[nsp] multicast questions

[Siva Valliappan]

Hi Charles,

   i believe multicast is supported over RBE.  (been too long out of the
DSL space)

http://www.cisco.com/warp/public/cc/so/neso/dsso/global/madsl_wp.htm
http://www.cisco.com/warp/public/794/7200faq.html

it is definitely supported on the C10000 per:

http://www.cisco.com/warp/public/cc/pd/rt/10000/prodlit/2137_pp.pdf

but i can't find (in my cursory search) config guides for the 7200.

cheers
.siva




On Thu, 6 May 2004, Charles Sprickman wrote:

> Anyone?  It's not like I'm asking about ipv6... :)
>
> On Mon, 3 May 2004, Charles Sprickman wrote:
>
> > Hi,
> >
> > I've got a few questions about multicast, mostly Cisco, but there's some
> > other issues that perhaps some of you have dealt with.
> >
> > First issue, does anyone know if RBE (used for bridged DSL circuits coming
> > in on an ATM line) passes multicast?  Meaning, does it look like a LAN to
> > multiple hosts in the same subnet that are all bridged?  From what I can
> > see so far it seems not, but it would be very helpful if someone could
> > confirm that.
> >
> > The second issue is more generic, and I apologize for bringing this to
> > -nsp, but I have to imagine some of you have done this before.
> >
> > I need to make multicast "work" for a group of 10 DSL lines.  I thought
> > this would be simple; just bridge all of them using RBE and be done with
> > it.  The server is Window Media server on W2K Server.  It seems it will
> > not allow any multicast stations to be defined unless you enable the W2K
> > routing services and setup IGMP.  However, if you do this, the stream is
> > not available on the "local" all-hosts or all-routers IPs; it's off in
> > it's own little range.  So that complicates things.
> >
> > So now I'm at a loss.  The multicast support on DSL CPE routers seems a
> > bit dodgy, and for the most part completely undocumented by the vendor
> > (Netopia and Zyxel are the choices).  And since I don't know what RBE does
> > with multicast, I may need a router at all sites.  Argh.  Any pointers to
> > how to setup the Cisco that terminates all these connections to handle
> > this scenario?
> >
> > I've had little luck finding a good high-traffic multicast list,
> > especially one that will even touch a question that veers into the windows
> > world.
> >
> > Any help at all is appreciated, even a pointer to another good list.
> >
> > Thanks,
> >
> > Charles
> >
> > --
> > Charles Sprickman
> > spork at inch.com
> >
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