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스폰서채널 |

 

  스폰서채널 서비스란?
On VPLS
On VPLS
June 30, 2003 | By Netmanias (tech@netmanias.com)
코멘트 (0)
15

손장우 @ Netmanias (tech@netmanias.com)

 

2003년 6월 27일에 KRNET2003에서, 8월 한국전산원에서 발표한 자료입니다. 

 

차례는 다음과 같습니다.

▣ Metro Ethernet Service의 출현

▣ Metro Ethernet Service 현황

▣ Classifying Metro Ethernet Services

▣ Multipoint Services

   - VLAN-based

   - EoMPLS (PTP)

   - VPLS

Thank you for visiting Netmanias! Please leave your comment if you have a question or suggestion.
Transcript
VPLS(Virtual Private LAN Service)

2003년6월27일
손장우
010-3460-5747
02-3444-5747
https://www.netmanias.com, son@netmanias.com

Presentation for KRNET 2003

www.netmanias.com


2

Contents

1.Metro Ethernet Service의출현
2.Metro Ethernet Service 현황
3.Classifying Metro Ethernet Services
4.Multipoint Services
1.VLAN-based
2.EoMPLS (PTP)
3.VPLS


www.netmanias.com


3

Network Segmentation

Core Router

Long-haul DWDM

Edge Router
Optical Ethernet (EoDF)

NG-SONET(EOS)

RPR(EORPR)

Metro DWDM(EODL)

SONET

ATM

SER

Access

Metro
Distribution  Core

BB

CP

Edge


Core

Optical Ethernet (EoDF)

RPR(EORPR)

NG-SONET(EOS)
xDSL

Cable Modem

E-PON

SER (MPLS, IPsec)







Enterprise
(Large, SME)
(Single, MTU)
1. STU
2. MTU

Residential
1. Home
2. MDU

TDM/SONET

ATM

xDSL

Cable Modem

Optical Ethernet

ATM

E-PON

Network Segmentation

MTU: Multi-Tenant Unit
MDU: Multi-Dwelling Unit (Apart)
MPLS: Multi-Protocol Label Switching
NG-SONET: Next-Generation SONET
EoS: Ethernet over SONET/SDH
PON: Passive Optical Network
TDM: Time-Division Multiplexing
DSL: Digital Subscriber Line
EoDF: Ethernet over Dark Fiber
RPR: Resilient Packet Ring
ATM: Asynchronous Transfer Mode
DWDM: Dense Wavelength Division
Multiplexing












www.netmanias.com


4




Before Metro Ethernet: Legacy Networks

Metro

MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
cloud
ATMswitchrouter
ATMswitchrouter


2.5Gbps
(POS)





GSR

GES
















동선

FLC

STM-4 (2.5G)



Edge
Router
(7500)

ADM

DSC
(D/MUX)

FLC

DSC
(D/MUX)

ADM




CSU

OC3

OC3/
OC12

Internet

MTU

STU

ADSL (1.5M~8Mbps)

DSLAM

B-RAS
















DS3/
OC3

DS3/
OC3

Home

CO(수용국)

POP(주노드국)








수용국

수용국

ADM

ADM

LAN C

LAN A

LAN B

SONET/SDH

Access

MTU-Metro

MTU-Metro





ADSL
(8Mbps)


pc
pc
pc
pc








8M








ATM/STM

OC3/12

DSLAM





ATM SW

FLC
(RT)

FLC
(COT)

ADM

ADM

OC48

B-RAS

Core Router






















CO

POP


ATM SW

cloud

Internet

ATMswitchrouter
T1

T1

MDU




CSU








LAN D

T1

T1


MDF

SONET/SDH














www.netmanias.com


5





Enterprise MAN: Before Metro Ethernet

Metro

MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
cloud
ATMswitchrouter
ATMswitchrouter


2.5Gbps
(POS)





GSR

GES
















동선

FLC

STM-4 (2.5G)



Edge
Router
(7500)

ADM

DSC
(D/MUX)

FLC

DSC
(D/MUX)

ADM




CSU

OC3

OC3/
OC12

Internet

MTU

STU

ADSL (1.5M~8Mbps)

DSLAM

B-RAS
















DS3/
OC3

DS3/
OC3

Home

CO(수용국)

POP(주노드국)








수용국

수용국

ADM

ADM

LAN C

LAN A

LAN B

SONET/SDH

Access

MTU-Metro

MTU-Metro





ADSL
(8Mbps)


pc
pc
pc
pc








8M








ATM/STM

OC3/12

DSLAM





ATM SW

FLC
(RT)

FLC
(COT)

ADM

ADM

OC48

B-RAS

Core Router






















CO

POP


ATM SW

cloud

Internet

ATMswitchrouter
T1

T1

MDU




CSU








LAN D

T1

T1


MDF

SONET/SDH














www.netmanias.com


6




Enterprise MAN service

Metro

MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
cloud
ATMswitchrouter
ATMswitchrouter


2.5Gbps
(POS)





GSR

GES
















동선

FLC

STM-4 (2.5G)



Edge
Router
(7500)

ADM

DSC
(D/MUX)

FLC

DSC
(D/MUX)

ADM




CSU

OC3

OC3/
OC12

Internet

MTU

STU

ADSL (1.5M~8Mbps)

DSLAM

B-RAS
















DS3/
OC3

DS3/
OC3

CO(수용국)

POP(주노드국)








수용국

수용국

ADM

ADM

LAN C

LAN A

LAN B

SONET/SDH

Access

MTU-Metro

MTU-Metro





ADSL
(8Mbps)


pc
pc
pc
pc








8M








ATM/STM

OC3/12

DSLAM





ATM SW

FLC
(RT)

FLC
(COT)

ADM

ADM

OC48

B-RAS

Core Router






















CO

POP


ATM SW

cloud

Internet

ATMswitchrouter
T1

T1

MDU




CSU








LAN D

256Kbps

256Kbps


MDF

SONET/SDH


T1 (1.544Mbps)


