Minutes MBONE WG, RIPE 29

[Thomas Telkamp <]

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Draft minutes, RIPE Mbone WG meeting
RIPE 29, jan. 29th, 9:00-10:30, Amsterdam
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Chair: Kurt Kayser
Scribe: Thomas Telkamp


1. Administrative Issues 

- Agenda 

  1. Administrative Issues (5min)
          Reconition of scribe
          Agenda bashing
          Acceptance of last meetings minutes
  2. Open Action Points (5min)
  3. Proposal of a revised mbone topology for the european NRNs
          over ten-34.(15min) (Roberto Sabatino, DANTE)
  4. Cisco's latest information about IOS features (20-30min)
          Q and A with Cisco engineer (Graca Cavalho, Cisco)
  5. BGP Extenstions for Multiprotocol support (10min)
          (Peter Lothberg, STUPI)
  6. Deployment of a production Multicast network (10min)
          (Peter Lothberg, STUPI)
  7. Implementation update (10min)
          Microsofts NetShow player v2.1
  8. AOB

- Minutes of last meeting are accepted


2. Open action points:

AP 1.1 (Lars-Johan Liman) Who owns and operates current mailing-list?
       Done. WG info-Website (@RIPE) pointed to wrong mailing-list server 
       (it was the European MBone-list @sics.se). CLOSED

AP 1.2 (Kurt Kayser) obtain control of Mailing-list.
       Done. Together with the RIPE-NCC the Web-site was corrected and
       the mailing-list was cleared up a bit. IMHO.. The WG-ML 
       nevertheless has a slightly different name than all the other
       RIPE-MLs! (mbone-eu-op) which probably was the reason for confusing
       it with the 'other' Mbone list. CLOSED

AP 1.3 (all) send details of working multicast implementations to the ML.
       CLOSED, due to lack of input and of a cross reference to a nice
       archive maintained by Graeme Wood from the MICE project:
       http://mice.ed.ac.uk/mice/archive/

AP 1.4 (Kurt Kayser) collate response (of AP1.3) into a recommended list.
       CLOSED, due to the nature of closure of the last action point
       (AP1.3).

AP 1.5 (all) All WG members send any information on new tools and vendors
       to the list.
       CLOSED, due to lack of responses and too fast changing tools/vendor 
       implementations. If a pointer is found somewhere, please forward
       them to the Mailing-list and it will be postet on the WG's
       homepage.

AP 1.6 (Kurt Kayser) compile outcome of AP1.5
       CLOSED. Same reason as AP1.4.

3. Proposal of a revised mbone topology for the european NRNs over
   TEN-34, Roberto Sabatino (DANTE)

- a detailed version of this proposal can be found at:
  http://www.dante.net/~roberto/docs/RS-98-03.html

- Proposal Mbone structure on TEN-34.

- Currently double use of bandwidth (e.g. NL-DE) and several tunnels     over access links (CERN)

- Solution: Mbone distribution in the network, scalable setup

- Workstations will run mrouted

- Proposed topology:
  - no AMS-FRA link
  - access links only used once

- Migration:
  - setting up core tunnels + AT&T-Unisource + NORDUnet
  - migrate JANET to UK ws
  - GARR/GRNET to IT ws
  - etc..
  - start within a few weeks

- DANTE manages mrouted on ws

- No interferance with current Mbone during migration

- DANTE will contact Mrouter maintainers for migration

- All communications over the mbone-eu-op list



4. Cisco Multicast, Graca Cavalho (cisco)

- Slides: ftp://ftpeng.cisco.com/ipmulticast/networkers97/
  - Intro.{pdf,ps}
  - Advanced.{pdf,ps}

- Introduction:
  - RPF
  - source based tree, shared tree
  - dense/sparse mode
  - PIM (dense + sparse)

- Advanced:
  - scoping (TTL/admin scoped addresses)
  - caching multicast headers
  - rate limiting
  - sdr listening
  - auto-RP
  - sparse-dense mode
  - goals

- Patrick de Muynck: 
  Q: scalability of RP mechanism to entire Mbone? 
  A: subject of next presenatation


5. BGP extensions for Multiprotocol support, Peter Lothberg

- The Multiprotocol Extensions for BGP-4 allow BGP-4 to be used for
  routing reachability information for protocols other than IPv4, such   
  as IPv6. The extensions also allow for the clear handling of  multicast 
  RPF Information as a separate set of information from the unicast case. 

- MBGP is useful in large multicast networks and enables multicast   
  policy routing (Mbone!)

6. Deployment of a production Multicast network, Peter Lothberg

- Slides from David Meyer: http://antc.uoregon.edu/NANOG/Feb98/Multicast/

  [...here we ran out of time...]

7. Implementation updates, Kurt Kayser

- Kurt Kayser quickly tells that Microsoft Netshow supports multicast    
  and seems very promising (multiple CODECS, etc.)

- See: http://www.microsoft.com/netshow

8. AOB

- coffee! ;-)

- no new action points