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Service Creation in Optical Ethernet Network
Service Creation in Optical Ethernet Network
February 20, 2002 | By Netmanias (tech@netmanias.com)
코멘트 (0)
14

손장우 @ Netmanias (tech@netmanias.com)

 

2월 20일 경주에서 열린 HSN2002에서 발표한 자료입니다. Optical Ethernet Access Network에서 Service Creation에 관한 생각을 정리한 내용입니다.

Thank you for visiting Netmanias! Please leave your comment if you have a question or suggestion.
Transcript
Service Creation in Optical Ethernet Network02/20/2002Jangwoo SonNetmanias.ComE-mail) son@netmanais.com, PCS) 016-460-5747, URL) http://www.netmanais.com

Presentation for HSN2002

Contents

Legacy Leased Line (For Internet access, Private line)

Metro Optical Ethernet의도입

.Low-cost and High-speed service

.Internet access

.L2 Ethernet VPN: VLAN, MPLS (LAN-to-LAN interconnection service within MAN, WAN)

.Both, 1M~10M~100M~+ /customers

.VLAN의확장성한계: VPN based-on Ethernet over MPLS or IPsec


Service Creation

.Ethernet

.MPLS

.IPSEC


Conclusion

Big Picture


Metro Core

Metro Core

Nation-wide
Backbone


Metro Core

cloud-big





cloud-big
Global Internet

IDC

Enterprise

Home
Enterprise

Home


cloud-big
Access

Access


cloud-big

Access

Last-mile




cloud-big
Access

Enterprise

IX

POP

POP

POP

CO

CO
CO

CO





Legacy TDM-based service


Metro Core

Metro Core

Nation-wide
Backbone

Metro Core

cloud-big





cloud-big
Global Internet

IDC


Enterprise

Home

Enterprise

Home

Access


Last-mile




cloud-big
Access

Enterprise
Backbone
DWDM, TSR

LAN
Gigabit Ethernet

Metro
TDM/SONET

Access
64K, 128K,…, T1/E1, T3

Metro
TDM/SONET

Access
64K, 128K,…, T1/E1, T3

Access
64K, 128K,…, T1/E1, T3

LAN
Gigabit Ethernet

LAN
Gigabit Ethernet






Legacy TDM-based service

Metro Core

Metro Core

Nation-wideBackbone

Metro Core

cloud-big





cloud-big
Global Internet

IDC

Enterprise

Home

Enterprise

Home

cloud-big
Access

Access



Access

Last-mile




cloud-big
Access

Enterprise

IX


MAN: Private line
(64K~T1)


WAN: Private line(64K~T1)

Internet access
(64K~T1)

TDM/SONET

Low BW, High Price service






Problem of SONET/SDH
Metro Core

Metro Core

Nation-wide
Backbone

Metro Core

cloud-big





cloud-big
Global Internet

IDC

Enterprise

Home

Enterprise
Home


cloud-big
Access

Access



Access

Last-mile




cloud-big
Access

Enterprise

Backbone
DWDM, TSR

LAN
Gigabit Ethernet

Metro
TDM/SONET/POS

Access
64K, 128K,…, T1/E1, T3

Metro
TDM/SONET/POS

Access
64K, 128K,…, T1/E1, T3

Access
64K, 128K,…, T1/E1, T3

LAN
Gigabit Ethernet

LANGigabit Ethernet
.Circuit switching/TDM

.BW allocation flexibility

.Upgrade ?

