Re: [sip-clf] One possible Information model for SIP CLF
"Elwell, John" <john.elwell@siemens-enterprise.com> Wed, 13 January 2010 09:28 UTC
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From: "Elwell, John" <john.elwell@siemens-enterprise.com>
To: Cullen Jennings <fluffy@cisco.com>, SIP-CLF Mailing List <sip-clf@ietf.org>
Date: Wed, 13 Jan 2010 10:28:07 +0100
Thread-Topic: [sip-clf] One possible Information model for SIP CLF
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Subject: Re: [sip-clf] One possible Information model for SIP CLF
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Yes, why don't we just do it? This group seems to have stalled. I don't have a strong opinion on the information model, so why not take Cullen's suggestion as a starting point and try to get consensus (having a call if necessary)? SIP-CLF is a useful work item, but not one worth spending years trying to find the optimum solution. John > -----Original Message----- > From: sip-clf-bounces@ietf.org > [mailto:sip-clf-bounces@ietf.org] On Behalf Of Cullen Jennings > Sent: 12 January 2010 22:22 > To: SIP-CLF Mailing List > Subject: [sip-clf] One possible Information model for SIP CLF > > > David raises and excellent point that we are unclear about > our information model and that makes it harder for us to get > work done quickly. I encourage people to read RFC 3444. > > I think there is a very clear and well define information > model for what we need in SIP CLF. > > For each SIP message that is logged, there is a Status-Line > or Request-Line, an ordered list of pairs of where each pair > has a header-name and a header-value, and finally there may > be zero or one message-bodies. We also have where the message > was coming from and going to from the transport layer as well > as a timestamp. These are defined in RFC 3261. Formal > language descriptions of one possible data model for them are > provided in section 25.1. If people feel the strong need to > have this information model in say UML, I suspect I could do > the UML for this in ASCII. > > This is it. > > As usual, I don't claim to have a good handle on where this > slides from being an IM to DM but it barely seems relevant > for getting the job done. Now of course we could slide the IM > differently, such as pulling out the SIP to and from tags as > elements in the information model. I don't really care how we > slice it apart but the key thing to me that doing so is > really easy and largely already defined. I think that on a > single 1 hour phone call we could probably come to consensus > on what the information model needed to be. > > I would strongly argue that what we don't need is an > extensible information model or a formal language schema for > describing and extensible data model. SIP 2.0 is not going to > be extended in a way that adds elements outside the above items. > > Keep it simple. You are trying to convince someone that > currently has an fprintf to replace the it with this so make it easy. > > > Cullen > > > > > > > > > > > _______________________________________________ > sip-clf mailing list > sip-clf@ietf.org > https://www.ietf.org/mailman/listinfo/sip-clf >
- [sip-clf] One possible Information model for SIP … Cullen Jennings
- Re: [sip-clf] One possible Information model for … Elwell, John