[svctest] [Fwd: Questions to Vidyo]

[Eric Le Guiniec]

HI Andras,

Travelling most of last days, currently in the US,  we will answer your questions today.
 We will also get back to you on Monday with a schedule for the test, I'm coordinating with Sverre to have the latest release candidate in place before we test. Normally everyone should have a test account already, if not please let me know and we will generate new login/passwords.
Thanks
Eric

-----Message d'origine-----
De : svctest-bounces at listserv.niif.hu [mailto:svctest-bounces at listserv.niif.hu] De la part de Andras Kovacs
Envoyé : mercredi 11 juin 2008 13:35
À : svctest at listserv.niif.hu
Objet : [svctest] [Fwd: Questions to Vidyo]

Hi All,


Sorry about bugging you... Have you received those questions? Are they 
relevant? Anybody to add something? (thanks).

The other issue is the way we test. How could we access the Surfnet 
equipment? Do you want me to contact Michiel Schok and get him onto this 
list?

Thanks.
Andras


-------- Original Message --------
Subject: [svctest] Questions to Vidyo
Date: Wed, 04 Jun 2008 12:29:56 +0200
From: Andras Kovacs <akov at niif.hu>
Reply-To: akov at niif.hu
Organization: NIIF/HUNGARNET
To: svctest at listserv.niif.hu

Hi All,


First of all, I would like to thank to Vidyo for their commitment in
such testings. Hopefully, we will be able to do an extensive testing in
the forthcoming weeks and that will be a valuable input for you as well.

These are the first technical questions to Vidyo (discussed in Bruges
with some GN2 people).

1. Firewall/NAT traversal:
   o What is the current technology you promote?
   o We heard about Vidyo proxy, what is it all about?

Notes (with researcher community hat on):
   o We have been experiencing that H.323/SIP does not fly due to
firewall/NAT traversal problems (often requires days of fw/NAT debugging)
   o Adobe and other webconferencing solutions use HTTP tunneling
   o We think that an HTTP tunneling option would solve any of the problems
   o We also think that Vidyo proxy solution (as far as we understand it)
is not feasible, since a European-level service would require deployment
thousands of gateways, which is obviously impossible.

2. Audio stream delivery:
   o We are wondering how audio delivery is happening in your solution.
   o Since Vidyo router is switching packet, we suppose that audio mixing
is also avoided.
   o How the audio delivered without mixing? All-to-all? What happens
when 20 participants are there?

3. AAI enabling the web interface:
   o What do you think, is there a chance to AAI-enable (maybe Shibboleth
or eduGAIN) your Vidyo portal?

4. Camera support:
   o We have just received some information on this issue
   o A few notes:
     - Is there a plan to support firewire cameras (many of our users use
e.g. a Sony camera on a tripod to get better quality and autofocus)
     - I understand you being USB-biased due to better performance by the
OS/drivers. It is still a question whether a huge userbase (generally
thinking) could tolerate this or not? (ie. forcing all users to get rid
of good old PCI hardware).

5. Dialling out/inthrough gateway:
   o Currently, we use e.164 for both H.323 and SIP
   o How the dialling in (to Vidyo cloud) is done at the gateway? (How a
user could indicate Vidyo meeting room?)
   o How the dialling out is done? (How the number translation is done to
E.164 at the gateway?)

6. Management of Vidyo solution:
   o How is the management done of Vidyo components (portal, router,
gateway, etc.)?
   o How to configure them?
   o Is there SNMP support for standard based regular retrieval of system
parameters?
   o How conferences/users could be monitored?

7. Gateway:
   o It would be very important to test the gateway solution due to
interoperability issues (protocol and codec compatibility).
   o Can you please provide general technical information about the gw?
   o What is the capacity of the gateway (number of calls in function of
transcoding done)
   o How a layout is assembled at the gateway (transmitting a VC from
Vidyo cloud to H.323/SIP world)? Are all the Vidyo participants decoded,
   assembled onto a screen, and encoded? Is there voice activated modes
where louder speakers are on the screens?


Sorry for the question-tsunami. ;)


Thanks in advance.

Cheers,
Andras


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-- 
Andras Kovacs
Network Engineer
-------------------------------------------------------------
NIIF/HUNGARNET                           e-mail: akov at niif.hu
Victor Hugo str. 18-22.                  tel:  +36 1 450 3082
H-1132 Budapest, Hungary                 fax:  +36 1 350 6750

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