.Long lead time








Metro Optical Ethernet

Metro Core

Nation-wide
Backbone

Metro Core

cloud-big





cloud-big
Global Internet

IDC

Enterprise

Home

Enterprise

Home
Access
Access
Last-mile
Enterprise

Backbone
DWDM, TSR

LAN
Gigabit Ethernet

LAN
Gigabit Ethernet

LAN
Gigabit Ethernet

100M~1Gbps

1~2.5~4~10 Gbps

Metro
TDM/SONET/POS

Access
64K, 128K,…, T1/E1, T3

Metro
TDM/SONET/POS

Access
64K, 128K,…, T1/E1, T3

Access64K, 128K,…, T1/E1, T3
MetroOptical EthernetNG-SONETRPRCWDM/DWDM
Access
Optical Ethernet
1M~10M~100M~1G

Access
Optical Ethernet
1M~10M~100M~1G

Access
Optical Ethernet
1M~10M~100M~1G

Metro
Optical Ethernet
NG-SONET
RPR
CWDM/DWDM

Ethernet Evolution

Native Ethernet
(LAN)

The 1stGeneration
Metro Optical Ethernet

The 2ndGeneration
Metro Optical Ethernet


BW guarantee(CO)
= Ingress rate-limiting (UPC)
+ 802.1q VLAN (Connection)
+ 802.1p priority queueing

Switch architecture
H/W-based wire-speed L2/L3
forwarding,queueing and scheduling

CoS/QoS
Diff-serv to 802.1p mapping

Resiliency/RestorationRSTP/EAPS (1sec)
No BW guarantee(CL)
Resiliency
STP (30sec)

P-to-P, Mesh topologies

Short range Optics
1000BaseLX (5Km)

Geographic limitation
Ethernet LAN

No CoS/QoS

End-to-end BW guarantee(CO)
= Ingress rate-limiting (UPC)
+ MPLS LSP
(Per-LSP BW reservation)

Switch architecture
H/W-based wire-speed MPLS
forwarding, queueing and scheduling

MPLS CoS/QoS
802.1p/TOS/Diff-serv/port #
to Exp/CoS or LSP

Resiliency/Restoration
MPLS fast reroute (100msec)

Ring: RPR (802.17)
-SRP
-Restoration (<50msec)
-Fair ring-access
-Statistical BW sharing

Long range optics
BGIC/CWDM/DWDM

Geographic limitation
Ethernet WAN

10 Gigabit Ethernet/40GbE

Real-time/Web-based/
Self-provisioning

VoIP
Usage-based billing



Ring topology

Usage-based billing

Real-time provisioning

1 Gigabit Ethernet/4GbE

Geographic limitation
Ethernet MAN

Long range optics (70~150Km)
BGIC/CWDM






Ethernet’s Value Chain


Dynamic provisioning

CWDM/DWDM

RSTP (ieee 802.1w)

Multi-Field Packet
Classification

Wire-speed forwarding (L2)
Port security: VLAN
VLAN connectivity

802.1p priority queueing

Wire-speed forwarding (L3)

ACL security
(L2: MAC filtering, Authentication)

Ethernet over MPLS

Diff-Serv/Int-Serv

Long range optic (40~120Km)

NAT

EFM / EoVDSL

Ethernet over MPLS

High speed switching fabric

STP

Ring topology
:RPR, fairness,SM

Rate-limiting

10GbE
RPR (ieee 802.17)
MPLS

Low cost and High Speed Ethernet

New Enabling
Ethernet Technologies

Ubiquitous Ethernet

Reducing total cost of ownership
Simplicity (reduce the operation-cost)
IP-based single network platform providing various service: Data, Voice and Video
End-to-end solutions
Easy deployment, installation, management and operation
Maintenance: Remote monitoring/maintenance operation/troubleshooting, statistics accounting for billing purpose.
99.999% availability
Scalability (10M-100M-1G-10Gbps)
Standard and interoperable (Operate multi-vendor networks)
Managed BW service
Value-added service through Differentiated Services
Metro access for long-haul networks (for Inter-city VPN service)

Ethernet can meet
Service Provider’s Need

Value-Added Services:
Internet access, Ethernet private line, VoIP, VoD, Wholesale service, ASP/CSP/DBSP access

