Matthias' presentation of "Common API for "Transparent Hybrid Multicast - Update" Matthias' presentation of "Hybrid Multicast Implementation" John's presentation of "Application Layer Multicast Extensions to RELOAD" Thomas: Should authors include additional overlay multicast schemes? Varun Singh: SplitStream and Scribe are ok. Maybe, one should also include asynchronous multicast tree mechanisms. Alex' presentation: "Shared Resources and Distributed Conferencing in RELOAD" Varun: If you have different streams, do the focuses mixing streams? Alex: Yes. Varun: Is the focus structure constructed according to a hierarchy? Alex: It could be, but is open to implementers. Varun: Regarding the measurement setup: Does it include distributed focus scenario? Alex: No. Matthias: Can you explain the meausrement setup in more details? Alex: The setup focuses on implementation performance, i.e., enrollement service and overlay peers are located at different hosts in the same network. So we rule out network disturbances. Matthias: Have you also measured the path length depending on the overlay size? Alex: No. Matthias: Should be interesting. You can use it to cross-check results. Matthias: Have measured the ground truth of the P2PSIP implementation. Alex: No now, but we will do it.