next generation ip core evolution and design · 2014. 4. 25. · 1. converged multi-service core 2....

© 2011 Cisco and/or its affiliates. All rights reserved. 1 1 © 2013 Cisco and/or its affiliates. All rights reserved.

Seoul, Korea

March 28 – 29, 2013

주 태 한 부장

[email protected]

Next Generation IP Core Evolution and Design

Cisco Systems, SP SE

Cisco Connect 2

Cisco Connect Korea 2013

© 2013 Cisco and/or its affiliates. All rights reserved.

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Second level

Third level

Fourth level


Agenda

Core Design Options

- 인터넷 환경 & Core Design 고려사항

- Design Option별 조건 및 잇점

Cisco Elastic Core

- 시스코 Core Design 전략

- NG Product Solution

- Technology Innovation Solution

맺음말



“I do not want to pay for all these things I don’t use”

Customer

© 2013 Cisco and/or its affiliates. All rights reserved. 4

Core Design Options



7 Billion

91

767 Quintillion

176 Q in 2009

Quintillion =1018

* Source: Cisco VNI

Bytes of Global IP traffic Mobile-connected Devices

Percentage Share of Video in Consumer Traffic

18,000 5 Year Percentage

Growth in Web Video Conferencing

12B all connected devices

인터넷 환경의 변화 숫자로 본 2015년



Core

Edge

Access

Content

Video Gaming Social

Bandwidth

Cost Borne

by SPs

Revenues

Traffic

Users

Today

Future

오늘날의 인터넷 Trends

Cost of Traffic

Revenue



1. Converged Multi-Service Core

2. Hollow Core

(Router ByPass)

3. Thin Core

4. Lean Core

1. Acquire Content

2. CDN

3. Cloud Computing

Make Money

• New Monetization Models

Save Money

• Cost Optimization (CAPEX, OPEX)

인터넷 트렌드가 SP에 미치는 영향



Service Provider Network의 해결과제 현 Architecture의 애로사항

IP Services Transport Transit

Hollow Core

Slow Expensive Rigid

Lean Core

Full Core

Complex legacy networks unprepared

for ongoing convergence

Not Optimized to handle

growth

Siloed networking and

business paradigms

Technology Centric when you need

business-centric



Hierarchical

Full/ Thin Core

Partial Mesh

Lean Core

Logical Full Mesh

Hollow Core

Future Core Design의 Options

IP Services Transit Transport



Option 1 : Hierarchical Core Designs

IP Service에 특화

Full Core

: Full IP multi-Service

Thin Core

: Lower Queues Size

: Lower QoS functions

: 비용 절감

Full/ Thin Core

• A hierarchy of IP/MPLS

routers connected

• Core Router의 역할:

라우팅 테이블에 따라 목적지로 Traffic을 전송

라우터들간의 연결을 위한 Statistically multiplex 역할

• 1 Physical link = 1 logical IP link

Definition Motivation



Core 및 Edge 라우터의 기능 차이 발생

Core : 단순 포워딩 대용량화, IP Multi Service 기능 최소화

Edge : 다양한 기능 요구 (H-QoS, ACLs …)

비용 절감

Lean Core

• P / LSR (Label Switch Router)

기능에 최적화

• Small routing and Fo

rwarding tables (BGP Free)

• Simplified QoS

• Simplified Control Plane

• Optimized for packet th

roughput

Option 2: Partial Mesh Core Design

Definition Motivation



Core 제거

서비스 중심의 Network 망 운용

OTN 망의 Benefit

비용 절감

L1 Cost < L3 Cost ???

• 모든 IP/MPLS edge router 를 논리적

으로 모든 다른 IP/MPLS edge router

와 연결

• Completely bypasses all the core

routers

• Edge routers connect to the OTN

Digital Cross Connects using eithe

r a channelized OTN or Ethernet int

erface

Definition Motivation Hollow Core

Option 3: Logical Full-Mesh Core Design



Full Core Thin Core Lean Core Hollow Core

Future Core Design의 비교표



Full Core Lean Core Hollow Core

(L1 Bypass) Notes

CapEx $$$ ---> $$$ $$ $ L1 Cost가 L3 Interface Cost보다 확연히 낮을

경우에 효과는 극대화

Opex $$$ ---> $$$

( IP / Optical )

$$

( IP + Optic)

$

( IP + Optic )

Hollow Core는 목적지당 logical link 연결이 필요 운용의 복잡도는 오히려 증가

# of L3 links

(# of nodes: n) Increase with O(n)

