[Sumover-dev] scalability

[Piers O'Hanlon]

Hi Marc,

The IETF used to multicast the WG sessions using RAT (or maybe using
VAT?) and VIC at one point - but given the lack of global multicast
deployment they moved towards a a unicast solution. They did use a
number of different system on the way - included end system multicast
and I think they now just unicast stream the audio (one way) from a
handful of sessions. There are Jabber rooms for most of the meetings
which can be of benefit.

As brian mentions it is tricky to have alot of people (which is the
case in some WG meetings - e.g SIP) - the interaction model just
doesn't make it good enough compared with direct contact. Basically if
people are interested enough in the subject to want to provide input
then they attend the meeting.

Saying that I think AccessGrid (and other forms of networked
communication) do have their place. AG is great for connecting rooms
for lectures and [not-too-large] meetings.

Piers


> while i made some advertising for "accessgrid" on the IEFT list, ;)
>
> brian carpenter ( IEFT WG co chair ) made an interesting statement
> whitch i like to forward here.
>
>>  The problem with Access Grid or the
>> commercial alternatives is  the extreme
>> difficulty of running an effective remote meeting with
>> more than a very small number (4 or 5) of participating
>> sites. So for a design team meeting it's fine, but for a
>> WG meeting I think you'd be quite disappointed.
>
> When i log on into an venue i see between 5 and 10 partizipants
> so i really can´t tell about the scalability , but i think it would be great
> to
> have a mass or  multi  conferencing tool for IEFT meetings, for all the
> participants
> that could not attent to the meeting , but would have the change
> to follow the discussions and slides on a venue.and it would safe CO2
> emmisions aswell ;)
>
> The programm i am using could scale up to 25 connected users
> but i am not sure , what happent when more people connect.
>
> Could someone tell me how much possible users could join a accessgrid/
> vic/rat  conference ?
>
>
> thanks for your time
>
> regards
>
> Marc
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