Internet Access

Private Line

Home














www.netmanias.com


7




Enterprise MAN service: Low-Speed

Metro

MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
cloud
ATMswitchrouter
ATMswitchrouter


2.5Gbps
(POS)





GSR

GES
















동선

FLC

STM-4 (2.5G)



Edge
Router
(7500)

ADM

DSC
(D/MUX)

FLC

DSC
(D/MUX)

ADM




CSU

OC3

OC3/
OC12

Internet

MTU

STU

ADSL (1.5M~8Mbps)

DSLAM

B-RAS
















DS3/
OC3

DS3/
OC3

CO(수용국)

POP(주노드국)








수용국

수용국

ADM

ADM

LAN C

LAN A

LAN B

SONET/SDH

Access

MTU-Metro

MTU-Metro





ADSL
(8Mbps)


pc
pc
pc
pc








8M








ATM/STM

OC3/12

DSLAM





ATM SW

FLC
(RT)

FLC
(COT)

ADM

ADM

OC48

B-RAS

Core Router






















CO

POP


ATM SW

cloud

Internet

ATMswitchrouter
T1

T1

MDU




CSU








LAN D

256Kbps

256Kbps


MDF

SONET/SDH


T1 (1.544Mbps)


Gbps

Gbps

Gbps

Bottleneck

Home














www.netmanias.com


8






Enterprise MAN service: High-Cost

Metro

MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
cloud
ATMswitchrouter
ATMswitchrouter


2.5Gbps
(POS)





GSR

GES
















동선

FLC

STM-4 (2.5G)



Edge
Router
(7500)

ADM

DSC
(D/MUX)

FLC

DSC
(D/MUX)

ADM




CSU

OC3

OC3/
OC12

Internet

MTU

STU

ADSL (1.5M~8Mbps)

DSLAM

B-RAS
















DS3/
OC3

DS3/
OC3

CO(수용국)

POP(주노드국)








수용국

수용국

ADM

ADM

LAN C

LAN A

LAN B

SONET/SDH

Access






















T1

T1




CSU








LAN D

T1 1.544 Mbps



T1 (1.544Mbps)





64Kbps

28

STS-1
(45M)



STS-N











OC-N







24

1

1

1.544Mbps





STS-1






64Kbps

28

STS-1



STS-N










24

1

1

1.544Mbps





STS-1




TDM multiplexing/Circuit switching
No Statistical multiplexing


T1 1.544 Mbps

High-Cost

T1 1.544 Mbps

T1 1.544 Mbps

Home














www.netmanias.com


9







MTU



New ESP (Ethernet Service Provider)출현

Metro

MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
cloud
ATMswitchrouter
ATMswitchrouter


2.5Gbps
(POS)





GSR

GES
















동선

FLC

STM-4 (2.5G)



Edge
Router
(7500)

ADM

DSC
(D/MUX)

FLC

DSC
(D/MUX)

ADM




CSU

OC3

OC3/
OC12

Internet

MTU

STU

CO(수용국)

POP(주노드국)








수용국

수용국

ADM

ADM

LAN C

LAN A

LAN B

SONET/SDH














T1

T1




CSU








LAN D

T1

T1
















Optical Router
Optical Router
Optical Router
Optical Router
ATMswitchrouter






CO

CO

CO

POP

cloud
Internet


GSR

MTU

MTU

MTU

GbE

GbE

Access





Optical Router


MTU



Optical Router
Optical Router
Optical Router
Optical Router






MTU

Optical Router






MTU

MTU

GbE


MTU

Optical Router
Optical Router
Optical Router
Optical Router
CO

Telseon
Yipes
Cogent












www.netmanias.com


10








Ethernet Evolution

MTU-Metro



MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro

Optical Ethernet
EoMPLS
VPLS
EoRPR
NG-SONET(EoS)
Metro DWDM

Optical Ethernet
EoMPLS
VPLS
RPR
NG-SONET(EoS)
Metro DWDM


IP ADSL
IP VDSL
Optical Ethernet
EoRPR
NG-SONET(EoS)

Access

Metro Distribution

Metro Core

cloud
Global
Internet



MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
ATM
SONET/SDH

ATM
SONET/SDH

ATM ADSL
T1/E1
FR
ATM

cloud
Global
Internet


Home

MDU

STU

MTU

Residential

Enterprise












www.netmanias.com


11

Trend,…

Ethernet over …

conf3
Dark fiber

NG-SONET

RPR

MPLS/VPLS

DWDM

Internet access service
Ethernet Private Line Service
Transparent LAN Service


Metro


Legacy
Metro

가입자


T1, E1

가입자


Ethernet













www.netmanias.com


12

국내의경우

.원래Metro Ethernet은Enterprise의BW bottleneck을해소해주기위한기술로서미국에서시장에처음출현(Telseon, Yipes, Cogent)

.국내에서는Residential Broadband Solution과게임방으로Metro Ethernet이먼저도입됨.

.2003년부터기업용Metro Ethernet 서비스가도입되기시작하고있음.














www.netmanias.com


13




Residential: Before Metro Ethernet

Metro

MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
cloud
ATMswitchrouter
ATMswitchrouter


2.5Gbps
(POS)





GSR
GES
















동선

FLC

STM-4 (2.5G)



Edge
Router
(7500)

ADM

DSC
(D/MUX)

FLC

DSC
(D/MUX)

ADM




CSU

OC3

OC3/
OC12

Internet

MTU

STU
ADSL (1.5M~8Mbps)

DSLAM

B-RAS
















DS3/
OC3

DS3/
OC3

Residential
Home

CO(수용국)

POP(주노드국)








CO

수용국

ADM

ADM

LAN C

LAN A

LAN B

SONET/SDH
Access

MTU-Metro

MTU-Metro





ADSL
(8Mbps)


pc
pc
pc
pc








8M








ATM/STM

OC3/12

DSLAM





ATM
SW

FLC
(RT)

FLC
(COT)

ADM

ADM

OC48

B-RAS

Core Router



















CO
POP


ATM
SW

cloud

Internet

ATMswitchrouter
T1

T1

MDU




CSU








LAN D

T1

T1


MDF

SONET/SDH

DSLAM















ADSL (1.5M~8Mbps)





Ethernet

ATM
Ethernet












www.netmanias.com


14

十.

