Re: [Softwires] GI-DS-lite as working group item?

2010-05-12 Thread Sri Gundavelli
Hi Mohamed, Please see inline. Med: Since the request come from 3GPP, the applicability of the solution SHOULD NOT be beyond that scope. Furthermore, the draft should at least provide a background on the main recommendations of 3GPP SI: DS and IPv6-only and that the proposal can be used

Re: [Softwires] GI-DS-lite as working group item?

2010-05-11 Thread Sri Gundavelli
Hi Ahmad: On 5/11/10 9:38 PM, Ahmad Muhanna ahmad.muha...@ericsson.com wrote: Hi Sri, -Original Message- From: softwires-boun...@ietf.org [mailto:softwires-boun...@ietf.org] On Behalf Of Sri Gundavelli Sent: Tuesday, May 11, 2010 6:26 PM To: Joel M. Halpern Cc: softwires

Re: [Softwires] Host based translation: v4-v6

2009-12-06 Thread Sri Gundavelli
Hi Hui, On 12/6/09 2:18 AM, Hui Deng denghu...@gmail.com wrote: It's quite clear same as you said here, there are binary codes and codec codes which need additioinal payment for updating, it's a existing scenario. I do not understand this response. I'm not a codec or a DSP expert, but I

Re: [Softwires] Host based translation: v4-v6

2009-12-05 Thread Sri Gundavelli
, 2009/12/5 Sri Gundavelli sgund...@cisco.com: Hi Hui, 1. DS-lite has an important property, making IPv4 address some what irrelevant in the context of IP routing and just make it a simple state in two places, the mobile node and the NAT44 gateway. Its allowing the network to migrate

Re: [Softwires] Host based translation: v4-v6

2009-12-04 Thread Sri Gundavelli
, Sri, Thanks for the discussion, inline please 2009/12/4 Sri Gundavelli sgund...@cisco.com: Hi Hui: You and Bo touched a very important point. Your point is that DS-lite is just about IPv4 address exhaust and not about migration. You already heard from Alain and that's the best source

Re: [Softwires] Host based translation: v4-v6

2009-12-03 Thread Sri Gundavelli
Hi Hui: You and Bo touched a very important point. Your point is that DS-lite is just about IPv4 address exhaust and not about migration. You already heard from Alain and that's the best source. But, I'll comment in the context of mobile architectures and application of GI-DS-lite. 1. DS-lite

Re: [Softwires] Host based translation: v4-v6

2009-12-02 Thread Sri Gundavelli
Hi Hui, On 12/2/09 7:20 AM, Hui Deng denghu...@gmail.com wrote: Hi, Sri, inline please, 2009/12/2 Sri Gundavelli sgund...@cisco.com: Hi Hui, Now, we are closing down on identifying the gap. 1.) IPv6 App communicating with an IPv6 App 2.) IPv4 App communicating with an IPv4 App

Re: [Softwires] Host based translation: v4-v6

2009-12-02 Thread Sri Gundavelli
nick.heat...@t-mobile.co.uk To: Hui Deng denghu...@gmail.com; Sri Gundavelli sgund...@cisco.com; alain_dur...@cable.comcast.com Cc: softwires@ietf.org Sent: Thursday, December 03, 2009 12:40 AM Subject: Re: [Softwires] Host based translation: v4-v6 Hi, Good day to you all. I hope you

Re: [Softwires] Host based translation: v4-v6

2009-12-02 Thread Sri Gundavelli
Hi Xiangsong, Please see inline for one clarification. In this situation, NAT is necessary, I do agree your opinion that PNAT is moving NAT function from network to UEs, but this approach may be good or bad. Advantage: it can improve end-to-end transparency and simplify network,

Re: [Softwires] Host based translation: v4-v6

2009-12-02 Thread Sri Gundavelli
Hi Bo, The discussion slightly digressed. But, its fine and for this comment, its not really true that host translation will preserve end-to-end transparency. That is a myth. Any time Hui's PNAT host with its IPv6 transport communicates with an IPv4 host on

Re: [Softwires] Summary of the discussion Host based translation forv4-v4 within the same network.

2009-12-01 Thread Sri Gundavelli
On 12/1/09 2:32 PM, Behcet Sarikaya behcetsarik...@yahoo.com wrote: We do not initiate tunnels from MAG to CGN. The gateway in the Gateway initiated DS lite is not the first hop router, such as MAG, but a router at the end of the mobility tunnel. We also dont initiate tunnels from UE.

Re: [Softwires] Discussion on the requirements of Host Based Translation

2009-11-30 Thread Sri Gundavelli
Hi Hui, Please see inline. On 11/29/09 10:40 PM, Hui Deng denghu...@gmail.com wrote: You are talking about the UE to UE for the overlapping IPv4 case. As I explained in my long email earlier, we support the case for UE to UE non-overlapping case. For the case of overlapping there are no