Re: [CCAMP] UNI/NNI (was: Objective function draft)
Daniele Ceccarelli <daniele.ceccarelli@ericsson.com> Wed, 19 September 2012 07:12 UTC
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From: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>
To: Julien Meuric <julien.meuric@orange.com>
Date: Wed, 19 Sep 2012 09:12:18 +0200
Thread-Topic: [CCAMP] UNI/NNI (was: Objective function draft)
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Subject: Re: [CCAMP] UNI/NNI (was: Objective function draft)
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Ciao Julien, The key word in your reply is "tune". Ok, maybe having different protocols on different interface could be a too coarse distinction among interfaces, but at least i would expect different features for the same protocols on the different interfaces. DO you agree with me? Cheers, Daniele >-----Original Message----- >From: Julien Meuric [mailto:julien.meuric@orange.com] >Sent: martedì 18 settembre 2012 17.53 >To: Daniele Ceccarelli >Cc: Gert Grammel; George Swallow (swallow); ccamp@ietf.org >Subject: Re: [CCAMP] UNI/NNI (was: Objective function draft) > >Ciao Daniele. > >Your intend to propose definitions was nice. I also believe >that the ITU-T has identified some particular reference points >which already have a functional definition (in G.8080?). > >I think it is worth defining protocols that I can >enable/disable/tune between my network elements. I am not >shocked if different reference points have protocols in >common: I suspect this is the goal of common control... > >Regards, > >Julien > > >Le 18/09/2012 14:12, Daniele Ceccarelli a écrit : >> Hi Julien, >> >> Your argument is flawless, but if the only difference >between UNI and NNI is the relationship between the two >domains is it worth defining two different types of interface? >> >> My attempt (a bit clumpy) was to associate to each type of >interface a given set of properties and functionalities. This >also solves the problem of using unappropriate or not well >defined language. >> E.g. >> - UNI: functionalies supported: A, B, C, -- Interface Properties: X, >> Y, Z >> - E-NNI: functionalities supported: A, D, E -- Interface Properties: >> X, W >> >> So that when you say UNI you automatically indentify certain >> properties and functionalities and when you say E-NNI different ones >> (not necessarily fully disjoint...A and X, for example, are >in common) >> >> Cheers, >> Daniele >> >>> -----Original Message----- >>> From: Julien Meuric [mailto:julien.meuric@orange.com] >>> >>> Hi Daniele. >>> >>> That is a good idea to bring back this issue we did not >have time to >>> discuss in details in Vancouver. >>> >>> As far as I used to understand: >>> - UNI stands for User-to-Network, which refers to client-server >>> relationship; >>> - NNI stands for Network-to-Network, which refers to inter-domain >>> relationship within a common technology. >>> >>> I believe the protocols we use on those interfaces is orthogonal to >>> their type. E.g. one can do signaling only over an E-NNI; >building an >>> IGP-TE adjacency on the tributary links >>> (UNI) of my WDM network does not transmute my UNI into an NNI. >>> Boundaries are not defined with respect to control protocols, in >>> CCAMP we put protocols between network nodes, including boundaries, >>> we do not change boundary names... >>> That is also why I prefer to use accurate phrases such as >"signaling >>> protocol/RSVP-TE" and "IGP", rather than "UNI" or "NNI" acronyms, >>> which are sometimes too loose for a protocol specification context >>> like CCAMP. >>> >>> Cheers, >>> >>> Julien >>> >>> >>> On 09/18/2012 09:19, Daniele Ceccarelli wrote: >>>> Fully agree on the second part of your statement. At the >>> time of RFC4208 the UNI allowed the exchange of signaling >and routing >>> messages. Now that we're defining also the E-NNI i would prefer to >>> have: >>>> - UNI: signaling only >>>> - E-NNI: signaling AND routing (i would prefer to call it >>> reachability >>>> rather than routing, because it is not a topology info) >> > > > >
- Re: [CCAMP] Objective function draft George Swallow (swallow)
- [CCAMP] Objective function draft George Swallow (swallow)
- Re: [CCAMP] Objective function draft Adrian Farrel
- Re: [CCAMP] Objective function draft George Swallow (swallow)
- Re: [CCAMP] Objective function draft Daniele Ceccarelli
- Re: [CCAMP] Objective function draft Julien Meuric
- Re: [CCAMP] Objective function draft George Swallow (swallow)
- Re: [CCAMP] Objective function draft Dieter Beller
- Re: [CCAMP] Objective function draft Gert Grammel
- Re: [CCAMP] Objective function draft Dieter Beller
- Re: [CCAMP] Objective function draft Julien Meuric
- Re: [CCAMP] Objective function draft Daniele Ceccarelli
- Re: [CCAMP] Objective function draft Julien Meuric
- Re: [CCAMP] Objective function draft JP Vasseur (jvasseur)
- [CCAMP] R: Objective function draft BELOTTI, SERGIO (SERGIO)
- Re: [CCAMP] Objective function draft George Swallow (swallow)
- Re: [CCAMP] Objective function draft Vishnu Pavan Beeram
- Re: [CCAMP] Objective function draft Ong, Lyndon
- Re: [CCAMP] Objective function draft Igor Bryskin
- Re: [CCAMP] Objective function draft John E Drake
- Re: [CCAMP] UNI/NNI (was: Objective function draf… Julien Meuric
- Re: [CCAMP] UNI/NNI (was: Objective function draf… Daniele Ceccarelli
- Re: [CCAMP] Objective function draft Gert Grammel
- Re: [CCAMP] Objective function draft John E Drake
- Re: [CCAMP] UNI/NNI Julien Meuric
- Re: [CCAMP] Objective function draft Lou Berger
- Re: [CCAMP] Objective function draft Julien Meuric
- Re: [CCAMP] Objective function draft John E Drake
- Re: [CCAMP] Objective function draft Julien Meuric
- Re: [CCAMP] Objective function draft Igor Bryskin
- Re: [CCAMP] Objective function draft Gert Grammel
- Re: [CCAMP] Objective function draft Lou Berger
- Re: [CCAMP] Objective function draft Igor Bryskin
- Re: [CCAMP] Objective function draft Lou Berger
- Re: [CCAMP] Objective function draft Dieter Beller
- Re: [CCAMP] Objective function draft John E Drake
- Re: [CCAMP] Objective function draft Igor Bryskin