tcp limitations
Guy Pazi
guy at wanwall.com
Tue Jun 12 14:26:47 UTC 2001
> > Will a root
> server answer 10k
> > TCP queries/sec?
>
> No. Absolutely not. 99.9999999% of all DNS queries are purely
> UDP, although this percentage is reducing as more and more sites make
> use of things like DNSSEC, having too many MXes advertised, etc...
> and cause truncation of the UDP response, which should then be
> restarted with TCP.
But, lets say for a minute, all queries were tcp. What ~ number of
queries/sec will a root name server support drop down to, from the 2-5k udp
queries/sec?
Thanks
Guy
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