Ethernet-based
Low cost & High speed
Service






Gigabit Ethernet MAN

Nation-wideBackbone
Metro Core
Global Internet
IDC
Enterprise
Enterprise
Access

MTU

100M~1Gbps

1~2.5~4~10 Gbps

Metro Core (국간)
Ethernet Switch

Ethernet Switch (L2/L3)
Optical Ethernet Access
Ethernet Switch
Edge Node(가입자집선)
Dark Fiber
Fiber
IP
ATM
SONET
GbE/10Gbe
Gigabit Ethernet MAN service
Metro Core
Eterprise
MTU
EN
Optical Ethernet Access
Internet
Data Center
LAN

Internet access
(1~10~100+Mbps)

Ethernet Private Line
802.1q VLAN

IDC access
(ASP, CSP, DBCP)

Internet Access: Edge Node

Enterprise

Optical Access
MTU

Internet access
Internet

Data Center
Metro Core Ethernet Switch
Edge Node

Company A (HQ)
Company B
Company A (BO)
Edge Node 기능= Ethernet Aggregation

Service Creation Node (SCN)

Enterprise

Optical Access


cloud-big
Optical Access

MTU

Internet access

Ethernet Private Line
802.1q VLAN





Internet

Data Center

IDC access
(ASP, CSP, DBCP)


Metro Core
Ethernet Switch

SCN

SCN (Service
Creation Node)



Company A
(HQ)

Company B

Company A
(BO)


Edge Node 기능
= Ethernet Aggregation + Service Creation (QoS, VPN,…)
= SCN (Service Creation Node)

LAN

LAN

LAN

LAN

Ethernet 전용회선

Enterprise

MTU

Ethernet Private Line
802.1q VLAN

Metro optical Core

MTU

Company A
BW: 5 Mbps
QoS: Best-Effort
Price: 500,000 Won/Month

Company B
BW: 20 Mbps
QoS: 1Mbps~Gold, 19Mbps~Best-Effort
Price: 1Mbps Gold~500,000 Won/Month
19Mbps Best-effort ~ 1,900,000 Won/Month
Total Price: 2,400,000 Won/Month

E

E

E

E

SCN

SCN

SCN

SCN

Service Creation

.End-to-end connection: 802.1q VLAN.Multi-Field Packet Classification (L2/L3/L4 header).Ingress rate limiting/guaranteeing  (ex. 20Mbps ingress rate)


.MFPC (L2/L3/L4 header)
.802.1p로mapping (Priority marking).Priority queueing: 802.1p

cloud-small
LAN

PC
PC
PC

cloud-small
LAN

PC
PC
PC


Company B
BW: 20 Mbps
QoS: 1Mbps~Gold, 19Mbps~Best-Effort
Price: 1Mbps Gold~500,000 Won/Month
19Mbps Best-effort ~ 1,900,000 Won/Month
Total Price: 2,400,000 Won/Month




Fastlinx-5408
Fastlinx-5408
E

E

E

E

SCN

SCN






-Secure Tunnel

-Application BW guarantee

-Application QoS guarantee


1) Secure L2 Connectivity: Tagged VLAN

cloud-small
LAN

PC
PC
PC

cloud-small
LAN
PC
PC
PC





Fastlinx-5408
Fastlinx-5408
MAC   VLAN ID  port
B         7              b
G         105          g



MAC   VLAN ID  port
B          7             c
D          5             c



.One VLAN per customer

.VLAN across MAN-Statically pre-configured, or-Automatically provisionedusing GARP/GVRP



MAC
A

MAC
B


A

B




MAC   VLAN ID  port
B          7             x
K          106         y



MAC   VLAN ID  port
B          7             a
D          5             a



MAC   VLAN ID  portB          7             bK          106         g


VLAN 7
(802.1q)


Forwarding based-on
{dst MAC addr. + VLAN ID}

E

E

E

E
SCN

SCN



7
A

B


7

A

B


A

B





2) Multi-Field Flow Classification

Enterprise

optical-fiber
MTU
cloud-small
LAN

PC
PC
CPE


PC
MTU

cloud-small
LAN

PC
PC

PC

100BaseT

optical-fiber

Fastlinx-5408
5408RF


Mlayer-SW-1
Fastlinx-5408
Mlayer-SW-1


Policy
-Rate Limiting  
-Priority marking

2 priority
queues

LOW

8B
6B

6B

4B

2B

1B

4B
4B

1B

2B
2B

Ethernet(L2)

