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메트로 이더넷 기반의 이머징 서비스
Emerging Services based-on Metro Ethernet
July 15, 2002 | By Netmanias (tech@netmanias.com)
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Transcript
Emerging Services based-on Metro Optical Ethernet
06/26/2002

Presentation for 한국이더넷포럼

Jangwoo SonNetmanias.ComE-mail) son@netmanais.com
PCS) 016-460-5747
URL) https://www.netmanias.com


Contents
.Network Segmentation
.Emerging Service
.Enterprise: Metro Optical Ethernet Service
.Residential: Video over IP Service
.Metro Ethernet Service
.Internet Access Service
.BoD Service
.Tiered Service
.IP VPN Service
.Video over IP service
.Ethernet
.VDSL
.Summary


Emerging Service based-on Metro Ethernet

Core Router

Long-haul DWDM
Edge Router
Optical Ethernet (EoDF)
NG-SONET(EOS)
RPR(EORPR)

Metro DWDM(EODL)

SONET

ATM

SER

Access
MetroDistribution  Core
BB

CP

Edge


Core

Optical Ethernet (EoDF)

RPR(EORPR)
NG-SONET(EOS)
xDSL
Cable Modem
E-PON

SER (MPLS, IPsec)

Service Layer
-Edge: Micro-flows, Subscriber aggregation & management, Service creation
-Core: Macro-flows, Fast forwarding

Enterprise
(Large, SME)
(Single, MTU)

Residential

Enterprise Networking
MDU and Home Networking
TDM/SONET

ATM

xDSL

Cable Modem

Optical Ethernet

ATM
E-PON
CPE
AN (MTU)
EN

CN

.Enterprise Market
Metro Optical Ethernet Service
0) 게임방; Internet, BoD
1) Enterprise;
-Internet access service
-VPN service
-BoD service
-QoS service

.Consumer Market
Service Bundling = {Video+ Internet} over Ethernet or DSL

Network Segmentation
Emerging Service
Metro Ethernet Service
영동국사
목동국사
신촌국사
구로국사
GbE Ring
Ethernet over DFEthernet over RPREthernet over SONETEthernet over DWDMPOS
신사국사
Long-haul
DWDM
backbone
Internet
혜화국사
MTU

Ethernet over DFEthernet over RPREthernet over SONETEthernet over DWDMPOS

GbE Ring
Ethernet over DF
Ethernet over RPR
Ethernet over SONET
Ethernet over DWDM
POS
MTU
ISP
ISP

ASP/DBSP/CSP,
Internet
Broadcasting
Center,
Game portal
BLEC

Retail service provider

MTU-CO
IntellispaceUrban Media
Carrier/Wireless SP
IDC
1GbE
Internet access
LAN-to-LAN Interconnection
IDC VLL
Wholesale Service
To Other SP
Retail service (to Enterprise)
-1M,2,3…,10M,…,100M,…1000Mbps

.가입자는Router와DSU/CSU가필요없이Native Ethernet Interface를통해서메트로에액세스
.Circuit 기반이아닌Packet 기반서비스(Statistical Multiplexing)
.서비스는크게세가지: Internet Access, LAN-to-LAN Interconnection, Metro Transport (Wholesale)

VPN Service

Metro Distribution Ethernet(L2/L3)
Internet
WAN
국사(수용국)
코넷주노드
Metro Core
POS (L3)
MTU
IP Routing Network
Remote Access
(IPsec Client)
PC
Site-to-site VPN
(BW on Demand)
Internet access(BW on Demand)
기존IP Routing Network (Metro/WAN)을가지고있는사업자, 즉MPLS가올라가있지않은경우
기존Router에새로운H/W나S/W을업데이트하지않고아무변경없이VPN 서비스를제공하길원하는경우
MAN과WAN의Router는POS기반
Metro Edge에IPsec기반의SCN (Service Creation Node)를도입
SCN는유입되어오는가입자트래픽을분석하여Internet access traffic, VPN traffic인지를판단
VPN traffic이면, IPsecservice module (Encryption)로보내고
Internet traffic이면, NAT service module (사설IP를쓰는경우)로보낸다.
SCN node는Ethernet aggregation 기능과Service Creation (IPSEC VPN, Internet access, NAT, Firewall, QoS)기능을수행한다.
MAN
WAN
Anywhere
Video over IP Service

building-04
MTU-CO
building-04
Cyber Apartment

GbE-R
MDU


optical-fiber
MDU






ES

ES


GbE-R

optical-fiber
optical-fiber
VoD/NVoD
servers


L3


optical-fiber
optical-fiber

GbE
RPR (OC48) Ring
CPE

100BaseTX

GbE
VOD Server
NAS
VOD Server
VOD Server
Video 인증/
Control/EPG
Servers
iTV manager


Broadcast HE


VoD HE

MTU-CO
GbE-R
building-04
Receivers/Demods

MPEG2Encoders
IP Encaps.(Video to IP)
Internet

Internet Access Network
(Ethernet, ATM, POS)
PP/CP
VOD Server
Terrestrial Video TN
live
TV middlewareServer
NAS

VOD Server

Access

MDU

MDU
CPE

Ethernet over VDSL
MTU-CO
VDSL
DSLAM

GbE

building-04
POP
router-core
Video Transport Network (GbE, ATM, RPR)
Broadcast TV traffic
Internet traffic
VoD traffic
MDU OE-TP service
MDU VDSL-TP service
Metro Ethernet Service

영동국사
목동국사
신촌국사
구로국사

GbE Ring
Ethernet over DF
Ethernet over RPR
Ethernet over SONET
Ethernet over DWDM
POS
신사국사

Long-haul DWDM backbone
Internet
혜화국사

MTU
Ethernet over DF
Ethernet over RPR
Ethernet over SONET
Ethernet over DWDM
POS

GbE Ring

Ethernet over DF
Ethernet over RPR
Ethernet over SONET
Ethernet over DWDM
POS

MTU

ISP

ISP


ASP/DBSP/CSP,
Internet
Broadcasting
Center,
Game portal


BLEC
Retail
service provider


MTU-CO
Intellispace
Urban Media


Carrier/
Wireless SP

Internet access

LAN-to-LAN Interconnection

IDC VLL

Wholesale ServiceTo Other SP
Retail service (to Enterprise)
-1M,2,3…,10M,…,100M,…1000Mbps

