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
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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
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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
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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
동
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
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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
동
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
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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
동
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
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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
동
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
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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
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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
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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
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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
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국내의경우
.원래Metro Ethernet은Enterprise의BW bottleneck을해소해주기위한기술로서미국에서시장에처음출현(Telseon, Yipes, Cogent)
.국내에서는Residential Broadband Solution과게임방으로Metro Ethernet이먼저도입됨.
.2003년부터기업용Metro Ethernet 서비스가도입되기시작하고있음.
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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
동
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
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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
芝
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
砧
.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
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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
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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
…
동
동
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
…
동
L3
L3 SW
동
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
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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
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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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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)
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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)
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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)
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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)
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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)
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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
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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
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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)
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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)
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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)
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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)
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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)
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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)
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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
