I-D ACTION:draft-ietf-dnsind-defupd-00.txt

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A New Internet-Draft is available from the on-line Internet-Drafts 
directories. This draft is a work item of the DNS IXFR, Notification, and 
Dynamic Update Working Group of the IETF.                                  

       Title     : Deferred Dynamic Updates in the Domain Name System 
                   (DNS DEFUPD)                                                 
       Author(s) : P. Vixie
       Filename  : draft-ietf-dnsind-defupd-00.txt
       Pages     : 9
       Date      : 05/23/1996

Not all applications that perform dynamic updates using the protocol 
specified in [UPDATE] want their updates applied immediately.  A case in 
point is [DHCP], wherein the DHCP lease time should control the lifetime of
associated DNS data even if the DHCP client or server is not available at 
the time the DHCP lease expires.                                        

The essence of this proposal is that DNS Dynamic Updates should be 
deferrable for some time delay period, after which they will be executed 
normally.  Furthermore, RRs added or updated by a deferred update can have 
expiration times specified for them, as enforced by the automatic Dynamic
Updates.  Automatic serial number changes (as in [UPDATE]), dynamic zone 
slave notification (see [NOTIFY]) and incremental zone transfer (see [IXFR])
will jointly see to it that the zone changes are propagated with expedience.    

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