1. Introduction, Agenda - Chairs           (5 min)

No comments on the agenda.

2. A Common API for Transparent Hybrid Multicast -
   Update of draft-irtf-samrg-common-api-01
   - Matthias Waehlisch                   (15 min)

Stig: How works the canonical mapping? 
Matthias: Use the namespace indicator and values from URI.
Stig: There is a recent draft for 4 in 6 multicast embedding.


3. HAMcast - An Implementation of a System-centric 
   Middleware Component for Universal Multicast
   - Sebastian Meiling                    (20 min)

Unknown member: Page 18.. can give some reason why ipc communication is critical?

Sebastian: The IPC passes several hundred packets per second, this is a performance challenge.


4. Application Layer Multicast Extensions to RELOAD
   draft-kolberg-sam-baseline-protocol
   - Mario Kohlberg                       (15 min)

No comments.

5. Labelcast Protocol
   Update of draft-sunzhigang-sam-labelcast-01
   - Whang Hui                            (15 min)

Jörg Ott: Why not use existing protocols? Why not IP, why another layer?

Hui: because its for IPTV transmission. And so you get more state
information. Its to detect stream state

Jörg: RTP can do this also...

Hui: RTCP is not currently used

Thomas: Why not build on top of TCP tunnels? (to hui) Modifying transport is a big issue ..

HUI: IPTV comes from another Network technology.

Jörg: This is not true, I can receive IPTV via DSL network at home.

Thomas: For future work, it would be helpful to clearly work out issues and state the problems  you are trying to solve. Please explain the contribution of your approach that cannot not be done by existing protocols.

Demo:-----

Thomas: Please explain the setup. How large are the stream &  how many receivers... 

Hui: Its in a local network an 100 Mbit LAN 2 or 3 receivers

???: Did you modify the transport protocol?

Hui: Yes, because its special IPTV 

???: why not use MPLS

Hui: Labelcast must only be deployed on the edge routers. MPLS everywhere

???: Is the video monitor hard or software?

Hui: Software. 

6. P2MP Streaming Media Delivery
   draft-litao-p2mpsmd-problem-statement-00
   - Tao Li                               (15 min) 

Thomas: Is the core problem that traffic engineering mechanism are missing while distributed media ?

Li: yes, in part

Chair: What are needs and realistic use cases for optimizing the tree topology? Do you have measurements and experiences?

Li: is a TODO. 

Thomas: It would be good to validate the need of tree optimizations?

Li: Network state knowledge is useful to optimize the routes.

-----

Jörg: Deadline extended for ipt commm. This year, also IPTV scope of iptcomm
2011

7. Shared resource in RELOAD as a primitive for 
   coordinating group communication
   draft-knauf-p2psip-share-00
   - Gabriel Hege			  (15 min)

Thomas: Other ideas for applying this mechanism to grou communication?

No comments.

8. Document Status & Future Work - Chairs (15 min)

Robert: explain please nr 3 and 6. Clarificationm please

Chair: 6. Establish lightweight scheme for authentication for senders. Like
CGIs, i.e., ability to authenticate sender, use of infrastructure and verify whether a received packet is valid or not without PKI.

Robert: In my business this topic is very important.

Li: Interested in testbed. 

Thomas: John is concepting the testbed. It is meant as a distributed environment with access to IP layer multicast for making hybrid multicast experiments on a certain scale. Several partners have confirmed. 

Li: can it use planet lab?

Matthias: Not intended to integrate testbed onto planetlab. But experiments can be extended onto Planet-lab.

Li: IPTV over the testbed would be interesting.

Matthias: Proposed to invite other RGs or WGs for cooperation / collection / advertisement of future research issues.