On 01/11/2011 17:56, Jeffrey Sessler wrote:
How was your multicast configured? Past the controller-multicast, the
important piece is the AP Multicast mode set on the general page. If it's
set to Unicast, pain and suffering can occur. Also, have you enabled any
of the Media Stream features?
Are you still working with Cisco TAC, or have you engaged the wireless
business unit?
Jeff

 >>> On Thursday, October 27, 2011 at 6:31 PM, in message
<700d77bb392ae543b5b4455c8db89e3a09cc7...@mbox1.ad.bradley.edu>, "Ghere,
Shayne" <sgh...@bumail.bradley.edu> wrote:

One thing we did find is that by turning Multicast off
(Controller-Multicast) it dropped the UDP traffic from 40-60Mb/sec down to
1-2Mb/sec on all Trunk Ports across campus. This was something even Cisco
was surprised by, so maybe it’s something with the 7.0.116 code. ??? It
was on by default after the upgrade because I don’t remember ever enabling
it since we don’t use Multicast over wireless, just on the wired network.

All our AP’s and controllers are on the same Vlan, so we’ve ruled out the
router/firewall, and none of the Gig trunk ports are even near capacity.

We are starting to make progress, but the biggest thing we’re seeing now
is the massive interference which we’re working on.


+1 on multicast enabled in "unicast mode" breaks everything in special ways (including our WISM2s *generating* ~200Mbps traffic) with 7.0.116.0 and Cisco haven't yet been able to explain why.

-James

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