Openflow y SDN

Specialized Packet Forwarding Hardware
(Gp:) App
(Gp:) App
(Gp:) App

Specialized Packet Forwarding Hardware
(Gp:) App
(Gp:) App
(Gp:) App

Specialized Packet Forwarding Hardware
(Gp:) App
(Gp:) App
(Gp:) App

Specialized Packet Forwarding Hardware
(Gp:) App
(Gp:) App
(Gp:) App

Specialized Packet Forwarding Hardware
Operating
System
Operating
System
Operating
System
Operating
System
Operating
System
(Gp:) App
(Gp:) App
(Gp:) App

2

En la actualidad:Cajas cerradas y Protocolos distribuidos

Specialized Packet Forwarding Hardware
(Gp:) App
(Gp:) App
(Gp:) App

Specialized Packet Forwarding Hardware
(Gp:) App
(Gp:) App
(Gp:) App

Specialized Packet Forwarding Hardware
(Gp:) App
(Gp:) App
(Gp:) App

Specialized Packet Forwarding Hardware
(Gp:) App
(Gp:) App
(Gp:) App

Specialized Packet Forwarding Hardware
Operating
System
Operating
System
Operating
System
Operating
System
Operating
System
(Gp:) App
(Gp:) App
(Gp:) App

Network Operating System
(Gp:) App
(Gp:) App
(Gp:) App

Un Acercamiento a “Software Defined Networking”
3

App
Simple Packet Forwarding Hardware
Simple Packet Forwarding Hardware
Simple Packet Forwarding Hardware
App
App
Simple Packet Forwarding Hardware
Simple Packet Forwarding Hardware
Network Operating System
(Gp:) 1. Open interface to hardware

(Gp:) 3. Well-defined open API

(Gp:) 2. At least one good operating system
Extensible, possibly open-source

El Concepto “Software-defined Network”
4

Software Defined Networking (SDN)

Los principales objetivos de SDN
Abstraer los elementos de la Red desde las Aplicaciones.
Control y Gestión centralizadad de los dispositivos de red de diferentes fabricantes.
Tener una Red abierta que permita ser programable y crear servicios de forma sencilla.
SDN es una arquitectura que divide el plano de conmutación y permite que sea programable de una forma directa.

LAS REDES ABIERTAS ADOPTARAN MAYORES INNOVACIONES.

Arquitectura SDN

The SDN Stack
Controller
NOX
Slicing
Software
FlowVisor
FlowVisor
Console
7
Applications
LAVI
ENVI (GUI)
…
n-Casting
NetFPGA
Software
Ref. Switch
Broadcom
Ref. Switch
OpenWRT
PCEngine WiFi AP
Commercial
Devices
…
Monitoring/debugging tools
oflops
oftrace
openseer
Open vSwitch
HP, NEC, Pronto, Juniper.. and many more
Beacon
Trema
Maestro

Introducción aOpenflow

Aproximación a openflow
Plano de Control separado del plano de conmutación
Plano de Control Centralizado.
OpenFlow controller(La plataforma).
Lógicamente centralizada y fisicamente distribuida.

Plano de conmutación distribuido.
OpenFlow switches (Pueden ser routers,firewalls).
No es necesario tener protocolos de routing .
Software (kernel, hypervisor, userspace),
Hardware (merchant silicon, ASICs, OpenFlow optimized ASICs)
OpenFlow es el protocolo entre el plano de control y de conmutación.

Plano de Control centralizado y conmutación distribuido.
OpenFlow controller
Plano de control centralizado
OpenFlow protocol
OpenFlow switch
Plano de conmutación