Hi there, A few questions:
1. What IGMP version is used? 2. What kind is the platform - 65/76 and if so - what modules are used. If this is an IGMPv3 - there is a well known issue with it. I should search a little for that but S,G channels are not properly snooped by the switch, which results in broadcast manner you described. BR, Dani On Jun 4, 2012, at 12:14 PM, Mohammad Khalil wrote: > > Hi all , thanks for all replies > Seemingly after i connected a laptop with wireshark , there seem a lot of > broadcast which reach as well unused ports > Bandwidth supposed to be 5M for each stream requested , so is it possibly CPE > ? > We have configured IGMP quierer on the Core Switch > > BR, > > Date: Sat, 2 Jun 2012 23:25:22 -0700 > From: td_mi...@yahoo.com > Subject: Re: [c-nsp] Multicast Issue > To: eng_m...@hotmail.com; m...@mcadory.info > CC: cisco-nsp@puck.nether.net > > Badly configured QoS perhaps ? > > What about limitation on how much of the link can be used for multicast ? > Can you try adding incremental streams in smaller amounts to find at what > point you have too much traffic ? > Have you graphed the usage on the link to verify that the amount of bandwidth > being used is indeed what you think it might be ? > There are about 101 different reasons it could be performing badly, we're > sort of just throwing suggestions out there. > > > regards,Tony. > > > From: Mohammad Khalil <eng_m...@hotmail.com> > To: m...@mcadory.info > Cc: cisco-nsp@puck.nether.net > Sent: Sunday, 3 June 2012 3:22 PM > Subject: Re: [c-nsp] Multicast Issue > > > Hi , the issue seems not BW issue as according to the specifications , each > TV is supposed to consume 5M > So any ideas? > > BR, > Mohammad > >> Date: Wed, 30 May 2012 23:44:31 -0500 >> Subject: Re: [c-nsp] > Multicast Issue >> From: m...@mcadory.info >> To: eng_m...@hotmail.com >> CC: cisco-nsp@puck.nether.net >> >> http://www.cardinalpeak.com/blog/?p=1054 is a good explanation of bit >> rate measurement process using WS. Use that to validate your expected >> 8Mbps stream rate. Also validate with your DSLAM operator that the >> 24Mbps you quote isn't total video and IPTV, but dedicated to video >> (or at least dedicated when video is flowing) to get your ~3 streams >> worth. >> >> Matt >> >> >> On Wed, May 30, 2012 at 1:29 AM, Mohammad Khalil <eng_m...@hotmail.com> >> wrote: >>> >>> The downstream is configured to be 24 M but the upstream is configured to >>> be 4M >>> this is the current setup , so it is for sure bandwidth issue ? >>> >>>> From: mark.ti...@seacom.mu >>>> To: eng_m...@hotmail.com >>>> Subject: Re: [c-nsp] Multicast Issue >>>> Date: Wed, 30 May 2012 08:18:57 +0200 >>>> CC: cisco-nsp@puck.nether.net >>>> >>>> On Wednesday, May 30, 2012 08:14:20 AM Mohammad Khalil >>>> wrote: >>>> >>>>> Actually its > supposed for each stream to consume 8M >>>>> should i try to increase the speed limits configured ? >>>> >>>> As this is VDSL, are you sure you're actually getting 24Mbps >>>> into the house? >>>> >>>> We tested IPTv on VDSL using new copper across 50m - it was >>>> a disaster. >>>> >>>> If you can, try increasing bandwidth and see if that helps. >>>> But it definitely sounds like when you request a 2nd stream >>>> and the picture develops block noise, you're starving the >>>> link of bandwidth. >>>> >>>> Mark. >>> >>> _______________________________________________ >>> cisco-nsp mailing list cisco-nsp@puck.nether.net >>> https://puck.nether.net/mailman/listinfo/cisco-nsp >>> archive at http://puck.nether.net/pipermail/cisco-nsp/ > > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > > > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
