All things related to multicast

[(Kevin C. Almeroth)]

>>>>So, are we trying to protect against:
>>>>- brokenness?
>>>>- (malicious|ignorant) users who request data rates they can't handle?
>>>              ^^^^^^^^
>>>           this one, i hope. "unsuspecting" is another adjective that
>>>           might work.
>>
>>Why do we care so much about unsuspecting users in the multicast case
>>when we don't in the unicast case?  As far as I know, there's no
>>mechanism to prevent someone on a dialup line from clicking on
>>http://www.broadcast.com/broadband/* and getting 300kbps or more of
>>audio/video.

Bill, while I find your argument logical and reasonable I still think
"the fear" has some merit.

The question is whether something needs to be done, and if so, 
whether using address scoping is justifiable or not.

Anybody else have any suggestions?

-Kevin