IP (L3)

TDP/UDP (L4)

Pre

dst
MAC

srcMAC
Type
0x0800


CRC


dst
IP



Protocol
ID

src port
number


Userdata
TOS

src
IP

dst portnumber







Discard




VoIP packet

HIGH

Classification
(classify flows)

Max 100M
Unclassified

Packet Filter


19M

1M




cloud-small
LAN

PC
PC
PC

cloud-small
LAN

PC
PC
PC
Fastlinx-5408
Fastlinx-5408
MAC
A

MAC
B


A
B


Edge: Ingress Point


SCN




SCN






Multi-Field Flow Classification

MAC

IP
0800

IPX
8138

RARP8035
ARP
0806

VLAN Tag
1800

UDP17
TCP
06

RSVP
46

IGMP
02

ICMP
01

Telnet
23

HTTP
80

FTP
20

SMTP
25

DNS
53

RTP
5004

Ethernet(L2)

IP (L3)

TDP/UDP (L4)

Pre
dst
MAC

src
MAC

Type0x0800

CRC


dst
IP



Protocol
ID

src port
number


User data

TOS

src IP

dst port number


3) Rate-limiting

MTU-CO
Enterprise

optical-fiber
MTU

cloud-small
LAN

PC
PC
CPE


PC
MTU


cloud-small
LAN

PC
PC

PC

100BaseT

optical-fiber

Fastlinx-5408
5408RF


Mlayer-SW-1
Fastlinx-5408
Mlayer-SW-1


Policy
-Rate Limiting  
-Priority marking

2 priority
queues

LOW





Discard


VoIP packet

HIGH

Classification
(classify flows)

Max 100M
Unclassified


PacketFilter

19M


1M

Rate Limiting1.Port rate-limiting

2.Application rate-limiting



Up: 20Mbps

20 Mbps

20 Mbps

Down: 20Mbps

Customer

cloud-small
LAN

PC
PC
PC

cloud-small
LAN

PC
PC
PC
Fastlinx-5408
Fastlinx-5408
MAC
A

MACB

A

B

Edge: Ingress Point

4) 802.1p priority marking

cloud-big

Fastlinx-5408
GbE

LAN

PC

Fastlinx-5408
5408RT


6509


Fastlinx-5408
Mlayer-SW-1
Mlayer-SW-1
Fastlinx-5408
Enterprise


optical-fiber
cloud-small
LAN
PC
PC
CPE


PC
MTU


LAN

PC
PC

PC

100BaseT

optical-fiber

Fastlinx-5408
5408RF


Mlayer-SW-1
Fastlinx-5408
Mlayer-SW-1

Policy
-Rate Limiting  
-Priority marking

2 priority
queues

LOW

Discard


VoIP packet

HIGH

Classification
(classify flows)


Max 100MUnclassified

































Packet
Filter


19M


1M


8B

6B

6B

4B

2B

1B

4B

4B

1B

2B

2B

Pre

dstMAC
src
MAC

Type
0x0800


CRC

dst
IP



Protocol
ID

src port
number


User
data

TOS

src
IP

dst port
number

802.1
p/q tag

2B

Type
0x8100

2B

TPI
0x8100

Priority
CFI

VLAN ID

16 b
3 b

1 b

12 b

Port srcMAC dstMAC TOS srcIP       dstIP      srcPort# dstPort#  VLAN ID  priority
#1   mac_a  mac_b  7   165.132/16  165.154/16   x        y         7         1






