Re: [siprec] Stephen Farrell's Discuss on draft-ietf-siprec-metadata-20: (with DISCUSS and COMMENT)

Paul Kyzivat <pkyzivat@alum.mit.edu> Mon, 21 March 2016 17:04 UTC

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To: "Ram Mohan R (rmohanr)" <rmohanr@cisco.com>, "siprec@ietf.org" <siprec@ietf.org>
References: <20160302110853.23213.23639.idtracker@ietfa.amsl.com> <D2FD2694.5326B%rmohanr@cisco.com> <56D9989F.1010103@cs.tcd.ie> <D303791D.53A11%rmohanr@cisco.com> <D312E982.5567D%rmohanr@cisco.com> <56EEDFF2.4000604@alum.mit.edu> <D3160C24.5591E%rmohanr@cisco.com> <56F01407.5000606@alum.mit.edu> <D3161B0F.55972%rmohanr@cisco.com>
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Date: Mon, 21 Mar 2016 13:04:29 -0400
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Subject: Re: [siprec] Stephen Farrell's Discuss on draft-ietf-siprec-metadata-20: (with DISCUSS and COMMENT)
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That is better.

	Thanks,
	Paul

On 3/21/16 12:10 PM, Ram Mohan R (rmohanr) wrote:
> Paul,
>
> Please see inline
>
> -----Original Message-----
> From: Paul Kyzivat <pkyzivat@alum.mit.edu>
> Date: Monday, 21 March 2016 at 9:02 PM
> To: Cisco Employee <rmohanr@cisco.com>, "siprec@ietf.org" <siprec@ietf.org>
> Subject: Re: [siprec] Stephen Farrell's Discuss on
> draft-ietf-siprec-metadata-20: (with DISCUSS and COMMENT)
>
>> On 3/21/16 10:59 AM, Ram Mohan R (rmohanr) wrote:
>>> Paul,
>>>
>>> One comment please see inline
>>>
>>> -----Original Message-----
>>> From: siprec <siprec-bounces@ietf.org> on behalf of Paul Kyzivat
>>> <pkyzivat@alum.mit.edu>
>>> Date: Sunday, 20 March 2016 at 11:07 PM
>>> To: "siprec@ietf.org" <siprec@ietf.org>
>>> Subject: Re: [siprec] Stephen Farrell's Discuss on
>>> draft-ietf-siprec-metadata-20: (with DISCUSS and COMMENT)
>>>
>>>> Hi Ram,
>>>>
>>>> This looks good. I saw a couple of nits while reviewing the changes:
>>>>
>>>> * Section 6.1.2:
>>>>
>>>>      CSs and CS-Groups are optional to accommodate persistent recording,
>>>>      where there may sometimes be none.  ...
>>>>
>>>> That statement is correct WRT CS-Groups, but not CSs. CSs have much
>>>> more
>>>> relevance, and aren't optional for recording. So I would simply omit
>>>> "CSs and " from the above.
>>>
>>> Above statement is for persistent recording case where the RS may be
>>> setup
>>> between SRC (say endpoint like voip phone) and SRS even before any CS is
>>> setup.
>>> Once CS is setup, the persistent RS dialog will be used to record the RS
>>> rather than setting up another RS. This statement is to indicate the
>>> same.
>>
>> My point was that CSs are not optional in the same way that CSGs are.
>>
>> They are optional in the sense that you can send a <recording> element
>> that has none
>
> That¹s correct. I was trying to convey this information through the above
> statement. Perhaps it is not clear.
> How about re-wording the sentence to some thing like this:
>
> EXISTING:
> CS and CS-Groups are optional to accommodate persistent recording,
>       Where there may sometimes be none.A persistent RS is a SIP dialog
>     that is setup between SRC to SRS even before any CS is setupŠ.......
>
>
> NEW:
> Zero instances of CS and CS-Group in a recording element is allowed to
> accommodate persistent recording scenarios.
> A persistent RS is a SIP dialog that is setup between SRC to SRS even
> before any CS is setupŠ.......
>
>
> Does this look better ?
>
> Regards,
> Ram
>
>> . But ultimately it is CSs that are the primary thing being
>> recorded.
>> And of course communication sessions can exist without recordings.
>>
>> So maybe this just needs a few more words.
>>
>> But this isn't a big deal. I won't be bothered if you leave it as-is.
>>
>> 	Thanks,
>> 	Paul
>>
>
>