Re: AD Evaluation: draft-ietf-dmm-requirements

Jouni Korhonen <[email protected]>
Newsgroups gmane.ietf.nemo
Message-ID <6FBDFC0E-2C85-46E3-99C9-8B468E7CA44B__33667.1041710817$1391128833$gmane$org@gmail.com>
On Jan 29, 2014, at 6:01 AM, Brian Haberman <[email protected]> wrote:

[snip]

>> We can change to:
>> 
>>   REQ5:  Co-existence with deployed networks and hosts
>> 
>> 
>> 
>>          The DMM solution MUST be able to co-exist with existing
>>           network deployments and end hosts without breaking them.  For example, depending on
>>           the environment in which DMM is deployed, DMM solutions may
>>           need to be compatible with other deployed mobility protocols
>>           or may need to co-exist with a network or mobile hosts/routers
>>           that do not support DMM protocols.  The mobile node may also
>>           move between different access networks, where some of them may
>>           support neither DMM nor another mobility protocol.
>>           Furthermore, a DMM solution SHOULD work across different
>>           networks, possibly operated as separate administrative
>>           domains, when allowed by the trust relationship between them.
> 
> The "without breaking" is fine.  However, the "need to be compatible
> with" phrasing is still problematic.  Is that inferring that in some
> situations that a DMM solution would need to interact with, for example,
> PMIP?

Your observation is correct. Maybe slightly better wording would work:

   REQ5:  Co-existence with deployed networks and hosts

         The DMM solution may require loose, tight or no integration into
         existing mobility protocols and host IP stack. Independent of the
         integration level, the DMM solution MUST be able to co-exist with
         existing network deployments, end hosts and routers that may or
         may not implement existing mobility protocols. Furthermore, a DMM
         solution SHOULD work across different networks, possibly operated
         as separate administrative domains, when allowed by the trust
         relationship between them.


- Jouni

> 
> Regards,
> Brian
> 
>
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