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I2RS Related/Relevant Yang Models Currently in Use

I2RS Related/Relevant Yang Models Currently in Use. March 2014 Robert Varga, Anton Tkacik, Jan Medved. Agenda. Architecture Why YANG What Models Inventory model PCEP protocol model. Architecture. Applications. Controller. NETCONF. RESTCONF. Service Functions. Base Network Functions.

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I2RS Related/Relevant Yang Models Currently in Use

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  1. I2RS Related/Relevant Yang Models Currently in Use March 2014 Robert Varga, Anton Tkacik, Jan Medved

  2. Agenda • Architecture • Why YANG • What Models • Inventory model • PCEP protocol model

  3. Architecture Applications Controller NETCONF RESTCONF Service Functions Base Network Functions Topology Exporter Inventory Manager ... Config Subsystem Statistics Manager Forwarding Rules Mgr ... PCEP Topology Exporter Inventory Manager Topology Exporter Inventory Manager Model-Driven SAL (MD-SAL) OpenFlow BGP-LS PCEP Netconf Client OVSDB LISP Network Devices

  4. Why YANG • Network device management: • SNMP • TL1 • CLI, proprietary protocols • NETCONF • Extensible DDL • XML Information Set • Augments, Extensions • Data-dependent structure • “when” statement • Early validation • Ranges, “must” statement • Backwards compatible (with SMIv2) • Standardized models being worked on

  5. What Models • ~110 models defined in OpenDaylight • https://wiki.opendaylight.org/view/OpenDaylight_Controller:MD-SAL:Model_Reference • 3 models from RFCs • RFC6021 • RFC6022 • 8 models from current drafts • draft-clemm-i2rs-yang-network-topo • draft-ietf-netmod-iana-afn-safi • draft-ietf-netmod-iana-if-type • ~10 models dealing with IETF protocols (BGP, PCEP) • ~27 models dealing with OpenFlow (1.0, 1.3) • ~35 internal wiring models • ~15 conceptual prototypes

  6. Inventory model • Represents manageable endpoints connected to controller • Simple base model, only skeleton concepts • Node – manageable endpoint, logical node • Node Connector – connection point present on logical node (interface, port, etc.) • Extended by technology-specific models • Flow-capable Node for OpenFlow 1.3 • Capabilities • Flow tables • NETCONF Node • Capabilities • Pass-through access to the underlying device

  7. PCEP protocol model • Message-level model of PCEP • Based in part on draft-cmfg-pce-pcep-grammar • RFC5440, RFC5441, RFC5455, RFC5521, RFC5557 • draft-ietf-pce-stateful-pce augmentation-{02,07} • draft-{crabbe,ietf}-pce-pce-initiated-lsp-00 augmentation • Message is a Notification • Augmentation of topology model with list of reported LSPs • RPC model for invoking PCInitiate/PCUpd requests • Tool-generated DTOs, extensible parser • https://wiki.opendaylight.org/view/BGP_LS_PCEP:Models

  8. Thank you

  9. Resources • More information and to join: • wiki.opendaylight.org • Keep informed and join the conversation • IRC: #opendaylight on Freenode • Open mailing lists: lists.opendaylight.org • @openDaylightSDN • #OpenDaylight 9

  10. Backup: BGP protocol model • Message-level model of BGP • RFC4271, RFC4724, RFC4760, RFC1997, RFC4360, RFC6973 • draft-ietf-idr-ls-distribution-04 • Message is a Notification • Model of local RIB, no route dissemination at this time • Tool-generated DTOs, extensible parser • Translation into draft-clemm-i2rs-yang-network-topo • https://wiki.opendaylight.org/view/BGP_LS_PCEP:Models

  11. Backup: BGP processing Application (Topology Consumer) Controller BGP-LS Topology Exporter RESTCONF MD-SAL Notification MD-SAL Set MD-SAL Get MD-SAL MD-SAL Set BGP-LS BGP PDU /operational /operational BGP-RIB Topology

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