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An Information Model for Network Topologies draft- medved - i2rs -topology- im - 00.txt

An Information Model for Network Topologies draft- medved - i2rs -topology- im - 00.txt. Jan Medved, jmedved@cisco.com Nitin Bahadur , nitinb@juniper.net Alexander Clemm, alex@cisco.com Hariharan Ananthakrishnan , hanantha@juniper.net. Purpose.

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An Information Model for Network Topologies draft- medved - i2rs -topology- im - 00.txt

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  1. An Information Model for Network Topologiesdraft-medved-i2rs-topology-im-00.txt Jan Medved, jmedved@cisco.com Nitin Bahadur, nitinb@juniper.net Alexander Clemm, alex@cisco.com Hariharan Ananthakrishnan, hanantha@juniper.net

  2. Purpose • Information model for network topologies • Generic topology model, extensions for specific topologies • L3 Unicast IGP, OSPF, IS-IS as part of this draft • Can be extended for other topologies • Specified using RBNF • Applications • Data nodes capture and reconcile their understanding of network topology, propagate topology info • Network controllers represent controller network topology • Ask: Adopt as WG item

  3. Data model structure Generic topology model Traffic engineering data definitions, used in multiple topologies network-topology ted l3-unicast-igp-topology ospf-topology isis-topology Other topologies (future) Model allows for multiple levels of refinement Additional topologies can be added at any refinement level

  4. Data model structure (contd.) Topology Node Link TP • Links connect nodes, are terminated by termination points • Topologies can refer to underlay topologies • Links can refer to underlay links • Nodes can refer to underlay nodes • Unidirectional, point-to-point links represent non-ptp through hierarchies of nodes links

  5. Data model structure (contd.) Topology Node Link L3 Unicast IGP Topology TP prefix L3IGP node L3IGP link • Derive Layer 3 Unicast IGP topology object classes • Integrity rules ensure links, nodes, topology of matching type

  6. Data model structure (contd.) Topology Node Link L3 Unicast IGP Topology OSPF topo ISIS topo TP prefix L3IGP node L3IGP link • Pattern recurses ISIS link ISIS node OSPF node OSPF link

  7. Questions?

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