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Re: Multicast implementations on Wireless


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  • From: wiedel <>
  • To:
  • Cc: Bob Gerdes <>, wg-multicast <>
  • Subject: Re: Multicast implementations on Wireless
  • Date: Fri, 11 Dec 2009 08:57:24 -0800
  • Authentication-results: msg-ironport2.usc.edu; dkim=neutral (message not signed) header.i=none

Folks,
I don't want to be a commercial here, but you might check out
Ruckus Wireless if you are doing IPTV. They grew up in that space and
have just patented some multicast delivery systems for IPTV. Apparently
in use at several hotels with success for HDTV as well as standard def.
www.ruckuswireless.com would be their home page.
James



Greg Shepherd wrote:
This seems like an ideal deployment scenario for AMT.

Greg

On Thu, Dec 10, 2009 at 1:15 PM, Bob Gerdes
<>
wrote:
Greetings,
In previous exchanges, there have been discussions regarding
implementations of multicast on various wireless networks (one noted below).
In another, folks were going to check with specific vendors.

We are looking for any cases where multicast (especially multiple IPTV
channels) has been implemented on a wireless network for mobile users.

In checking with different vendors, we had a conversation with a
distributor who is suggesting that wireless vendors are implementing a
streaming service to redistribute a multicast stream. In another, apparently
some folks have had some success with Aruba, but haven't gotten followup
info yet. So, hopefully you might have some better experiences or updates
since last year.
Thanks for your considersation,
Bob

Backgroud: our group is working with our TV group on an IPTV pilot service
using VideoFurnace/Haivision servers. We have been working with our
networking group to get multicast working across campus. Our Wireless group
uses Meru access points and BlueSocket for authentication and policy, but
they have not been able to make progress with multicast on Wireless. One
issue is that we would need to move the infrastructure to 802.11N or better.

Bob Gerdes
Office of Instructional and Research Technologies (OIRT)
Rutgers, The State University
Phone: (732) 445-1438 Fax: 445-5539

On Wed, 15 Oct 2008, Alan Crosswell wrote:

Subject : Re: notes from BoF

Multicast WG BoF Wed Oct 15, 2008

Items discussed follow:

* High bandwidth multicast over WiFi
- no progress on getting any significant information from vendors other
than the realization that there are a number of problems with
rate limiting, flooding, sending all multicast down tunnels to APs, etc.
- See Bruce's mail regarding Cisco APs and roaming.




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