Re: [MEXT] [mext] #11: De-registration when returning home [VijayDevarapalli <vijay at wichorus.com>]

[Vijay Devarapalli <vijay at wichorus.com>]

On 7/8/08 7:27 PM, "Benjamin Lim" <benjamin.limck at sg.panasonic.com> wrote:

>> In case the mobile node has more than one interface and
>>    can bind more than one care-of address to the home address, the
>>    mobile MAY send a Binding Update to its home agent, to
>> instruct its 
>>    home agent to no longer intercept or tunnel packets for
>> it. 
> [Ben] IMHO, this should also be a MUST. Base on the same logic as above.
> This is irrespective to whether MN is trying to achieve simultaneous home
> and away or not.  Regardless on whether if MN has one CoA or multiple CoAs,
> when MN returns home, it would need to remove its associated CoA entry from
> the HA.  Hence, I do not see a reason why for one CoA MN MUST send BU, but
> for multiple CoAs MN MAY send BU.

The second part is intended to support the case where the MN may want to
continue using the interface with which it is attached to the visited link.
The binding stays active, while the MN is attaching to the home link with
one of the interfaces. It may decide at a later time if wants to use only
the interface with which it is attached to the home link.

Any suggestions to improve the text to indicate the above is welcome.

Vijay

> 
> Regards,
> Benjamin Lim
> 
>> For more
>>    information on the mobile node returning home procedure when there
>>    are multiple care-of addresses, see [MCOA].
>> 
>> In the InformativFrom mext-bounces at ietf.org  Tue Jul  8 22:53:53 2008
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Date: Tue, 08 Jul 2008 22:53:58 -0700
From: Vijay Devarapalli <vijay at wichorus.com>
To: Benjamin Lim <benjamin.limck at sg.panasonic.com>
Message-ID: <C499A086.109E%vijay at wichorus.com>
Thread-Topic: [MEXT] [mext] #11: De-registration when returning home
	[VijayDevarapalli <vijay at wichorus.com>]
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Subject: Re: [MEXT] [mext] #11: De-registration when returning home
 [VijayDevarapalli <vijay at wichorus.com>]
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On 7/8/08 7:27 PM, "Benjamin Lim" <benjamin.limck at sg.panasonic.com> wrote:

>> In case the mobile node has more than one interface and
>>    can bind more than one care-of address to the home address, the
>>    mobile MAY send a Binding Update to its home agent, to
>> instruct its 
>>    home agent to no longer intercept or tunnel packets for
>> it. 
> [Ben] IMHO, this should also be a MUST. Base on the same logic as above.
> This is irrespective to whether MN is trying to achieve simultaneous home
> and away or not.  Regardless on whether if MN has one CoA or multiple CoAs,
> when MN returns home, it would need to remove its associated CoA entry from
> the HA.  Hence, I do not see a reason why for one CoA MN MUST send BU, but
> for multiple CoAs MN MAY send BU.

The second part is intended to support the case where the MN may want to
continue using the interface with which it is attached to the visited link.
The binding stays active, while the MN is attaching to the home link with
one of the interfaces. It may decide at a later time if wants to use only
the interface with which it is attached to the home link.

Any suggestions to improve the text to indicate the above is welcome.

Vijay

> 
> Regards,
> Benjamin Lim
> 
>> For more
>>    information on the mobile node returning home procedure when there
>>    are multiple care-of addresses, see [MCOA].
>> 
>> In the Informative referee references add,
>> 
>>    [MCOA] Wakikawa, S., Devarapalli, V., Ernst, T., and K. Nagami,
>>           "Multiple Care-of Addresses Registration", Work in
>>           Progress, May 2008.
>>    
>> Hope this acceptable to all.
>> 
>> Vijay
> 
> 

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nces add,
>> 
>>    [MCOA] Wakikawa, S., Devarapalli, V., Ernst, T., and K. Nagami,
>>           "Multiple Care-of Addresses Registration", Work in
>>           Progress, May 2008.
>>    
>> Hope this acceptable to all.
>> 
>> Vijay
> 
> 

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