Dell SDN 創造網路大未來

楊尚餘

網路專家

Change

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The next wave in IT is here New technologies and architectures drive greater IT efficiencies

Sources: 1 Analyst Reports

Power & Cooling 50% will have a project by 2016

50%

$$ $$ $$ $$ $$ $$ $$ $$

$ $ $$ $$ $$ $$ $$ $$

$ $ $$ $$ $$ $$ $$ $$

Big data >50% Enterprises to invest in next 2 years

50%

Cloud 80% hybrid by 2015 80%

Data growth 25X BW/rack by 2015 25X

Mobility (VDI, Devices – BYOD)

3X more devices than a year ago 3X

Virtualization 80% server virtualization by 2016

80%

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Challenges in the new Data Center Physical and Virtual Networks

Blade Infrastructure

Rack Infrastructure

Internet

Campus Networking

Storage

Data Center

Virtualization scaling & operations • New workloads, additional bandwidth

• New traffic patterns require seamless transfers over physical and virtual networks

• Infrastructure automation needed for easier configuration & management

Physical Infrastructure Consolidation • Servers: 2-socket, 4-socket servers;

Bladeservers; VRTX

• Storage: Flash/SSD solutions; Dense disk enclosures

• Networking: Small-form factor fabric designs, and now…

Active Fabric

New Workloads driving East-West Traffic

Physical Server Footprint

Virtual Server Footprint

GAP

Changing infrastructure

• Less physical

• More virtual

• More interfaces

• How do you address

the gap?

New workloads

• More east-west traffic

• More physical

consolidation

• More network bottlenecks

• How do you optimize?

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N servers

Flat DC Network Enabled by TOR

Classic 3-Tiered DC Network

• Discrete servers; hierarchical network

• Static network design • Intelligence in the core • Massive oversubscription

• Physically packaged with separate compute fabric vs. Ethernet fabric

• Intelligence Edge but hindered by static core

• Intelligent, autonomous with rack-scale fabric and switching function

• Resilient distributed core fabric with ease of mgmt.

Rack-scale CI Fabric

Software-defined Enterprise Fabric

Core Switches

ToR Switches

Distributed Core fabric

Demand for Data Center wide fabric architectures

Data Center Network Architecture Evolution

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Data Center

Compute

Storage

Biz Apps

L4-L7

Cloud

Compute

Storage

L4-L7

Biz Apps

Campus

Wired

Wireless

BYOD

VDI

However, It is not just about Networking…

Common Policy Framework

Efficient, Reliable, Secure, Application-driven Operations

Seamless Workload

Migration Seamless Mobility

Analytics & Visualization

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Software Defined Networking (SDN)

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Why is everyone interested in SDN?

Agile, automated, shared infrastructure

Mobile Cloud Big Data Agile enterprise

Provisioning time today

Servers Networking

Customers are looking for • Programmability & automation for

innovation & agility

• Multi-tenancy for sharing infrastructure

• Network services independent of HW, location & topology for flexibility

• Open standards & interoperability for lower CAPEX

• Simpler management & control for lower OPEX

IT Drivers

Weeks/months Minutes

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Software Defined Networking (SDN) is a emerging network architecture where the control plane is separated from the forwarding plane.

What is Software Defined Networking (SDN) ?

Data Plane

Control Plane

Data Plane

Control Plane Fe

atu

re

Feature Feature

Data Plane

Data Plane

Control Plane Fe

atu

re

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SDN at High-level Definition

• Allows the network forwarding plane to be manipulated directly by a software program that does not reside on the forwarding hardware itself

Components

• Software

• Controller

• Switch

Use Cases

• Traffic Segregation

• Flow Steering

• Network Virtualization

Switch OS

Forwarding Hardware

Network Protocols

Forwarding Plane

Flow Config APIs

Control Plane

… … …

SDN Interfaces

Legacy Hardware Stack

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What is SDN/ OpenFlow Model?

