[AG-TECH] ANL Lobby bridge

Michael Braitmaier braitmaier at hlrs.de
Mon Oct 11 10:07:40 CDT 2004

Hi Gilbert!

Basically you can just connect to the room you want the mc-address and ports 
from and once the AG-VenueClient connected you can view the address and 
ports by opening the venue properties in File->Properties
This gives you the data for the mc-address for the room. The unicast port 
mapping to these multicast ports are bridge dependent and can be configured 
by the one running the bridge through the config file of the QuickBridge 
application. In our case we bridge our own room by mapping mc-ports 
59922-59926 to the unicast ports 50096-50099. But as said, the unicast ports 
are a matter of configuration of the bridge.
In generall I realized that it is helpful to open ports above 50000 up to 
53000 (with some exceptions). This is the range where most unicast ports for 
multicast mapping are used. You should be able to also find that information 
in a file called vv.dat which accompanies the QuickBridge application used 
by the BridgeServer of AccessGrid.

Hope this helps

----- Original Message ----- 
From: "ORNELAS, GILBERT (JSC-DV3) (STU)" <gilbert.ornelas1 at jsc.nasa.gov>
To: "'Michael Braitmaier'" <braitmaier at hlrs.de>
Sent: Monday, October 11, 2004 4:40 PM
Subject: RE: [AG-TECH] ANL Lobby bridge

> Hi Michael,
> I have a quick question.  I am also having firewall problems and I
> need to talk to the admins so that they can open the appropriate ports. 
> My
> question is this: what are those appropriate ports or how do I find out 
> what
> they are?  Do I just ask them that I need them to open the appropriate
> unicast-multicast ports or what?
> Thanks.  Hope my question was not too broad or anything like that.
> Gilbert
> -----Original Message-----
> From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov] On 
> Behalf
> Of Michael Braitmaier
> Sent: Monday, October 11, 2004 4:24 AM
> To: ag-tech at mcs.anl.gov; jeremy at biochem.uthscsa.edu
> Subject: Re: [AG-TECH] ANL Lobby bridge
> Indeed we run a bridge for the ANL lobby unfortunately changes in our
> firewall configuration has locked the ports used for unicast-multicast
> mapping. We will take it down for the moment and see wether we can 
> convince
> our fw admins to open the appropriate ports.
> Michael
> ------------------
> Dipl.-Inf. Michael Braitmaier
> HLRS - Visualization / Video Conferencing
> University of Stuttgart
> Germany
> Website: http://www.hlrs.de/organization/vis/people/braitmaier/
> ----- Original Message ----- 
> From: "Jeremy Mann" <jeremy at biochem.uthscsa.edu>
> To: <judson at mcs.anl.gov>
> Cc: <ag-tech at mcs.anl.gov>
> Sent: Friday, October 08, 2004 4:25 PM
> Subject: RE: [AG-TECH] ANL Lobby bridge
> Ivan R. Judson said:
>> We don't bridge the lobby.
> Oh, ok, that explains it. Thanks!
> BTW, using the AG from home (RoadRunner cable) actually worked! But the
> major disadvantage is the bandwidth. Has anybody considered modifiying RAT
> for a greater compression codec?
> -- 
> Jeremy Mann
> jeremy at biochem.uthscsa.edu
> University of Texas Health Science Center
> Bioinformatics Core Facility http://www.bioinformatics.uthscsa.edu
> Phone: (210) 567-2672 

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