Delivering Composable NFV Services for Business, Residential and - - PowerPoint PPT Presentation

OpenStack Summit | Barcelona, Spain

Delivering Composable NFV Services for Business, Residential and Mobile Edge

Pere Monclus, CTO @ PLUMgrid Azhar Sayeed, Telco Chief Architect @ Red Hat

Introduction

2

CTO, PLUMgrid

Monclus

Pere

Chief Architect, Telco. Red Hat Inc.

Sayeed

Azhar

• NFV, What, Why, How?
• What is the Problem?
• Composable NFV Services
• Help! Ideas
• Summary

Agenda

3

NFV, what, why, how?

Virtual Network Functions Evolution

4

• Optimized for each function

to maximize performance

• Slow to deploy & update
• Fragmented non-commodity

hardware, Vertical Design

• Physical install (per

appliance, per site)

Physical

• Standard high volume Hardware
• Independent Software Vendors
• Open Ecosystem
• Fast on-demand deployment & update
• Variable performance and support for optimization

Virtual Container-based

Realizing Value for Technology Providers

Jumpstarting an NFV ecosystem

5 MANAGEMENT & ORCHESTRATION

VIM

NFVi

SD-COMPUTE SD-NETWORK SD-STORAGE

VIRTUAL NETWORK FUNCTIONS ECOSYSTEM

• Standardized Framework
• Proper definition of VNF
• Well understood Insertion approaches
• Well defined management interfaces
• Scale Out model
• Go to market
• Flexible delivery
• Choose & deploy from portfolio of options
• Shorter testing/deployment/upgrade

cycles

Towards a “Market place” of VNFs for the new wave

• f SW Network Technology Providers

Realizing Value for Operators

Carrier Benefits

6

• Service Creation
• Introduction and monetization of new services
• From concept to production in short timeframes
• Operational Benefits
• Ease of automation and Increased deployment agility
• Scale Out architecture
• Visibility with monitoring and alerting
• Reliable (Self-healing, Highly Available, no SPOFs)
• Cost effective
• Multi-tenant
• Flexible
• Shortened GTM cycle

MANAGEMENT & ORCHESTRATION

VIM

NFVi

SD-COMPUTE SD-NETWORK SD-STORAGE

VIRTUAL NETWORK FUNCTIONS ECOSYSTEM

Provide customers a richer set of services. Enable a “Marketplace”

NFV most common use cases

Flexibility and openness enables innovation in many markets

vCPE/SDWAN vPE vEPC, vIMS GiLAN

7

vCPE reference design

Customer Premise Equipment (CPE)

• Management intensive
• Rigid to changes in operational models
• performance limited
• static and immune to demand changes

Virtualizing the Customer Premise Equipment (vCPE)

• Use software implementation on general purpose hardware to

provide services to residential and business customers & Moore’s law economies of scale

• Low overhead - centralized control and management - No

truck roll

• Performance can scale with the cloud
• Dynamic and flexible with ability to add and drop services

easily

Internet

NFV Cloud

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vCPE reference design

Thin / Thick vCPE Model

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Enterprise Software Defined Central Office NFVI - POP Internet Residential vCPE Enterprise vCPE NFVO SDN Controller VNFM(s) VIM Residential

VM VM

Life is good

vCPE and NFV as the answer to many problems

10

• NFV, What, Why, How?
• What is the Problem?
• Composable NFV Services
• Help! Ideas
• Summary

Agenda

11

12

Let’s size it.

Sizing the reference design

https://en.wikipedia.org/wiki/List_of_countries_by_number_of_households

Residential vCPE Infrastructure Sizing: Number of Servers

Residential Households:

• China: 455.9 Million
• India: 248.4 Million
• Europe: 218.9 Million
• USA: 133.9 Million

10% vCPE penetration 2 VM per CPE 100 VMs / server 30% vCPE penetration 2 VM per CPE 100 VMs / server 50% vCPE penetration 2 VM per CPE 100 VMs / server

2.1 M Servers 6.3 M Servers 10.5 M Servers

Households vCPE Adoption Servers Needed

13

Sizing the reference design

https://en.wikipedia.org/wiki/List_of_countries_by_number_of_households

Residential vCPE Infrastructure Sizing: Bandwidth

Residential Households:

• China: 455.9 Million
• India: 248.4 Million
• Europe: 218.9 Million
• USA: 133.9 Million

10% vCPE penetration 10 Mbps / CPE 30% vCPE penetration 100 Mbps / CPE 50% vCPE penetration 1 Gbps / CPE

500Mbps / Server

( 2.1M Servers)

5Gbps / Server (6.3M Servers) 50Gbps / Server (10.5M Servers)

Households vCPE Adoption / Speed BW per Server

14

How big is the pie?

In terms of number of servers

15

10M servers at USD 5,000 per server = USD 50B investment…

NFV

Industry

Cloud

Industry

2 to 10 Million Servers? 3 to 10 Million Servers?

Really???

• NFV, What, Why, How?
• What is the Problem?
• Composable NFV Services
• Help! Ideas
• Summary

Agenda

17

We need more…

18

Business vCPE + Other Branch site software

Compute node(s) running the following functionality at the branch

• vRouter with the following services
• WAN connectivity with IPSec
• Firewall
• Intrusion Protection
• DHCP services
• WAN optimization
• Branch Compute
• DNS
• AD/LDAP agents
• Physical Security applications – Video Monitoring,

Security sensors etc

• PBX
• Wireless LAN Controller

PBX Branch Router DNS, LDAP Branch Apps Wireless LAN Controller FW

Converged Branch Virtualized Environment with vCPE with vRouter+ Compute, Storage and Apps FW, DHCP, WLAN Controller

Current Branch

DHCP

Service Function Chaining Models

Service Insertion / Service Function Chaining

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Topology Based Service Insertion

Virtual Domain

Distributed Policy

Edge Policy Enforcement Point

Policy Based Service Insertion

Virtual Domain

Distributed Policy

Service Chain

We need more … Composable NFV Services

More means… many more!!!

