Re: AXFR over UDP is available

[Masataka Ohta <[e-mail]>]

Edward Lewis wrote:

> http://www.ietf.org/internet-drafts/draft-lewis-axfr-over-udp-00.txt

I'm afraid you completely misunderstand the previous discussion.

First of all, you failed to convince us that changes to enable
AXFR over UDP is desirable. But, let's ignore it for the rest of
my message.

RFC1995 says:

   When an IXFR request with an older version number is received, the
   IXFR server needs to send only the differences required to make that
   version current.  Alternatively, the server may choose to transfer
   the entire zone just as in a normal full zone transfer.

As full zone (AXFR) over UDP is already available with IXFR, the only
thing we need to support AXFR over UDP is to disable differences (IXFR)
over UDP.

That is, an configuration option on IXFR servers to disable UDP
differential transfer and to encourage UDP full transfer is just
fine.

An IXFR server which is incapable of any differential transfer is
also fine.

IXFR clients, against zone administrators policy to allow differential
transfer, insisting on full transfer can ignore UDP differential
transfer responses and initiate TCP AXFR, which causes no extra packet
exchanges.

There is absolutely no protocol work left.

						Masataka Ohta


--
to unsubscribe send a message to [e-mail] with
the word 'unsubscribe' in a single line as the message text body.
archive: <http://ops.ietf.org/lists/namedroppers/>