[AG-TECH] New HD-Vic 1.1 Beta trouble shooting.

Andrew Ford acf0659 at rit.edu
Fri Mar 6 13:13:31 CST 2009

Hi Jimmy,

We can't receive it here at RIT either. Would you be able to send me the IP
address of the sending machine? I would need that to do an mtrace.


2009/3/6 John I. Quebedeaux, Jr <johnq at lsu.edu>

>  Jimmy, I was able to multicast with Mike Daley earlier just fine.
> Something must be dropping (rockies?) your sources, etc. closer to you I
> think.
> I’m not able to get your multicast source on that address (
> with that vic. I would have to say the problem is in
> the U.S., at least for you, because Mike and I had no problems and I just
> tested:
> Multicast between LSU and NCSA, no problem
> Multicast between LSU and westgrid, no problem
> Multicast between LSU and APAG, no problem
> ARSC, no problem...
> Kisti.. No problem...
> You have a bridge by chance?
> (easy to test this way, setup a multicast source on one machine A, then
> take another machine B and bridge out to people’s bridges with machine B and
> see when it breaks, it’s a rough guide, but it’s easy to do in fact, you can
> see when there are one-way issues this way and which it is).. If you add a
> source on the machine B, you get to test it both ways. Be sure to test
> locally if you can so you know your sources are working on both first...
> Then.. Bridge out. ;-)
> So to test multicast to me, setup multicast sources on A, do bridging on B
> and hit LSU’s bridge with the B one. See if you see yourself and your
> multicast sources. If not... No multicast somewhere between us, work yourway
> backwards through the other USA bridges closer to you... Helps if you know
> the networks, I’m not so good at that. This is the other way to vaguely
> test....
> A real network person would do mtraces and stuff (I can’t mtrace from
> inside my campus, but could do it on other external routers, I just keep
> forgetting the commands the few times I’ve done it).
> -John Q.
> --
> John I. Quebedeaux, Jr.; Louisiana State University
> Computer Manager LBRN; 131 Life Sciences Bldg.
> e-mail: johnq at lsu.edu; web: http://lbrn.lsu.edu
> phone: 225-578-0062 / fax: 225-578-2597
> ------------------------------
> *From: *Jimmy Miklavcic <jimmy.miklavcic at utah.edu>
> *Date: *Fri, 6 Mar 2009 11:13:03 -0700
> *To: *"ag-tech at mcs.anl.gov" <ag-tech at mcs.anl.gov>
> *Subject: *[AG-TECH] New HD-Vic 1.1 Beta trouble shooting.
> If someone could download and install the beta version of HITLab's HD vic
> 1.1 and then connect to (Cardiff Venue at Manchester's
> VS) it would help troubleshoot why Cardiff and Utah is unable to see each
> other's stream. We each know that within our perspective countries, the
> feeds are viewable but for some reason, it's not getting across the
> Atlantic. I don't think that it's passing through the Bermuda Triangle. The
> HIT Lab in NZ was able to see it earlier.
> You can get the new beta vic at *
> http://www.hitlabnz.org/wiki/Access_Grid_-_HD* <
> http://www.hitlabnz.org/wiki/Access_Grid_-_HD>
> Thanks in advance.
> Jimmy
>  --
> Jimmy Miklavcic
> Multimedia Specialist
> Jimmy.Miklavcic at utah.edu <mailto:Jimmy.Miklavcic at utah.edu<Jimmy.Miklavcic at utah.edu>>
> 155 SOUTH 1452 EAST RM 405
> SALT LAKE CITY, UT 84112-0190
> Office: 801.585.9335
>  Fax: 801.585.5366
> http://www.anotherlanguage.org <http://www.anotherlanguage.org/>
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