志村

落合別館
北町

成.

南板橋
別館

練馬

赤羽
.業別館

.鴨

板橋

王子

東京
大塚

池袋

東京
上野

九段

西新井

東京
荒川

駒.
第二

石神井
西練馬

東京
大泉

.町

杉.

高円寺

東京
野方

松.
...2

四谷

淀橋

新宿

西新宿

中野

牛.

東京
大久保

井草

荻窪
上北.

東京
烏山

久我山

田端
尾久

白鬚

吉原

.草

小石川

千住

.前

東京
浜町

墨田

本所

茅場兜

江東

竹の塚
梅島

東京
綾.

金町

.有

向島

小岩

葛西

東京
城東

江.川

東江
.川

東京
深川

神田

駿河台

丸の.

大手町
FS

霞ケ.
東京
赤坂

代.木

東京
.山



東京
三田

品川

目.
本館

東.谷

.谷

世田谷

自由が丘

唐ヶ崎

東京
玉川

東京
.田



.江
成城

弦.

田園
調布

矢口

雪ケ谷

池上

馬.

大森

蒲田

羽田

白金

大田支店
埠頭

大崎
別棟

荏原

葛飾

大崎






















































































































MTU-Metro
MTU-Metro
Residential: After Metro Ethernet





cloud blue
Internet

POP

Dark fiber
(from NTT)

GSR

Ethernet

Sub_ring

Main_ring

Last-mile


CO







ADSL

Existing
telephone line


6512




IP DSLAM

Ethernet

L3 switch
6512
6512
6512
6512
6512
6512








































CO







ADSL

Existing
telephone line



6512




IP DSLAM

Ethernet

L3 switch

6512
6512
6512
6512
6512
6512







































100M

1G

1G

1G

1G

Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
1G













Yahoo!BB












www.netmanias.com


15

MTU-Metro
MTU-Metro
MTU-Metro
Residential: After Metro Ethernet




ho8224ang_9

ho8224ang_9
ho8224ang_9

an2000ib


SwitchATMFastEthr

GbE

an2000ib
an2000ib


IP DSLAM

webserver
webserver
webserver
GatewayVPN


Ethernet
Switch



f240
modem

TV

Modem

IP STB
[Samsung]

TV



















IP multicast (All channels)

(IGMP)
[Utstarcom]


CH1 CH2 Ch3

CH1

CH1

CH2

Metro Core
L3 Switch
[Cisco]

BBcableTV (HE)

IP 방송(19 channels)
(2Mbps MPEG2)

VoD (2Mbps MPEG2)


MPEG2
Encoders
[Harmonic]

VoD
Servers
[sgi]

pc
modem

Hub


PC

ho8224ang_9
f240
modem

TV

Modem

IP STB

TV

pc
modem

Hub


PC

ho8224ang_9
f240
modem

TV

Modem

IP STB

TV

pc
modem

Hub


PC



BBCableTV
BBCableTV
BBCableTV
BBCableTV
BBCableTV
BBCableTV
BBCableTV
BBCableTV
암호화

암호화

.面
Optical Router
Optical Router
Optical Router
Optical Router
Yahoo!BB












www.netmanias.com


16



Residential: After Metro Ethernet

MTU-Metro
MTU-Metro




cloud
ATMswitchrouter

ATMswitchrouter



2.5Gbps
(POS)









GSR

GES

RS38K

Subscriber
Aggregation





1GbE


100FX

catalyst
L2

pc
pc


10/100







L3

DSLAM
VDSL
(20Mbps)



pc
pc
pc
pc








DSLAM

20M

100TX


L3




1GbE

1GbE

L3 SW

1GbE

inventory
VoD server









DSLAM

B-RAS













ADSL (1.5M~8Mbps)




STM-4 (2.5G)



Edge Router
(7500)

ADM

DSC
(D/MUX)

ADM




DS3/
OC3

DS3/
OC3

OC3/12



Kornet
Core

Home

CO

POP


Legacy Service.Home: ADSL



Ethernet

VDSL

MTU-Metro


100FX

catalyst
L2

pc
pc


10/100





L3





L3 SW




DSLAM
VDSL
(20Mbps)



pc
pc
pc
pc








DSLAM

20M

100TX

L3

VDSL


CO


1GbE


Ethernet

MDU


1GbE














ADSL (1.5M~8Mbps)

DSLAM

ADM





Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
Optical Router
DSLAM





VDSL
(20Mbps)

Optical Router
DSLAM


DSLAM





ADSL
(8Mbps)



2002
(85% adsl, Ethernet/vdsl 5%)

2003
(64% adsl, Ethernet/vdsl 33%)

Curb

IP DSLAM

IP DSLAM

IP DSLAM

IP DSLAM











www.netmanias.com


17


MTU-Metro
Enterprise MAN : After Metro Ethernet

MTU-Metro
MTU-Metro
MTU-Metro
MTU-Metro
cloud
ATMswitchrouter
ATMswitchrouter


2.5Gbps
(POS)





GSR

GES















동선

FLC

STM-4 (2.5G)



Edge
Router
(7500)

ADM

DSC
(D/MUX)

FLC

DSC
(D/MUX)

ADM




CSU

OC3

OC3/
OC12

Internet

MTU

STU

POP(주노드국)






