Re: [Isis-wg] comments on draft-litkowski-isis-yang-isis-cfg-01

"Osborne, Eric" <eric.osborne@level3.com> Wed, 30 July 2014 13:52 UTC

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From: "Osborne, Eric" <eric.osborne@level3.com>
To: "stephane.litkowski@orange.com" <stephane.litkowski@orange.com>, "Chris Bowers" <cbowers@juniper.net>, Alia Atlas <akatlas@gmail.com>, "Derek Man-Kit Yeung (myeung) (myeung@cisco.com)" <myeung@cisco.com>, "Jeffrey (Zhaohui) Zhang (zzhang@juniper.net)" <zzhang@juniper.net>
Thread-Topic: [Isis-wg] comments on draft-litkowski-isis-yang-isis-cfg-01
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Date: Wed, 30 Jul 2014 13:52:43 +0000
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Cc: Hannes Gredler <hannes@juniper.net>, "Wunan \(Eric\)" <eric.wu@huawei.com>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Subject: Re: [Isis-wg] comments on draft-litkowski-isis-yang-isis-cfg-01
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[trimmed to get under size limit]

I just skimmed rfc6087 and it didn’t talk about this sort of thing.  I think it might be nice for netmod to do (I’ll start a separate thread over there).  It’s not because I want to be pedantic about TE models.  If YANG takes off and we don’t have some guidelines that strongly recommend reuse, we’ll end up with a very wide, flat model space with minute differences between models.




eric

From: stephane.litkowski@orange.com [mailto:stephane.litkowski@orange.com]
Sent: Wednesday, July 30, 2014 9:45 AM
To: Osborne, Eric; Chris Bowers; Alia Atlas; Derek Man-Kit Yeung (myeung) (myeung@cisco.com); Jeffrey (Zhaohui) Zhang (zzhang@juniper.net)
Cc: Hannes Gredler; Wunan (Eric); isis-wg@ietf.org; Ladislav Lhotka (lhotka@nic.cz)
Subject: RE: [Isis-wg] comments on draft-litkowski-isis-yang-isis-cfg-01

“one of the goals of any model is to reuse parts from other models”


Ø  I’m not aware of any sort of design model for the routing part … expect that it must be aligned with the core routing model. Maybe some Yang doctor’s have another view …

Yang model definition is just starting … it’s time to define such constraint if it does not exist