.가입자는Router와DSU/CSU가필요없이Native Ethernet Interface를통해서메트로에액세스
.Circuit 기반이아닌Packet 기반서비스(Statistical Multiplexing)
.서비스는크게세가지: Internet Access, LAN-to-LAN Interconnection, Metro Transport (Wholesale)

북미Ethernet Service 현황(2002.3)

Category
SP
IA
LL
MT
Network Architecture
BW and Price
Equipment

ELEC
Telseon
.
Ethernet over DF, DWDM
주로IDC와Carrier POP간의GbE 회선서비스에집중
1Mbps,2,3,...,19,20,30,40,...100,150,200, 250,..., 1Gbps
{$5,540/150Mbps + $800/2 Router port}/mon
Riverstone
Cogent
.
Retail
Ethernet SW + EoS over DWDM
$1,000/100Mbps/Mon.
$10,000/1Gbps/Mon.
Cisco ONS15454, 2948G-L3
Yipes
.
.M,W
주로LL에집중, Retail
1M~1Gbps, 1Mbps increment
Extreme, Juniper
Chapter 11
Intellispace
.
MTU
Riverstone
FiberCity

Emerging Metro & Regional Carriers
EPIK
.M,W
Ethernet Wholesale (MAN, WAN)
SE OED 을이용ptp Ethernet circuit
Redback SE OED
Looking Glass
OnFiber
.
.
Sphera

Full-Service CLEC
Time Warner Telecom
.M,W
2,000 lit building in 44 metros
XO
.M,W
EoS (ONS 15454) + DWDM (ONI 1500)
200+ customers in 63 metros
10Mbps: $700 per port, 100Mbps: $2,500 per port
1Gbps: $14,000 per port
Cisco ONS15454, ONI1500
Group Telecom
.
.
EoDF에서EoS (ONS15454)로천이중
2,000 lit building in Canada
Cisco ONS15454
Electric Lightwave

Traditional IXC
AT&T
.
.
.
EoS
Cisco ONS15454
Sprint
N/A
WorldCom
.
.M,W
.
May 2002
EoDF, RPR
Internet: 1,2,3,4,5,10,20,30,40,50,100,200,300,400,500,1000M
Ethernet Private Line: 50M, 150M, 622M
Enterprise Ethernet Metro: 10M, 100M
Nortel BPS2000, PP8600, OPE3500 (RPR)

Emerging IXC
Broadwing
.M
Phase1: EoS, Phase2: EoDWDM
Level3
GlobalCrossing
Williams
Chapter 11

ILEC
BellSouth
.M
April 2002 : Metro GbE 서비스출시
Point-to-Point and Switched Gigabit Ethernet Service
10Mbps: $760/10Mbps/port(location)/month
100Mbps: $1,520/100Mbps/port(loc.)/month
BellCanada
.M
RPR
Nortel\'s 3500 (OPE/RPR)
Qwest
한다고하는문서도있네….
Verizon
SBC
.
GigaMAN service: Layer2 ptp or ptmp GbE circuit







Asia-Pacific carriers offering metro Ethernet services (06/2002)

Service Provider
Country
Target customer
Network deployment
Vendor

Telstra
Australia
Businesses
More than 100 customers in 1500 locations in 6 metro areas
Cisco

Uecomm
Australia
Businesses
Four metro areas: Brisbane, Melbourne, Perth, Sydney
Enterasys

China Unicom
China
Businesses and data centers
Transparent LAN services in 8 cities in Guangdong province
Nortel

China Telecom
China
Residences and businesses
Ethernet service in 4 provinces: Guangdong, Shandong, Hunan, and Jilin
Extreme

China NetCom
China
Residences and businesses
Ethernet service in 32 cities in northern China
Luminous and Extreme

Hutchinson GlobalCrossing
Hong Kong
Residences and businesses
Ethernet services for 1 million customers in HongKong (projected)
Riverstone

PCCW
Hong Kong
Businesses
Ethernet trials (potentially 100 buildings)
(undisclosed)

BSES Telecom
India
Residences
Ethernet to homes with 80,000 customers by end of 2002 (projected)
Juniper

NTT
Japan
Businesses
Three Metro Ethernet services from NTT East; “Urban Ether” service from NTT West in limited metro markets
Extreme, Foundry, Appian

KDDI
Japan
Their own optical transport (mobile, residences, and businesses)
First deployment of RPR in Japan
Nortel

Japan Telecom
Japan
Businesses
Metro Ethernet in its ODN initiative throughout Japan
Riverstone

C&W IDC
Japan
Businesses
Layer-2 VLAN services with RPR
Nortel, Foundry

Crosswave Communication
Japan
Businesses
Metro Ethernet to business customers in Tokyo
Ciena and Fujitsu

DACOM
Korea
Residences and businesses
Ethernet to MDU/MTU building in Seoul (with availability to other regions in 2002)
Riverstone

PowerComm
Korea
Wholesale
Wholesale Ethernet service in Seoul (starting in 2002)
Riverstone

AK Telecom
Korea
Residences and businesses
Optical Ethernet to backhaul wireless data services
Extreme

Korea Telecom
Korea
Residences
Project Ntopia: Ethernet to 80,000 homes and businesses
Riverstone







European carriers offering metro Ethernet services (06/2002)

SP
Country
Target customer
Network deployment
Vendor

Completel
France
Businesses
13 Ethernet MAN in France, Germany and the U.K.
Internet access service와PTP and PTMP LAN-to-LAN interconnection 서비스(MAN과WAN 둘다)를제공하고있다. MAN (intraCity) 서비스는Ethernet over dark fiber(VLAN)으로제공하며WAN (inter-City) 서비스는MPLS를통해제공하고있다. 10Mbps에서1Gbps까지선택할수있으며, 여러site를가진customer는site에따라서로다른BW을할당받을수있다.
Riverstone

FastWeb
Italy
Residences and SMB
Ethernet to 50,000 customers in more than 35,000 buildings in Italy
Last-mile Ethernet access를이탈리아전역에서50,000 customer (HH, SMB)에게제공하고있으며주된서비스는Internet, VoD 그리고flat-rate VoIP서비스이다. Milan, Genoa, Rome, Naples and Bologna에서35,000(주거, 사무)개의빌딩을서비스하고있다.
Cisco Catalyst 3500/6500
Core: GSR