수용국

수용국

ADM

ADM

LAN C

LAN A

LAN B

SONET/SDH













T1

T1




CSU








LAN D

T1

T1

catalyst
CPE

pc
pc
pc



catalyst
pc
pc
pc



catalyst


100FX
1GbE

1GbE



(이중화)


L3

L2

L2

Internet cafe

SwitchATMFastEthr
SwitchATMFastEthr




RS38K



1GbE

MTU-Metro
MTU-Metro
catalyst
pc
pc
pc



catalyst
pc
pc
pc



catalyst


100FX

L3

L2

L2






CO

CO

MTU
catalyst
L3


pc
pc
pc



catalyst
L2

pc
pc
pc



catalyst
L2



CPE

CPE



















www.netmanias.com


18

Enterprise MAN : After Metro Ethernet




pc
pc
pc



pc
pc
pc







ATMswitchrouter
SwitchATMFastEthr
catalyst
SwitchATMFastEthr
ATMswitchrouter
ATMswitchrouter
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr






SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
catalyst
catalyst
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
catalyst
catalyst
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
catalyst
catalyst




catalyst

CPE
(L2 SW)

CPE
(L3 SW)

Internet
Cafe

Enterprise



catalyst

M/C

100FX



210.10.1.0/24

210.10.2.0/24





IP Convergence
(Not STP/RSTP)

IP Convergence
(Not STP/RSTP)

IP Convergence
(Not STP/RSTP)

L3

RS1000

RS3000

RS38K

RS38K

RS38K

RS38K

Dacom

HiG

Onse








PBR

(PBR)

pc
pc
pc



pc
pc
pc




catalyst



catalyst

M/C

100FX



Dacom 가입자

HiG 가입자

PBR (Policy-Based Routing)
Policy = Source IP













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19

국내의경우현재는여기까지도입됨.












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20

Classifying Metro Ethernet Services

PTP

Multipoint

EVC
E-Line

E-LAN

EPL

ERS

LAN Extension

VPWS

PW

VPLS

TLS

EWS

ERS

EMS

ERMS

Internet

Retail

Wholesale
Transport

Optical
Ethernet

EoMPLS

VPLS

RPR

EoS

DWDM

Fiber

UTP

Copper line

SONET

EFM

E-PON

Services

Technology












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21


catalyst

Classifying Metro Ethernet Services

Metro Ethernet Service

Connectivity within MEN

PtP EVC
(VPWS, PW, ELS, VLL)

MPtMP EVC
(VPLS, E-LAN Service, TLS)

EPL 서비스
(EWS)

ERS 서비스
(ERS)



LAN Extension
서비스
(EMS)

ERMS서비스
(ERMS)



catalyst
catalyst
catalyst
catalyst
catalyst










EVC1

EVC2

EVC3

CE

CE

CE

CE

CE


UNI



UNI

UNI


UNI


UNI


UNI

catalyst
catalyst
catalyst




EVC1

CE

CE

CE

CE


UNI


UNI


UNI

catalyst

CE


UNI







catalyst
catalyst
catalyst





EVC1

EVC3

CE

CE

CE

Multiplexed
UNI


UNI


UNI








ISP POP
Router





UNI

EVC2

VLAN 1

VLAN 2

VLAN 3

ATMswitchrouter
catalyst
catalyst
catalyst



EVC1

CE

CE

CE

CE


UNI


UNI


UNI


CE


Service Multiplexed UNI







ATMswitchrouter
ISP POP
Router





EVC2



L2/3

L2/3

L3

L2/3

L3




A EVC







A EVC







Service Interface



Physical port/
Logical port (VLAN)


Private Line Service에해당

FR서비스에해당












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22

Multipoint Services

.VLAN-based

.EoMPLS

.VPLS














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23



VLAN-based Multipoint service

Lookup Table

MAC  VLAN ID    VLAN type     Port
-10            port-based          1
-10                  tagged          3
-20            port-based          2
-20                  tagged          3

Lookup Table
MAC  VLAN ID    VLAN type     Port
-10            port-based          4
-10                  tagged          6
-20            port-based          5
-20                  tagged          6

Lookup Table

MAC  VLAN ID    VLAN type     Port
-10                  tagged          1
-10                  tagged          2
-10                  tagged          3
-20                  tagged          1
-20                  tagged          2

MTU-Metro
MTU-Metro
MTU-Metro









1

2

3

1

2

3

6

4

5

1

2

Lookup Table

MAC  VLAN ID    VLAN type     Port-10            port-based          2-10                  tagged          1




Optical Router
Core Router
Optical Router
Optical Router
Optical Router
Core Router
Core Router
Core Router
Core Router
CE1

CE

CE2

CE

CE3



VLAN 10

1


VLAN 20

Customer 1
Site 1

Customer 1
Site 2

Customer 1
Site 3

Customer 2
Site 1

Customer 2
Site 2












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24



Operation

MTU-Metro
Lookup Table

MAC  VLAN ID    VLAN type     Port
A       10            port-based          1
-10                  tagged          3
-20            port-based          2
-20                  tagged          3

Lookup Table

MAC  VLAN ID    VLAN type     Port
-10            port-based          4
A      10                  tagged         6
-20            port-based          5
-20                  tagged          6

Lookup Table

MAC  VLAN ID    VLAN type     Port
A       10                  tagged         1
-10                  tagged          2
-10                  tagged          3
-20                  tagged          1
-20                  tagged          2

MTU-Metro
MTU-Metro









1

2

3

1

2

3

6

4

5

1

2

Lookup Table

MAC  VLAN ID    VLAN type     Port
-10            port-based          2
A      10                  tagged         1





ARP

Optical Router
Core Router
Optical Router
Optical Router
Optical Router
Core Router
Core Router
Core Router
Core Router
CE1

