Re: [netlmm] FW: I-D Action:draft-ietf-netlmm-grekey-option-08.txt

Hi Ahmad,

Sounds OK.

Cheers,
	Jouni

On May 1, 2009, at 7:46 PM, Ahmad Muhanna wrote:

>
> Hello Folks,
> If there is anyone who does NOT agree with the proposed change below,
> please speak up.
>
>>>
>>> May be what we can do is have a general statement which says:
>>>
>>> "The LMA MUST maintain the same negotiated uplink GRE key for the
>>> lifetime of the mobility session. However, for
>> administrative reasons,
>>> e.g., LMA reboot, the LMA MAY change the uplink GRE key for
>> some the
>>> mobility session. In that case, some packet loss may be
>> experienced."
>>>
>>> Then we maintain MUST in all other cases of the text.
>
> Thanks!
>
> Regards,
> Ahmad
>
>> -----Original Message-----
>> From: Vijay Devarapalli [mailto:vijay@wichorus.com]
>> Sent: Friday, May 01, 2009 11:12 AM
>> To: Muhanna, Ahmad (RICH1:2H10); netlmm@ietf.org
>> Subject: Re: [netlmm] FW: I-D
>> Action:draft-ietf-netlmm-grekey-option-08.txt
>>
>> Hi Ahmad,
>>
>> On 5/1/09 9:09 AM, "Ahmad Muhanna" wrote:
>>
>>> I understand this is a tricky area. My understanding of "SHOULD" is
>>> that LMA "MUST" do it unless there is a strong and valid
>> reason NOT do
>>> it; but I agree that keeps the door open for interpretation.
>>>
>>> May be what we can do is have a general statement which says:
>>>
>>> "The LMA MUST maintain the same negotiated uplink GRE key for the
>>> lifetime of the mobility session. However, for
>> administrative reasons,
>>> e.g., LMA reboot, the LMA MAY change the uplink GRE key for
>> some the
>>> mobility session. In that case, some packet loss may be
>> experienced."
>>>
>>> Then we maintain MUST in all other cases of the text.
>>
>> This sounds good to me.
>>
>> Vijay
>>
>>>
>>> Regards,
>>> Ahmad
>>>
>>>
>>>> -----Original Message-----
>>>> From: Vijay Devarapalli [mailto:vijay@wichorus.com]
>>>> Sent: Friday, May 01, 2009 10:48 AM
>>>> To: Muhanna, Ahmad (RICH1:2H10); netlmm@ietf.org
>>>> Subject: Re: [netlmm] FW: I-D
>>>> Action:draft-ietf-netlmm-grekey-option-08.txt
>>>>
>>>> Hi Ahmad,
>>>>
>>>> On 4/30/09 10:41 PM, "Ahmad Muhanna" wrote:
>>>>
>>>>> Hello Folks,
>>>>>
>>>>> We submitted a new revision with 2 changes:
>>>>>
>>>>> 1. Minor editorial changes to always use of mobile access
>>>> gateway and
>>>>> local mobility anchor for consistency.
>>>>>
>>>>> 2. Demoting the "MUST" to "SHOULD" when requiring the LMA
>> to return
>>>>> the "same" uplink GRE key that was exchanged in the last
>> successful
>>>>> Proxy Binding Update. This ensures the case when the LMA needs to
>>>>> generate a new GRE key due to a case of failure.
>>>>
>>>> We need some text to say when the LMA can change the
>> uplink GRE key.
>>>> With the 'MUST' we had earlier, the MAG could expect to
>> use the same
>>>> uplink GRE key for the lifetime of the mobility session.
>> But now with
>>>> a 'SHOULD', an LMA implementation could decide to change
>> the uplink
>>>> GRE key in the middle of a session for reasons other than a "LMA
>>>> reboot".
>>>>
>>>> Vijay
>>>>
>>>>>
>>>>> Thanks!
>>>>>
>>>>> Regards,
>>>>> Ahmad
>>>>>
>>>>> -----Original Message-----
>>>>> From: i-d-announce-bounces@ietf.org
>>>>> [mailto:i-d-announce-bounces@ietf.org] On Behalf Of
>>>>> Internet-Drafts@ietf.org
>>>>> Sent: Thursday, April 30, 2009 5:00 PM
>>>>> To: i-d-announce@ietf.org
>>>>> Cc: netlmm@ietf.org
>>>>> Subject: I-D Action:draft-ietf-netlmm-grekey-option-08.txt
>>>>>
>>>>> A New Internet-Draft is available from the on-line
>> Internet-Drafts
>>>>> directories.
>>>>> This draft is a work item of the Network-based Localized Mobility
>>>>> Management Working Group of the IETF.
>>>>>
>>>>>
>>>>> Title           : GRE Key Option for Proxy Mobile IPv6
>>>>> Author(s)       : A. Muhanna, et al.
>>>>> Filename        : draft-ietf-netlmm-grekey-option-08.txt
>>>>> Pages           : 24
>>>>> Date            : 2009-04-30
>>>>>
>>>>> This specification defines a new Mobility Option for allowing the
>>>>> mobile access gateway and the local mobility anchor to
>>>> negotiate GRE
>>>>> (Generic Routing Encapsulation) encapsulation mode and
>> exchange the
>>>>> downlink and uplink GRE keys which are used for marking the
>>>> downlink
>>>>> and uplink traffic that belong to a specific mobility
>> session.  In
>>>>> addition, the same mobility option can be used to
>> negotiate the GRE
>>>>> encapsulation mode without exchanging the GRE keys.
>>>>>
>>>>> A URL for this Internet-Draft is:
>>>>>
>>>>
>> http://www.ietf.org/internet-drafts/draft-ietf-netlmm-grekey-option-0
>>>> 8
>>>>> .t
>>>>> xt
>>>>>
>>>>> Internet-Drafts are also available by anonymous FTP at:
>>>>> ftp://ftp.ietf.org/internet-drafts/
>>>>>
>>>>> Below is the data which will enable a MIME compliant mail reader
>>>>> implementation to automatically retrieve the ASCII version of the
>>>>> Internet-Draft.
>>>>> _______________________________________________
>>>>> netlmm mailing list
>>>>> netlmm@ietf.org
>>>>> https://www.ietf.org/mailman/listinfo/netlmm
>>>>
>>>>
>>
>>
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