Re: [MEXT] Any Comments fordraft-jeyatharan-mext-flow-tftemp-reference-00
Frank Xia <xiayangsong@huawei.com> Mon, 05 April 2010 17:04 UTC
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Date: Mon, 05 Apr 2010 12:04:32 -0500
From: Frank Xia <xiayangsong@huawei.com>
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To: 'Mohana Jeyatharan' <Mohana.Jeyatharan@sg.panasonic.com>, 'mext' <mext@ietf.org>
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Subject: Re: [MEXT] Any Comments fordraft-jeyatharan-mext-flow-tftemp-reference-00
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Hi Mohana Hi Mohana I don't think draft-ietf-mext-flow-binding-06.txt need any changes. However, I think it is very useful to document the integration of them. BR Frank -----Original Message----- From: Mohana Jeyatharan [mailto:Mohana.Jeyatharan@sg.panasonic.com] Sent: Sunday, April 04, 2010 7:17 PM To: Frank Xia; mext Subject: RE: [MEXT] Any Comments fordraft-jeyatharan-mext-flow-tftemp-reference-00 Hi Frank, Please see below. BR, Mohana > -----Original Message----- > From: Frank Xia [mailto:xiayangsong@huawei.com] > Sent: Thursday, April 01, 2010 10:48 PM > To: Mohana Jeyatharan; 'mext' > Subject: RE: [MEXT] Any Comments > fordraft-jeyatharan-mext-flow-tftemp-reference-00 > > Hi Mohana > > Please check my replies again.. > > BR > Frank > > -----Original Message----- > From: Mohana Jeyatharan [mailto:Mohana.Jeyatharan@sg.panasonic.com] > Sent: Wednesday, March 31, 2010 7:27 PM > To: Frank Xia; mext > Subject: RE: [MEXT] Any Comments > fordraft-jeyatharan-mext-flow-tftemp-reference-00 > > Hi Frank, > > Thank you for some quick comments. > > Please see some replies below. > > BR, > Mohana > > > -----Original Message----- > > From: Frank Xia [mailto:xiayangsong@huawei.com] > > Sent: Thursday, April 01, 2010 6:19 AM > > To: Mohana Jeyatharan; 'mext' > > Subject: RE: [MEXT] Any Comments > > fordraft-jeyatharan-mext-flow-tftemp-reference-00 > > > > Hi Mohana > > > > I had a quick glance. > > It is interesting. > > > > Some clarification questions are below: > > 1)is TFT(Traffic Flow Template)implementation > > mandatory for 3GPP mobile node? > > I think so from your document. > > If 3GPP network entitiy decides per flow QoS treatment needed > for a given prefix/HoA, then dedicated bearers will be > created by network and such TFTs will be assigned. In such a > case, the 3GPP MN needs to understand the TFT when sending > data. Thus I would say it is mandatory for the MN. However, > it is not mandatory to create dedicated bearers. If there are > no dedicated bearers and TFT, the MN will not have TFTs stored in it. > Frank=>I am sure about your answer, yes or not. > " If 3GPP network entitiy decides per flow QoS treatment > needed for a given prefix/HoA ..". I assume per flow > treatment is a prerequisite for 3GPP when we talk about flow > binding topic. So, I think your answer is yes. Yes, the answer is yes. TFT feature for MN is mandatory. > > 2)is it has the same descriptive capability as > > draft-ietf-mext-binary-ts-04.txt? > > I think so. > The TFT reference traffic selector suboption is different > from the binary TS traffic selector sub option. In TFT Ref > sub option, the data field only carries the bearer ID to > describe the packet filters. > Multiple packet filters are collapsed to a single bearer ID. > Moreover, when there is change in packet filters tied to TFT, > a simple refresh flowbinding would do as described in the > TFT-ref draft. Thus there are some subtle differences > between the two. > > > However, in highlevel both are describing flows when setting > filter rules. > But, what we are highlighting here is that, when TFTs are > present at the 3g bearer filtering table, and the MN wants > such flows to be sent via 3G path, a simple reference to the > TFT is an easier way to set flow binding rules. > Frank=>Did you contribute this to 3GPP? IMHO, TFT is a > better way to incorporate into current 3GPP system. The TFT reference as a new traffic selector sub-option format needs to be specified in IETF. Following that it can be used in 3GPP. Yes, using a TFT to describe the flows in flow binding operation is useful in 3GPP scenarios as highlighted in the draft. > > > > BR > > Frank > > > > -----Original Message----- > > From: mext-bounces@ietf.org [mailto:mext-bounces@ietf.org] > On Behalf > > Of Mohana Jeyatharan > > Sent: Monday, March 29, 2010 7:53 PM > > To: mext > > Subject: [MEXT] Any Comments for > > draft-jeyatharan-mext-flow-tftemp-reference-00 > > > > Hi all, > > > > During last IETF-77 MEXT session we could not present the ID > > draft-jeyatharan-mext-flow-tftemp-reference-00 and get the direct > > feedback from the WG. > > > > Would really appreciate if we can get some comments on this > draft and > > general opinion about this draft from the WG. > > > > The mechanism highlighted in this draft is a simple > mechanism to set > > flow binding rules for flows that have descriptors present > at the HA > > and MN, using a reference to the TFT as a flow descriptor. > > > > Thanks. > > > > BR, > > Mohana > > > > _______________________________________________ > > MEXT mailing list > > MEXT@ietf.org > > https://www.ietf.org/mailman/listinfo/mext > > > > > >
- Re: [MEXT] Any Comments fordraft-jeyatharan-mext-… Mohana Jeyatharan
- [MEXT] Any Comments for draft-jeyatharan-mext-flo… Mohana Jeyatharan
- Re: [MEXT] Any Comments for draft-jeyatharan-mext… Frank Xia
- Re: [MEXT] Any Comments fordraft-jeyatharan-mext-… Mohana Jeyatharan
- Re: [MEXT] Any Comments fordraft-jeyatharan-mext-… Frank Xia
- Re: [MEXT] Any Comments fordraft-jeyatharan-mext-… Frank Xia
- Re: [MEXT] Any Comments fordraft-jeyatharan-mext-… Mohana Jeyatharan