All things related to multicast

[Bruce Curtis <>]

On Apr 3, 2007, at 1:07 PM, 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?
>
>
> 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.

  This beacon in the UK can hear me and I can hear it.  Also it  
shows that NYSERnet which is also on Internet2 has connectivity to/ 
from the beacon.

http://www.6pack.org/matrix/

  I still get the same results with asmping though.  I receive one  
multicast packet.

asmping -6 ff7e:140:2001:630:d0:f000:4321:1234 ssmping.ecs.soton.ac.uk
asmping joined (S,G) = (*,ff7e:140:2001:630:d0:f000:4321:1234)
pinging 2001:630:d0:f104::de80 from 2001:4930:95::203:93ff:feda:c552
  unicast from 2001:630:d0:f104::de80, seq=1 dist=16 time=141.740 ms
  unicast from 2001:630:d0:f104::de80, seq=2 dist=16 time=141.359 ms
multicast from 2001:630:d0:f104::de80, seq=2 dist=11 time=317.652 ms
  unicast from 2001:630:d0:f104::de80, seq=3 dist=16 time=142.194 ms
  unicast from 2001:630:d0:f104::de80, seq=4 dist=16 time=142.022 ms
  unicast from 2001:630:d0:f104::de80, seq=5 dist=16 time=141.687 ms
  unicast from 2001:630:d0:f104::de80, seq=6 dist=16 time=142.091 ms
  unicast from 2001:630:d0:f104::de80, seq=7 dist=16 time=142.069 ms
  unicast from 2001:630:d0:f104::de80, seq=8 dist=16 time=141.899 ms
  unicast from 2001:630:d0:f104::de80, seq=9 dist=16 time=141.867 ms
  unicast from 2001:630:d0:f104::de80, seq=10 dist=16 time=141.801 ms
  unicast from 2001:630:d0:f104::de80, seq=11 dist=16 time=141.907 ms



> 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


---
Bruce Curtis                         

Certified NetAnalyst II                701-231-8527
North Dakota State University