Re: [OPSAWG] [OPS-AREA] Present day reality of COPS-PR

[Sumanth Channabasappa <sumanth at cablelabs.com>]

A few clarifications regarding the usage of COPS within CableLabs
specifications (thanks to Karthik Sundaresan, cc-ed).

CableLabs does not reference COPS within the DOCSIS specification suite.
Instead it utilizes COPS within two different PacketCable specification
efforts: 
- PacketCable 1.5 Dynamic Quality of Service (DQoS); and,
- PacketCable Multimedia.

Within these specifications COPS is used in conjunction with DOCSIS to
provide Quality of Service to PacketCable components. Both the
specifications mentioned above specify the use of COPS messages, and
normatively reference COPS and COPS-PR. The COPS objects used are according
to COPS. In addition the PCMM specification also aligns with COPS-PR.
 
To clarify the usage:
= PacketCable 1.5 DQoS uses a hybrid push-pull model.
= PacketCable Multimedia uses the Push model.

References:
http://www.cablelabs.com/specifications/PKT-SP-DQOS1.5-I04-090624.pdf
http://www.cablelabs.com/specifications/PKT-SP-MM-I04-080522.pdf


- S


On 10/1/09 12:06 PM, "Paul Duffy" <paduffy at cisco.com> wrote:

> I believe its pull
> 
> See   
> http://www.cablelabs.com/specifications/PKT-SP-DQOS-C01-071129.pdf,
> section 5
> 
> Cheers
> 
> 
> Kwok Ho Chan wrote:
>> Does CableLabs usage of COPS include the usage of the Push Model,
>> the Pull Model, Both?
>> Thanks!
>> -- Kwok --
>> 
>> At 01:03 PM 10/1/2009, Paul Duffy wrote:
>> 
>> 
>>>> CableLab have their way of using COPS in DOCSIS, which I believe
>>>> uses both push and pull models.  I don't believe they call it COPS-PR,
>>>> but DOCSIS uses some of the COPS-PR features.
>>> CableLabs does not use COPS-PR, but they do use COPS.
>>> 
>> 
>> 
> 
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