Subject: [Mip6] [issue45] Definition of Integrated Scenario

From: Gerardo <[email-masked]>
Date: Mon, 03 Oct 2005 13:59:31 +0000

New submission from Gerardo <[email-masked]>:

The definition of the integrated scenario in draft-ietf-mip6-bootstrap-ps-03 
is misleading. This depends on the change of terminology we have done from 
version 02. 
In integrated scenario, the entity that authenticates and authorizes the user 
for network access is the same entity that authenticates and authorizes the 
user for mobility service. Based on section 3, this implies that MSA==ASA. The 
description in section 7.2 and the Figure 1 must be corrected. 

Old text:
"
7.2  Integrated ASP network scenario

   In this scenario, the ASP and MSP are the same ASP.
"

Proposed text:
"
7.2  Integrated ASP network scenario

   In this scenario, the ASA and MSA are the same entity.
"

Old Figure:

                        +----------------------------+
                        | IASP(ASP+MSP)              |
           +----+    +-----+         +----+          |
           | MN |--- | NAS |         | HA |          |
           +----+    +-----+         +----+          |
                        | \            \             |
                        |  \ +------+   \ +-------+  |
                        |   -|AAA-NA|    -|AAA-MIP|  |
                        |    +------+     +-------+  |
                        +----------------------------+

New Figure:

                        +----------------------------+
                        | IASP(ASA+MSA)              |
           +----+    +-----+         +----+          |
           | MN |--- | NAS |         | HA |          |
           +----+    +-----+         +----+          |
                        | \            \             |
                        |  \ +------+   \ +-------+  |
                        |   -|AAA-NA|    -|AAA-MIP|  |
                        |    +------+     +-------+  |
                        +----------------------------+

More generally, I think terminology should be improved in draft-ietf-mip6-
bootstrap-ps-03. There are several terms with quite similar meanings: MSP, 
serving MSP, home MSP, MSA. In my view we could keep it very simple using the 
terms MSP and MSA (and similarly ASP and ASA): the MSP is the entity that 
provides the Home Agent, the MSA is the entity that authenticates and 
authorizes the user for mobility service. 
For example, in Figure 2 I would suggest to have "MSA" in the box on the right 
instead of "home MSP".

--Gerardo

----------
category: Editorial
draft: draft-ietf-mip6-bootstrap-ps
messages: 166
nosy: gerardo
priority: Should fix
status: Pending
title: Definition of Integrated Scenario

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