[dns-operations] All dual-stack DNS servers - any problem with it?

[Ondřej Surý]

Olivier Guillard / AFNIC píše v St 16. 05. 2007 v 15:30 +0200:
> Hi Ondrej,
> 
> Will the size of DNS responses to .cz queries
> still fit in 512 octets ?

According to my calculations and test with bind9 and nsd it should and
we should be able to add two more before we reach the limit.  If I am
miscalculating something lemme know.

I used http://www.rfc1925.org/root.zone as base for my calculations.

--cut here--
* Current state (A.NS - F.NS; E.NS is only IPv4) *
;; MSG SIZE  rcvd: 359

* Current state (A.NS - F.NS; full dual stack): *
;; MSG SIZE  rcvd: 387

* +1 NS (A.NS - G.NS; dual stack) *
;; MSG SIZE  rcvd: 447

* +2 NS (A.NS - H.NS; dual stack) *
;; MSG SIZE  rcvd: 507

--cut here--

-- 
 Ondřej Surý
 technický ředitel/Chief Technical Officer
 -----------------------------------------
 CZ.NIC, z.s.p.o.  --  .cz domain registry
 Americká 23,120 00 Praha 2,Czech Republic
 mailto:ondrej.sury at nic.cz  http://nic.cz/
 sip:ondrej.sury at nic.cz tel:+420.222745110
 mob:+420.739013699     fax:+420.222745112
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