Control Plane (SDN

Controller)

Switch: Data

Plane

Logical Switch

Mgmt & Analytics

Switch: Data & Control

Plane Plane

API

(e.g. OpenFlow)

Mgmt

SNMP/CLI

XML

NETCONF

Network Services

Traditional Model SDN Model

• Problem: Current networking model limits innovation, flexibility, scale & agility

• SDN separates control plane from data plane

• Benefits expected from SDN – Scale and evolve control plane independent of network devices

› Faster innovation

– Programmability of the network: better control/visibility on network traffic › Flexibility & Simplified management

– Network virtualization and service orchestration at a large scale › Scale & Agility for shared infrastructure

Network Services

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Dell Networking Point of View on SDN Standards & Open Source

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Open Standards & Open Source

- ONF

- OpenDaylight

- OMG

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Maximize choice with a complete and unbiased approach to Dell SDN

Legacy Environments

Northbound

Southbound

Software Defined Networking

Greenfield & Cloud Environments

Applications&

Hypervisors

• NVO Gateway for

VMware & Microsoft

• Legacy Interoperability

• Open Automation

• OpenFlow & Controller

Interoperability

OpenFlow (OF)

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16 Confidential

OpenFlow Status

• OpenFlow is an open standard • Version 1.0.0 came out Dec 31,

2009

• Current version is 1.4 (Aug 13th )

• Enables researchers to run experimental protocols in the campus networks we use every day.

• Vendors do not have to expose the internal workings of their network devices.

• Drive network innovation

Network Admin

OpenFlow API

Data Plane

FTOS

Controller Platform

Network Admin

End Hosts

Application Application Application

OpenFlow API

Data Plane

Secure Connection

End Hosts

Control Plane

Data Plane

Control Plane

Data Plane

Benefits of SDN

• Control plane performance and scalability can be increased independent of CPU and memory limitations of network devices

• Scale-up

• Scale-out

• In-line control protocols can be eliminated entirely, and replaced with centralized control logic

• Sophisticated traffic management and network control can be implemented more easily

• Network device operations are made simpler, and easier to manage

• The network devices potentially become less expensive to build

Scale-up

SDN Controller

Data Plane

Data Plane Data Plane

Scale-out

Loop Prevention

Path computation

Multi-path Connectivity

Policy-based Routing

Multi-tenancy

Performance, Scalability, Flexibility, Ease of Operation

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Dell Active Fabric – The foundation for SDN

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Dell Active Fabric

Active Fabric

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Dell Active Fabric Automation for high performance & cost savings

recommends fixed form factor switches “as an alternative to chassis-based switch architectures”**

Reduce capital costs up to 70%, operational expense by up to 30%

Traditional chassis-based architectures drive power, cooling, and cost up

Traffic is forced into a multi-tier pattern, adding latency

Download the report at Dell.com

**Rightsizing the Enterprise Data Center Network, 3/20/13 http://www.dell.com/Learn/us/en/uscorp1/secure/gartner-enterprise-data-center-network

Spine

Leaf

Conventional Core Dell Active Fabric

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Traditional and Dell Active Fabric Compared

Core

Aggregation

Access

Scalable Start with minimum Spine and Leaf nodes, add more as needed (up to 8000+ ports)

Supports large layer 2 and Layer 3 networks

Resilient

No spine node carries significant percentage of core traffic (100/n %)

A 16 spine design results in 6.25% traffic loss versus a 50% loss in the case of a centralized two core box solution

Efficient

With a 16 spine design 93.75% total network utilization available on a node failure versus 50% with traditional Dual Chassis core design.

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SDN & Network Programmabilitymability • Open northbound API’s

– OMG aligned for standardization

• OpenFlow support – ONF aligned for adoption

• Unix-based modular OS

• Platform development kit – TCL, Perl, Python

• API’s for Programmability – RESTful APIs, XML, OMI

The Future of Cloud Network

• Clos architecture

• Massive Scale/Scale-out

• Network Elasticity

• High Performance 10/40G

• Low-cost fixed switches

• L3 Multipathing & Robust ECMP

• Network Virtualization Overlay

• SysOps & DevOps Support

The Future of Enterprise

• L2 Multipathing

• Large L2 Domain support

• DCB & Convergence

• FC/FCoE Support

• Layer 2 Routing

• L2 Data Center Interconnects

Active Fabric: Purpose-built for Virtualized & Cloud Data Centers?

