[Teas] IETF TE Topology YANG Model Design Meeting Notes - 2016-11-09
Xufeng Liu <xliu@kuatrotech.com> Thu, 10 November 2016 19:18 UTC
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From: Xufeng Liu <xliu@kuatrotech.com>
To: Vishnu Pavan Beeram <vbeeram@juniper.net>, Igor Bryskin <Igor.Bryskin@huawei.com>, Oscar Gonzalez De Dios <oscar.gonzalezdedios@telefonica.com>, Tarek Saad <tsaad@cisco.com>, Himanshu Shah <hshah@ciena.com>, Lou Berger <lberger@labn.net>, "BRUNGARD, DEBORAH A (ATTLABS)" <db3546@att.com>, Susan Hares <shares@ndzh.com>, "Zafar Ali (zali)" <zali@cisco.com>, "Khaddam, Mazen (CCI-Atlanta)" <Mazen.Khaddam@cox.com>, Tony Le <tonyle@juniper.net>, "BELOTTI, SERGIO (SERGIO)" <sergio.belotti@alcatel-lucent.com>, "Beller, Dieter (Dieter)" <dieter.beller@alcatel-lucent.com>, Rajan Rao <rrao@infinera.com>, "Zhangxian (Xian)" <zhang.xian@huawei.com>, "xufeng.liu.ietf@gmail.com" <xufeng.liu.ietf@gmail.com>, "Belotti, Sergio (Nokia - IT)" <sergio.belotti@nokia.com>, Anurag Sharma <AnSharma@infinera.com>
Thread-Topic: IETF TE Topology YANG Model Design Meeting Notes - 2016-11-09
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Date: Thu, 10 Nov 2016 19:18:31 +0000
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Subject: [Teas] IETF TE Topology YANG Model Design Meeting Notes - 2016-11-09
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Attendees:
Igor, Xufeng, Dieter, Sergio, Pavan
- Discussed MDLG
Configuring abstract TE link disjointness requirements
(MDLGs). When configuring an abstract TE topology, how a client can
articulate that given n TE links should be mutually SRLG disjoint,
with their respective underlay TE paths unknown and to be dynamically
or semi-dynamically computed? The easiest way to do so via Mutually
Disjoint Link Groups (MDLGs) - a group of TE links sharing at least
one MDLG should be placed diversely from each other.
- Proposed modeling changes:
augment /nw:networks/nw:network/nt:link:
+--rw te!
+--rw config
| +--rw te-link-attributes
| +--rw access-type? te-types:te-link-access-type
| +--rw external-domain
| | +--rw remote-te-node-id? te-types:te-node-id
| | +--rw remote-te-link-tp-id? te-types:te-tp-id
| | +--rw plug-id? uint32
| +--rw is-abstract? empty
| +--rw name? string
| +--rw underlay! {te-topology-hierarchy}?
| +--rw admin-status? te-types:te-admin-status
| +--rw link-index? uint64
| +--rw administrative-group? te-types:admin-groups
| +--rw interface-switching-capability* [switching-capability]
| +--rw link-protection-type? enumeration
| +--rw max-link-bandwidth? te-bandwidth
| +--rw max-resv-link-bandwidth? te-bandwidth
| +--rw unreserved-bandwidth* [priority]
| | +--rw priority uint8
| | +--rw bandwidth? te-bandwidth
| +--rw te-default-metric? uint32
| +--rw te-delay-metric? uint32
| +--rw te-srlgs
| +--rw value* te-types:srlg
+ | +--rw te-mdlgs {mdlg}?
+ | +--rw id* leafref
augment /nw:networks/nw:network:
+--rw provider-id? te-types:te-global-id
+--rw client-id? te-types:te-global-id
+--rw te-topology-id? te-types:te-topology-id
+--rw te!
+--rw config
| +--rw preference? uint8
| +--rw optimization-criterion? identityref
+ | +--rw mdlg* [id] {mdlg}?
+ | +--rw id uint32
+ | +--rw disjointness? enumeration {none, node, link, srlg}
Note: Please drop me an email if you need an invite for joining the weekly call.
Thanks,
- Xufeng