Re: [mif] about draft-hui-ip-multiple-connections-ps-02

[Min Hui <[e-mail]>]

Hi, Behcet

Pls see my reply below, thx.

2009/3/21, Behcet Sarikaya <[e-mail]>:
>
> Hi Min,
>   Pls see inline, thx.
>
> Behcet
>
> ________________________________
> From: Min Hui <[e-mail]>
> To: marcelo bagnulo braun <[e-mail]>
> Cc: mif <[e-mail]>
> Sent: Friday, March 20, 2009 3:47:24 AM
> Subject: Re: [mif] about
> draft-hui-ip-multiple-connections-ps-02
>
> Hi,
>
> pls see inline reply. thx.
>
> 2009/3/19 marcelo bagnulo braun <[e-mail]>:
> > Min Hui escribió:
> >>
> >>>
> >>>>
> >>>>    2.2.3. TOS consideration
> >>>>
> >>>>  TOS can be a parameter of routing item to indicate which kind of IP
> >>>>  data is suitable to deliver by this routing. The multiple interfaces
> >>>>  will connect to multiple access networks, so that the preference of
> >>>>  TOS need to be merged to have a better performance of data delivery.
> >>>>  For example, the WiFi access could indicate itself has broader
> >>>>  bandwidth comparing with 2G access, and set the TOS as broad
> >>>>  bandwidth. When another interface connects the Ethernet, the TOS is
> >>>>  also set as broad bandwidth preferred. In this situation, it needs
> >>>>  some mechanism to merge and reorder the TOS getting form multiple
> >>>>  interfaces.
> >>>>
> >>>> I am not sure how widely used is this...
> >>>>
> >>>> A: As depicted in RFC1122, TOS is a necessary parameter to choose a
> >>>> suitable routing. And different applications have different
> >>>> requirements of access network, which can be reflected as TOS. So we
> >>>> think TOS will be useful in multiple interface situations.
> >>>>
> >>>>
> >>>>
> >>>
> >>> right, my question was how widely used is this. I mean how much of the
> >>> internet traffic actually sets the TOS?
> >>>
> >>
> >> The 3G network use TOS as one of the QoS parameters, and we suppose to
> >> use it in the multiple interfaces situation.
> >>
> >>
> >
> > ok, but does any other network uses this?
> > I mean, if only 3g networks use this, this is only a problem when
> > simultaneously connecting to multiple 3G networks, so i am not sure how
> > common this is
> There are 3GPP and 3GPP2 mobile network which have been deployed, both
> of them support it.
> Some network use it for Wifi access network as well.
> There are more and more motivation to do different service quality
> categorization,
> such as put the p2p more low level.
> [behcet] I believe you. I think it would be more convincing if you could
> give us which standard, e.g. 23.401 this is mentioned. Without any evidence
> we just need to believe you..
>
3GPP standard 24.008 can be refered to, thx.

>