[c-nsp] Multicast Issue

[Mohammad Khalil]

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_miles at yahoo.com
Subject: Re: [c-nsp] Multicast Issue
To: eng_mssk at hotmail.com; matt at mcadory.info
CC: cisco-nsp at 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_mssk at hotmail.com>
 To: matt at mcadory.info 
Cc: cisco-nsp at 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: matt at mcadory.info
> To: eng_mssk at hotmail.com
> CC: cisco-nsp at 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_mssk at 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.tinka at seacom.mu
> >> To: eng_mssk at hotmail.com
> >> Subject: Re: [c-nsp] Multicast Issue
> >> Date: Wed, 30 May 2012 08:18:57 +0200
> >> CC: cisco-nsp at 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.
> >
> > _______________________________________________
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