RE: Message Pushing and TCP Transport

["Bason, Chris" <cbason@verisign.com>]

Eric, per your suggestion I revisited the message thread you referred 
to. As far as I can tell there are no comments in that particular 
thread about polling vs. pushing transfer notifications. There certainly 
is no consensus on this topic in the thread. Furthermore, based on the 
WG mailing list to date, I have not seen a majority consensus in any 
message thread that identifies pushing notifications as an acceptable 
addition to the protocol.

Let me just restate then what I am looking for and why. I saw Scott 
Hollenbeck's message on the list, "WG Discussion Summary with Draft 
Document Impact" stating the following:

...
Eric's XRP presentation and subsequent discussion led to a reopening of the
message polling vs. message pushing discussion.  Folks in the room seemed to
support the idea of having both mechanisms in the base protocol, with the
client having the ability to select a delivery mechanism from among those
offered by the server.  Eric will offer up suggested text to be added to the
EPP draft(s).
...

This statement concerns me. Let me then rephrase the question: 
1) What justification was given that received so much support for pushing 
transfer notifications where there was little support before? 
2) What is advantageous about using a push mechanism for transfer
notification in our current registry/registrar model over 
using a pull mechanism?

I personally see no advantage. Although, I do see several disadvantages, 
one of which is the unnecessary complexity that will be added to the 
protocol. If there are no clear advantages for using a push method then 
it should not be added to the protocol.

Chris Bason


-----Original Message-----
From: Eric Brunner-Williams in Portland Maine
[mailto:brunner@nic-naa.net]
Sent: Wednesday, August 15, 2001 11:51 PM
To: Bason, Chris
Cc: 'ietf-provreg@cafax.se'; brunner@nic-naa.net
Subject: Re: Message Pushing and TCP Transport 


> Would someone please elaborate on why this push concept 
> is advantageous to EPP (preferably a PUSH proponent)? 

The issue has been discussed quite a few times on the list, not just at -50
and -51. See the general discussion of transfer notification.

Eric