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Re: [Seamoby] CAR Discovery Requirements

John Schnizlein <jschnizl@cisco.com> Mon, 14 January 2002 17:11 UTC

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Date: Mon, 14 Jan 2002 11:46:55 -0500
To: Govind Krishnamurthi <govs23@hotmail.com>
From: John Schnizlein <jschnizl@cisco.com>
Subject: Re: [Seamoby] CAR Discovery Requirements
Cc: seamoby@ietf.org
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At 12:50 PM 1/10/2002, Govind Krishnamurthi wrote:
>...
>6. Protocol applicability ? SHOULD (?) 
>(show of hands indicated that this item should be changed to a MUST) 
>support inter-domain as well as Intra-domain scope

Inter-domain discovery of access routers (which seems implied by what
might otherwise seem an innocuous protocol design feature) is problematic.

It would require resolving which users are subscribers of which domains,
or complex inter-domain roaming and billing reciprocity. 

While it seems reasonable to avoid locking mobile stations into a single
domain, the policy interactions of requiring multiple-domain discovery
would make the task much more difficult at the start.

Please reconsider even the SHOULD for this item, much less moving toward
MUST.

John


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