Increase with O(opti

on) Increase with O(n^2)

Hollow Core는 목적지당 logical link 연결이 필요

운용의 복잡도는 오히려 증가

Statistical Mux Effici

ency Core & Edge Core & Edge Only Edge (TDM)

Provisioning & Netw

ork Churn

Simple

Aggregate Case

Provisioning

Simple

Complicated

Worse Case

Provisioning

Hollow Core는 Provisioning Change Impacts가

매우 크다

IGP Hierarchical

Topology Optimized IGP

Increasing SPF Area

size and # of adjace

ncies

Hollow Core에서 Multicast 는 모든 Ingress

Hop에서 Replication 된다

Recovery Scenario Simple Neutral Complicated

Future Core Design별 Benefit


Elastic Core Solution



Cisco Service Provider 전략

Develop NG Products Create New Services

Evolving and Empowering Service Providers

Technology Innovation Transformation



The Solution : Cisco Elastic Core New Levels of Scalability, Programmability, and Agility

Slow Expensive Rigid Agile Programmable Scalable

Transport

Hollow Core

Transit

Lean Core

IP Services

Full Core

Cisco Prime Management

IP, Transit

and Transport

Services

Cisco

Elastic Core

Cost of Traffic

Revenue



NG Product : Next Generation CRS 모든 형태의 Core Design에 적용

Single Chassis 8-Slot / 16-Slot

Multi-Chassis Back-to-Back / 8+1

Multi-Chassis

Hardware

Compatibility

400G line rate / Slot

Modular power supply

Fully Interoperable

with CRS-1/3

Full Core CRS-MSC-400

Full IP/MPLS H-QoS

Thin Core CRS-FP400 Full IP/MPLS

Port-mode QoS

Lean Core CRS-LSP400 MPLS Switching Limited IP Scale Fixed PLIMs

4x100GE-LAN/OTN

40x10GE-WLO

Combo PLIMs 2x100GE+20x10GE

5x40GE+20x10GE

Multi-Stage Fabric FC-400/S, FC-400/M Unicast/Multicast Priority

Multicast Replication in Fabric

Investment

Protection

Scalability



Single Multi-Chassis System

CRS

Elastic

Core

NG Product : CRS Multi-Chassis 탄력적인 확장성 제공

Continuous Operation

Industry- Leading Capacity

Cost- Effective

Expansion

Unmatched Investment Protection

LCC-A

Multi-Chassis

CRS10 CRS3

CRS1 FCC

Back-to-Back Multi-Chassis

LCC-B

Scalability



2004 2010 2013

40G

Cards

RP

Fabric

Ch

as

sis

Power Fan

CRS-1 (40G)

40G

Cards

PRP

Ch

as

sis

Power Fan

CRS-3 (140G)

Fabric

140G

Cards

PRP

Ch

as

sis

Power Fan

CRS-10 (400G)

Fabric

NG Product : CRS 투자보호 솔루션 A Future-proof Architecture

40/140G

Cards

400G

Cards

Scalability



NG Product : Expand Spectrum Of Services Increase monetization opportunities with integrated services

