[AG-TECH] IGMPv3, Source Specific Multicast, fully supported in Windows XP
Tony Rimovsky
tony at ncsa.uiuc.edu
Fri Aug 16 10:37:23 CDT 2002
http://bmrc.berkeley.edu/mhonarc/openmash-users/msg00345.html
syntax is vic s,g/port and, as of June 2002, vic could only receive
from one s,g pair.
Jay, that note also says "there is no version of winsock that supports
ssm -- until then it can't be done on windows". given the information
you have collected, this can probably work under xp.
On Fri, Aug 16, 2002 at 10:05:15AM -0500, Ivan R. Judson wrote:
>
> 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
> > > >
> >
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