Re: Fwd: New Version Notification for draft-matsushima-stateless-uplane-vepc-00.txt

Peter McCann <[email protected]>
Newsgroups gmane.ietf.nemo
Message-ID <5963DDF1F751474D8DEEFDCDBEE43AE716F4F1E8__24577.4935502142$1373730628$gmane$org@dfweml512-mbx.china.huawei.com>
Hi, Ryuji, Satoru,

If I understand your draft correctly, you are encoding the PGW ID and the
TEID into the prefix portion of an IPv6 address.  You seem to allocate
16 bits for the TEID.  I thought that TEIDs in 3GPP were 32 bits.  Do you
have enough space?  Could you instead encode the TEID in the Interface
Identifier part of the IPv6 address?

Perhaps I have misunderstood how the routing update is supposed to work,
but why do you need to encode the UE's prefix or address at all in the
Next-Hop IPv6 address?  You have the UE's prefix as the Destination, and
the Next-Hop can just point to the tunnel, correct?

-Pete

Ryuji Wakikawa wrote:
> Hi
> 
> We submit a new document.  Your comments are appreciated!
> 
> thanks,
> ryuji
> 
> 
> Begin forwarded message:
> 
>> From: [email protected]
>> Subject: New Version Notification for
>> draft-matsushima-stateless-uplane-vepc-00.txt
>> Date: July 10, 2013 9:09:44 AM PDT
>> To: Ryuji Wakikawa <[email protected]>, Satoru Matsushima
>> <[email protected]>
>> 
>> 
>> A new version of I-D, draft-matsushima-stateless-uplane-vepc-00.txt has
>> been successfully submitted by Satoru Matsushima and posted to the IETF
>> repository.
>> 
>> Filename:	 draft-matsushima-stateless-uplane-vepc Revision:	 00
>> Title:		 Stateless user-plane architecture for virtualized EPC (vEPC)
>> Creation date:	 2013-07-10 Group:		 Individual Submission Number of
>> pages: 19 URL:             http://www.ietf.org/internet-drafts/draft-
>> matsushima-stateless-uplane-vepc-00.txt Status:         
>> http://datatracker.ietf.org/doc/draft-matsushima- stateless-uplane-vepc
>> Htmlized:        http://tools.ietf.org/html/draft-matsushima-
>> stateless-uplane-vepc-00
>> 
>> 
>> Abstract:
>>   We envision a new mobile architecture for the future Evolved Packet
>>   Core (EPC).  The new architecture is designed to support the
>>   virtualization scheme called NFV (Network Function Virtualization).
>>   In our architecture, the user plane of EPC is decoupled from the
>>   control-plane and uses routing information to forward packets of
>>   mobile nodes.  Although the EPC control plane will run on hypervisor,
>>   our proposal does not modify the signaling of the EPC control plane.
>>   The benefits of our architecture are 1) scalability, 2) flexibility
>>   and 3) Manageability.  How to run the EPC control plane on NFV is out
>>   of our focus in this document.
>> 
>> 
>> 
>> The IETF Secretariat
>> 
> 
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