Enterprise Fabrics Real SDN & Programmability Cloud Networking

DELL Active Fabric solves

Network Virtualization Overlay (NVO)

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What is Network Virtualization Overlay ? • Software-based networks that can be created on-demand

• Built upon existing networks using tunneling or encapsulation

H2

H1 H6

H4

External Network

Virtual Network 1

H5

H1 H6

H4

External Network

Virtual Network 2

Network Switch

Network Switch

Network Switch

Network Switch

Network Switch

Network Switch

Network Switch

Network Switch

H1 H6 H5

H2 H3 H4

Data

Ce

nte

r A

Data

Ce

nte

r B

NVP: VMware Controller

H2

H1 H4

H3

External Network

Virtual Network 3

NVGRE

Network Virtualization using Generic Routing Encapsulation

VXLAN

Virtual eXtensible Local Area Network

STT

Stateless Transport Tunneling

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New !! S6000

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32 x 40GbE QSFP+ Ports

Ethernet Management Port

USB-A Port

3 x Fans Power Supply Power Supply

IO Side

PSU Side

RS232 / RJ-45 Console Port

USB-B Port

System LEDs

Stack# Indicator

S6000 IO Side and PSU Side View Next Gen 10/40G 1RU top-of-rack switch

Take advantage of the Power of Ten Increase bandwidth 10x for your applications

MXL blades

Reduce capital expenses by up to 30% in chassis deployments simplifying cabling & management in a blade infrastructure

FTOS-powered 10Gb top of rack switches deliver integrated support for SDN, virtualization, automation & storage networks

S4810/20T

Dell’s first fully modular 1RU switch for LAN/SAN convergence delivering 10Gb Ethernet and 8Gb Fibre Channel in a flexible pay-as-you-grow design

S5000

High performance & high density 10/40Gb switch to support today’s virtualized & cloud data centers

Z9000

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Dell MXL 10/40GbE Blade Switch High performance full-featured 1/10/40GbE Layer 2/3 switch blade

• FTOS-powered 10/40Gb switching in the chassis

– 32 x 10Gb internal ports

– Up to 6 x 40Gb external ports/uplinks

– FlexIO modules provides flexible “pay as your grow’ capability

• Integrated automation, scripting and

programmatic management

Designed for end-to-end converged networks

30-40% Capex savings

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Dell Z9000 Fabric Switch High-density 10/40G in a rack-optimized fixed form factor

Scaling the data center core up, down and out

• 2.5Tbps in 2RU footprint

• High-density networking

– 32 line rate 40GbE or

– 128 line rate 10GbE

• Low power consumption

– 800 Watts Max (6.25W per 10GbE)

– 600 Watts Typical (4.68W per 10GbE)

Dell Networking Z9000

Read the report Distributed Core Architecture www.force10networks.com/tollyreport

Product of the year award Internet Telephony

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Dell Networking S4810P/S4820T switch 1/10/40G top-of-rack switch

• FTOS-powered top-of-rack switch

– 48 x 1/10G

– 4 x 40G fabric uplinks (or 16 x 10G)

• Built-in virtualization support (VMware, Citrix)

• DCB support for SAN/LAN convergence (iSCSI, FCoE)

• Integrated Open Automation, scripting and programmatic management

Dell S4810

Works with:

+ Great with Dell servers & storage

Accelerate 1G to 10G migration

Dell 4820T

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Dell Networking S5000 Unified Switch Dell’s first fully modular 1RU top-of-rack and fabric switch • Pay-as-you-grow, customizable modularity

powered by FTOS

– 10GbE; 40GbE

– 2, 4, 8G Fibre Channel

• Future-ready, multi-stage design for next-gen I/O without rip & replace

• Unified storage networking, with complete support for iSCSI, RoCE, and FCoE with FC fabric services

• Reduced management complexity, Integrated automation, scripting and software programmability

• Easy integration, strong interoperability with major adapter, switch, & storage solutions

Dell Networking S5000

Ethernet Module

Unified Port Module

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Roadmap

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Multi-tenant network orchestration

• Multiple providers • Network virtualization

Policy-based service

chaining

• Traffic steering • Fine-grain policy control

Zero-touch fabric deployment

• Auto discovery • Auto configuration

Centralized fabric

control

• Optimized path setup • Resiliency

Dell SDN based Fabric Focus Areas

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SDN Success Cases

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Dell-CSM SDN Solution Win announcement

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Why DELL

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Fueling Networking Growth & Momentum An integral part of our Enterprise fabric

Source: Dell’Oro reports

New Customers 30K+ CY2012

New campus/branch & data center customers

E2E Solutions +15 Pan Dell

Networking-enabled architectures & attach

Market share #2 in 10/40GbE

#3 overall in Ethernet switching

10 consecutive quarters of quarterly &

yearly growth

Networking revenue up +19% Y/Y

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Dell Networking, the right choice for your network

Driving an open, interoperable networking framework for efficient IT

Offering no-compromise converged solutions and software to simplify the complex

Leading in 10G and 40G and an innovator in high-performance, economical fabrics

Open Choice

Innovative Solutions

Simple Value $

1-2-3

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Thank you