Re: [MEXT] Comments on draft-ietf-monami6-multiplecoa-13

[Ryuji Wakikawa <[e-mail]>]

Hi Romain,

On 2009/05/12, at 14:08, Romain KUNTZ wrote:

> Hi Ryuji,
>
> On 2009/05/11, at 22:59, Ryuji Wakikawa wrote:
>>> First, I'd like to express that I support Arnaud's opinion about  
>>> section 5.6 (Simultaneous Home and Visited Link Operation). I also  
>>> don't see what is the motivation to re-route and tunnel traffic  
>>> from the HA to one of the MN's CoA, while the MN is only one hop  
>>> from the HA. Even if there is a specific use-case, at the time  
>>> this topology was suggested, a simple solution that came out was  
>>> to configure a CoA on the Home link and use a tunnel via the home  
>>> link. I don't think the little overhead of this solution justifies  
>>> the complexity of the one proposed in the draft.
>>
>> This was discussed at WG. We agreed to have this feature at the end.
>> I understand the complexity, but this is how WG agreed.
>>
>> It is not possible to change the consensus at this moment. We  
>> passed all last call.
>
> Ok, this has also been extensively discussed in another thread -  
> I'll follow the WG agreement then.
>
>>> Two other minor comments on the draft below:
>>>
>>> - Section 6.2 (Processing Binding Update)
>>>
>>>    *  If the 'O' flag is set in the Binding Update, the home agent
>>>       removes all the existing bindings and registers the received
>>>       binding(s).
>>>
>>> It is not explicitly said that the MN can use the O flag with a  
>>> CN. I think nothing prevents the MN to use it, so we should  
>>> replace "home agent" with "receiving node".
>
> You didn't ack the above comment, did you skip it by mistake?

I've already replaced it :-)

thanks!
ryuji


>
>
>
>>> If all the above operations are successfully completed, a Binding
>>> Acknowledgement containing the Binding Identifier mobility options
>>> MUST be sent to the mobile node.
>>>
>>> The BAck must be sent only if the 'A' flag was set in the BU,  
>>> right? or does the MCoA spec mandates sending BAck in all cases?
>>
>> BA is sent only A flag is set.
>> I will update this to
>>
>>> If all the above operations are successfully completed, a Binding
>>> Acknowledgement containing the Binding Identifier mobility options
>>> MUST be sent to the mobile node if  'A' flag is set in the  
>>> received Binding Update.
>>
>> Please let me know if you have further comments on this.
>
> Looks fine with me!
>
> Thanks,
> romain
>