Re: [802.21] [DNA] Prefix information for link identification in DNA
Hi Stefano,
I agree: given the three basic definitions (L2, L3, and MIH PoA), the meaning of
"L2 MIH PoA" and "L3 MIH PoA" is immediately clear.
Andrea
"Stefano M. Faccin" wrote:
>
> Andrea,
> this looks good to me. i would just add that we can also have L2 MIH PoA and L3 MIH PoA to have a complete picture.
> Stefano
>
> ________________________________
>
> From: ext Andrea Francini [mailto:francini@LUCENT.COM]
> Sent: Fri 9/30/2005 10:25 AM
> To: STDS-802-21@listserv.ieee.org
> Subject: Re: [802.21] [DNA] Prefix information for link identification in DNA
>
> Trying to finalize one part of the ongoing discussion: the PoA definition.
>
> I have the impression that some people consider the capability of supporting MIH
> as part of the definition of PoA, while other people don't, giving it only a
> network connectivity value.
>
> What about the following:
>
> 1. General definition of PoA:
>
> a. "PoA is the first point in the network that acts as the UE counterpart for a
> specific type of communication relationship (e.g., L2, L3, MIH)."
>
> 2. Accordingly, the following three specific definitions could be added:
>
> b. "L2 PoA is the network-side endpoint of the L2 link by which the UE connects
> to the network."
>
> c. "L3 PoA is the closest network counterpart for the UE that requires an L3
> address to be identified in UE-generated messages."
>
> d. "MIH PoA is the closest network counterpart of the UE for MIH exchanges."
>
> Thanks,
>
> Andrea
>
> "Stefano M. Faccin" wrote:
> >
> > Peretz, nobody denies that. The issue here is that what you have been saying doe not allow for deployments that do not use any MIH services at L2. Even if you may not believe these deployments will happen, there are vendors and operators that do believe that their networks will only use MIH services at L3, at least for the initial deployments. Thjerefore our model and definitions must allow for this. In this model, there is no MIH @ L2, and the PoA is in the subnet where the UE gets its IP address.
> > Stefano
> >
> > ________________________________
> >
> > From: ext Peretz Feder [mailto:pfeder@LUCENT.COM]
> > Sent: Fri 9/30/2005 10:06 AM
> > To: STDS-802-21@listserv.ieee.org
> > Subject: Re: [802.21] [DNA] Prefix information for link identification in DNA
> >
> > "I do not understand how any one would conclude that the MIH services are only between UE and the AP/BS."
> >
> > The discussion is PoA and not services. The 1st PoA could be L2 for IS and CS. With no PoA at L2, the poor UE will have no MIH services until IP is established. The performance will be very different, not to mention a UE with a bridging only attributes, such as 802.16 terminal with only Ethernet CS (no IP CS).
> >
> > Nobody is saying MIH services are strictly between UE and BS. Performance will be better when PoA L2 MIH is established.
> >
> > Peretz
> >
> > On 9/30/2005 10:50 AM, Srinivas.Sreemanthula@nokia.com wrote:
> >
> > The MIIS is provisioned between MIH in UE to a network counter part any
> > where in the network. This network node can either act as a proxy info
> > server or an info server. We also identified MIIS requires L3 and hence
> > the WG went through the exercise of identifying all the UL requirements
> > and establish coordination with IETF. However, in that discussion, there
> > was no reference to whether the AP/BS was MIH or non-MIH capable.
> >
> > Even if we leave out the info services from the discussion, I do not
> > understand how any one would conclude that the MIH services are only
> > between UE and the AP/BS.
> >
> >
> >
> > -----Original Message-----
> > From: ext Peretz Feder [mailto:pfeder@lucent.com]
> > Sent: Friday, September 30, 2005 9:39 AM
> > To: Sreemanthula Srinivas (Nokia-NRC/Dallas)
> > Cc: STDS-802-21@listserv.ieee.org
> > Subject: Re: [802.21] [DNA] Prefix information for link
> > identification in DNA
> >
> > Are you indicating attaching to a non MIH enabled AP/BS and
> > receiving MIH IS over R4 from a remote MIH info server?
> >
> >
> > On 9/30/2005 10:27 AM, Srinivas.Sreemanthula@nokia.com wrote:
> >
> >
> >
> > Did we miss the whole discussion of MIH information services?
> >
> >
> > ________________________________
> >
> > From: ext Peretz Feder [mailto:pfeder@LUCENT.COM]
> > Sent: Friday, September 30, 2005 9:16 AM
> > To: STDS-802-21@LISTSERV.IEEE.ORG
> > Subject: Re: [802.21] [DNA] Prefix information for link
> >
> >
> > identification
> >
> >
> > in DNA
> >
> >
> > "you have first to be very clear about what you're attaching"
> >
> > I would think that in 802.21, we first attach the UE's
> >
> >
> > MIH to a BS/AP
> >
> >
> > that supports MIH capability.
> >
> > On 9/30/2005 8:55 AM, Stefano M. Faccin wrote:
> >
> >
> > Mike, well said!
> > Stefano
> >
> > ________________________________
> >
> > From: ext Mike Moreton [mailto:mm2006@MAILSNARE.NET]
> > Sent: Fri 9/30/2005 3:09 AM
> > To: STDS-802-21@listserv.ieee.org
> > Subject: Re: [802.21] [DNA] Prefix information for link
> > identification in DNA
> >
> >
> >
> > To extend (I think!) Stefano's point, before
> >
> >
> > determining what the PoA
> >
> >
> > is, you have first to be very clear about what you're
> >
> >
> > attaching. Just
> >
> >
> > saying "the terminal" makes no sense, because different layers in the
> > terminal's protocol stack attach to different places in the network.
> >
> > For example, the PHY layer attaches to the AP,
> >
> >
> > but the TCP layer
> >
> >
> > attaches to the destination host.
> >
> > Mike.
> >
> >
> >
> > -----Original Message-----
> > From: Stefano M. Faccin
> > [mailto:stefano.faccin@NOKIA.COM]
> > Sent: Friday, September 30, 2005 1:08 AM
> > To: STDS-802-21@listserv.ieee.org
> > Subject: Re: [802.21] [DNA] Prefix
> >
> >
> > information for link
> >
> >
> > identification in DNA
> >
> >
> > Yoshihiro,
> > I'm not sure why should restrict the
> >
> >
> > term PoA to have only a
> >
> >
> > L2 meaning as you suggest below. I
> >
> >
> > think we should
> >
> >
> > distinguish clearly between L2 PoA and L3 PoA.
> > For me, the L3
> > PoA is where the terminal gets IP conenctivity.
> > E.g. for GPRS
> > the L3 PoA is the IP link on which the
> >
> >
> > GGSN is located. In
> >
> >
> > L2, PoA is the point where the access-specific
> > L2 connection
> > terminates (e.g. an AP in 802.11).
> > Stefano
> >
> >
> >
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