PacketPushers.net

SDN is Tomorrows Reality

but you’ll love it when it gets here

CloudCamp London

20130424

PacketPushers.Net

About Me

•Host of Packet Pushers Podcast

• “Cloud Plumber” at Canopy Cloud Cloud Network Architect, Office of CTO ( Division of Atos )

• Blog - EtherealMind.com

•NetworkComputing.com (http://

networkcomputing.com/blogs/author/Greg-Ferro)

• Slides: speakerdeck.com/etherealmind

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PacketPushers.Net

What is SDN ?

• Replace the “vSwitch” with “Network Agent”

• Build Overlay Network with tunnelling protocols

• Replace the Network “Driver” with a “Network Agent”

• Switch Fabric on the Motherboard.

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Physical Network

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SDN Network

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PacketPushers.Net

Why SDN ?

• Software configurable networking

• Automated deployment

• Automated change

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PacketPushers.Net

Networking is in my way• A Network is SINGLE SYSTEM

• every element is interconnected to another in the LAN or WAN or both. Rebooting a device might/could take down the whole network

• distributed, self healing, eventual consistency

• Shared Risk / Failure Domains

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PacketPushers.Net

SVR

MPLS/WAN

RTR

Internet

RTR

FWL FWL

SVR SVR

SVR SVR

SVRSVR

DC Network Today8

PacketPushers.Net

MPLS/WAN

RTR

Internet

FWL FWL

SVR SVR

RTR

FWL FWL FWL FWL

RTR RTRRTR

SVR SVR

FWL FWLSVR SVRSVR SVR

SVR

Physical Network Services

Cloud Networking 9

PacketPushers.Net

SDN Networking

• BILLING NETWORK SERVICES

• Use XX small network appliances instead of HA pair of physical devices

• Distribute complexity, reduce failure impact

• more complex network design

• You MUST deploy / build automation & monitoring to manage complexity

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Controller Networking

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East West LAN

SwitchesNetwork SDN Controller

OpenFlow

Quantum/OpenStack Configuration Controller

Orchestration Controller

Northbound SDN

Northbound SDN

Southbound SDN

North/South LAN

PacketPushers.Net

Disruption Resistance• Vendors - market disruption

• SDN moves networking services into the “vSwitch” - process disruption

• Build an OVERLAY Network - design disruption

• Network & Server integrated - organisational disruption

• Technology will take 2 years to mature

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PacketPushers.Net

SDN Futures

•Multi Data Centre

•MPLS integration

• Physical Network integration

•QoS

•Operational Depth

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PacketPushers.Net

SDN Vendors• Real Products

‣ BigSwitch Networks

‣ NEC

‣ Midokura

• “Shipping”

‣ Nuage Networks (Alcatel/Lucent)

‣ Contrail (Juniper)

‣ VMware/Nicira

• Still Working on It

‣ Cisco (multi-product, multi-strategy)

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PacketPushers.Net

About Me

•Host of Packet Pushers Podcast

• “Cloud Plumber” at Canopy Cloud Cloud Network Architect, Office of CTO ( Division of Atos )

• Blog - EtherealMind.com

•NetworkComputing.com (http://

networkcomputing.com/blogs/author/Greg-Ferro)

• Slides: speakerdeck.com/etherealmind

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