WIND
Italy
Residences and businesses
Limited metro Ethernet offering, mostly on a special-build situation
(113개도시에서8.4M Internet customer보유) 주metro Ethernet 서비스는L2 LAN-to-LAN interconnection. 이와더불어Metro Ethernet infra를이용하여VPN, VoIP, Internet access 서비스도제공하고있다.
Extreme, Cisco
* Luminous RPR trial중

Telia
Sweden
Service providers (Wholesale)
Ethernet service offered in Gothenburg and Lulea
Extreme (via Ericsson), Riverstone

Utfors
Sweden
Businesses
Ethernet service to 23 cities in Scandinavia
Utfors는IP기반의retail/wholesale서비스를제공하는carrier로스웨던, 노르웨이, 핀란드, 덴마크의23개도시에인프라를구축했다. Ethernet과MPLS에서비스의초점을두고있으며주된서비스는Internet access, VoIP, VPN이다. Ethernet access 서비스는2, 10, 100, 1000Mbps로제공되며현재customer당평균구매대역폭은22Mbps이다.
Extreme and Riverstone
Utfors의Metro와access 네트워크는Extreme과Riverstone의Ethernet Switch/Router로구축했으며802.1q VLAN tagging을사용한다. Core에서는Cisco의MPLS기반GSR를Traffic engineering을위해사용하고Sycamore의16000 DWDM platform을전송을위해사용하고있다.

B2
Sweden
Residences
Ethernet service to 220,000 customers in 40 cities in Sweden
B2는residential customer에게Ethernet access 서비스를제공하는사업자로40개도시220K HH에주로Gaming, Video, Internet access 등의서비스를Ethernet 네트워크를통해제공한다.
Cisco Catalyst Ethernet Switch, GSR core router

Neos
U.K.
Service Providers and businesses
Ethernet service in 30 cities throughout the U.k.
Internet access, private line, L2 VPN 서비스를제공하는pure-play Ethernet SP로MAN(intra-city/metro), WAN (inter-city/metro) 서비스를MPLS 기반으로제공한다. 현재270 customers(100 carrier and 170 enterprise)에게서비스가제공되고있으며계약건수는1000을돌파했다.
Riverstone
RS3000을MTU, Office park의access platform으로사용하고있으며metro and regional POP에는RS 8600/38000을도입했다.

Sprint International
U.K.
Global business
Ethernet trial offering to 7 of its POPs in London
Cisco의10720과12000 라우터를도입하여망을구축하고있다. 이두라우터가DPT (RPR)을지원하기때문에10720은MTU와POP간에, 12000은코어에서STM-16링(Dark fiber)상으로DPT를적용할것으로예측된다.

BT Ignite
U.K.
Businesses
Metro Ethernet LAN connectivity at 10, 100, 1000 Mbps
Undisclosed

Storm은?







Market Estimation
Internet access service Revenue via Ethernet

Metro LAN-to-LAN Interconnection Service
Revenue via Ethernet [$B]

North America (Source: RHK March 2002)

0.000.200.400.600.801.001.20200120022003200420052006YearWholesale Metro Ethernet Transport Service Revenue[$B]ELECIXC/CLECILECWholesale Metro Ethernet Transport Service
Revenue [$B]

Market Estimation

North America (Source: RHK March 2002)


2001 Worldwide Metro Ethernet equipment market share

Worldwide Metro Ethernet equipment market share
by port shipments (2001)

Worldwide Metro Ethernet equipment market shareby Revenue (2001)
.Metro Ethernet service는다양한Network architecture를통해제공되는데, 대표적인방식이Ethernet Switch/Router 와Dark fiber (EoDF 모델), NG-SONET/SDH ADM(EoS) 그리고Metro DWDM/CWDM(EoDL) 시스템을이용하는세가지로대분될수있다. 유럽과아시아에서의Metro Ethernet service는주로Ethernet Switch/Router와Dark fiber를이용하여망을구축하는EoDF 방식으로제공되고있다. 물론국부적으로는Metro DWDM 시스템을도입하여Point-to-point Ethernet circuit을제공하기도한다. 이는주로Data center와Carrier POP을연결하는데사용되고있다.
.2001년에Ethernet Switching/Routing equipment 매출은거의$500M에이르렀다. Riverstone이port shipment 분야에서는38%, 매출액분야에서는41%로1위를달리고있다.
.Source: RHK, PSG_Focus_0602.pdf, 06/2002


현재


Startup Ethernet SP: Telseon/Yipes….

Network Architecture & Service
Building-etc
MTU-CO

PSTN

Internet
Backbone
(Private)


MTU-Metro
10/100



Cat5 or fiber

cloud-small
LAN

cloud-small
LAN
cloud-small
LAN

MTU
MTU-Metro
Access (Ring)
Ethernet over VDSL

Cat1/2/3

cloud-small
LAN

cloud-small
LAN

MTU

MTU-CO
MTU-Metro
10/100


cloud-small
LAN

cloud-small
LAN

cloud-small
LAN

MTU

MTU-Metro

Ethernet over VDSL

Cat1/2/3

cloud-small
LAN
cloud-small
LAN


MTU

MTU-Metro
100M


cloud-small
LAN

cloud-small
LAN

MTU

GSR


IDC

GateWay



ASP/DBSP/CSP,
Internet
Broadcasting
Center,
Game portal


BLEC
Intellispace
Urban Media




Metro Core

Access (star)




Ethernet MAN access

Ethernet Aggregation

Ethernet VPN
Dark fiber

Rate-limiting
Packet classification
802.1p/q

802.1p/q


Retail
service provider


MTU-CO

WorldCom

.WorldCom Ethernet Services

.Metro Private Line Point to Point ***

.Metro Private Line Multi Point

.WAN Private Line Point to Point ***

.WAN Private Line Multi Point

.Metro Enterprise Ethernet Point to Point

.Metro Enterprise Ethernet Multi Point

.WAN Enterprise Ethernet Point to Point

.WAN Enterprise Ethernet Multi Point

.Internet Access Tiered ***

.Internet Access Burstable ***

.*** Defined and Deployed

.Internet access

.1,2,3,4,5,10,20,30,40,50,100,200,300,400,500,1000Mbps

WorldCom EoRPR Network

MTU-Metro
INTERNET GATEWAY ROUTER
Juniper M40

OC48TN

BPS2000-rate-limiting

-policing



OC48 RPR Ring(EoRPR)


