I2JT 2012.07 dward...2012/07/17 · ISP/ Partners Off-Net Customers Off-Net Provider • Enable optimal resource usage • Enable higher quality services with increased service velocity

© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1

2012.07

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Delivers The Next Generation Internet

Adaptable Architecture Bringing the network to applications

How to Harness Network Value

How to Sustain Profitability

How to Increase Business Agility


Private Cloud Automation

Research/ Academia

§  Experimental OpenFlow/SDN components for production networks

Massively Scalable

Data Center

§  Customize with Programmatic APIs to provide deep insight into network traffic

Service Providers

§  Policy-based control and analytics to optimize and monetize service delivery

Enterprise

§  Virtual workloads, VDI, Orchestration of security profiles

Cloud

§  Automated provisioning and programmable overlay, OpenStack

Diverse Programmability Requirements Across Segments

Scalable Multi-Tenancy

Network Flow Management

Network “Slicing”

Agile Service Delivery


CISCO: ONE – First of many activities

Comprehensive Developer Kit across IOS, IOS-XR and NX-

OS

onePK

1. Platform APIs

OpenFlow v1.0 Agent

Controller software And Agents

2. Controller/Agents

OpenStack and REST API

Nexus 1000V

Multi-Hypervisors

Overlay Virtual Networks

VXLAN Gateway

Security, Services Chaining

3.


Edge

Core Mobile

CPE

Appliance

Service

Service Service

Service CLI(s)

Transactional, No Guaranteed State •  Go OTT—speed

and agility

•  Avoid network interaction—complex and slow innovation

A New Programming Paradigm is Needed

FAST App App

Network

SLOW

Slow

New


•  Enable a holistic Network Programming model

•  Leverage and extend infrastructure at pace of the business

•  Deploy common applications across all devices

•  Extend/upgrade/add features without upgrading the network operating system

•  Reduced time to market by leveraging common platform for building services

Full-Duplex access at multiple layers and networking planes

6

Transport/Device

Forwarding

Control

Network Service

Orchestration

Management

App Dev

Har

vest

Net

wor

k In

telli

genc

e Program

for Optim

ized E

xperience


•  Abstractions allow the definition of layered APIs and NPIs

Enable multi-layer APIs across all elements, to integrate with operator development environments Accelerate development of network applications: Integrated stack from device to network Multiple deployment modes , local and remote APIs Multiple Language and Virtualization options

Device Capabili,es

and Configura,on

Debugging Diagnos,c Events

Network Topology

Service Path

Network Stats

Service Placement

Interfaces and Tunnels

Neighbor Discovery

Packet Data-‐Path Access

Forwarding Policy, QoS

Service Discovery

Rou,ng Address Mapping

Device focused abstrac,ons Network focused abstrac,ons

API API API API API

NPI NPI NPI NPI NPI

API API API API

Example Abstrac,ons


API infrastructure

8

Net

wor

k To

polo

gy

Rou

ting

Forw

ardi

ng

Pol

icy,

QoS

Dat

a-P

ath

Acc

ess

Inte

rface

s an

d Tu

nnel

s

Con

fig &

C

apab

ilitie

s

Deb

uggi

ng

Dia

gnos

tics,

E

vent

s

Ser

vice

D

isco

very

Ser

vice

P

ath

Ser

vice

P

lace

men

t

Net

wor

k st

ats

Ana

lytic

s

Add

ress

M

appi

ng

API infrastructure Agents

Forw

ardi

ng

Pol

icy,

QoS

Dat

a-P

ath

Acc

ess

Management Plane

Data Plane

Control Plane

Management Plane

Data Plane

Control Plane

OF-Agent

Generic Controller

APIs NPIs

App

App

App


•  Programmatic configuration – Yang data model via NetConf/ReST-HTTP •  Tunnels/Encapsulation: MPLS, IPnIP, GRE, L2TP, UDP, OTV, VXLAN •  Topology and “weather report” export •  Transport: Lambdas • Cross Connect • Routes, VPN • Classifiers • QoS •  Analytics

Future: Security, DPI, NAT, Gateways


Aggregation

Storage

Compute

Virtualized Functions

Transcode

Consumer Apps

Video Processing

Billing

Svc Delivery

Origin Server

Encryption

Device Mgmt

DATA CENTER

Network Element

Storage Compute

Access

Fiber HFC PON Ethernet

Regional

Hea

dend

Network Element

Storage Compute

Pod

Storage Compute

Pod

Backbone

ISP/ Partners

Off-Net Customers

Off-Net Provider

•  Enable optimal resource usage •  Enable higher quality services with increased service velocity

