Re: Node Req: Issue 6: Support for RFC 5121: IP version 6 over WiMAX

[Basavaraj Patil <basavaraj.patil at nokia.com>]

As Daniel has also mentioned in another email, I do not believe that 16NG
can make a recommendation about when to use a specific CS for IPv6
transport. It depends on the deployment models and operators.

-Raj


On 11/17/08 2:06 PM, "ext Brian E Carpenter" <brian.e.carpenter at gmail.com>
wrote:

> Teemu,
> 
> Well, I'd like to see a definitive statement of what the
> consensus of 16ng is on this point, and then IMHO
> the node requirements should exactly reflect that consensus.
> 
>    Brian
> 
> On 2008-11-18 06:44, teemu.savolainen at nokia.com wrote:
>> Hi Brian,
>> 
>> My recollection on this is that Ethernet CS is intended for CPE
>> ("wireless DSL") use cases and IP CSes more for handhelds. In this
>> regard IP CSes correspond very closely on 3GPP IPv4/IPv6 PDP contexts.
>> 
>> Furthermore, Ethernet CS is optional feature while support for IP CSes
>> is mandatory.
>> 
>> In future I'm sure there will be a lot more devices using IPv6 over IPv6
>> CS/IPv6 PDP context/IPv6 EPS bearers than PPP.
>> 
>> Best regards,
>> 
>> Teemu
>> 
>>> -----Original Message-----
>>> From: ipv6-bounces at ietf.org [mailto:ipv6-bounces at ietf.org] On
>>> Behalf Of ext Brian E Carpenter
>>> Sent: 16 November, 2008 21:13
>>> To: Daniel Park
>>> Cc: Loughney John (Nokia-D/MtView); ipv6 at ietf.org
>>> Subject: Re: Node Req: Issue 6: Support for RFC 5121: IP
>>> version 6 over WiMAX
>>> 
>>> Daniel,
>>> 
>>> On 2008-11-14 22:19, Daniel Park wrote:
>>>> John,
>>>> 
>>>> I would make a minor change according to the valuable comments from
>>>> the WiMAX expert:
>>>> 
>>>> There are two ways to transfer IPv6 over WiMAX:
>>>> - IPv6 over WiMAX using IPCS: RFC5121
>>>> - IPv6 over Ethernet carried over WiMAX: AD Evaluation (ID Status)
>>> Where does your suggested preference for the IPv6 CS come from?
>>> Does 16ng have a consensus on this preference?
>>> 
>>> Since I can't imagine anyone *not* implementing the Ethernet
>>> CS, doesn't this make extra work for all implementors,
>>> compared with preferring the Ethernet CS for both IP versions?
>>> 
>>>    Brian
>>> 
>>>> So.
>>>> 
>>>> 4.X IP version 6 over WiMAX - RFC 5121
>>>> 
>>>> Nodes supporting IPv6 via IPCS over WiMAX networks MUST implement
>>>> 
>>>> "Transmission of IPv6 via the IPv6 Convergence Sublayer over IEEE
>>>> 802.16 Networks" [RFC 5121].
>>>> 
>>>> 
>>>> 
>>>> 
>>>> Thanks,
>>>> 
>>>> Daniel
>>>> 
>>>> 
>>>> 
>>>> 
>>>> On Fri, Nov 14, 2008 at 6:34 AM, <john.loughney at nokia.com> wrote:
>>>> 
>>>>> Daniel Park sent this issue in:
>>>>> 
>>>>> I'd request one more requirement for this bis. It is about 16ng
>>>>> deliverable for IPv6 transmission over IPv6CS networks as RFC 5121.
>>>>> Due to Convergence Sublayer characteristics of WiMAX networks, the
>>>>> below requirement must be included in the Node Requirement.
>>> (For example:
>>>>> globally unique prefix must be assigned to the WiMAX node, DAD
>>>>> considerations, ND features, and etc described in RFC 5121)
>>>>> 
>>>>> 4.X IP version 6 over WiMAX - RFC 5121
>>>>> 
>>>>> Nodes supporting IPv6 over WiMAX networks MUST implement
>>>>> 
>>>>> "Transmission of IPv6 via the IPv6 Convergence Sublayer over IEEE
>>>>> 802.16 Networks" [RFC 5121].
>>>>> 
>>>>> --> I think this seems like a reasonable thing to add.
>>>>> 
>>>>> John
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>>>> 
>>>> 
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>> 
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