PP8600

OC48TN
OC192

GbE

GbE

OC192

OC192

OC192

OC48 RPR Ring
(EoRPR)





OC48TN

Internet


GbE



10/100


OC48 RPR Ring
(EoRPR)





Aggregation POP
Aggregation POP with Internet POP
MTU-Metro

GbE
OPE GbE
Customer port mapped
To 802.1q VLAN Tag


Customer A Internet Router


Gigabit Trunk to
Gateway Router
From OC-48 OPE




Ethernet

802.1q VLAN tag
OPE

Mapped to RPR



Aggregation POP

Aggregation POP

OC48TN

OPE

OC48TN
OC48TN


GbE
KORNET-Metro
MTU-Metro

MTU-Metro
MTU-Metro

수용국
주노드국

DSLAM
RAS
ADSL

BD

동선

FLC

STM-4 (2.5G)


7500
ADM

DSC(D/MUX)

FLC

DSC(D/MUX)

ADM


CSU/DSU


DS3/OC3

OC3
DS3/OC3

OC3/12

100M

AN



EN

CN








G
RS38K
RS38K

MTU










RS38K

RS38K

MTU
GSR
SDH N.2.5G
GSR
Metro POP with Internet POP

IX
Internet

E1

DWDM

Long-haul
DWDM
backbone


POS
OC12/48

POS
OC12/48

POS
OC12/48

POS
OC12/48









MTU-Metro






CO





Ethernet Mesh/Star

Ethernet Ring

RPR Ring

SDH RONG/PTP

KORNET-Metro

MTU-Metro







MTU-Metro
MTU-Metro
MTU-Metro


Long-haul
DWDM
backbone


MetroDistribution
Metro
Core

Metro
Access

Customer













POS
OC48






AN








MTU


CO

Metro POP

Metro POP
With Internet POP

MTU-Metro








POS
OC48

GbE









Ethernet Mesh/Star

Ethernet Ring

RPR Ring

SDH RONG/PTP







Metro POP
CO











Ethernet Mesh/Star

Ethernet Ring

RPR Ring

SDH RONG/PTP

DWDM









IX


Internet








AN








MTU



















Metro Edge






Function of Edge

.Packet classification

.User

.Application flows


.Bi-directional Rate-Limiting/Shaping

.CoS marking (802.1q, TOS, Diff-Serv)

.Network-based VPN









QoS

BOD

VPN

Service Creation Edge Router
(IP Service Switch)






Existing
IP Core Network




(1)Internet Access Service: BOD Service

(2)Internet Access Service: BOD + Tiered Service

(3)Internet Access Service: BOD + Application-Aware Service

(4)Network-Based IP VPN Service: BOD

(5)Network-Based IP VPN Service: BOD + Tiered Service

(6)Network-Based IP VPN Service: BOD + Application-Aware Service

(7)Integrated Service: Internet Access(1,2,3) and IP VPN(4,5,6)





Service Creation Edge






SCER Concept

.Optical Ethernet: BW 판매시장에진입

.1000,000won/10Mbps/month

.500,000won/5Mbps/month


.Next: Service 판매

.Internet Access Service

.QoS service

.VPN service

.Firewall service


.Service Creation: Intelligent Edge

.Classification(L2/L3/L4)

.Rate-limiting/shaping(Service + L2/L3/L4)

.Application-level QoS (802.1p, Diff-Serv, MPLS)

.VPN (VLAN, IPsec, MPLS)

.Firewall

.Service/Policy Provisioning

.SLA


.VPN Approach

.Legacy ISP: SCN(Ethernet aggregation+QOS+IPsec VPN) + IP Routed Core

.Startup: SCN(Ethernet aggregation + QOS+ MPLS VPN) + MPLS Core

.MSP: SCN(Ethernet aggregation + QOS+ VLAN VPN) + VLAN Core




Bill
Service: Internet access
BW: 5Mbps
Price: 500,000 won/month

Bill
Service1) Internet access
-BW: 5Mbps
-QoS: Best-effort
Price: 500,000 won/month
Service 2) VPN stream 1
-BW: 1Mbps
-QoS: Gold
-Encryption: IPsec
Price: 200,000 won/month
Service 3) VPN stream 2
-BW: 10Mbps
-QoS: Best-effort
-Encryption: IPsec
Price: 300,000 won/month
Total:                             1,000,000 won/month


SCER
At Edge

Before
After






KT

Where is The Edge ?






MTU-Metro
MTU-Metro






수용국

G

주노드국







DSLAM

RAS













ADSL




BD

동선

FLC

STM-4(2.5G)


7500

ADM

DSC
(D/MUX)

FLC

DSC
(D/MUX)

ADM






CSU/DSU



DS3/
OC3

OC3
DS3/
OC3

OC3/12

100M















AN



EN

CN








G
Access Network: TDM circuit (Dedicated BW, Guaranteed QoS)



Access Network: Packet Network (Shared access network)

Edge of
TDM access Network




Edge of
Metro Ethernet Access Network

GSR

RS38K

RS38K

MTU









EdgeMicro flows to Macro flowsCustomer AggregationService CreationBefore Packet NetworkFlow ClassificationCustomer SeparationBW guarantee QoS/CoS MarkingNetwork-Based VPN






Internet access service

L2

AN

building-04



10/100

Customer
Customer
Customer
Customer

MTU




LAN


KORNET





Global
Internet


IX


IDC/ASP
DBSP/CSP



Game
Portal


Video
Headend


PSTN






Enterprise

building-04



D:\\My Documents\\rs_32000.gif
Game방

Bandwidth on demand1) Rate-limiting/Shaping-Enterprise 규모와인터넷사용량에따른자유로운BW 선택-1kbps 단위로할당가능(오차2%이내)2) Dynamic/Real-time Provisioning응용별대역폭및QoS 정책

-TCP (ftp): End-to-end flow control, Non-real-time, Packet loss에민감(재전송): Rate shaping 기능이필수

-UDP (VoIP, Game): Real-time, game의경우Loss는치명적: High delay priority를부여해야



building-04

Enterprise



SCER

SCER







Internet access service (1): BOD

L2

AN

building-04

10/100


Customer
Customer

MTU




KORNET





GlobalInternet

IX


IDC/ASP
DBSP/CSP



GamePortal

Video
Headend


PSTN







Enterprise

building-04

Game방

Bandwidth on demand1) Rate-limiting/Shaping (량)-Enterprise 규모와인터넷사용량에따른자유로운BW 선택-1Kbps 단위로할당가능(오차2%이내)2) Dynamic/Real-time BW Provisioning (시간)



building-04

Enterprise



5M

3M

SCER

SCER




5Mbps

1 Gbps Uplink


Customer A
100Mbps Customer link


Customer B

3Mbps
100Mbps Customer A link







Customer A

Customer B

Rate-Shaping

Rate-Shaping
Rate-Shaping





계약한대역폭5Mbps

Traffic Arrival Rate

Traffic Service Rate

Shaping (Delayed and Confirmed), not dropping!



















