[AG-TECH] Access Grid 3.0 beta1 available !

Jeremy Mann jeremy at biochem.uthscsa.edu
Mon Jan 30 09:38:51 CST 2006

Zsolt, as for narrowing the port range used by the AG client, it has more
to do with how the admin sets up his/her AG venueserver. If the admin sets
it up with the default settings, the multicast UDP ports are dynamically
assigned, so they are all over the place. The multicast and bridge unicast
ports can be statically assigned but only if the admin chooses to do so.

Nagykaldi, Zsolt F. (HSC) said:
> It seems that most practical problems during implementation come from
> firewall issues. Are you guys planning to (at least) narrow the UDP port
> range for VIC and RAT, or maybe (in my dreams) tunnel all audio/video
> traffic through a few number of ports that are usually open? I have been
> networking with a lot of people who are desperate to set up their nodes
> and they hit a brick wall every time it comes to push changes through
> their IT departments, who are freaking out about the idea of opening ports
> in such a wide range. More and more people would like to use the system
> via PIGs and not necessarily big institutional nodes that require weeks,
> if not months of negotiations and arm-twisting each time a new client is
> added at a new location. (The AG Connector would be really helpful, except
> it causes an ominous looping drop of all audio-video connections, as it
> has been reported before, and it is very unreliable). Extra features in
> v3.0 are nice, but I truly believe that the firewall/ports issue is the
> most significant barrier to wider adoption of the Toolkit.
> Zsolt
> _ _ _
> Zsolt Nagykaldi, PhD
> Research Associate, Clinical IT Specialist
> University Of Oklahoma Health Sciences Center
> Department Of Family And Preventive Medicine
> Oklahoma Center For Family Medicine Research
> 900 NE 10th Street
> Oklahoma City, OK 73104
> Phone: (405) 271-8000 Ext.:1-32212
> Fax:     (405) 271-1682

Jeremy Mann
jeremy at biochem.uthscsa.edu

University of Texas Health Science Center
Bioinformatics Core Facility
Phone: (210) 567-2672

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