HybNET: Network Manager for a Hybrid Network Infrastructure Hui Lu, Nipun Arora, Hui Zhang, Cristian Lumezanu, Junghwan Rhee, Guofei Jiang Put Image of wizard plus network over here

Background : SDN Centralized control plane of network switches Traditional network management configuration mechanisms are cumbersome and do not scale well to large scale systems With recent advances in cloud oriented networking infrastructure the need of a flexible OpenFlow Controller SDN Switching Traditional Switching Centralized control plane of network switches Controller decides on actions and routing Switches perform only data plane forwarding Software Defined Networking (OpenFlow)

Background : Cloud Computing Cloud Computing Infrastructure usually needs rapid re-configuration and network management Software Defined Networking is increasingly being adopted by industry leaders in managing large scale networks However …

Must upgrade to SDN incrementally Motivation Transitioning to a Software Defined Networking is difficult Existing Network infrastructure cannot be ignored, and only a phased network network transition is possible Hybrid network is a reality -- Transitioning existing legacy deployment -- Budget limitations Full SDN UPGRADE Must upgrade to SDN incrementally

Key Highlights Seamless network management of Hybrid Network with centralized Hybrid Controller Specific focus on network isolation Integrated with OpenStack Grizzly Platform Introduce the concept of “virtualization in virtualization” and “virtual links” Hybrid-controller

Architecture Overview Network Operator Create network Create sub-network Create ports … Mapping database Slice tables OpenFlow controller Hybrid Controller switch Legacy OpenFlow protocol Physical network Physical infrastructure Path Finder VLAN tables Requests API Input: Logical topology

Network Isolation … Traditional network -- VLAN: packets are tagged and can only pass through ports with the same tagged id. SDN network -- Slice: packets are authenticated by various patterns; VLAN-ID port-based solution or MAC-based solution Lookup datapath_id src_mac (mac-based) vid (port-based) Ingress_port First Packet_in OpenFlow Controller OpenFlow Switch Flow rules allow drop Slice Matching Slice_1 Fun1() Slice_2 Fun2() …… …

Thanks for Listening!!! nipun@nec-labs.com Nipun Arora NEC Laboratories America Princeton, NJ nipun@nec-labs.com