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Interface to packet switching Element (IPSE) draft-rfernando-ipse-00.txt Rex Fernando

Interface to packet switching Element (IPSE) draft-rfernando-ipse-00.txt Rex Fernando Sami Boutros Dhananjaya Rao IETF 90, July 2014 Toronto, Canada. Interface to packet switching element (IPSE) what it is?.

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Interface to packet switching Element (IPSE) draft-rfernando-ipse-00.txt Rex Fernando

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  1. Interface to packet switching Element (IPSE) • draft-rfernando-ipse-00.txtRex Fernando • Sami Boutros • DhananjayaRaoIETF 90, July 2014Toronto, Canada

  2. Interface to packet switching element (IPSE) what it is? • Separated control plane can program packet switching data plane elements connected to an underlay network with tables needed to perform a packet switching related function. • Separated data plane can be a thin forwarding layer in size providingpacket switchingfunctions for a subset of tenants. • Separated control plane can grow and shrink in size based on control functions and features needed.

  3. Interface to packet switching element (IPSE) what it is? • Distribute to packet switching data plane elements the subset of tables/forwarding entries it needs. • Protocol agnostic can be carried using NETCONF, Restconf, ProtoBuf,… • Hardware agnostic, can be used to program data plane running on a server or a Hardware switch/router. • Use YANG as the modeling language to define data models for forwarding tables to program.

  4. IPSE Interface to packet switching Element • YANG Data model driven API to program a routing/switching system’s forwarding data plane. • Initially define the following tables:- • interface-table • context-selector-table • ip-unicast-table • l2-table • label-table • arp-table • arp-proxy-table • l2tp-table • pse-oam

  5. Interface to packet switching element (IPSE) Motivation/takeaway !!! • A clean CP-DP separation. • Set of forwarding objects in most routers and switches for different forwarding engines of different vendors are a handful of objects that can model the forwarding plane quite easily. • A software agent receiving these updates, can program the forwarding plane to both software and hardware forwarders • Used Yang as IETF standard and wide device support • “Network” friendly modeling language to model those forwarding objects – and hence went for YANG. • Yang provides transport independence. • Working on a binary protocol to interface, in addition to restconf and netconf • I2rs might not be the right forum but wanted to present to see if others are interested in pursuing this work

  6. Next steps • Comments are appreciated.

  7. Thank you

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