At 10:40 03/01/01 -0500, Marshall Eubanks wrote:
You left out that SAP/SDR will not support SSM. There has been a big argument about this in the SSM IETF WG. The consensus is that source info will be communicated out of band (i.e., web pages). As usual, I take the minority viewpoint. I think that SSM will NEED something like SAP. Just think about doing a beacon project where beacons can join at will - how would you know in SSM ? I think that there sorts of consideration will lead to a re-inventing of the SAP wheel in some scalable fashion.
IPmc requires many debugging tools, builtin to the native router, to make it all work. Without sap/sdr capabilities, SSM will never take off. Having all the web pages out there are nice extras, but do not replace the needed builtin tools. -Hank
Telling your customers to use M-BGP/PIM-SM/SSM *IN ADDITION TO* M-BGP/PIM-SM/MSDP will indeed help reduce the amount of global MSDP state carried in routers over the long term, and that's arguably a very good thing. I look forward to ubiquitous support of IGMPv3 in lots of vendors products--whether they be layer 2, layer 3, software, or whatever. === Bill Nickless http://www.mcs.anl.gov/people/nickless +1 630 252
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-- Regards Marshall Eubanks
T.M. Eubanks Multicast Technologies, Inc 10301 Democracy Lane, Suite 410 Fairfax, Virginia 22030 Phone : 703-293-9624 Fax : 703-293-9609 e-mail : tme@on-the-i.com tme@multicasttech.com