Utvikling innen programmerbare nettverk og Internett skalering … · 01/12/2016  · Classic...

Utvikling innen SDN/NFV og Internett skalering med innvirkning på nettnøytralitet UiO 12.1.2016

Nettnøytralitet og konkurranserett - rettslige, økonomiske og tekniske perspektiver.

2) Net neutral, best-effort classic Internet substituted by cloud-based service delivery with QoS/QoE assured supply chains

1) Network neutrality doesn't promote or reward network service development or competition among service providers.

2

Network neutrality. What have you done for my Internet-based supply chain lately?

Based on SDN/NFV developments

Not allowed to utilize SDN/NFV

developments (for E2E control)

3

Political correct Internet fast lanes fast approaching (spilling into Internet consumer setting)

4

Classic Internet - basics

Internet

Customer router

ISP router

Peering/ transit router

ISP router

Online service router

Host

Router IP port/adr.

Functions (FW, LB etc)

Control plane: Routing

management

Data plane: Forwarding

= expensive (high market entry)

Internet-based supply-chain

5

* Model by Justyna Bak, Riverbed Technology

SDN/NFV 101*: Network resources on-demand

• Decouple control plane of routers and switches from data plane - make control plane programmable from anywhere

• Move routers onto cheap x86 hardware

• Reduce cost of the network as expensive, feature-rich switches and routers are no longer needed

• Split and virtualize network elements and services from underlying hardware

• (LB, FW, DPI, application and IP accelerators)

• Program anywhere in network or cloud

• Increase scalability by dynamically allocating hardware capacity to the network functions needed at a given time

6

"New" SDN/NFV Internet: Routers, NFV and capacity on-demand – easy traffic "manipulation"

ISP

Customer router

ISP data router

ISP data router

ISP data router

Online service router

Host

NFV - IP port/adr. functions (FW, LB etc)

Control plane: Routing

management

Data plane: Forwarding

Control plane: Routing

management

Rou

ter d

e-co

uplin

g =

less

cos

t, lo

wer

bar

riers

NFV

NFV

8

This has happend

Cloud

Internet

9

Nowadays…

Private/public cloud SDN/NFV-based nets

Internet Service

DC

User

NFV

FW CDN

CPE router

L4-7 Accel

QoS Controller

R R R

Controller (NOC)

Home

Best-effort, neutral Internet

10

Cloud NFV – low-cost E2E supply chain management and control for "everyone"

Private/public cloud SDN/NFV-based nets

Start-up/ Internet giant

Didn't get the memo

NFV Cloud

router

L4-7 accel.

CDN

CDN

E2E supply-chain control

Traffic manipulation (and QoS) is good

1. SDN/NFV = easy, low-cost network traffic manipulation for anyone

2. Significantly lowers threshold for access to advanced networking functionalities (for end-users, SME, service providers)

3. Makes it significantly cheaper to program and manage E2E network functionalities

4. Improves E2E supply/value chain control and network predictability

(while still treating all users equal)

11

12

Net neutrality – neutrality vs transparency

Neutral Transparency Open

Equal treatment of packets and traffic Equal treatment of senders and receivers

Open traffic policy, optimization and QoS Equal treatment of senders and receivers

Current approach: Best-effort, neutral is good enough (NKOM, EU)

13

Net neutrality, ver 2 Best user experience possible, incentives for network investments and development

Neutral Transparency Open traffic optimization

Equal treatment of user groups

Great, optimized performance

for all! Why has net neutral, best-effort traffic management become the holy grail of Internet access, consumer and business supply chain management?

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Everything "neutral and equal" – competition where?

• No competition on network performance – just "speed"

• No optimization for specific services (streaming, gaming, VPN, ecommerce)

• No competition on interconnect (peering & transit)

• No competition on best E2E x-ISP/cloud performance

• Everything is equally dumb, but "neutral"

• Great Quality of Experience gets rewarded

• Poor performance gets penalized (no hiding behind "neutral")

• Incentives for investing, network and service innovation and development

• Fosters cooperation between ISPs to achieve great E2E performance

15

*Besides gradual increase in subscribers subscribed access speed

When all traffic to be treated equally dumb: 1) Both customer/consumer and supplier penalized for bad, best-effort, but "neutral" Internet supply-chains shared market interest. 2) Current NN approach doesn't reward network service development and doesn't drive competition on network performance. 3) Nothing exciting* has happened in Norwegian/Nordic/European networks for years – time to let service providers compete! 4) Users and businesses will move to QoS, network optimized cloud providers for better E2E control and performance

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*Atlas Internet Observatory reports, Internet Traffic Evolution 2007 – 2011, Craig Labovitz, April 6, 2011

Internet developments:

Main players

building scale and securing

E2E value-chains

Internet traffic dominated by some players since 2009* • In 2007, thousands of ASNs contributed 50% of content • In 2009, 150 ASNs contribute 50% of all Internet traffic • 2010: Top 10 ASNs approx 40% of Internet traffic

All top Internet players securing value chain control for consumer QoE • Multi-region DCs: Everyone who is anyone on the Internet • CDNs (3rd party or own): Google, Netflix, FB, MS, Apple • Private peering, Internet bypass, cloud-based delivery:

Netflix, Google, MS, FB

Cloud-based networking enables Internet bypass • Direct access to clouds from IX: AWS, Azure, Google, IBM,

Rackspace etc • SDN/NFV-based networking and QoS in clouds • Minimal investment in basic Internet infrastrcuture