[AG-TECH] Bridging on TVS?

[Michael Miller]

This brings up an interesting question of cooperation and coordination for 
unicast support:

If I run a BridgeServer on my network for my VenueServer and my multicast 
goes down, the BridgeServer is useless.  What I would need is a 
BridgeServer on someone else's network that points to my VenueServer.  What 
policies are in place to provide a bridge for another institution and they 
perhaps reciprocate?  How would one coordinate fulfilling several requests 
for such arrangements?  Does the BridgeServer software have facility for 
acting as a bridge for several VenueServers or would I have to run a 
separate instance of the bridge software for each VenueServer I want to 
bridge?(I'll admit to not having tried the bridge software yet)

Just pondering...

Michael Miller
NCSA


P.S.  Sorry Tom, I meant for this to go to the list...

At 12:28 AM 9/9/2003, you wrote:
>All correct, yes.  The bridge server is software that talks to venues to 
>understand the need for bridges, and starts QuickBridge appropriately.
>There may be multiple run for a venue, and they should be identified by 
>name and location, allowing a user to choose geographically.
>
>Tom
>
>
>Randy Groves wrote:
>
>>The question arises from the way that the QuickBridge has been used in 
>>the past - someone puts up the bridge as a separate service (and 
>>different machine) from the venue server.  So your answer clarifies to me 
>>one of the new modes of operation.   And from your statement that the 
>>bridge server is run 'against' the venue server, I infer that the bridge 
>>server need not be on the same machine as the venue server, and also that 
>>there could be more than one bridge server run against the same venue 
>>server - thus providing a backup.  Are those correct inferences?
>>
>>-randy
>>
>>
>>
>>>>And how would one find a bridging service if it wasn't installed on the 
>>>>venue server?  Unless the service gets advertised in some way, there is 
>>>>no way that I can see to point yourself to an arbitrary bridge.
>>>
>>>
>>>I'm not sure that I understand the question, but I'll try.  A bridge 
>>>server is run against a venue or venue server explicitly.  It's 
>>>availability in a venue is evident from its appearance on the list of 
>>>bridges displayed when the user selects "Use Unicast".  So, the 
>>>existence of a bridge service outside of a venue has, essentially, no meaning.
>>>I hope that answers your questions, Randy.  If not, let me know.
>>>
>>>Tom
>>
>>
>
>Thanx,
>
>Michael Miller
>System Engineer
>Visualization Technology Support
>Computing and Data Management
>National Center for Supercomputing Applications
>University of Illinois - UC
>217-649-0747
>
>"If you're clear in your vision and trust the people in your team with 
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