[AG-TECH] Bridge server

Michael Braitmaier braitmaier at hlrs.de
Wed Apr 19 09:33:01 CDT 2006


Jeremy Mann schrieb:

>So basically I have to manually bridge each room. In my config file I
>tried to set the entire VenueServer to only use a range of ports, then I
>entered ports for the rooms I wanted to configure statically. But I still
>came across that "Address already in use" problem.
>
>For example, I have the VenueServer set to 5000-5200 and 4 Venues to 5202
>on up.
>  
>

I don't specifiy the ports for the venue server overall. Beside I think 
bridging a whole venue server is not that well supported.
You have to specify the ports for each venue seperately. If you refer to 
the ports of the VenueServer itself, these are configured through the 
VenueServer
configuration. As fas I know through the VenueServer.cfg file, but I 
didn't succeed in configuring it yet.

Michael

>Michael Braitmaier said:
>  
>
>>I am doing basically the same. I restrict the range of the ports for
>>unicast for a specific venue.
>>
>>Config-File example:
>>
>>[https://rusagvideo.rus.uni-stuttgart.de:8000/Venues/000001026deebc1400c0006c00230006555]
>>type=Venue
>>portMin=50096
>>portMax=50099
>>
>>One of the problems rising with this configuration method is that
>>normally AG selects ports on a random
>>pattern put of the range you specified in the config file.
>>Ports for rat and vic are allocated sequentially.
>>So first rat gets assigned 50096 for example.
>>When the port for vic should  be determined, it can happen due to the
>>nature of the random allocation
>>that for vic also 50096 is initially selected. This of course leads to a
>>"Address already in use" error.
>>I avoided the problem by patching the AccessGrid files responsible for
>>port allocation to keep a list
>>of ports which are in use and have the allocation algorithm first check
>>if a port the algorithm wants to allocate
>>isn't in use yet.
>>Otherwise you have to restart the bridge server until you don't get the
>>"address already in use" error to be sure you really have
>>video and audio correctly bridged.
>>
>>Michael
>>
>>
>>Jeremy Mann schrieb:
>>
>>    
>>
>>>Thomas D. Uram said:
>>>
>>>
>>>      
>>>
>>>>Which version of AG software are you using for BridgeServer and
>>>>VenueServer?
>>>>Can you post your full bridge cfg file?
>>>>
>>>>
>>>>        
>>>>
>>>AG 2.4. Attached is the config file. Worth noted is that I no longer get
>>>those python errors, however, now when I start it, several of the venues
>>>aren't bridged because the bridgeserver says the address is already in
>>>use
>>>
>>>
>>>
>>>
>>>      
>>>
>>--
>>------------------
>>Dipl.-Inf. Michael Braitmaier
>>HLRS - Visualization / Video Conferencing
>>University of Stuttgart
>>Germany
>>Phone: ++49 711 685 5996
>>Fax  : ++49 711 682 357
>>Website: http://www.hlrs.de/people/braitmaier/
>>
>>    
>>
>
>
>  
>


-- 
------------------
Dipl.-Inf. Michael Braitmaier
HLRS - Visualization / Video Conferencing
University of Stuttgart
Germany
Phone: ++49 711 685 65996
Fax  : ++49 711 682 357
Website: http://www.hlrs.de/people/braitmaier/




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