1. 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

2. 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)

3. 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 …

4. 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

5. 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

6. 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

7. 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() …… …

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