Re: [DNA-BOF] Attachment Detection charter text for discussion

[Spencer Dawkins <spencer@mcsr-labs.org>]

Hi,

I agree with JinHyeock. "IP subnet change" is useful, but it's a
subset of what's useful - transport protocols care about any
path change (especially in wireless networks), and the competing
traffic being encountered on the second AP is different from
the competing traffic on the first AP, just to name one
consideration (I'm sure there are others).

Spencer

----- Original Message ----- 
From: "JinHyeock Choi" <athene@sait.samsung.co.kr>
To: "Jari Arkko" <jari.arkko@kolumbus.fi>; "Brett Pentland"
<brett.pentland@monash.edu>
Cc: <greg.daley@eng.monash.edu.au>; <dna@eng.monash.edu.au>
Sent: Friday, August 15, 2003 10:06 AM
Subject: Re: [DNA-BOF] Attachment Detection charter text for
discussion


> Hi
>
> I think we'd better clarity the definition of 'Network Attachemt'.
Greg's
> definition and Brett's are slightly different.
>
> Assume two APs are one the same link and share one AR like below.
> Assume also a MN is attached to AR through AP1.
>                                                |
>                                            __|____
>                                          |            |
>                                          |   AR    |
>                                          |___  __|
>                           __________|__________________ _____
>                                     |
|
>                                 __|__                      __ |__
>                                | AP1 |                     | AP2 |
>                                |____ |                     |___ _|
>
>
>
> If MN moves from AP1 to AP2, will we say 'Network Attachment'
occurs?
>
> According to Greg's definition, Network Attachment doesn't occur
because
> a MN doesn't arrive on a new IP subnet. But according to Brett's
definition,
> Network Attachment occurs.
>
> I think we'd better interpret this as 'Network Attachment occurs'.
IMHO, Network
> Attachment occurs when a host arrives on NOT 'a new IP subnet' BUT
'a new link'.
>
>
>
>