5Mbps
Arrival

Queued

NWC service(shaping)

Video
Headend


PSTN




5Mbps

1 Gbps Uplink


Customer A

100Mbps Customer link


Customer B

3Mbps

100Mbps Customer A link





Rate-Shaping

Rate-Shaping

A

A
A

A

A
B

B

B

A

A

A

A

B

B

B







Internet access service (2): BOD+TieredCoS

L2

AN
building-04

10/100


Customer
Customer

MTU




KORNET





Global
Internet


IX


IDC/ASP
DBSP/CSP



Game
Portal


Video
Headend


PSTN







Enterprise

building-04
Game방

building-04

Enterprise



5M+Gold

3M+BE

10M+Gold

15M+BE
SCER

SCER


Diff-Serv enabled



More guaranteed flow (Fast and Low loss)

Non-guaranteed flow (Slow and Medium loss)




5Mbps: High-priority (Gold)

1 Gbps Uplink


Customer A

100Mbps Customer A link


Customer B

Customer A

Customer B

3Mbps: Low-priority (Silver)

100Mbps Customer A link












Internet access service (3): Application flow 별BOD


L2

AN

building-04

10/100


Customer
Customer

MTU




KORNET





Global
Internet


IX


IDC/ASP
DBSP/CSP



Game
Portal


Video
Headend


PSTN







Enterprise

building-04



D:\\My Documents\\rs_32000.gif
Game방

building-04

Enterprise



5/1M

SCER

SCER





Diff-Serv enabled




1Mbps (VoIP/Video): High-priority

5Mbps (Web, ftp, E-mail): Low-priority

1 Gbps Uplink


Customer A

100Mbps Customer link



VoIP

ftp

VoIP

Video

ftp

ftp

ftp

Mail

ftp

Mail

ftp

ftp

VoIP

Video

VoIP








Network-based IP VPN service

.Site-to-site/Remote access service

.MAN/WAN/Global VPN service

.Site-to-site VPN: Any-to-any connectivity

.Service Creation: Edge

.No Change in existing IP core network

.One access line for Both Internet access and Private Network



building-04
10/100

Customer

201.22.3/24

BO

building-04



203.3.3/24

HQ
Intranet
server

IP-PBX


building-04
10/100

Customer

192.172.3/24

BO

Existing
IP Core Network




Service Creation Edge







Network-based IP VPN service
L2

AN

building-04



10/100


Customer
Customer
Customer
Customer
building-04


building-04




MTU

SEU

cloud-big
MTU

Internet

Private IP BB

L2

AN

building-04
10/100





Customer
Customer
Customer
Customer
MTU




MAN IPsec VPN service
(Encrypted)

WAN IPsec VPN service
(Encrypted)








building-04
building-04


SEU

KORNET(Seoul)


L2

AN

building-04
10/100





Customer
Customer
Customer
Customer
MTU






building-04
building-04


SEU


Metro Edge

KORNET
Backbone

KORNET
(Busan)



SCER

SCER






IP VPN




Metro Distribution
Ethernet
(L2/L3)








MTU


















Internet

WAN



국사
(수용국)

코넷주노드








Metro Core
POS (L3)

















MTU



















IP Routing Network


Remote Access
(IPsec Client)

PC
Site-to-site VPN
(BW on Demand)

Internet access
(BW on Demand)

기존IP Routing Network (Metro/WAN)을가지고있는사업자, 즉MPLS가올라가있지않은경우

기존Router에새로운H/W나S/W을업데이트하지않고아무변경없이VPN 서비스를제공하길원하는경우

MAN과WAN의Router는POS기반

Metro Edge에IPsec 기반의SCN (Service Creation Node)를도입

SCN는유입되어오는가입자트래픽을분석하여Internet access traffic, VPN traffic인지를판단

VPN traffic이면, IPsec service module (Encryption)로보내고

Internet traffic이면, NAT service module (사설IP를쓰는경우)로보낸다.

SCN node는Ethernet aggregation 기능과Service Creation (IPSEC VPN, Internet access, NAT, Firewall, QoS)기능을수행한다.



MAN

WAN

Anywhere

SCER

SCER





IPSS market forecast (In-Stat, May 2002)

.In-Stat에서집계한2001년Worldwide IPSS 매출은$158 M 정도이다. CPE VPN/Firewall 장비(CP내의모든형태의H/W, S/W)의매출액은2001년에$3.2 B에이르렀으며이와비교하면IPSS의매출은상대적으로아주작다.

.2002년에는전년대비28% 증가하여$202M에이를것으로예측하고있다. Major IPSS 벤더들의매출은증가할것이고현재Field test중이Startup 벤더들도매출을기록하는첫해가될것으로보읶다.

.2002년이지난면본격적으로Network-based VPN service가확산될것이다. VPN service 비용을상당히줄읷수있기때문에, Customer들도CPE-based VPN을버리고IP VPN service를outsourcing하기시작할것이다.

.이러한트렌드를반영하여Edge Router 벤더들이VPN 기능을edge router에추가하고있으나, Scalability, 서비스의다양성그리고Performance 등에서우수한IPSS가Network-based VPN 장비매출액의대부분을점유할것이다.




Forecast of IP Service Switch Worldwide Sales: 2002 .2006
(US$ M, Manufacturer Sales)






Qwest

.Qwest는IPSS를도입하여Network기반의VPN 서비스를제공하고있는선도적읶사업자이다. 1999년에미국에서는최초로Network-based VPN service를제공하기시작했다. 현재(May 2002)는미국과유럽에서Network-based VPN service와더불어다양한IP service를제공하고있으며2002 Q2에는아시아로이러한서비스를확장해나갈계획을가지고있다.

