Sigh..

"Thanks Darrel" dammit. :-(

Long night/early morning.

Sorry.
T.


On 8/02/12 9:36 AM, "Terry" <[email protected]> wrote:

> Thanks Dino!
> 
> T.
> 
> 
> On 7/02/12 2:45 AM, "Darrel Lewis" <[email protected]> wrote:
> 
>> 
>> 
>> On Feb 6, 2012, at 6:43 AM, Jari Arkko wrote:
>> 
>>> On 03.02.2012 20:21, Darrel Lewis wrote:
>>>> Jari,
>>>> 
>>>> Sorry for taking so long to respond to your review.  Please find suggested
>>>> text below as well as a proposed -03 draft attached.
>>>> 
>>>> On Jan 2, 2012, at 1:27 AM, Jari Arkko wrote:
>>>> 
>>>>> I have reviewed this document.
>>>>> 
>>>>> In general, it is well written and almost ready to go forward. There are a
>>>>> couple of areas that need further text, however. The main issue is a clear
>>>>> description of the to-experiment and problematic areas of LISP
>>>>> interworking. (Making those is also needed in order to get the document
>>>>> approved, based on experience of taking the other Lisp documents to the
>>>>> IESG.) Another issue is that I think the security considerations text
>>>>> needs 
>>>>> work.
>>>>> 
>>>>> In moder detail:
>>>>> 
>>>>> Technical issue: As with the other documents from the group, Section 1
>>>>> should include a high-level explanation of what issues are uncertain,
>>>>> potentially problematic, or worth experimenting on. For instance, I
>>>>> presume 
>>>>> you should say something about the effects of having to NAT traffic,
>>>>> finding deployment motivations to set up proxy ITRs, possible inclusion of
>>>>> too much non-aggregated EID space in the DFZ, effects of the asymmetric
>>>>> PITR routing, and so on.
>>>>> 
>>>>> Please suggest text.
>>>> I suggest adding the following paragraph to the end of the Introduction
>>>> (Section 1).
>>>> 
>>>>    Several areas concerning the Interworking of LISP and non-LISP sites
>>>> remain open
>>>>    for further study.  These areas include an examination the impact of
>>>> LISP-NAT on
>>>>    internet traffic and applications, understanding the deployment
>>>> motivations for
>>>>    the deployment and operation of Proxy Tunnel Routers, the impact of EID
>>>> routes
>>>>    originated by these Proxy Tunnel Routers into the Internet's Default
>>>> Free 
>>>> Zone,
>>>>    and the effects of Proxy Tunnel Routers on internet traffic and
>>>> applications.
>>>>    of Proxy Tunnel Routers on internet traffic and applications.  This
>>>> analysis will
>>>>    explain what role Proxy Tunnel Routers and NAT will play in the expected
>>>> ongoing
>>>>    presence of both LISP and non-LISP sites in the Internet.
>>> 
>>> 
>>> Some duplication above ("of Proxy ....")
>> 
>> Ack.
>> 
>>> 
>>> I like the beginning part, but I would replace the last sentence with:
>>> 
>>> "Until these issues are fully understood, it is possible that the
>>> interworking mechanisms described in this document are hard to deploy, or
>>> may 
>>> have unintended consequences to applications."
>>> 
>>> (I think that is a true statement. And I'm not trying to be negative, but
>>> from processing the other docs in the IESG, it is clear that we cannot get
>>> the documents approved without safety warnings like this.)
>> 
>> I'm fine with this text Jari, consider it changed.
>> 
>> <snip>
>> 
>>>> 
>>>> 
>>>>>> 9. Security Considerations
>>>>> Technical issue: This section seems a bit thin. I'd love to see a
>>>>> discussion of the following additional issues:
>>>>> 
>>>>> Implications to firewalls? Are there any? What about asymmetric routing?
>>>> I don't now of any implications to firewalls, asymmetric routing is
>>>> problematic for any multi-homed site and its my belief that
>>>> LISP-Interworking has no impact on this beyond what LISP introduces with
>>>> multihoming.  That is, if you multi-home today (with LISP or BGP) you get
>>>> the possibility of asymmetric flows.  Interworking's schemes, by
>>>> themselves, 
>>>> don't seem to me to change that.  However, if you can suggest some specific
>>>> examples to guide this discussion I'll be happy to produce some text, I
>>>> just 
>>>> can't think of anything right now.
>>> 
>>> What you say above would also be good text to add, IMO. That is, lack of an
>>> impact is also useful information.
>> 
>> Ok thanks for the guidance will suggest text for you here. It seems like we
>> are in agreement.  I will make these changes and post the -03 version.
>> 
>> -Darrel
>> 
>> 
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