Re: [CCAMP] draft-ietf-ccamp-te-metric-recording-02

John E Drake <jdrake@juniper.net> Fri, 09 August 2013 22:00 UTC

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From: John E Drake <jdrake@juniper.net>
To: "Zafar Ali (zali)" <zali@cisco.com>, Igor Bryskin <IBryskin@advaoptical.com>, "Matt Hartley (mhartley)" <mhartley@cisco.com>, "CCAMP (ccamp@ietf.org)" <ccamp@ietf.org>
Thread-Topic: [CCAMP] draft-ietf-ccamp-te-metric-recording-02
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Date: Fri, 9 Aug 2013 21:55:10 +0000
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Subject: Re: [CCAMP] draft-ietf-ccamp-te-metric-recording-02
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Zafar,

'Overall solution' to what problem?  Don't we normally start with requirements drafts?

Yours Irrespectively,

John

> -----Original Message-----
> From: Zafar Ali (zali) [mailto:zali@cisco.com]
> Sent: Friday, August 09, 2013 2:46 PM
> To: Igor Bryskin; Matt Hartley (mhartley); John E Drake; CCAMP
> (ccamp@ietf.org)
> Subject: Re: [CCAMP] draft-ietf-ccamp-te-metric-recording-02
> 
> 
> -----Original Message-----
> From: "IBryskin@advaoptical.com" <IBryskin@advaoptical.com>
> Date: Friday, August 9, 2013 5:27 PM
> To: "Matt Hartley (mhartley)" <mhartley@cisco.com>om>, "jdrake@juniper.net"
> <jdrake@juniper.net>et>, "ccamp@ietf.org" <ccamp@ietf.org>
> Subject: Re: [CCAMP] draft-ietf-ccamp-te-metric-recording-02
> 
> >Matt,
> >I apologize for calling you by wrong name.
> >
> >Igor
> >
> >-----Original Message-----
> >From: ccamp-bounces@ietf.org [mailto:ccamp-bounces@ietf.org] On
> Behalf
> >Of Igor Bryskin
> >Sent: Friday, August 09, 2013 5:11 PM
> >To: Matt Hartley (mhartley); John E Drake; CCAMP (ccamp@ietf.org)
> >Subject: Re: [CCAMP] draft-ietf-ccamp-te-metric-recording-02
> >
> >Martin,
> >We (John and myself) are of a school of thought that believes a client
> >should know what to expect from an LSP it requests from a service
> >provider *before* the setup request is issued (e.g. through a standard
> >virtual link advertisement). Among other things this allows for the
> >client all kinds of pre-planning.  What you and Zafar suggest is to
> >request LSP, first, and analyze its properties later,
> 
> Igore-
> 
> These are building blocks and you cannot conclude on a full solution by cherry
> picking part of the overall solution. In another draft that we discussed via the
> email draft-ali-ccamp-rc-objective-function-metric-bound, we talk about
> client requesting metric bound (e.g., latency bound). So yes, connection
> requirements are driven by the clients.
> 
> Thanks
> 
> Regards Š Zafar
> 
> 
>