All things related to multicast

[debbie fligor <>]

We're back on the global multicast scene with most things working,  
but as I try and use beacon.dast.nlanr.org to look at how well things  
are being seen and make sure it's really all working, I'm finding  
that my host is reporting seeing sources that tcpdump clearly shows  
are not making it to my network.  So I thought I'd bring this up to  
revisit ...

Caren -- did this ever get put together for IPv4?  I looked through  
the list archives for "dbeacon" and didn't see any announcements that  
I might have otherwise missed.  You had mentioned later last fall on  
the beacon group that you thought they had something up now, but I  
can't find a posting on that list either.

The GR-NOC tools page only has the NLANR beacon under multicast  
tools, so I couldn't find a group there.

I think we all agree this would be handy, the only question is if  
there is already one we could be using or someone needs to offer up a  
GLOP address -- since we don't need a central server, we all just  
start using it.  I can provide one if no one has one in use for this  
already.


To go along with this, it occurred to me that it would be handy if  
there was a web page (wiki?) where we would list what hosts we have  
trying to talk on that group (and the URL if you have matrix running  
on the host), as there's no central server to show you who you're not  
seeing, if you're not seeing them (and no one else you can see is  
seeing them).  I can trivially put up a traditional web page, but not  
a wiki.



On Jun 8, 2006, at 10:43, Caren Litvanyi wrote:

> On Thu, 8 Jun 2006, Hugo Santos wrote:
>
> > Hi,
> >
> >   What was the problem? It is used extensively in m6bone.
> Unknown, he says he was doing some funky things to diagnose
> an SSM problem, and the daemon version would die ocasionally.
> Didn't have any good debug info to give me on the problem.
> That's all I know.  He restarted it and it is running.
> I have not had time to help diagnose the SSM problems.
> I think he hopes to have a v6 one running decently by
> joint techs, looking into v4, we were going to use some
> glop out of Abilene space.  I'll see if I can get him to
> join the list.  ;-)
> Caren
>
>
> >   Hugo
> >
> > On Thu, Jun 08, 2006 at 03:19:03PM +0000, Caren Litvanyi wrote:
> > > Well, we have been working on dbeacon out of GlobalNOC.
> > > Our sysadmin guy working on it though is having a little
> > > trouble with it dying frequently.  So it is not yet ready
> > > for primetime apparently.
> > > Shall we continue this effort?
> > > Caren
>
>
> ------------
> Caren Litvanyi, network engineer
> Global Research NOC at Indiana University
>
> o:812-856-4576  c:720-839-7739

-----
-debbie
Debbie Fligor, n9dn       Network Engineer, CITES, Univ. of Il
email: 

          <http://www.uiuc.edu/ph/www/fligor>
                   "My turn."  -River