A

ARP

ARP


10




10



10


ARP

ARP



ARP



B

C

192.168.10.1

192.168.10.2

192.168.10.3

Customer 1
Site 1

Customer 1
Site 2

Customer 1
Site 3

CE2

CE3












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25



Operation

MTU-Metro
Lookup Table

MAC  VLAN ID    VLAN type     Port
A       10            port-based        1
B       10                  tagged         3
-20            port-based          2
-20                  tagged          3

Lookup Table

MAC  VLAN ID    VLAN type     Port
B       10            port-based       4
A      10                  tagged         6
-20            port-based          5
-20                  tagged          6

Lookup Table

MAC  VLAN ID    VLAN type     Port
A       10                  tagged         1
B       10                  tagged         2
-10                  tagged          3
-20                  tagged          1
-20                  tagged          2

MTU-Metro
MTU-Metro









1

2

3

1

2

3

6

4

5

1

2

Lookup Table

MAC  VLAN ID    VLAN type     Port
-10            port-based          2
A      10                  tagged         1





Optical Router
Core Router
Optical Router
Optical Router
Optical Router
Core Router
Core Router
Core Router
Core Router
CE1

A

Reply
DA=A
SA=B



10



10





B

C

CE2

Reply
DA=A
SA=B

Reply
DA=A
SA=B

Reply
DA=A
SA=B

192.168.10.1

192.168.10.2

192.168.10.3

Customer 1
Site 1

Customer 1
Site 2

Customer 1
Site 3

CE3












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26



Operation

MTU-Metro
Lookup Table

MAC  VLAN ID    VLAN type     Port
A       10            port-based        1
B,C   10                  tagged         3
-20            port-based         2
-20                  tagged         3

Lookup Table

MAC  VLAN ID    VLAN type     Port
B       10            port-based         4
A, C   10                  tagged         6
-20            port-based         5
-20                  tagged         6

Lookup Table

MAC  VLAN ID    VLAN type     Port
A       10                  tagged         1
B       10                  tagged         2
C       10                  tagged          3
-20                  tagged          1
-20                  tagged          2

MTU-Metro
MTU-Metro









1

2

3

1

2

3

6

4

5

1

2

Lookup Table

MAC  VLAN ID    VLAN type     Port
C       10            port-based          2
A,B    10                  tagged         1





Optical Router
Core Router
Optical Router
Optical Router
Optical Router
Core Router
Core Router
Core Router
Core Router
CE1

A

B

C

CE2

192.168.10.1

192.168.10.2

192.168.10.3



Customer 1
Site 1

Customer 1
Site 2

Customer 1
Site 3

CE3

이후는Unicast (모든MAC이학습됨)
Multicast: Dest MAC을보고그대로포워딩












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27



VLAN-based Multipoint service: VPLS/TLS

MTU-Metro
Lookup Table

MAC  VLAN ID    VLAN type     Port
A       10            port-based        1
B,C   10                  tagged         3
-20            port-based         2
-20                  tagged         3

Lookup Table

MAC  VLAN ID    VLAN type     Port
B       10            port-based         4
A, C   10                  tagged         6
-20            port-based         5
-20                  tagged         6

Lookup Table

MAC  VLAN ID    VLAN type     Port
A       10                  tagged         1
B       10                  tagged         2
C       10                  tagged          3
-20                  tagged          1
-20                  tagged          3

MTU-Metro
MTU-Metro









1

2

3

1

2

3

6

4

5

1

2

Lookup Table

MAC  VLAN ID    VLAN type     Port
C       10            port-based          2
A,B    10                  tagged         1





Optical Router
Core Router
Optical Router
Optical Router
Core Router
Core Router
Core Router
Core Router
CE1

A

B

C

CE2

192.168.10.1

192.168.10.2

192.168.10.3

D

E

Optical Router

Optical Router
MAC         VLAN ID    Port
A                  10           1
B                  10           2
C                  10           3
D                  20           4
E                  20           5

L2 Switch






Lookup Table

Customer 1
Site 1

Customer 1
Site 2

Customer 1
Site 3

CE3












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28

Problem of VLAN-based VPLS






SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr
SwitchATMFastEthr












router-generic
router-generic
router-generic
router-generic
router-generic
router-generic
router-generic
router-generic
CPE

SwitchATMFastEthr
Ingress Rate Limiting/Shaping


100

100

100

100

100

100


802.1q tagged VLAN 설정
A Broadcast Domain over
Metro Ethernet Network
= Secure Tunnel 제공


802.1p CoS 제공
= Classification, Marking,  Priority queueing and scheduling





ESP network

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

.MAC address limitation

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

.No traffic engineering in metro core (STP Path)

.Slow restoration time (STP, RSTP, EAPS)



MAC     VLAN type   VLAN ID         Port
-tagged        100               1, 2
-tagged        200               1, 3
……….
A                                                       2  
B                                                       1
C                                                       2
……….





MAC A

MAC F

MAC B

MAC C

MAC M

MAC N

MAC G

MAC H












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29

EoMPLS



MTU-Metro
MTU-Metro









Optical Router
Core Router
Optical Router
Optical Router
Core Router
Core Router
Core Router
Core Router
CE

CE

CE

CE

CE




Optical Router
Optical Router
Optical Router
A

D

B

F

E

.VLAN의확장성한계, MAC learning 한계, QoS, BW 예약, 망복구능력등의문제에대한대안으로써Metro Ethernet에MPLS를도입함.



PE

P

P

PE

PE




P

Tunnel LSP

Ingress LER (PE)과Egress LER (PE)간에두개의LSP (Label Switched Path)를설정.Tunnel LSP: 두PEs간에MPLS frame을forwarding. Customer 구분없이MPLS망상에서경로만제공. ATM의VP (Virtual Path)개념. Tunnel LSP내에여러개의VC(Virtual Circuit)들이전달됨.

