[Sumover-tech] VIC and the number if possible participants

[Marc Manthey]

On Sep 6, 2007, at 2:38 AM, Douglas Kosovic wrote:
> It can be either unicast or multicast. If the vic executable was  
> built with IPv6 support, then it can be IPv6 also.
> For multicast, no other program is required, but each of the sites  
> will need to be multicast capable and have multicast working  
> between them. But if you need audio as well, RAT would typically  
> also be used..

morning Doug,

i have no multicast yet ,just a static ipv4 adress but  i am working   
with  openwrt.org
<http://forum.openwrt.org/viewtopic.php?pid=53004>
  and want to set up a tunnel with sixx.net, in the next weeks ,guess  
this should work better then.
  The audio part is clear to me;)

> The AccessGrid toolkit (which uses vic and rat) uses a unicast  
> bridge to allow multiple unicast sites to connect and also provide  
> a bridge between multicast and unicast. There are about 30 bridges  
> registered with the AccessGrid bridge repository.

yep i understand that , thats similar with my reflector it acts like  
a "bridge" aswell. But i understand if i had multicast people could  
connect
but need to have multicast awell and when you got unicast you need  
the "bridge" to stream the data to the connected client.

>> Is the number of participants that could join a conference  
>> "limited" ?
>
> It's mainly limited by bandwidth and the number of connections a  
> unicast bridge can cope with before starting to bog down  
> performance wise. If you enter the AccessGrid3 ANL lobby, you'll  
> often see lots of video streams, last time I looked there were  
> about 20.

i will try again, thanks!!!, seems like i have a wxpython problem on  
my mac , maybe a clean istall would do it , but i got so may stuff  
running

> Access Grid 3.1 beta1 can be downloaded from:
>   http://www.accessgrid.org/software
> and it comes bundled with UCL vic and rat from the SUMOVER SVN  
> repository.

yep saw that announcing awell , could it cause my error because i  
installed both ? i was downloading and installing
but i got an error when i want to start the "access venue client"

Aug 31 22:07:45 mini mDNSResponder: NAT Port Mapping (LLQ event  
port.): timeout
/Applications/AccessGridToolkit3.app/Contents/Resources/bin/ 
AGLauncher3.py:11: DeprecationWarning: The wxPython compatibility  
package is no longer automatically generated or actively maintained.   
Please switch to the wx package as soon as possible.
   from wxPython.wx import *
Run: /Applications/AccessGridToolkit3.app/Contents/Resources/bin/ 
VenueClient3.py
args:  []
/Applications/AccessGridToolkit3.app/Contents/Resources/bin/ 
VenueClient3.py:22: DeprecationWarning: The wxPython compatibility  
package is no longer automatically generated or actively maintained.   
Please switch to the wx package as soon as possible.
   from wxPython.wx import wxPySimpleApp, wxTaskBarIcon, wxICON_ERROR
Traceback (most recent call last):
   File "/Applications/AccessGridToolkit3.app/Contents/Resources/bin/ 
VenueClient3.py", line 35, in ?
     from AccessGrid.VenueClientUI import VenueClientUI
   File "/Applications/AccessGridToolkit3.app/Contents/Resources/lib/ 
python2.3/site-packages/AccessGrid3/AccessGrid/VenueClientUI.py",  
line 40, in ?
     from AccessGrid.UIUtilities import AboutDialog, MessageDialog
   File "/Applications/AccessGridToolkit3.app/Contents/Resources/lib/ 
python2.3/site-packages/AccessGrid3/AccessGrid/UIUtilities.py", line  
27, in ?
     from wxPython.lib.imagebrowser import *
   File "//Library/Python/2.3/wx-2.8-mac-ansi/wxPython/lib/ 
imagebrowser.py", line 11, in ?
     GetSize = wx.lib.imagebrowser.GetSize
AttributeError: 'module' object has no attribute 'GetSize'

greetings and thanks a lot

marc
>
>
> Cheers,
> Doug
>
>