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Network Overlay Dataplane Requirements

Network Overlay Dataplane Requirements. Draft-nb-nvo3-dataplane-requirements-01. Authors. Nabil Bitar Marc Lasserre Florin Balus Thomas Morin. Purpose of the draft. Dataplane requirements for Data Center Network Virtualization over L3 tunnels: VAP Identification L2 & L3 VNI types

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Network Overlay Dataplane Requirements

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  1. Network Overlay Dataplane Requirements Draft-nb-nvo3-dataplane-requirements-01

  2. Authors Nabil Bitar Marc Lasserre Florin Balus Thomas Morin

  3. Purpose of the draft • Dataplane requirements for Data Center Network Virtualization over L3 tunnels: • VAP Identification • L2 & L3 VNI types • NVO3 header and tunnel processing • VN context identification • Explicit unique id (e.g. VNID) or locally significant identifier • Optional QoS/Cos marking • NVE tunnelling functions • IP encaps (MUST) & MPLS encaps (MAY) • LAG & ECMP support • DiffServ & ECN marking • BUM handling • External connectivity via GW • Path optimality • Path MTU handling

  4. VNI Types • L2 VNI • Emulated Ethernet multipoint service • MAC address learning via • Dataplane learning • Control/Management plane MAC address population • L3 VNI • Virtualized IP routing & forwarding

  5. Changes in -01 • Addressed comments made on the list and privately • Updated VN context identification (VNID or local reference ID) • Optional multicast support • Optional integrated bridging & routing support • Clarification of DP learning applicability vs CP/Management based provisioning

  6. Next Steps • Make entropy requirement more generic • E.g. “the encapsulation MUST result in sufficient entropy to exercise all paths through several LAG/ECMP hops”

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