Re: [ppsp] WG Last Call for draft-ietf-ppsp-problem-statement

Hi,

We would like to introduce a new Use Case that may be of interest.

The description would be as follows:

5.4. Proxy service supporting P2P streaming 

For applications where the Peer is not co-located with the Media Player in the same device (e.g. the Peer is located in a Home Media Gateway), we can use a P2P Proxy, as shown in figure 6.

As shown in this figure 6, the P2P Proxy terminates the Tracker and Peer protools, allowing the legacy presentation devices to access P2P content. In this figure the DLNA protocol is used to communicate with the presentation devices due to its wide deployement in the industry, but of course other protocols can be used.

   +----------------------------------------------------------------+
   |                                                                |
   |  0:Tracker Protocol +---------+                                |
   |  +----------------> | Tracker |                                |
   |  |                  +---------+                                |
   |  |                       ^                                     |
   |  |                       |                                     |
   |  |                    2: | Tracker Protocol                    |
   |  |                       |                                     |
   |  |             +---------|-------------------------------------|
   |  |             |         V                                     |
   |  |             |     +---------+                               |
   |  |  +----------|---> |  P2P    |<-------------------+          |
   |  |  |          |     |  Proxy  |       DLNA         |          |
   |  |  |3: Peer   |     +---------+       Protocol     |          |
   |  |  | Protocol |                                    |          |
   |  |  |          |                                    |          |
   |  V  V          |                                    V          |
   |  +-----------+ |        Home Domain            +------------+  |
   |  |  Outward  | |                               | DLNA  Pres.|  |
   |  |  Peer     | |                               | Devices    |  |
   |  +-----------+ |                               +------------+  |
   +----------------------------------------------------------------+

Figure 6 Proxy service Supporting P2P, with DLNA interface, for Home application

Regards,

Rui Cruz
rui.cruz@ieee.org

IST/INESC-ID/INOV - Lisbon, Portugal
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On 12/07/2012, at 09:46, stefano previdi wrote:

> All,
> 
> we're (re)spin the WG last call process for the problem statement and 
> requirements draft. Note that the doc (originally separated drafts) 
> went already through one cycle of WG and IESG review so we don't expect 
> massive/substantial updates.
> 
> Title           : Problem Statement and Requirements of Peer-to-Peer Streaming Protocol (PPSP)
> Author(s)       : Yunfei Zhang
>                  Ning Zong
> Filename        : draft-ietf-ppsp-problem-statement-09.txt
> 
> https://datatracker.ietf.org/doc/draft-ietf-ppsp-problem-statement
> 
> Thanks.
> 
> Yunfei & Stefano.
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