.VC LSP: Egress LER에서Tunnel LSP로들어오는패킷들이어느가입자의패킷이며, 또어떻게처리(어느outgoing interface로포워딩해주어야하는가, 등)해주어야하는가를결정하기위해서Tunnel LSP내에VC LSP가정의된다. ATM의VC개념. (for de-multiplexing senders.). VC label은LSR에서는안보이고Egress LER에서만보인다.











VC LSP


.Metro Ethernet Network의Edge (LER)에서Ethernet frame을MPLS lsp로mapping


(not Routing)

Ethernet
Or VLAN

Ethernet
Or VLAN












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30
catalyst
EoMPLS Operation



MTU-Metro
MTU-Metro









Optical Router
Core Router
Optical Router
Optical Router
Core Router
Core Router
Core Router
Core Router
CE

CE

CE

CE

CE




Optical Router
Optical Router
Optical Router
A

D

B

F

E

PE

P

P

PE

PE



P







Eth

10

25

Eth

Eth

10

35

Eth

10

17

Eth

Eth

Eth

20

25
Eth

20

35

Eth

20

17

Eth




Port   VLAN ID  outgoing port    Tunnel Label    VC Label
1             -3                      25                     10
2         100              3                      25                      20

1

2

L2

3




Incoming port   VC Label         outgoing port
1                   10                    5
1                   20                    6




Incoming port  Tunnel Label   outgoing port    Tunnel Label
3                   25                          4                35

4

1
5

6




Forwarding table

Forwarding table

Forwarding table












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31

catalyst
EoMPLS의장점



MTU-Metro
MTU-Metro









Optical Router
Core Router
Optical Router
Optical Router
Core Router
Core Router
Core Router
Core Router
CE

CE

CE

CE

CE




Optical Router
Optical Router
Optical Router
A

D

B

F

E

PE

P

P

PE

PE




P







Eth

10

25

Eth

Eth

10

35

Eth

10

17

Eth

Eth

Eth

20

25

Eth

20

35

Eth

20

17

Eth




Port   VLAN ID  outgoing port    Tunnel Label    VC label Label
1             -3                      25                     10
2         100              3                      25                      20

1

2

L2

3




Incoming port   VC Label         outgoing port
1                   10                    5
1                   20                    6




Incoming port  Tunnel Label   outgoing port    Tunnel Label
3                   25                          4                35

4

1

5

6




Forwarding table

Forwarding table

Forwarding table

Metro (또는WAN) core의LSR들은단지Tunnel Label값만보고MPLS frame을포워딩한다. 따라서Metro core에서는가입자측의MAC address를학습할필요가없다.

Ingress LER은Ethernet망에서들어오는Frame을{Physical port and 802.1q VLAN ID}값만참조하여어느VC-LSP로포워딩할것인지를판단한다.
따라서, Egress LER쪽의가입자의MAC address를학습하지않는다.

Egress LER은VC label값만을이용하여포워딩결정을내린다. 따라서, 가입자측의MAC address를학습하지않아도된다.















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32

EoMPLS: Martini Signaling



Eth-Frame


router
router
router
CE1


router
CE2

PE1

PE2


Eth/10


VLAN/100


Eth/20


VLAN/200

Configuration
Interface: Eth/20 VLAN/200
VC ID (=L2-FEC): 3001
Map Eth/20 VLAN/200 VCID 3001
VC label: 2000
Peer Router: 10.0.0.1
Targeted LDP


Configuration
Interface: Eth/10 VLAN/100
VC ID (=L2-FEC): 3001
Map Eth/10 VLAN/100 VCID 3001
VC label: 4000
Peer Router: 10.0.0.2

10.0.0.2

10.0.0.1

Label mapping msg (DU-LDP)
VC FEC TLV
VC Type = Ethernet
VC ID = 3001
VC label TLV
VC label = 2000


Label mapping msg (DU-LDP)
VC FEC TLV
VC Type = Ethernet
VC ID = 3001
VC label TLV
VC label = 4000


Eth-Frame

2000

100

L2H

Eth-Frame

Tunnel LSP



A PW (2 VC lsps) setup !




vc2000

vc4000



VLAN/100
Eth/10

VLAN/200
Eth/20

PW = VLL

Site 2가PE2의Ethernet port 20에VLAN ID 200의Ethernet circuit에붙어있다.
Site 2로보내려면Label 2000을붙여서보내라

Site 2

Site 1

VCID
In
Out

3001
VC label 4000
Eth/10 VLAN/100

Eth/10 VLAN/100
?


VCID
In
Out

3001
VC label 4000
Eth/10 VLAN/100

Eth/10 VLAN/100
2000


VCID
In
Out

3001
VC label 2000
Eth/20 VLAN/200

Eth/20 VLAN/200
?


VCID
In
Out

3001
VC label2000
Eth/20 VLAN/200

Eth/20 VLAN/200
4000















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33

MTU-Metro
ERS service using EoMPLS

MTU-Metro
MTU-Metro







Optical Router
Core Router
Optical Router
Optical Router
Core Router
Core Router
CE




Optical Router
Optical Router
Optical Router
PE

P

P

PE

PE










Tagged VLAN
100

Tagged VLAN
101



Subnet 1 (192.182.10/24)

HQ site Router
One subnet for each remote site

Subnet 2 (192.182.20/24)


CE (L2 SW)

CE (L2 SW)

PE는port #와VLAN ID만을가지고어느VC-LSP로포워딩할것인지를결정하기떄문에VLAN Tag를달고들어오지않으면Site 2로포워딩할지Site 3으로포워딩할지를판단할수없다.
따라서, Site 1의CE가Site별로구분된VLAN Tag를달아서보내야한다.
Site 2와Site 3간의통신을위해서는CE가반드시라우터이어야한다.












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34

VPLS

.What is VPLS ?

.VPLS (Virtual Private LAN Service) is a class of VPN that allows the connection of multiple sites in a single bridged domain over a provider managed MPLS network


.How it works ?

