SDN · Software Defined Networks by Nadeau, Thomas D. -- Read -- Imperial Library of Trantor

Index

SDN: Software Defined Networks A Note Regarding Supplemental Files Foreword by David Meyer Foreword by David Ward Preface

Assumptions What’s in This Book? Conventions Used in This Book Using Code Examples Safari® Books Online How to Contact Us Acknowledgments from Thomas Nadeau Acknowledgments from Ken Gray

1. Introduction 2. Centralized and Distributed Control and Data Planes

Introduction

Evolution versus Revolution

What Do They Do?

The Control Plane Data Plane Moving Information Between Planes Why Can Separation Be Important?

Scale matters Evolution Cost Innovation Stability Complexity and its resulting fragility

Distributed Control Planes

IP and MPLS Creating the IP Underlay Convergence Time Load Balancing High Availability Creating the MPLS Overlay Replication

Centralized Control Planes

Logical Versus Literal ATM/LANE Route Servers

Conclusions

3. OpenFlow

Introduction

Wire Protocol Replication FAWG (Forwarding Abstraction Workgroup) Config and Extensibility Architecture

Hybrid Approaches

Ships in the Night Dual Function Switches

Conclusions

4. SDN Controllers

Introduction General Concepts

VMware Nicira

Relationship to the idealized SDN framework

VMware/Nicira OpenFlow-Related

Relationship to the idealized SDN framework

Mininet NOX/POX Trema Ryu Big Switch Networks/Floodlight

Relationship to the idealized SDN framework

Layer 3 Centric

L3VPN

Relationship to the idealized SDN framework

Path Computation Element Server

RSVP-TE problem statement Bin-packing Deadlock The PCE Solution Relationship to the idealized SDN framework

Plexxi

Plexxi Affinity

Cisco OnePK

Relationship to the Idealized SDN Framework

Conclusions

5. Network Programmability

Introduction The Management Interface The Application-Network Divide

The Command-Line Interface NETCONF and NETMOD

Basic NETCONF Operations Capabilities

SNMP

The SNMP agent The SNMP manager Manager and agent relationship The MIB (management information base)

Modern Programmatic Interfaces

Publish and Subscribe Interfaces XMPP Google’s Protocol Buffers Thrift JSON

I2RS Modern Orchestration

OpenStack CloudStack Puppet Conclusions

6. Data Center Concepts and Constructs

Introduction The Multitenant Data Center The Virtualized Multitenant Data Center

Orchestration Connecting a Tenant to the Internet/VPN Virtual Machine Migration and Elasticity Data Center Interconnect (DCI) Fallacies of Data Center Distributed Computing Data Center Distributed Computing Pitfalls to Consider

DCI approaches VLANs for DCI VPLS for DCI

EVPN for DCI

Summary comparison of VPLS and EVPN for DCI

SDN Solutions for the Data Center Network

The Network Underlay

VLANs EVPN

Locator ID Split (LISP)

VxLan NVGRE

OpenFlow Network Overlays

Tunnels terminated at the vSwitch

Network Overlay Types

Layer 2 overlays Layer 3 overlays Hybrid overlay-underlay approach

Conclusions

7. Network Function Virtualization

Introduction Virtualization and Data Plane I/O

Data Plane I/O I/O Summary

Services Engineered Path Service Locations and Chaining

Metadata An Application Level Approach Scale

NFV at ETSI Non-ETSI NFV Work

Middlebox Studies Embrane/LineRate Platform Virtualization

Conclusions

8. Network Topology and Topological Information Abstraction

Introduction Network Topology Traditional Methods LLDP BGP-TE/LS

BGP-LS with PCE

ALTO

BGP-LS and PCE Interaction with ALTO

I2RS Topology

Conclusions

9. Building an SDN Framework

Introduction Build Code First; Ask Questions Later... The Juniper SDN Framework IETF SDN Framework(s)

SDN(P) ABNO

Open Daylight Controller/Framework

API High Availability and State Storage Analytics

Policy Conclusions

10. Use Cases for Bandwidth Scheduling, Manipulation, and Calendaring

Introduction Bandwidth Calendaring

Base Topology and Fundamental Concepts OpenFlow and PCE Topologies Example Configuration OpenFlow Provisioned Example Enhancing the Controller Overlay Example Using PCE Provisioning Expanding Your Reach: Barbarians at the Gate

Big Data and Application Hyper-Virtualization for Instant CSPF Expanding Topology Conclusions

11. Use Cases for Data Center Overlays, Big Data, and Network Function Virtualization

Introduction Data Center Orchestration

Creating Tenant and Virtual Machine State Forwarding State Data-Driven Learning Control-Plane Signaling Scaling and Performance Considerations

Puppet (DevOps Solution) Network Function Virtualization (NFV)

NFV in Mobility

Optimized Big Data Conclusions

12. Use Cases for Input Traffic Monitoring, Classification, and Triggered Actions

Introduction The Firewall Firewalls as a Service Network Access Control Replacement Extending the Use Case with a Virtual Firewall Feedback and Optimization Intrusion Detection/Threat Mitigation Conclusions

13. Final Thoughts and Conclusions

What Is True About SDN?

Economics SDN Is Really About Operations and Management

Multiple Definitions of SDN Are We Making Progress Yet?

Index About the Authors Colophon Copyright

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