.Qwest가network-based service에집중하는것은이기술이구축비용(Capex)과운영비용(Opex) 측면에서CPE-based 서비스에비해상당한강점을가지고있다는것을정확하게읶지하고있기때문이다.

.장비로는Nortel의Shasta와Cosine의IPSX를사용하고있으며현재까지는Nortel Shasta가약간더많이들어가있다. Qwest로서는당연히Multi-vendor approach를취하고있으며상시두벤더제품의성능, 안정성, 표준화수용와호홖성을위한노력등을감시하고있다. 만약어느한벤더가새로운탁월한기능을추가한다면그벤더로무게가더실릴것이다. Qwest는Nortel과Cosine 제품의IPsec 호홖성을추구하고있지만현재로서는, 동읷Customer의사이트들은한벤더의제품으로서비스하고있다.

.현재Qwest는IPSS를이용해4가지의Network-based services (IPSEC VPN, Firewall, NAT and Routing for Internet Access)를제공하고있다. 여기서, Network-based VPN service (IPSEC)는Site-to-site만제공되고있으며Remote access service는제공되지않고있다.

.Customer site에는premise에Router가있으며Router하나의회선으로VPN traffic과Internet traffic을IPSS의한port로전달한다. IPSS는VPN traffic의경우IPSec tunnel상으로암호화하여전달하고Internet traffic에대해서는단순히edge router로서동작하여nexthop으로전달한다.

.Qwest는현재제공되고있는4 가지서비스이외에새로운Network-based service들을출시할예정이다. 대표적읶것이Intrusion detection과Virus protection 서비스이다. 또한현재로서는VPN service가IPSec기반읶데, 또하나의강력한VPN 구현도구읶MPLS service를어떻게IPSS 망상에서설계할것읶가를고민하고있다.

.Qwest는Network-based VPN service와더불어CPE-based managed IPSec VPN service도함께제공하고있다. 통상적으로10개사이트가넘는회사들은통신비용절감을위해Network-based VPN service를선호한다.

.Qwest는이서비스수익이구축비용의약30%정도가유지되도록서비스요금을책정하고있다.

.CPE-based VPN 서비스만을고집하는Customer들도있다. 예를들어정부기관들처럼정보누출에상당히민감한Customer들은Network-based VPN service에서는Local loop encrypted를원한다. 이경우에는CPE-based managed VPN밖에는해답이없다.

.Qwest는아시아로서비스를확장하고또한기존의미국과유럽에서전개되고있는서비스의질을향상시키기위해새로운IPSS를도입하려하고있다. Qwest가IPSS 벤더를선택할때의Criteria는다음과같다: Service available, Scalability, Reliability, Manageability, Cost, Support after the sale

.Qwest는또한Service management system과Web-based Customer provisioning tool을찾고있다.

.Qwest는판매후에Qwest 운영팀과함께서비스개시까지기술지원해줄능력이있는벤더가높은우선Priority를주고있다.









Network-based IP VPN service (1): Coverage

L2

AN
building-04



10/100


Customer
Customer
Customer
Customer

MTU

cloud-big
MTU

Internet

Private IP BB

MAN IPsec VPN service
(Site-to-site VPN)







building-04

KORNET(Seoul)


L2

AN

building-04
10/100




Customer
Customer
Customer
Customer
MTU





building-04
building-04


SEU




KORNET
Backbone

KORNET
(Busan)


201.22.3/24


203.3.3/24
BO

HQ


Intranet
server

IP-PBX




WAN IPsec VPN service(Site-to-site VPN)
Encrypted IPsec Tunnel

Remote access VPN







3Mbps

5Mbps

10 Mbps
SCER

SCER

SCER







Network-based IP VPN service (2): Tiered

L2

AN

building-04



10/100


Customer
Customer
Customer
Customer

MTU
cloud-big
MTU

Internet
Private IP BB


MAN IPsec VPN service
KORNET(Seoul)


L2

AN

building-04
10/100





Customer
Customer
Customer
Customer
MTU





building-04
building-04


SEU

KORNET
Backbone

KORNET
(Busan)


201.22.3/24


203.3.3/24

BO

HQ

Intranet
server

IP-PBX





WAN IPsec VPN service

Encrypted IPsec Tunnel

Remote access VPN







3Mbps

5Mbps

10 Mbps

QoS: Gold

SCER

SCER

SCER







Network-based IP VPN service (3): application-aware
L2

AN
building-04



10/100


Customer
Customer
Customer
Customer

MTU

cloud-big
MTU
Internet

Private IP BB


MAN IPsec VPN service
(Encrypted)

building-04

KORNET
(Seoul)



L2

AN

building-04
10/100





Customer
Customer
Customer
Customer
MTU






building-04
building-04


SEU

KORNET
Backbone

KORNET(Busan)
VPN flow 1: BW=1Mbps, QoS=Gold
Application: VoIP/Videoconferencing over VPN

VPN flow 2: BW=5Mbps, QoS=Best EffortApplication: Intranet server access, FTP

201.22.3/24


203.3.3/24

BO
HQ
Intranet
server

IP-PBX

SCER

SCER

SCER









Edge Node Architecture

ACL/FW/MFPC
Encryption
/Tunnel

Queuemgt
Encryption
/Tunnel

Queue
mgt

Queuemgt
Queue
mgt









Flow
queue

Flow
queue

Flow
queue

Flow
queue












1. Customer identify2. Filtering {srcIP, dstIP,srcPort, dstPort}: deny or permit-MAC Filtering

-ICMP Filtering3. Traffic Classification {L3/L4}: VPN/Internet, flow 인식4. Traffic Metering5. Marking (Diff-Serv)6. IF VPN traffic

-SPD (Security Policy Database)

-SAD (Security Association Database)








f1

f2

f3

f4

ACL/FW/MFPC
Encryption
/Tunnel

RT lookup
Queue
mgt

Encryption
/Tunnel

RT lookup
Queue
mgt

Queue
mgt

Queue
mgt









Flow
queue

Flow
queue

Flowqueue
Flow
queue









Traffic
Metering
Marking

Traffic
Metering
Marking

Traffic
Metering
Marking



f5
f6

f7
f8








Rate_f1

Rate_f3
Rate_f5

Rate_f7

Rate_f2

Rate_f4

Rate_f6

Rate_f8
Static Priority

High Priority

Low Priority

GbE uplink

100M subscriber link
100M subscriber link



Scheduler
RT lookup

RT lookup

Traffic MeteringMarking
Traffic
Metering
Marking

Traffic
Metering
Marking

Traffic
Metering
Marking




















RT lookup





RT lookup

ACL/FW/MFPC

ACL/FW
/MFPC




ACL/FW
/MFPC

ACL/FW
/MFPC

Traffic
Metering
Marking






Bundled Service

.Bundled service (Triple play service)란:

.Bundled service는이종사업자굮간의경쟁에서초래된서비스로, Telco, MSO, DBS SP는동종사업자굮간의가입자경쟁이아니라동종및이종사업자굮간의무한경쟁체제로진입하게됨.