On the Go Home Business

TransportRouter

Transport Router

Net Services

Storage Compute Net Services

Network Element

Storage Compute Transport Router

Storage Compute Transport Router

Network Element


Residential Bundle

Business Internet

Business VPN

Virus/Malware Scan VoIP Video on Demand

IPv6 DDOS Protection Firewall

IPSec VoIP Firewall

Virtualized Service Abstraction

Operator Applications

3rd Party Applications

Operator OSS/BSS

SP Opportunity: Flexibly create services based on TIGHT SLAs Todays’ Challenges: Manual provisioning, ticket entry, workflows on multiple systems Solution: Enable agile customer service creation with service chaining Technologies: Virtual Path, Service Chaining, Network Virtualization

Application Monitors Network Resources

1

Build Customer Service Profile (e.g VoIP, Firewall, Video)

2

Push Service into Network and Receive Confirmation

3

Enable Service Group and Monetize Delivery

3 $


1. Physical Resource Layer •  Networking, Storage and Compute resources •  Hardware-based networking services

2. Virtualization layer – hypervisors, SDN •  Resource Virtualization Provisioning, and

Management •  Networking extended into vSwitches, etc.

NetConf SDN API Hypervisor vSwitches, etc.

Network Mgmt/Cntl API

Compute Service

Virtual Servers

Storage Service

Virtual Disks

Network Service

Virtual Networks

Plug-In Architecture

3. OpenStack Cloud Platform Layer •  Presents compute and networking

virtualization interfaces to application developers in a multi-tenant environment

Cloud App Developer API

App

OS

VM

DataBase

OS

VM

App

OS

VM

Virtual Appliance

4. User Application Layer •  Self-provision resources through APIs •  Only see virtualized resources

Virtual Appliance


Oth

er N

etw

orks

Video WebRTC, Other Apps

3rd Party APP

IMS

Common Cloud Services Architecture

Network, Service, & Subscriber Enablement

Service Connector

Service Service Service

Service Service

Key Services Architecture Functions

Subscriber Edge

Access Classifier

Open Network API’s


•  1 Layer full mesh, distinct WAN edge

•  2 layers WAN edge and DC aggregation combined

•  3 layers hierarchical WAN edge and DC aggregation separate

•  3 layers + folded clos Meshed aggregation

DC Aggregation / WAN Edge

Access

DC Access

WAN Edge

DC Aggregation

DC Access

WAN Edge

DC Aggregation

WAN Edge


L3 WAN

Meshed Symmetric Topologies Unconstrained Bandwidth Simplified Abstraction Models Workload Mobility Distributed Across L3 WAN Integrated Service Virtualization Secure Containers


IP/MPLS Core

Transport Network

IP/MPLS Edge

IP/MPLS Edge

IP/MPLS Edge

Region A

Region B


IP/MPLS Core

IP/MPLS Edge

Region B

Region A

SP DC1 SP DC2

Ent DC1 Ent DC2

SP WAN DCPE

DCPE

DCE DCE

PE PE

CE CE

Enterprise DCI “back door”

Standalone DCI network


•  WAN NPIs follow their Scope

18

•  Defined by their scope API Scopes: Location independent; Area; Particular place; Specific device

Approaches like device/network/service APIs not mapped to topology

Location where an API is hosted can differ from the scope of the API

•  Different network planes require different programmatic interfaces, based on proper layer interaction

Utility

Area/Set

Place in the Network

Element

Example: Get Auth, Publish Log,.. Scope: Location independent

Example: Domain, OSPF-area,.. Scope: Group/Set/Area

Example: Edge Session, NAT Scope: Specific place/location

Example: interface statistics Scope: Specific element

A Router positioned on the Edge of a WAN != TOR


Router (P)

“Orchestration”

Services (PE)

Multi-Layer PCE

Optical

Optical Router

(P)

DC/Cloud

λ

Service Service Service

Service

Optical

Service Wires

IP/MPLS

Paths Topology

Tunnels Topology

Orchestrated ML-Optimization

IP /MPLS Tunnel

Service Wire

Service Control & Admin

Topologies


DWDM

IP/MPLS

Fiber

λ

λ

λ

TE Tunnel

ML-PCE

DWDM Topology (BGP-LS)

Setup λ’s (PCEP)

Paths

L3 Link Topology (BGP-LS)

Slices

TE Tunnel TE Tunnel TE Tunnel

TE Tunnel

Paths VPN Topology

(BGP-LS)

VPN Topology (BGP-LS)

TE Tunnels (PCEP)


•  Fully centralized control improves automation but does not offer a more reliable, fault tolerant, scalable service delivery across the SP WAN

•  SP Operations require solutions that balance needs of multiple services and customer profiles across multiple domains that meet tight SLAs

•  Multi-Layer Network Visibility and programmability is required for any SDN solution across the WAN

The Network contains the information required for

programmability to meet SLAs


Documents

I2JT 2012.07 dward...2012/07/17 · ISP/ Partners Off-Net Customers Off-Net Provider • Enable optimal resource usage • Enable higher quality services with increased service velocity