[AG-TECH] IGMPv3, Source Specific Multicast, fully supported in Windows XP

[Ivan R. Judson]

Hm,  I know they have ssm software included with OM and that vic knows
how to take (from the command line) syntax that specifies at least a
source in a group.  And it's supposed to work.  Someone is currently (a
non-ag person) playing with this, we could drop them a line...

-Ivan

..........
Ivan R. Judson .~. http://www.mcs.anl.gov/~judson
Futures Laboratory .~.  630 252 0920
Argonne National Laboratory .~. 630 252 6424 Fax
 

> -----Original Message-----
> From: Robert Olson [mailto:olson at mcs.anl.gov] 
> Sent: Friday, August 16, 2002 8:31 AM
> To: judson at mcs.anl.gov; 'Tony Rimovsky'; 'Jay Beavers'
> Cc: ag-tech at accessgrid.org
> Subject: RE: [AG-TECH] IGMPv3, Source Specific Multicast, 
> fully supported in Windows XP
> 
> 
> do they address the problem of distributing the sending 
> sources around? or 
> is it at the level of giving vic a list of addresses.
> 
> Bill - in these days of intelligent switches, is it a valid 
> solution to 
> just assign a couple ports to a node with a VLAN dedicated to 
> the node 
> trunked to them and let the multicast traffic just flood 
> those one or two 
> ports?
> 
> --bob
> 
> At 08:25 AM 8/16/2002 -0500, Ivan R. Judson wrote:
> 
> >In the case of OM vic, this is already possible, fwiw.  The OpenMASH 
> >folks have been exploring ssm for awhile.
> >
> >--Ivan
> >
> >..........
> >Ivan R. Judson .~. http://www.mcs.anl.gov/~judson
> >Futures Laboratory .~.  630 252 0920
> >Argonne National Laboratory .~. 630 252 6424 Fax
> >
> >
> > > -----Original Message-----
> > > From: owner-ag-tech at mcs.anl.gov 
> [mailto:owner-ag-tech at mcs.anl.gov] 
> > > On Behalf Of Tony Rimovsky
> > > Sent: Friday, August 16, 2002 8:24 AM
> > > To: Jay Beavers
> > > Cc: ag-tech at accessgrid.org
> > > Subject: Re: [AG-TECH] IGMPv3, Source Specific Multicast, fully 
> > > supported in Windows XP
> > >
> > >
> > > In addition to the routing and forwarding issues that 
> Bill mentions, 
> > > there are application changes.  For example, vic and rat 
> need to be 
> > > able to say "i only want traffic from <list of sources> 
> in <group> " 
> > > or "i only want traffic from <list of source,group pairs>".
> > >
> > >
> > > On Fri, Aug 16, 2002 at 12:36:03AM -0500, Bill Nickless wrote:
> > > > At 10:01 PM 8/15/2002 -0700, Jay Beavers wrote:
> > > >
> > > > >Since I'm not a router bithead, can anyone give me a 
> heads up if 
> > > > >I should expect SSM to "just work" between Internet2 nodes?  Or
> > > might there be
> > > > >complications?
> > > >
> > > > Hi Jay,
> > > >
> > > > To answer your specific question: the Internet2 Abilene 
> network is 
> > > > ready and capable of running SSM, and has been for well over a 
> > > > year.
> > > >
> > > > That being said, the problem with SSM deployment revolves
> > > around the
> > > > need
> > > > for network edge devices like switches and routers to
> > > support IGMPv3.  It's
> > > > difficult to find Ethernet switches that support IGMPv3,
> > > and they're not
> > > > the most economical choices.
> > > >
> > > > In a strange inversion of the normal situation, the backbone is 
> > > > capable of SSM service well before the local area 
> networks of the
> > > connected sites.  If
> > > > you can find a site that supports SSM/IGMPv3 locally, it's
> > > a pretty good
> > > > bet that they can do SSM with most all other similar sites.
> > > >
> > > > ===
> > > > Bill Nickless    http://www.mcs.anl.gov/people/nickless
> > >  +1 630 252 7390
> > > > PGP:0E 0F 16 80 C5 B1 69 52 E1 44 1A A5 0E 1B 74 F7
> > > nickless at mcs.anl.gov
> > >
>