Someone on IRC shared excellent slides about getting IPTV work as expected. They might be worth to take a look at:
http://www.slideshare.net/brouer/challenges-and-experiences-with-iptv-from-a-network-point-of-view On Tue, Jun 26, 2012 at 11:38 PM, John Neiberger <[email protected]> wrote: > On Tue, Jun 26, 2012 at 2:48 PM, Saku Ytti <[email protected]> wrote: >> On (2012-06-26 22:07 +0200), Gert Doering wrote: >> >>> Haaaahahaa... so the 3750 has the same issues the 2960 has - if you >>> turn on "mls qos", the tiny buffers get reduced to tiny/4 buffers, >> >> Common misconception. Just turning 'mls qos' on makes situation worse for >> microbursts, but tuning it correctly it behaves better than no 'mls qos'. >> Unfortunately good documentations are not searchable via CCO. >> >> https://supportforums.cisco.com/docs/DOC-8093#_Toc191205672 >> -- >> ++ytti > > In our case, around 99.99% of the traffic on that switch is multicast > video that is all marked the same way. In that sort of situation, QoS > isn't going to help and it adds additional latency because the > scheduler still has to check all the queues. (At least that's what the > SME from Cisco said.) Turning off mls qos re-enables FIFO and > decreases latency by getting rid of the unnecessary scheduler. > > John > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
