Sdn

What I do

• Design and implement SDN architectures
• Program network behavior through controllers
• Separate control plane from data plane
• Implement network virtualization
• Create dynamic network policies
• Manage network through software APIs
• Deploy network automation with SDN

When to use me

Use me when:

• Building programmable network infrastructure
• Implementing network virtualization
• Managing data center networks
• Creating dynamic network policies
• Requiring network-wide visibility
• Automating network operations at scale

Key Concepts

SDN Architecture

┌─────────────────────────────────────────────────────┐
│                  Application Layer                   │
│              (Network Apps & Orchestration)          │
└─────────────────────┬───────────────────────────────┘
                      │ Northbound API
┌─────────────────────▼───────────────────────────────┐
│               SDN Controller                          │
│           (OpenDaylight, ONOS, Ryu)                  │
│         - Network state                              │
│         - Topology discovery                         │
│         - Path computation                           │
└─────────────────────┬───────────────────────────────┘
                      │ Southbound API
┌─────────────────────▼───────────────────────────────┐
│                 Data Plane                            │
│            (Switches, Routers)                        │
│         - Forwarding                                 │
│         - Flow tables                                 │
└─────────────────────────────────────────────────────┘