A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Domain Name System Operations Working Group of the IETF.
Title : DNS Referral Response Size Issues
Author(s) : Paul Vixie
Filename : draft-ietf-dnsop-respsize-14.txt
Pages : 14
Date : 2012-05-09
With a mandated default minimum maximum UDP message size of 512
octets, the DNS protocol presents some special problems for zones
wishing to expose a moderate or high number of authority servers (NS
RRs). This document explains the operational issues caused by, or
related to this response size limit, and suggests ways to optimize
the use of this limited space. Guidance is offered to DNS server
implementors and to DNS zone operators.