DBS SP
.DBS broadcast video service

.All-digital broadcast TVservice/highest picture quality

.200+ digital channels/several HDTV channels

.Content includes local programming/no sports blackouts

.Extensive NVOD movie offerings









MSO


.Cable passes 97% of the 105 M homes in US

.Take-rate for basic broadcast TV is 68%

.MSOs have been aggressively consolidating

.Comcast/AT&T BB @ 22 M subscribers

.AOL/Time-Warner @ 13 M subscribers

.Charter @ 7 M subscribers

.Cox @ 6 M subscribers


.MSOs spent $50 B upgrading networks since 1996

.Increases network bandwidth to 750 MHz

.Adds 200+ digital channels to 80 channel analog offering

.Drives fiber to down to 500 homes(as few as 150 homes)

.Enables two-way capability for Internet access & telephony









MSO

.Internet Access: Cable Modem leads ADSL 70% to 30%

.Telephony: Now providing voice to 1.5% of homes

.CableLabs Standards: Helping enable data & voice

.Video/Data/Voice triple play: “Full-Service Bundle”

.Minimizes broadcast video churn (~30%/year) => huge savings for operator

.Also, minimizes billing & operations expense






Example Full-Service Bundle
.40% of households “somewhat/very interested”in FS bundles

.MSOs expect ~$100/m from bundled customer

.May ultimately trigger permanentdisconnect of Telco

$80-150

$30-60






Per
Service

Per
Category

Per Customer
$25-35$12$10-$20$8-$10$5
Premium Subscription ChannelsInternet To TVPersonal Video RecorderVideo On Demand
$25-50
$10-30
$20-30

$25-50
$38-85



Anticipated Monthly Revenue
Basic Broadcast TV

High Speed Internet Access
Local Telephony
Long Distance Telephony

Service










Telco’s missing link : Video Service



PC

TV




DSL modem
Home Gateway(STB, PVR, VoIP)
Home Gateway(STB, PVR, VoIP)

전화선

Ethernet







building-04
MDU Video Service를위한Network Architecture

MTU-CO
building-04
Cyber Apartment
GbE-R

MDU

optical-fiber
MDU






ES

ES


GbE-R

optical-fiber
optical-fiber
VoD/NVoD
servers


L3


optical-fiber
optical-fiber

GbE
RPR (OC48) Ring
CPE
100BaseTX

GbE
VOD Server
NAS
VOD Server
VOD Server
Video 인증/
Control/EPG
Servers
iTV manager


Broadcast HE


VoD HE

MTU-CO
GbE-R



cloud-big
building-04














Receivers/Demods
MPEG2
Encoders












Internet

Internet Access
Network
(Ethernet, ATM,
POS)




cloud-big
PP/CP




VOD Server
cloud-big

Terrestrial
Video TN

live



TV middlewareServer

NAS



VOD Server











Access
Apartment

MDU
MDU
CPE
Ethernet over VDSL

MTU-CO
VDSL
DSLAM

GbE

building-04
POP

router-core
















VideoTransportNetwork(GbE, ATM, RPR)



















Broadcast TV traffic

Internet traffic

VoD traffic





















Where is the Video Delivery$ Today? Broadcast TV vsVoice, HS Internet access & other video
















































$31
$9
$77

$2.3
$1.2

$1

$10

$2

$0
$10

$20

$30

$40

$50

$60

$70
$80
Cable -Subscription Broadcast TV
Satellite -Subscription Broadcast TV

RBOC -Residential Voice
Cable HS Internet Access

Telco HS Internet Access

Cable & Satellite PPV

VCR/DVD Rentals

Cable VoD (projected in four years)
Annual Revenues ($B/year)

Year-end 2001

.Total Broadcast TV Revenue = ~$40 B

.Average Broadcast TV Spending per Household = ~$32/m








VoD over IP service revenue forecast (2002-2006)
.VOD over IP over DSL or Cable modem service에대한예측치이며, CATV VoD는포함되지않았다.

.2006년이되면, VoD over IP total participants는17.3M에이르며Service revenue는$1.89B에이를것으로예측(이숫자에는MDU/Home, DSL/Cable modem이모두포함된수이다.)

.현재VoD over IP 서비스의Contents는Adult물이다. 2002년에Worldwide consumer VoD over IP service revenue가$460M에이를것으로예측하고있는데, 이중에98%가Adult contents service읷것으로추정하고있다.

.다양한VoD contents가개발되면서앞으로는“Family-oriented” VoD Content Service 가증가할것이며2004년이되면“Family-oriented” VoD Content Service에대한SVoD 가입자수와PPV participant의수가Adult contents service의user수보다증가할것이며, 2006년이되면매출액측면에서도Adult service를앞지를것으로내다보고있다.

.2006년이되면Worldwide consumer의40%가High-speed Internet access connection을갖게될것이며이들이바로VoD over IP service의잠재고객층이된다.

.Source: Consumer Oriented Video-On-Demand Via IP Networks, In-Stat, May 2002

Geographic Summary Of Subscribers -VOD Over IP Networks(thousands of total participants using VOD-over-IP Networks)

Geographic Summary Of Dollar Value -VOD Over IP Networks
(Annual dollar value $ millions (US) geographic summary of dollar
value of VOD-over-IP Networks)








Network Element Requirements
Reference
Lucent: IP2000
Nortel
Alcatel
Invia

Segment
Requirement
관련장비

B-TV Headend
.CP/PP로부터들어오는방송신호를MPEG2/4 encoding하고이를IP에태우기위해IP encapsulation하는기능이필요.