.Bridging capable PE routers are connected with a full mesh of MPLS LSP tunnels

.Per-Service VC labels are negotiated using draft-Martini

.Replicates unknown/broadcast traffic in a service domain

.MAC learning over tunnel & access ports

.Separate FIB per VPLS


.IETF draft-lasserre-vkompella-vpls-ppvpn-04.txt

.Vendors: Cisco, Cosine, Force10, Foundry, Juniper, Laurel, Nortel, Riverstone, Timetra (Alcatel)














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35


1


router
router
router
CE2


router
CE1

PE2
PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3

router
PE4

router
PE5

router
P

router
P







M2

M1

M3
M4

VPLS Operation












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36




router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3




router
CE3


Eth30

Site 3

VCID 1000
vc label 102

VCID 1000
vc label 103

Martini-signaling (Targeted LDP/DU mode)

1. Operator는Site 1, 2, 3이연결되어있는PE1, PE2, PE3간에full-mesh로VPLS instance를하나생성한다. 이VPLS instance에는하나의unique VCID가할당된다.1.1 각PE는Targeted LDP session을통해downstream-unsolicited mode로vc-label을배포한다. 즉, VPLS에관한label값을egress LER이할당하여이를ingress LER에게바로배포한다.

Use vc-label 102 for VCID 1000 when sending to me
(나한테보낼때, vc-label 102를써서보내!)

Use vc-label 103 for VCID 1000 when sending to me
(나한테보낼때, vc-label 103를써서보내!)

VPLS: Control Plane (1)












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37




router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3




router
CE3


Eth30

Site 3




router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth/30

Site 3

VCID 1000
vc label 102

VCID 1000
vc label 103



vc label 102

vc label 103

VC-lsp setup (created)

1.1 VPLS 1000을위한vc-lsp 102와vc-lsp 103 생성됨.


VPLS: Control Plane (2)












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38




router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3




router
CE3


Eth30

Site 3




router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3

VCID 1000
vc label 201

VCID 1000
vc label 203



vc label 102

vc label 103


VCID 1000
vc label 302


VCID 1000
vc label 301

vc label 201



vc label 301


vc label 302


vc label 203

Martini-signaling (Targeted LDP/DU mode)

p1

p2

p3

p4

p5

p6

VCID 1000
Eth20, p1/vc-lsp102, p2/vc-lsp302

VCID 1000
Eth10, p3/vc-lsp201, p4/vc-lsp301

VCID 1000
Eth30, p5/vc-lsp103, p6/vc-lsp203

A VPLS (VCID=1000) is setup
A VPLS for Customer A is setup between PE1, PE2 and PE3


VPLS: Control Plane (3)












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39





router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

MAC
Interface

Eth20

P1/vc-lsp102

P2/vc-lsp302


FIB for VPLS 1000

router
PE4

IP

M2

M1

1. PE2에Port 20을통해Ethernet frame이들어오면, PE2는frame이들어온물리적인Port (또는Port + VLAN ID)를통해이frame이VPLS 1000에속한프레임을알아낸다.
: Port or (Port + VLAN ID) .VPLS ID/FIB


Data Plane

M2

M1

M3

SA  DA

IP

M2

M1

Ethernet frame

Destination MAC address

Source MAC address




VPLS: Data Plane (1)












www.netmanias.com


40




router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

IP

M2

M1

1.1 Source MAC learning: PE2는도착한프레임의source MAC address를학습하여SA=M2를VPLS 1000의FIB(Forwarding Information Base)의Eth20에등록한다.

MAC
Interface

M2
Eth20

P1/vc-lsp102

P2/vc-lsp302


FIB for VPLS 1000


M2

M1

M3


VPLS: Data Plane (2)












www.netmanias.com


41





router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

IP

M2

M1

102

Tunnel
Label

L2H

IP

M2

M1

302

Tunnel
Label

L2H

1.2 Destination MAC lookup: VPLS 1000의FIB를lookup한다. Destination MAC = M1이FIB entry에없으면(즉, 학습이되어있지않으면-Unknown frame이면), VPLS 1000에속한모든PE로프레임을flooding한다. 즉, 도착한프레임을복제(replication)하여p1/vc-lsp102를통해PE1으로, p2/vc-lsp 302를통해PE3로전달한다. (물론PE4로는전달하지않는다.) 이때vc-label과tunnel label을부착하여전달한다.

MAC
Interface

M2
Eth20

P1/vc-lsp102

P2/vc-lsp302


FIB for VPLS 1000



IP

M2

M1

M2

M1

M3

IP

M2

M1

102

Tunnel
Label

L2H

VC Label (Demultiplexor)


Tunnel Label

Transport Header

MPLS frame




VPLS: Data Plane (3)












www.netmanias.com


42





router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

IP

M2

M1

102

Tunnel
Label

L2H

IP

M2

M1

302

Tunnel
Label

L2H

2. Core LSRs (P Routers): PW상의모든LSR들은Outer label (Tunnel label)값만참조하여해당PE까지프레임을전달한다(label swapping). LSR들은Tunnel label값만참조하여포워딩하기때문에현재자기가포워딩하고있는프레임들이어느VPLS에속한프레임인지는모른다.