802.1p/q header



1/7

A

B


A

B



3/7

A

B

A

B




cloud-small
LAN
PC
PC
PC

cloud-small
LAN

PC
PC
PC
Fastlinx-5408
Fastlinx-5408
MAC
A

MAC
B


A

B


















E

E

E

E

SCN



SCN







5) Priority queueing and scheduling


cloud-big

Fastlinx-5408
GbE
LAN

PC

Fastlinx-5408
5408RT



6509


Fastlinx-5408
Mlayer-SW-1
Mlayer-SW-1
Fastlinx-5408
Enterprise


optical-fiber
MTU

cloud-small
LAN

PC
PC
CPE


PC

PC


100BaseT

optical-fiber

Fastlinx-5408
5408RF


Mlayer-SW-1
Fastlinx-5408
Mlayer-SW-1






















Policy
-Rate Limiting  
-Priority marking

2 priority
queues

LOW





Discard


VoIP packet

HIGH

Classification(classify flows)





























Max 100M
Unclassified


































Packet
Filter


19M


1M


2 priority
queues

LOW

HIGH





Static priority,
WFQ








1/7

A

B


3/7

A

B


1/7

A
B


3/7

A

B


1/7

A

B


3/7

A

B




cloud-small
LAN

PC
PC
PC

cloud-small
LAN

PC
PC
PC
Fastlinx-5408
Fastlinx-5408
MAC
A

MAC
B


A

B

















E

E

E

E

SCN



SCN







6) Priority queueing and scheduling

PC
PC
CPE

Enterprise

cloud-small
LAN

PC
PC
CPE


PC
100BaseT

5408RF


Mlayer-SW-1
Mlayer-SW-1
Fastlinx-5408
Fastlinx-5408

8B

6B

6B

4B

2B

1B

4B

4B

1B

2B

2B

Pre

dst
MAC

src
MAC

Type
0x0800


CRC

dst
IP



Protocol
ID

src port
number


User
data

TOS

src
IP

dst port
number

802.1
p/q tag

2B

Type
0x8100

2B















Priority
Field
체크

Highest Priority

Lowest Priority


Priority Field(802.1p bits)


7
A

B

1


5

C

D

3

Metro Core Node
-VLAN ID + DstMAC: Forwarding
-802.1p: Pririty queueing and scheduling


3/5

C

D


1/7

A

B


1/7

A
B


3/5

C

D


1/7

A

B


3/5

C

D




cloud-small
LAN

PC
PC
PC

cloud-small
LAN

PC
PC
PC
Fastlinx-5408
Fastlinx-5408
MAC
A

MAC
B


















E

E
E

E

SCN

SCN






1/7

A

B





















cloud-small
LAN

PC
PC
PC

cloud-small
LAN

PC
PC
PC





Fastlinx-5408
Fastlinx-5408
E

E

E

E
SCN

SCN






Secure and Differentiated Service

.End-to-end connection: 802.1q VLAN.Multi-Field Packet Classification (L2/L3/L4 header).Ingress rate limiting/guaranteeing  (ex. 20Mbps ingress rate)


.MFPC (L2/L3/L4 header)
.802.1p로mapping (Priority marking).Priority queueing: 802.1p



Company B
BW: 20 Mbps
QoS: 1Mbps~Gold, 19Mbps~Best-Effort
Price: 1Mbps Gold~500,000 Won/Month
19Mbps Best-effort ~ 1,900,000 Won/Month
Total Price: 2,400,000 Won/Month

Best-Effort Stream
(Low priority, 19Mbps)



Secure Tunnel (VLAN)


Gold Stream
(High priority, 1Mbps)

Service Creation at Edge






SCN

D:\\PPT Master Folder\\_Brushstroke icons\\clouds\\cloud blue.JPG












Enterprise

02202002\\image.jpg
cloud-big
Optical Access


cloud-big
Optical Access
02202002\\image3.jpg
MTU

Internet access

Ethernet Private Line
802.1q VLAN





\\DC-27RACB.jpg
Internet
Data Center

IDC access
(ASP, CSP, DBCP)

E

E

E

E















SCN

SCN



E

Metro Core
Ethernet Switch

SCN

SCN (ServiceCreation Node)


Company A
(HQ)

Company B

Company A
(BO)













