns.nic.ir (2 times) ? 2) As far as I know, the IPv4-mapped IPv6 addresses are irrelevant in this context (see *.dotdm.net et *.netdns.com), do these name servers have regular (2001 or 3ffe) IPv6 addresses ? On the other hand, I would like to share with you the follwing document which focuses on DNS response size calculation (from root servers) and name compression for TLDs with IPv6 taken into account. A part of the document sections deal with the general case, so they can apply to any TLD. The remaining sections contain calculations for .FR and may be easily extended to any other TLD. If you have any comment, suggestion or correction, don't hesitate to send them to: ipv6tech@nic.fr. Please find the document at: http://w6.nic.fr/dnsv6/dns-resp-size-and-name-compression Regards, Mohsen. On 20 Oct, Ronald van der Pol wrote: | At RIPE 46 we presented measurements about the effects of adding | IPv6 glue to the root zone. | | As promised, we made more measurements and have written a document: | http://www.nlnetlabs.nl/ipv6/publications/v6rootglue.pdf | | rvdp