IPv6 Cloud NPS

Anti- DDoS

Security

Future Extension

s

Optical Transport

Transit Services

Intelligent IP

Services L4–L7

• 4x Performance increase

• New Anti-DDoS services

• Scale with multi-chassis “Service Bank

New 80Gb Carrier-Grade Service Engine

Improves SP Business Monetization

• Carrier-grade IPv6 transitions

• Demand engineering traffic optimization

• High-performance threat defense

Single System Architecture = TCO Savings

Agility



Touch-less Optical Layer

IPoDWDM

IP + Optical Integration

MSTP MSTP

Proactive Protection GMPLS & nLight

Multi-Layer Control Plane

MSTP

Transponder

MSTP

ROADM CRS or 9K

Virtual Transponder / Virtual Interface CCOFS ROADM / WSON

Scalability

Programmability

Tech Innovation : IP + Optic Convergence Four Pillars of Convergence

1

2

3

4



96 channel tunable

G.709 OTU-4 framing with FEC

Pre-FEC Proactive Protection

Manageable via Virtual Transponder

Industry leading optical performance

Coherent 100GigE DWDM interface

Tech Innovation : 100GE IP Over DWDM 1. IPoDWDM

IP

Router

IP

Router

DWDM DWDM

TP MUX TP MUX

IP

Router

IP

Router

DWDM DWDM

TP MUX TP MUX

Scalability



Tech Innovation : Pre-FEC Proactive Protection 2. IP + Optic Integration

Reactive Protection

working

route

protect

route

fail

over

FEC Limit

Pre

-FE

C B

it E

rrors

R

oute

r B

it E

rrors

LOF

FEC

Time

Router

Transponder

Proactive Protection

protect

route

working

route

FEC Limit

Protection Trigger P

re-F

EC

Bit E

rrors

R

oute

r B

it E

rrors

Hitless

Switch FEC

Time

Router

Virtual Transponder

PLIM

Secure

Management

Channel

Cisco Prime Optical

CRS-3 ONS

15454

• L1 Interface Information

• Wavelength Usage

• Power Levels and Thresholds

• Performance Monitoring

Scalability



Tech Innovation : Cisco nLight Technology 3. Multi-Layer Control Plan

Programmability

MSTP

Client Client

IPoDWDM IPoDWDM

IP Control Plane

GMPLS based Control Plane

DWDM Control

Plane

WSON based Control Plane

Touch-less Optical Layer

Colorless

Contention-less

Omni-Directional

Flex Spectrum

GMPLS Control Plane that is DWDM aware

Control Plane Aware of Optical Impairments



100110101

IP Layer

DWDM Layer OK, I have one that works. Tune your laser to green.

GMPLS Service Request w SRLG

Please provide a circuit to Z that avoids node A, and if it breaks, restore it.

WSON Circuit Turn-Up

10

011

0101

I found a new path. Tune your laser to red.

Fiber Quality Decrease

FRR Traffic Restore

Pre-FEC

Threshold

Crossing

Feature

Tech Innovation : Cisco nLight Technology 3. Multi-Layer Control Plan Programmability



100110101

IP Layer




Omni + Colorless Touchless Provisioning

10

011

0101



FRR Traffic Restore

Pre-FEC

Threshold

Crossing

Feature




100110101

IP Layer




Pre-FEC FRR <50ms switch

10

011

0101



FRR Traffic Restore

Pre-FEC

Threshold

Crossing

Feature




100110101

IP Layer




10

011

0101

WSON Circuit Restore



FRR Traffic Restore

Pre-FEC

Threshold

Crossing

Feature




100110101

IP Layer




10

011

0101



Omni + Colorless Touchless Provisioning

FRR Traffic Restore

Pre-FEC

Threshold

Crossing

Feature




Tech Innovation : Cisco nLight Technology 3. Multi-Layer Control Plan

Programmability

Phase #0

Phase #1

Phase #2

Phase #3

• Deliver WSON capability in Optical Layer

• Enabling Interfaces between Packet and Optical Layer using GMPLS UNI-C

• Intelligence sharing between Packet and Optical Layer (SRLG awareness and Automatic Discovery…)

• Multi-Layer Network Optimization and Automatic Service Set-up

SDN

onePK

POLICY

ANALYTICS



Tunable Laser – Transmit laser

can be provisioned to any frequency

in the C-band (96 channels)

Colorless – ROADM ports are not

frequency specific (re-tuned laser

does not require fiber move)

Tunable Receiver – Coherent

receiver can select one wavelength

among a composite signal (no demux

needed)

Omni-Directional – ROADM ports

are not direction specific (re-route

does not require fiber move)

Flex Spectrum – Ability to

provision the amount of spectrum

allocated to wavelength(s) allowing

for 400G and 1T channels.

Contention-less - Same frequency

can be added/dropped from multiple

ports on same device.

WSON

Wavelength Switched Optical Network

Complete Control in Software, No Physical Intervention Required

MSTP

Embedded Optical

Intelligence

Programmability

Tech Innovation : Dynamic Optical Restoration 4. Touch-less Optical Layer


맺음말



Full/ Thin

Lean Hollow

Conclusion : Optimal Core Design

IP/MPLS Distributed

Control Plane

100GE and beyond Agile

ROADM IP & Optical Integration and

Lambda Level Bypass

Leading Performance

Investment Protection

IP + Optical Integration

nLight Technology

Expand Spectrum of

Services

Touch-less Optical

Layer



• Hitless Multi-Chassis Expansion

• 400G-Ready System

• IPoDWDM and Optical Integration

Scalability

Programmability

Agility

• Cisco ONE and nLight Technology

• Fast, Automated Service Delivery

• Provision in Minutes, not Months

• All Services from a Single Architecture

• TCO Savings

Conclusion : Cisco Elastic Core


Thank you.

next generation ip core evolution and design · 2014. 4. 25. · 1. converged multi-service core 2....

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