Security Services

• vFW - Firewall
• vALF - Application Level Firewall
• vIPS - Intrusion Protection

WAN Access Services

• WAN Optimization
• SDWAN

Virtual VPN concentrator Residential Services

• vRouting
• vEmail Scrubber
• vIDS - Intrusion Detection - Perimeter Services
• vQuota Management
• vPersonal Firewall

Managed/Business Services IPAM - IP Address Management

• vDNS -
• vDHCP
• vNAT

Data Services

• vLB - Load Balancer
• vDPI - Deep Packet Inspection

Virtual Content Cache Node

• Video Cache
• Video Optimization

20

Redrawing vCPE design

Internet

HFC/GPON Demarc Point L2 NID

Ethernet VM

DC Switch vFW vFW Traffic-O vRouter QoS VxLAN VxLAN VxLAN

Sub Configuration Policy

AAA

VM NAT VM

Quota Management Parental Control

VM NAT

vIPS/ Malware vLB

VM VM VM

App or Content Cache

uCPE nCPE

21

22

Let’s size it.

Sizing the reference design

https://en.wikipedia.org/wiki/List_of_countries_by_number_of_households

Residential vCPE Infrastructure Sizing: Number of Servers

Residential Households:

• China: 455.9 Million
• India: 248.4 Million
• Europe: 218.9 Million
• USA: 133.9 Million

10% vCPE penetration 6 VM per CPE 100 VMs / server 30% vCPE penetration 6 VM per CPE 100 VMs / server 50% vCPE penetration 6 VM per CPE 100 VMs / server

6.3 M Servers 13.2 M Servers 31.5 M Servers

Households vCPE Adoption Servers Needed

23

How big is the pie?

In terms of number of servers

24

NFV

Industry

6 to 30 Million Servers?

Cloud

Industry

3 to 10 Million Servers?

30M servers at USD 5,000 per server = USD 150B investment… !!!

Really???

• NFV, What, Why, How?
• What is the Problem?
• Composable NFV Services
• Help! Ideas
• Summary

Agenda

26

27

Back to the drawing board…

This time with the ruler!!

Exploring Solutions

We need to look for efficiencies in multiple dimensions

Density Bandwitdh Architectural

FD.IO/VPP XDP/IOVisor DPDK/OVS Smart NICs SR-IOV

Multi tenant VNFs

Containers Serverless Computing

New VNF models (distributed Data Path) Thin/Thick CPE Policy based Networking Service based Networking Tethered CPE

Needed Goals:

40-100Gbps / server 100x to 1000x density improvement Simplify operations, visibility and management. Extensibility/new services.

28

About Bandwidth

29

Bandwitdh FD.IO/VPP XDP/IOVisor DPDK/OVS Smart NICs SR-IOV

40-100Gbps / server

Things to consider:

• Raw PPS/BW
• Current feature set / Future feature set
• Programmability & Ecosystem of developers
• Solution for VM, Containers or VM & Containers
• Beyond Networking: Security/Policy at all dimensions of

infrastructure

• Part of Linux Kernel / External to Linux Kernel
• Isolation of environments
• HW assist

About Architecture

30

Architectural

Thin/Thick CPE Policy based Networking Service based Networking Tethered CPE

Simplify operations, visibility and

• management. Extensibility/new services.

Things to consider:

• Thin/Thick CPE transition steps
• Alternative models? Tethered CPE or uCPE
• Do we need to change our thinking towards

networking (from topology to policy/services)?

About Density

31

Things to consider:

• HW to VNF VM as first transition (1-1)
• Complex Multitenant VMs to Single Tenant VMs (1-N)
• VM to Containers next logical transition (1-1)
• What about other models? Equivalent to AWS Lambda for

networking? (N-0)

• Control Plane – Data Plane Separation (N-1)
• Vendor Ecosystem and Marketplace around the different

technologies Density

Multi tenant VNFs

Containers Serverless Computing

New VNF models (distributed Data Path) 100x to 1000x density improvement

Red Hat and PLUMgrid Solutions

Overlay Service Chain VNF

PLUMgrid Open Networking Suite

Specific VNFm (e.g. Tacker) ManageIQ/Cloudforms RHOSP Openstack VM and Virtual Infra (RHEL)

Tenant Networks

Or-Vi HOT, API

Ansible & Tower

API, Or-Vnfm, VNFD Vi-Vnfm Vi-Vnfm, HOT Nf-Vi REST API R E S T Nf-Vi

IOVisor 32

• NFV market is happening, 5G as a potential main

driver in the coming years

• Still some unresolved problems around the overall

solution, but well understood and with active development on those areas

• No ‘universal solution’ that fits all the NFV use cases
• yet. But specific solutions for certain use cases already

in Production

• VNF vendors slow to play nice with the NFV

ecosystem / marketplace. Need for new generation of start ups that will deliver VNFs in new form factors

• Try it!

Conclusions

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Visit Us @Booth B37 & D1

THANK YOU!