[c-nsp] Multicast Issue

[Diogo Montagner]

You may be running out of bandwidth (or other resources) in the point
where your traffic is being replicated.

Diogo

On 6/3/12, Tony <td_miles at yahoo.com> wrote:
> 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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>>> > https://puck.nether.net/mailman/listinfo/cisco-nsp
>>> > archive at http://puck.nether.net/pipermail/cisco-nsp/
>>
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>>
>>
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