In article <gtr212$220...@sf1.isc.org>, Danny Mayer <ma...@gis.net> wrote:
> Peter Dambier wrote: > > Hello Martin, > > > > since a major outage at my provider, dtag.de or Deutsche Telecom AG, I have > > trouble > > with f.root-servers.net. Sometimes "dig ... +vc" does help me to see > > f.root-servers.net. > > > > The real problem is anycast. With udp it behaves different than with tcp. > > That's nonsense. anycast is invisible to this. anycast doesn't care if > it's udp or tcp, it only deals with the routing tables to determine > where to send the request packet. It's not quite nonsense, only very nearly. One can imagine a corner case where a router has equal cost paths to more than one anycast instance and that same router is set up to do per-packet load balancing, then it might not be possible to set up a TCP connection to that anycast address through that router. This is likely to be a rare occurrence. Sam _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
