Re: [Monami6] Simultaneous location in home and foreign

Hi!

Ryuji Wakikawa wrote:
> 
> 
> At Fri, 02 Dec 2005 09:38:57 +0800,
> Benjamin Koh wrote:
>> Hi!
>>
>> Replies inline.
>>
>>>  > I am concerned about the issue which is described in 6.2.3
>>>  > (Simultaneous location in home and foreign networks) of
>>>  > draft-montavont-mobileip-multihoming-pb-statement-05.txt.
>>>  > In order to achieve the goals of Monami6. even if when a MN is
>>>  > connected to both Home and Foreign networks, I think that a 
>>>  > HA should be 
>>>  > able to be aware of the existence of multiple paths to the 
>>>  > MN including 
>>>  > the path to the MN's interface connected to the home network because
>>>  > this is necessity for allowing the HA to initiate a change of 
>>>  > forwarding destination.
>>>  > 
>>>  > With regard to this issue, one available method is that a MN creates 
>>>  > CoA(home CoA) at a home network and assigns it to the interface
>>>  > connected to the home network so that it can register it as new 
>>>  > forwarding destination in addition to other forwarding destinations 
>>>  > for the interfaces connected to a foreign network and also a HA can
>>>  > maintain multiple paths to the MN. 
>>>  > Any thoughts on this?
>>>
>>> => I think it's an important issue and will definitely address it
>>> in the final solution. However, I don't think we can/need to create a 
>>> "home CoA". We might be able to get away with specifying in the signalling
>>> that only the flows explicitly specified should be forwarded to the 
>>> CoA, otherwise, they should be forwarded using normal routing. 
>> [BK]
>> >From what I understand in the MCoA draft, when the primary interface
>> returns home, all bindings are deleted. In that case how does the HA
>> know to forward the traffic to a CoA rather than simply assume that the
>> MN is at home (or can the HA even receive the incoming traffic assuming
>> that it is
>> not the default home router)?
> 
> There are two options in the current draft. See Appendix-B.
> One is when MN returns home with primary interface. MN deletes all
> bindings.  Second is when MN returns with non-primary IF. MN will
> delete binding for the non-primary IF (if it's active on HA) and keeps
> other binding.
So the choice is between only using home link (home with primary
interface) and only using foreign link (returns with non-primary IF). In
both cases I'm still not utilising my multiple links to their fullest
potential.

> Note that, if RO is used, MN can utilize multiple paths even if it is
> at home.
I believe that's only if CN is mobility-aware, if CN is a normal IPv6
node I don't think RO can be used.

Regards,
Ben

> regards,
> ryuji
> 
>> Regards,
>> Ben
>>
>>> Hesham
>>>
>>>
>>>
>>>  > 
>>>  > Regards,
>>>  > Keigo
>>>  > 
>>>  > 
>>>  > 
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