All things related to multicast

[Stig Venaas <>]

Nicholas J Humfrey wrote:
> Hi,
>
> The University of Southampton is connected to m6bone/Géant via a tunnel. 
> I am able to asmping and ssmping Stig's ssmping server in Norway ok. I 
> am unsure of the details of how m6bone is connected to Internet 2?

The topology is

Abilene -- GEANT -- RENATER -- M6Bone

Well, it's not clear exactly what is M6Bone, but there is a native
peering between Abilene and GEANT. RENATER (and some other European
NRNs) have native peerings to GEANT. RENATER hosts a number of
tunnels etc to various places, possibly including the Vatican. For
e.g. the Virgin radio and soton.ac.uk it goes natively (I think)
from GEANT to JANET, and then from JANET to Soton...

ssmping/asmping is IMO a good way to test the connectivity. I know
we have had working connectivity from several places in Europe to
I2 before. Pretty much all the routers should support embedded-RP
too.

Stig

> Using asmping to test multicast connectivity to Norway (using our own 
> embedded-RP):
> asmping -6 ff7e:140:2001:630:d0:f000:4321:1234 ssmping.uninett.no
>
> Using ssmping to test SSM connectivity to Norway:
> ssmping -6 ssmping.uninett.no
>
>
> We have an ssmping server on our network, are you able to ping it?
> ssmping -6 ssmping.ecs.soton.ac.uk
> asmping -6 ff7e:140:2001:630:d0:f000:4321:1234 ssmping.ecs.soton.ac.uk
>
>
> Anyone else had any success from Internet2?
>
>
> nick.
>
>
> On 3 Apr 2007, at 18:43, Bruce Curtis wrote:
>
> >   Have you made the IPv6 multicast streams available to Internet2?
> >
> >   I've tried to connect to ff7e:140:2001:630:d0:f000:8000:1217 but it 
> > doesn't work.
> >
> >   I have successfully viewed an IPv6 stream from the Vatican which 
> > also used enbedded RP.
> >
> >
> > On Apr 3, 2007, at 11:19 AM, Nicholas J Humfrey wrote:
> >
> > > Apologies for cross-posting.
> > >
> > >
> > > I have made three more of the Virgin Radio satellite streams 
> > > available on IPv4 and IPv6 multicast:
> > >
> > > - Virgin Radio Groove
> > > - Virgin Radio Classic Rock
> > > - Virgin Radio Xtreme
> > >
> > > More information is available at:
> > > http://www.multicast.org.uk/virginradio/
> > >
> > > They are all MPEG-1 Audio Layer-2 streams (payload 14) over RTP on 
> > > port 5004.
> > >
> > >
> > > Virgin Radio have also made some Windows Media Player multicast 
> > > streams available themselves:
> > >
> > > http://www.virginradio.co.uk/about_us/technology_services/multicast/
> > >
> > >
> > > Thanks,
> > >
> > > nick.
> >
> >
> > ---
> > Bruce Curtis                         
> >
> > Certified NetAnalyst II                701-231-8527
> > North Dakota State University