SCN (Service Creation Node) 기능= Ethernet Aggregation + Service Creation (QoS, VPN,…)
LAN

LAN

LAN

LAN







Low cost and High Speed

.Internet access service

.Ethernet Private Line service


Edge

.Multi-Field Packet Classification

.Rate-limiting (Customer, Application)

.QoS Marking (802.1p, Diff-Serv)


Metro Core

.High-speed forwarding

.802.1p priority queueing and scheduling


Secure and High-speed Ethernet Connection

.802.1q VLAN

.One VLAN ID per Customer

.Scalability Problems









Problem of VLAN-based Ethernet-VPN service












Enterprise

MTU

Ethernet Private Line802.1q VLAN
Metro optical Core






MTU

VLAN space limitation: 4096 VLANs (VLAN ID=12bits)

MAC address learning problem

No Bandwidth reservation in metro core (end-to-end)

No traffic engineering in metro core (STP Path)

Long STP Convergence time (>30sec)



E
E

E

E

SCN

SCN
SCN

E

Metro Core
Ethernet Switch

SCN

SCN (Service
Creation Node)

LAN

LAN
LAN

LAN






MPLS의도입

VLAN space 문제해결(VLAN ID Reuse)

Metro Core에서MAC주소수문제해결

Traffic Engineering in Metro Core

Protection: MPLS Fast Reroute (<100msec)

MPLS QoS: LSP별로차별화또는Ext/CoS비트

MPLS-based Layer 2 VPN

Scalability

Security


MPLS MAN의도입


Metro Core
Metro Core

Nation-wide
Backbone

Metro Core

cloud-big



Global Internet

IDC

Enterprise

Home
Enterprise

Home

cloud-big
Access

Access

Access


Access

Enterprise

LAN
Gigabit Ethernet

LANGigabit Ethernet
LAN
Gigabit Ethernet

MPLS Tunnel

Private line
(1~10~100+Mbps)

























VLAN

VLAN

C1

C1
C2

C2





M

M
M

M

M

M

M
M

M

M

M

M






MPLS WAN의도입


Metro Core

Metro Core
Nation-wide
Backbone

Metro Core
Global Internet

IDC


Enterprise
Home

Enterprise

Home

Access

Access


Access

Access


Enterprise

LAN
Gigabit Ethernet

LAN
Gigabit Ethernet

LANGigabit Ethernet
MPLS Tunnel

Private line
(1~10~100+Mbps)


VLAN

VLAN

C1
C1

C2

C2

C2

MPLS Tunnel


M

M

M

M

M

M
M

M






IPsec 기반

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.

IPsec (Network-Based)

Metro Core

Metro Core

Nation-wide
Backbone

Metro Core

Global Internet

IDC


Enterprise

Enterprise

Optical Ethernet
Access Network

Access
Enterprise

Private line (MAN)(1~10~100+Mbps)
C1

C1

C2

C2

C1

IP Routing Network

IPsec Tunnel



VLAN

















Private line (WAN)
(1~10~100+Mbps)

Optical Ethernet
Access Network

Optical Ethernet
Access Network

SCN
SCN

SCN







IPsec Tunnel







Sample Bill

Metro Core

Metro Core

Nation-wide Backbone


Metro Core

Global Internet

IDC

Enterprise

Enterprise

Optical EthernetAccess Network
Access

Enterprise

Private line
(1~10~100+Mbps)

C1

C1

C2

C2

C1

IP Routing Network

IPsec Tunnel



VLAN



Private line
(1~10~100+Mbps)

Optical Ethernet
Access Network

Optical Ethernet
Access Network

SCN

SCN
SCN







IPsec Tunnel

Conclusion

Optical Ethernet: BW 판매시장에진입

.100만원/10Mbps

.50만원/5Mbps


Next: Service 판매

.Internet Access Service

.QoS service

.VPN service

.Firewall service


Service Creation: Intelligent Edge

.Classification(L2/L3/L4)

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

.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

 

 

     
         
     

 

     
     

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