.B-TV packet을TN으로유입시키는지점에서QoS marking (Diff-serv, 802.1p)이필수적이다.



VoD Headend
.VoD server의stream당cost가$이내로제공되어야한다.

.VoD packet을TN이나Access Network으로유입시키는지점에서QoS marking (Diff-serv, 802.1p)이필수적이다.

.VCR-like VoD control이제공되어야.

.인증및가입자관리서버: VoD 서비스가입자인증, NVoD의경우채널인증



Transport Network
.Key: Big BW, Cost, QoS, Multicasting, Resiliency

.VoD 서비스의경우Local CO에VoD server를두면Metro distribution/core에대역폭요구를상당히경감시켜줄수있다. 그러나, 이경우모든Local CO에많은수의서버가필요하므로최근Title 50개정도는Local CO에두고나머지는Centralized VoD HE에두는것이바람직하다. 이경우VoD 트래픽도메트로대역폭을사용한다.

.B-TV 서비스의경우, 이는Broadcast 트래픽이므로TN내에서멀티캐스팅이지원되어야한다. 멀티캐스팅이지원되고100채널(@4.2Mbps)을서비스하는경우, 420Mbps의메트로대역폭이상시사용된다.

.VTN와IAN의통합또는분리: 통합시에는인터넷트래픽에대해Video 트래픽을분리하여차별화된서비스(CoS)를반드시제공해야한다.

.Video session에대한BW보장은ftp처럼공정한공유(fair-share)가미덕이아니며망의혼잡상태와상관없이그session의BW를절대보장해주는것이요구된다. 이는Transport network상에서Video 트래픽을위한적절한BW-provisioning과각장비에서의정교한scheduling기능을통해이루어낼수있다. [이요구사항은TN, AN, MDU에공통으로적용된다.]



Access Network
.CO와MDU간은Fiber기반, GbE, RPR 등이적합

.Access Node: MDU-TP 서비스를위해서MDU uplink는최소한1 Gbps이상의용량을가져야한다. B-TV(100CH@4.2Mbps)의경우420Mbps, VoD(50CH@4.2Mbps)의경우210Mbps, NVoD (5CH@4.2Mbps)의경우21Mbps의대역폭이요구되며이들의합은651Mbps이다. 여기에인터넷액세스를위한대역폭도필요하므로1Gbps 이상의Uplink가필요하다. 또한비디오와인터넷트래픽이공존하므로Video 트래픽에Strict delay-priority를제공해주는CoS가필수적이다.

.Resiliency를위해2개의GbE uplink port를두거나RPR을적용하는것이바람직하다.



MDU: Ethernet Network
BW
QoS
Security
IP 주소할당
Fast Channel switching (IP multicasting (IGMP))

MDU: DSL Network
BW
QoS
Security
IP 주소할당
Fast Channel switching (IP multicasting (IGMP))

CPE/STB
.VCR-like VoD control

.Fast channel switching

.EPG/iTV

.One STB, two CH or one STB, one CH



Management/
Control
.가입자인증, 채널인증, 과금

.End-to-end visibility and control











cloud-big
Assumption discussion


building-04
MTU-CO
building-04
Cyber Apartment(MDU)

GbE-R

MDU




optical-fiber
MDU






ES
ES


GbE-R

optical-fiber
optical-fiber
VoD/NVoDservers

L3

optical-fiber
optical-fiber

GbE
RPR (OC48) Ring
CPE

100BaseTX
GbE

VOD Server
NAS
VOD Server
VOD Server

Broadcast HE

VoD HE

building-04














Receivers/Demods

MPEG2
Encoders















Internet




cloud-big
PP/CP



VOD Server
cloud-big

Terrestrial
Video TN

live




TV middlewareServer

NAS



VOD Server
Access
building-04
POP
router-core
Cyber Apartment(MDU)
MDU




optical-fiber
MDU






ES

ES
optical-fiber

L3


CPE

100BaseTX

GbE

building-04
GbE-R

VOD Server
NAS
VOD Server
VOD Server
VoD HE



building-04
GbE-R

VOD Server
NAS
VOD Server
VOD Server
VoD HE


building-04
GbE-R

VOD Server
NAS
VOD Server
VOD Server
VoD HE



building-04
VOD Server
NAS
VOD Server
VOD Server
VoD HE



ServicesBroadcast TV: 100 CHs (@4.2Mbps), 월정액: 25,000원VoD: 50 titles at local CO. 편당1000원?, 월평균4 편NVoD(SVoD): 5 CHs(HBO, SpiceTV. @4.2Mbps) Internet: 월정액30,000원Phone
MarketMDU Market size: 100,000 HH (연200,000HH 신축/재건축) MDU density: 1,000 HH/MDU초기가입자, 가입자증가율, 서비스별가입분포
Service 가입분포V+IV+I + SVoDV+I + B-TV V+I + SVoD +B-TVVoD participants
(1) Integrated Network: {Video Transport + Internet Access} Network
MD: GbE/RPR(2.5G), MC: 10GbE/RPR(10G)/DWDM

SP own fiber
servers

100 CHs
?원/연


(2) Separated Network: Video Transport Network, Internet Access Network
VTN: MD: , MC:
IAN:  MD:, MC:



Metro
Distribution

Metro
Core

Service Provider Expense






Lucent: Video over DSL Solution







Summary
.Metro Optical Ethernet (EoDF, EoS, EoRPR, EoDWDM)의도래

.Metro access와Metro Core 구간의병목해소, 광대역화

.이러한홖경에서Emerging Service는

.Enterprise: BoD, QoS, VPN

.Residential: Video over IP


.Korea

.Enough Fiber Infra

.대부분의대도시Office Building이광읶입완료

.발달된Residential Access Network (DSL, CM)

.무진장많은Internet User

.아파트라는독특한주거형태

.위의두서비스에서세계적선두가능


.국내SP와Vendor의분발이요구됨.



Broadband InfraMetro EthernetADSL/VDSL
ResidentialBB Internet accessVoDNVoDBroadcast TVPPV
Enterprise
BB Internet access
BW on Demand
VPN
Tiered Service






JangwooSonNetmanias.ComE-mail) son@netmanais.comPCS) 010-3460-5747 URL) https://www.netmanias.com
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