MAC
Interface

M2
Eth20

P1/vc-lsp102

P2/vc-lsp302


FIB for VPLS 1000



M2

M1

M3


VPLS: Data Plane (4)












www.netmanias.com


43





router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

IP

M2

M1

102

Tunnel
Label

L2H

IP

M2

M1

302

Tunnel
Label

L2H

3. PE1 (Egress LER): PE1는도착한프레임의vc-label값을참조하여이프레임이어느VPLS에속한프레임인지를알아낸다(이예에서는VPLS 1000에속한프레임임을알게된다).
: vc-label lookup .VPLS ID/FIB

MAC
Interface

Eth10

P3/vc-lsp201

P4/vc-lsp301


FIB for VPLS 1000

M2

M1

M3



VPLS: Data Plane (5)












www.netmanias.com


44






router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

IP

M2

M1

102

Tunnel
Label

L2H

IP

M2

M1

302

Tunnel
Label

L2H

3.1 Source MAC learning: 도착한MPLS 프레임의label를제거(POP)하고이더넷프레임의source MAC address를학습한다. PE1은M2가vc-label 102를통해서왔으므로M2가PE2뒤에있음을알게된다. 따라서, M2를vc-label201 인터페이스에학습시킨다. PE3도동일한동작을수행한다.

MAC
Interface

Eth10

M2
P3/vc-lsp201

P4/vc-lsp301


FIB for VPLS 1000

MAC
Interface

Eth30

P5/vc-lsp103

M2
P6/vc-lsp203


FIB for VPLS 1000

M2

M1

M3


VPLS: Data Plane (6)












www.netmanias.com


45






router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

IP

M2

M1

IP

M2

M1

3.2 Destination MAC lookup: DA=M1이VPLS 1000의FIB에학습이되어있지않으므로VPLS 1000에속한모든Port로이더넷프레임을flooding한다(이예에서는Eth10으로만전달된다). 이때loop 방지를위해vc-lsp에서온프레임은VPLS에속한다른vc-lsp로flooding하지않는다. (split-horizon rule). 즉, P4/vc-lsp301로는flooding하지않는다.

MAC
Interface

Eth10

M2
P3/vc-lsp201

P4/vc-lsp301


FIB for VPLS 1000

MAC
Interface

Eth30

P5/vc-lsp103

M2
P6/vc-lsp203


FIB for VPLS 1000



M2

M1

M3


VPLS: Data Plane (7)












www.netmanias.com


46






router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

4. M1 reply: Site 1의station 1이reply를하여DA=M2, SA=M1인이더넷프레임을PE1으로전달한다.

MAC
Interface

Eth10

M2
P3/vc-lsp201

P4/vc-lsp301


FIB for VPLS 1000

MAC
Interface

Eth30

P5/vc-lsp103

M2
P6/vc-lsp203


FIB for VPLS 1000

IP

M1

M2


M2

M1

M3


VPLS: Data Plane (8)












www.netmanias.com


47






router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

5. PE1에Port 10을통해Ethernet frame이들어오면, PE1는frame이들어온물리적인Port (또는Port + VLAN ID)를통해이frame이VPLS 1000에속한프레임을알아낸다.

MAC
Interface

Eth10

M2
P3/vc-lsp201

P4/vc-lsp301


FIB for VPLS 1000

MAC
Interface

Eth30

P5/vc-lsp103

M2
P6/vc-lsp203


FIB for VPLS 1000

IP

M1

M2



VPLS: Data Plane (9)












www.netmanias.com


48






router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

5.1 Source MAC learning: PE1는도착한프레임의source MAC address를학습하여SA=M1를VPLS 1000의FIB(Forwarding Information Base)의Eth10에등록한다.

MAC
Interface

M1
Eth10

M2
P3/vc-lsp201

P4/vc-lsp301


FIB for VPLS 1000

MAC
Interface

Eth30

P5/vc-lsp103

M2
P6/vc-lsp203


FIB for VPLS 1000

IP

M1

M2

M2

M1

M3


VPLS: Data Plane (10)












www.netmanias.com


49






router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

5.2 Destination MAC lookup: PE1은이더넷프레임의destination MAC address를VPLS 1000의FIB에서Lookup한다. M2가학습되어있으므로P3/vc-lsp201을통해프레임을전달한다.

MAC
Interface

M1
Eth10

M2
P3/vc-lsp201

P4/vc-lsp301


FIB for VPLS 1000

MAC
Interface

Eth30

P5/vc-lsp103

M2
P6/vc-lsp203


FIB for VPLS 1000

IP

M1

M2

IP

M1

M2

201

Tunnel
Label

L2H


M2

M1

M3


VPLS: Data Plane (11)












www.netmanias.com


50






router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

6. PE2는SA=M1을학습하여FIB entry(P1/vc-lsp102)에등록하고, DA=M2는학습이되어있으므로Eth20 port를통해포워딩한다.

MAC
Interface

M1
Eth10

M2
P3/vc-lsp201

P4/vc-lsp301


FIB for VPLS 1000

MAC
Interface

Eth30

P5/vc-lsp103

M2
P6/vc-lsp203


FIB for VPLS 1000

IP

M1

M2

IP

M1

M2

201

Tunnel
Label

L2H


MAC
Interface

M2
Eth20

M1
P1/vc-lsp102

P2/vc-lsp302


FIB for VPLS 1000


M2

M1

M3


VPLS: Data Plane (12)












www.netmanias.com


51






router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201



vc label 301


vc label 302


vc label 203

p1

p2

p3

p4

p5

p6

router
PE4

7. 몇번의Unknown frame들이flooding 방식으로오고가면, 각PE의VPLS 1000의FIB table은아래와같이MAC entry들이등록되게된다.

MAC
Interface

M1
Eth10

M2
P3/vc-lsp201

M3
P4/vc-lsp301


FIB for VPLS 1000

MAC
Interface

M3
Eth30

M1
P5/vc-lsp103

M2
P6/vc-lsp203


FIB for VPLS 1000


MAC
Interface

M2
Eth20

M1
P1/vc-lsp102

M3
P2/vc-lsp302


FIB for VPLS 1000

M2

M1

M3


VPLS: Data Plane (13)












www.netmanias.com


52






router
router
router
CE2


router
CE1

PE2

PE1

Eth20


Eth10

Site 1

Site 2

router
PE3


router
CE3


Eth30

Site 3



vc label 102

vc label 103

vc label 201

 

 

     
         
     

 

     
     

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