All things related to multicast

[Brent Sweeny <>]

and unfortunately, the Abilene multicast map at the participant level
is still awfully spotty: we can tell fairly easily what connectors we
have msdp and PIM up with, but less about what happens beyond that--if
you don't see mroutes or SAs that doesn't mean they're not enabled.
And the map tends to indicate places where multicast has been sighted,
not whether it's currently enabled, as with the examples given here by
Rick and Ross.   So I'm still thinking about how that list could be
better automated.       Brent

On Wed, Oct 03, 2001 at 12:49:18PM -0500, Rick Summerhill wrote:
> On Wed, 3 Oct 2001, Lucy E. Lynch wrote:
> 
> > Marshall -
> > 
> > Nodes -
> > 
> > http://hydra.uits.iu.edu/~abilene/traffic/
> > 
> > i.e. the big connection points (Denver/LA/HOuston/Seattle/New York etc.)
> 
> I think the real point to this thread, is not just the connectors
> that are multicast enabled, but rather what happens down towards
> the edges.  In our gigapop, we've been multicast enabled for a long
> time, and we require any connections of member sites and/or state
> networks behind us to also be multicast enabled.   We just connected
> a new I2 member and the initial setup included multicast to us.
> 
> However, we find that multicast doesn't often reach the edges.
> Busy campus administrators, old equipment, and budgets often get
> in the way.  Moreover, administration of the network where a
> researcher is located may not be assigned to the central campus
> group, but rather the departmental administrator with no knowledge
> or understanding of multicast.
> 
> We did a video BoF after the presentations yesterday and queried
> people about how they viewed the presentations.  Some tried H.323,
> but most simply used Real, even those campuses that are multicast
> enabled ("I can't get it to my building yet", was a common complaint).
> 
> The same problem will almost certainly exist when we emphasize IPv6.
> 
> --Rick
> 
> --
> Rick Summerhill                          Executive Director, GPN
> 5008 Canyon Road                         
> 
> Manhattan, KS 66503                      Cell: 785-341-7878
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> 

-- 
Brent Sweeny            

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